Difference between revisions of "GChemPaint/C3/Analysis-of-compounds/English"

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(Created page with 'Title of the tutorial: '''Analysis Of Compounds ''' Author: '''Madhuri Ganapathi''' Key words:''' Molecular contextual menu,Chemical calculator, Composition, Isotropic pattern,…')
 
 
(9 intermediate revisions by one other user not shown)
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Key words:''' Molecular contextual menu,Chemical calculator, Composition, Isotropic pattern, video tutorial'''
 
Key words:''' Molecular contextual menu,Chemical calculator, Composition, Isotropic pattern, video tutorial'''
 +
  
 
<font size="2">
 
<font size="2">
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* Molecular contextual menu
 
* Molecular contextual menu
  
−
* Save the molecule in .mol format  
+
* Save the molecule in '''.mol''' format  
  
 
* Add and edit a reaction
 
* Add and edit a reaction
Line 50: Line 51:
 
'''GChemPaint.'''
 
'''GChemPaint.'''
  
−
If not, for relevant tutorials, please visit our website.
+
If not, for relevant tutorials, please visit our website.
 
|-
 
|-
−
||Switch to GChemPaint window
+
||Switch to '''GChemPaint''' window
−
||Let us open a new GChemPaint window.
+
||I have opened a new '''GChemPaint''' window.
 +
 
 
|-
 
|-
 
||Click on '''Use or manage templates''' tool.
 
||Click on '''Use or manage templates''' tool.
Line 59: Line 61:
  
 
'''Templates''' tool property page opens below.
 
'''Templates''' tool property page opens below.
 +
 
|-
 
|-
−
|| Click on '''Amino Acids'''.
+
||Click on '''Amino Acids'''.
 
Select '''Alanine''' from the list.  
 
Select '''Alanine''' from the list.  
  
 
Point to '''Alanine''' structure.
 
Point to '''Alanine''' structure.
−
||Click on the '''Templates''' drop-down button, which shows '''Amino acids''', by default.
+
||Click on '''Amino Acids''' on '''Templates''' drop down button.
  
 
Select '''Alanine''' from the list.  
 
Select '''Alanine''' from the list.  
  
 
Structure of '''Alanine''' is loaded onto the '''Templates''' property page.
 
Structure of '''Alanine''' is loaded onto the '''Templates''' property page.
 +
 +
|-
 +
||Click on structure>>click on the '''Display area''' to load it.
 +
||Click on the structure and click on  '''Display area''' to load it.
 +
 +
|-
 +
||
 +
||I will explain about contextual menu of '''Alanine''' molecule.
 +
 +
|-
 +
||Right click on molecule> Submenu opens>>
 +
 +
select '''Molecule''' >> molecule's contextual menu opens.
 +
||Right click on the molecule.
 +
 +
A sub-menu opens.
 +
 +
Select '''Molecule'''; a contextual menu opens alongside.
 +
 +
|-
 +
||Point to the menu items.
 +
||Contextual menu contains different menu items, of which, I will discuss about-
 +
 +
* '''NIST WebBook page for this molecule'''
 +
 +
*''' PubChem page for this molecule''' and
 +
 +
* '''Open in Calculator'''
 +
 +
|-
 +
||Click on '''NIST WebBook page for this molecule'''
 +
||Click on '''NIST Web page for this molecule'''
 +
 +
|-
 +
||Move the cursor over the page.
 +
||'''Alanine's NIST''' webpage opens.
 +
 +
Webpage shows all the details about '''Alanine'''.
 +
 +
|-
 +
||Right click on '''Alanine''' to open '''PubChem''' page for this molecule.
 +
 +
Come back to '''GChemPaint''' editor.
 +
||Come back to '''GChemPaint''' editor.
 +
 +
Right click on '''Alanine''' to open the '''PubChem page for this molecule'''.
 +
 +
|-
 +
||Point to the structure on the webpage.
 +
||Click on '''Alanine''' structure on this webpage.
 +
 +
A new web-page with '''2D Structure''' and '''3D Conformer''' tabs, is seen.
 +
 +
|-
 +
||Click on '''3D Conformer''' tab to view the structure in 3 dimension
 +
||Click on '''3D Conformer''' tab to view '''Alanine'''  in 3 dimensions.
 +
 +
|-
 +
||Click on the 3D structure.
 +
||Click on the displayed 3D structure.
 +
 +
This opens the structure in a separate window with some controls on the top and on the left.
 +
 +
|-
 +
||Click on the '''Rotation''' icon
 +
||Click on the '''Rotation''' icon to rotate the structure in various directions.
 +
 +
|-
 +
||Click on ''' H''' icon
 +
 +
Point to the '''Hydrogen''' atoms in white.
 +
||On the same page, click on '''H''' icon to show '''hydrogens'''.
 +
 +
These are the '''Hydrogens'''.
 +
 +
|-
 +
||Switch to '''GChemPaint'''.
 +
||Let's switch to '''GChemPaint''' window again.
 +
 +
|-
 +
||Right click on '''Alanine''' to '''Open in Calculator'''.
 +
 +
Move the cursor on '''Chemical calculator''' window.
 +
||Right click on '''Alanine''';  choose the option '''Open in Calculator'''.
 +
 +
'''Chemical calculator''' window opens.
 +
 +
If not, please install the same, using '''Synaptic Package Manager''', as in the '''Overview''' tutorial.
 +
 +
|-
 +
||Point to the tabs.
 +
||This Window has two tabs at the bottom - '''Composition''' and '''Isotopic Pattern.'''
 +
 +
|-
 +
||Move the cursor to all the components one by one.
 +
||'''Composition''' tab has the following components-
 +
 +
* '''Formula'''
 +
 +
* '''Raw formula'''
 +
 +
* '''Molecular weight in g.mol-1''' ( gram.mole-inverse)
 +
 +
* '''Compound's elemental mass percentage(%) analysis'''.
 +
 +
|-
 +
||Click on '''Isotropic Pattern''' tab.
 +
 +
Point to the graph and the peak.
 +
||Click on the '''Isotropic Pattern''' tab.
 +
 +
It shows a graph of '''mass spectrum''' with a peak at '''Molecular weight''' of the compound.
 +
 +
|-
 +
||'''Slide Number 5'''
 +
 +
'''Assignment'''
 +
||As an assignment
 +
 +
1. Select other '''Amino Acids''' from '''Templates''' list.
 +
 +
2. Obtain their '''Composition''' and '''Isotropic pattern'''.
 +
 +
|-
 +
||Switch to GChemPaint window.
 +
||I have opened a new '''GChemPaint''' window.
 +
 +
|-
 +
||Click on '''Add a chain''' tool>> click and drag the chain to 4 carbons.
 +
||Let's draw '''1,3-butadiene''' structure.
 +
 +
Click on '''Add a chain''' tool.
 +
 +
Click and drag the chain to 4 carbons.
 +
 +
|-
 +
||Click on '''Add a bond''' tool.
 +
||Click on '''Add a bond''' tool and click on first and third bonds, to form double bonds.
 +
 +
|-
 +
||Right click at each position to show  atoms.
 +
||Right click at each position to show atoms.
 +
 +
Click on '''Atom''' then click on '''Display symbol'''.
 +
 +
|-
 +
||Click on '''Save the current file''' icon on the tool bar.
 +
||To convert '''1,3-butadiene''' 2D structure to 3D structure, click on the '''Save''' icon on the tool bar.
 +
 +
|-
 +
||'''Save as''' dialog box opens.
 +
||'''Save as''' dialog box opens.
 +
 +
|-
 +
||Point to  '''File type''' field>>select '''MDL Molfile Format.'''
 +
||In the '''File type''' field, select '''MDL Molfile Format.'''
 +
 +
|-
 +
||Type filename as '''1,3-butadiene'''.
 +
 +
Click on '''Save''' button.
 +
||Type the filename as '''1,3-butadiene'''.
 +
 +
Select '''Desktop''' to save the file on '''Desktop'''.
 +
 +
Then click on '''Save''' button.
 +
 +
|-
 +
||Type and show '''1,3-butadiene.mol''' and '''1,3-butadiene.mdl'''
 +
||Alternatively, you can also save the file with extension ''.mol'' or ''.mdl'' directly.
 +
 +
For example, type the filename as '''1,3butadiene.mol''' or '''.mdl'''
 +
 +
Click on '''Save''' button.
 +
 +
|-
 +
||Right click on saved file and '''Open With Molecules viewer'''.
 +
||To view the structure in 3D, right click on the molecule.
 +
 +
Select the option '''Open With Molecules viewer'''.
 +
 +
This is''' 1,3butadiene''' in 3D.
 +
 +
Please note, we cannot make changes in the structure.
 +
 +
|-
 +
||Move the mouse pointer over the structure
 +
||To rotate the structure, place the cursor on the structure, hold and drag the mouse.
 +
 +
|-
 +
||'''Slide Number 6'''
 +
 +
'''Assignment'''
 +
||As an assignment,
 +
 +
Convert '''Benzene''' structure from 2D to 3D.
 +
 +
|-
 +
||
 +
||Now let's learn to draw chemical reactions and reaction conditions.
 +
 +
|-
 +
||'''Slide Number 7'''
 +
 +
(Show Screen shot of the reaction)
 +
||This is a chemical reaction of
 +
 +
'''Ethyl chloride'''  ('''C<sub>2</sub>H<sub>5</sub>Cl''') with '''Alcoholic Potassium hydroxide(Alc.KOH)''' and '''Aqueous Potassium hydroxide(Aq.KOH)''' to yield '''Ethene(C<sub>2</sub>H<sub>4</sub>)''' and '''Ethanol(C<sub>2</sub>H<sub>5</sub>OH)''' respectively.
 +
 +
|-
 +
||Point to the new window.
 +
||I have opened a new '''GChemPaint''' window.
 +
 +
|-
 +
||
 +
||Let's first draw structure of '''Ethyl chloride.'''
 +
 +
|-
 +
||Click on '''Add a chain''' tool.
 +
 +
Click on the '''Display area.'''
 +
||Click on '''Add a chain''' tool.
 +
 +
Click on the '''Display area'''.
 +
 +
|-
 +
||Right click on the chain to display atoms on first and second bond positions.
 +
||Right click on the chain to display atoms on first and second bond positions.
 +
 +
|-
 +
||Click on '''Current element''' drop down arrow button >> select '''Cl''' from table.
 +
||Click on '''Current element''' drop down arrow button.
 +
 +
Select '''Cl''' from table.
 +
|-
 +
||Click on '''Add or modify an atom''' tool>>Click on the third position.
 +
 +
Point to the structure.
 +
||Click on '''Add or modify an atom''' tool.
 +
 +
Click on the third bond position.
 +
 +
Structure  of '''Ethyl chloride''' is drawn.
 +
 +
|-
 +
||Click on '''Add or modify a group of atoms''' tool >>Click on the '''Display area'''>>Type '''Alc.KOH''' >>Click type '''Aq.KOH'''.
 +
||Click on '''Add or modify a group of atoms''' tool.
 +
 +
Click on the '''Display area'''. Type '''Alc.KOH'''.
 +
 +
Click again and type '''Aq.KOH'''
 +
 +
|-
 +
||Click on '''Add an arrow for an irreversible reaction''' tool.
 +
||Click on '''Add an arrow for an irreversible reaction''' tool.
 +
 +
|-
 +
||Point to  '''Arrow length.'''
 +
||You can change the '''Arrow length''' using the scroller here. 
 +
 +
I will increase the arrow length to 280.
 +
 +
|-
 +
||On the '''Display area''', beside '''Ethyl Chloride'''.
 +
||Click on the '''Display area''',  beside '''Ethyl Chloride'''. 
 +
 +
|-
 +
||Click below '''Ethyl Chloride'''.
 +
||Click below '''Ethyl Chloride'''.
 +
 +
Hold the mouse and rotate the arrow to point downwards.
 +
 +
|-
 +
||Click on '''Selection''' tool>>Position '''Alc.KOH''' above the arrow>> '''Aq.KOH''' close to the arrow.
 +
||Click on the '''Selection''' tool.
 +
 +
Position '''Alcoholic Potassium Hydroxide (Alc.KOH)''' above first arrow.
 +
 +
Position '''Aqueous Potassium Hydroxide (Aq.KOH)''' close to second arrow.
 +
 +
|-
 +
||Select '''Alc.KOH''' and right click on the arrow.
 +
||Select '''Alcoholic Potassium hydroxide(Alc.KOH)'''.
 +
 +
Right click on the arrow.
 +
 +
|-
 +
||A submenu opens, select '''Arrow''' and click on '''Attach selection to arrow'''.
 +
||A sub-menu opens.
 +
 +
Select '''Arrow''' and click on '''Attach selection to arrow'''.
 +
 +
|-
 +
||A dialog box with heading '''Arrow associated''' opens.
 +
||A dialog box with heading '''Arrow associated''' opens.
 +
 +
|-
 +
||Click on '''Role''' drop down list
 +
 +
Select '''Catalyst''' from the list. Click on '''Close'''.
 +
||Click on '''Role''' drop down list.
 +
 +
Select '''Catalyst''' from the list. Click on '''Close'''.
 +
 +
|-
 +
||Drag to see '''Alc.KOH''' attaches to the arrow as a '''Catalyst'''.
 +
||Drag arrow to check if '''Alcoholic Potassium Hydroxide (Alc.KOH)''' attaches to the arrow, as a '''catalyst'''.
 +
 +
|-
 +
||Point to '''(Aq.KOH)'''
 +
||Let's repeat the process for '''Aqueous Potassium Hydroxide(Aq.KOH)'''.
 +
 +
Drag to see the attachement as a '''catalyst'''.
 +
|-
 +
 +
||Click on '''Selection''' tool to select '''Ethyl chloride'''.
 +
||Click on '''Selection''' tool to select '''Ethyl chloride''' structure.
 +
 +
|-
 +
||Press '''CTRL + C''' to copy >> press '''CTRL+V''' to paste the structures.
 +
||Press '''CTRL + C''' to copy and '''CTRL+V''' twice to paste the structures.
 +
 +
|-
 +
||Cursor on the structures.
 +
||Place the structures at proper positions by dragging.
 +
 +
|-
 +
||Show the reaction slide
 +
||In the reactions '''Ethyl chloride''' reacts with '''Alcoholic potassium Hyroxide''' to give '''Ethene'''.
 +
 +
'''Ethyl chloride''' reacts with '''Aqueous Potassium Hydroxide''' to give '''Ethanol'''.
 +
 +
|-
 +
||Click on the '''Eraser''' tool, delete '''Cl''' bond.
 +
||To obtain '''Ethene''', click on '''Eraser''' tool and delete '''Cl''' bond of  '''Ethyl chloride'''.
 +
 +
'''Ethane''' is formed.
 +
 +
|-
 +
||Click on '''Current Element''' arrow.
 +
||In the Tool box, ensure that '''Current element''' is '''Carbon'''.
 +
 +
|-
 +
||Click on '''Add a bond''' tool>>Click on the bond.
 +
||Click on '''Add a bond''' tool and click on the bond to obtain a double bond.
 +
 +
'''Ethene''' is formed.
 +
 +
|-
 +
||Press '''O''' on the keyboard.
 +
||To obtain '''Ethanol''', press '''O''' on the keyboard.
 +
 +
|-
 +
||Click on '''Add or modify an atom''' tool and then click on '''Cl'''.
 +
||Click on '''Add or modify an atom''' tool and then click on '''Cl''' of  '''Ethyl chloride'''.
 +
 +
|-
 +
||
 +
||Now let's convert the reactants and products from 2D to 3D.
 +
 +
|-
 +
||Point to new '''GChemPaint''' file.
 +
||Open a new file,  copy '''Ethyl Chloride''' and paste it into new file.
 +
 +
|-
 +
||Click on '''Save ''' button >> '''Save as''' dialog box opens.
 +
||Click on '''Save ''' button.
 +
 +
'''Save as''' dialog box opens.
 +
 +
|-
 +
||Type file name as '''Ethyl Chloride.mol'''
 +
||Type the file name as '''Ethyl Chloride.mol'''
 +
 +
|-
 +
||Click on '''Desktop''' to save your file on your '''Desktop'''>> Click on '''Save''' button.
 +
||Click on '''Desktop''' to save your file on your '''Desktop'''.
 +
 +
Click on '''Save''' button.
 +
 +
|-
 +
||Point to '''Ethene'''
 +
 +
Point to '''Ethanol'''
 +
Point to the files on the '''Desktop'''.
 +
||Likewise copy '''Ethene''' into a new file.
 +
 +
Save as '''Ethene.mol'''.
 +
 +
Copy '''Ethanol''' into a new file.
 +
 +
Save as '''Ethanol.mol'''
 +
 +
I have already saved the files on my '''Desktop'''.
 +
 +
|-
 +
||
 +
||I will minimize the current  window.
 +
 +
And I will go to '''Desktop''' folder where I had saved my files.
 +
 +
|-
 +
||Right click on the  file '''Open with Molecules viewer'''.
 +
||To view the compound in 3D, right click on the file, choose '''Open with Molecules viewer'''.
 +
 +
Likewise, I will open all the files with '''Molecules viewer'''
 +
 +
Observe the compounds in 3D.  <Pause>
 +
 +
|-
 +
||
 +
||Let's summarize what we have learnt.
 +
 +
|-
 +
||'''Slide Number 8'''
 +
'''Summary'''
 +
||In this tutorial we have learnt
 +
 +
* '''NIST WebBook page for this molecule.'''
 +
 +
* '''Pub-Chem page for the  molecule'''
 +
 +
* Find molecular weight of the compound using '''Chemical calculator'''.
 +
 +
* Obtain graph of '''mass spectrum''' of a molecule
 +
 +
* Save the molecule in '''.mol''' format
 +
 +
* Add reaction conditions and reagents on the reaction arrow
 +
 +
* Add and edit a reaction
 +
 +
* Convert reaction molecules into 3D structures
 +
 +
|-
 +
||'''Slide Number 9'''
 +
 +
'''Assignment'''
 +
||AS an assignment
 +
 +
Draw chemical reaction of:
 +
 +
1)'''Propene''' (C3H6)(C<sub>3</sub>H<sub>6</sub>) and '''Bromine'''(Br-Br) molecule with '''Carbon tetra chloride'''(CCl<sub>4</sub>) as a '''catalyst'''.
 +
 +
2)'''Benzene''' and '''Chlorine'''(Cl-Cl) molecule with '''Anhydrous Aluminum Chloride'''(AlCl<sub>3</sub>) as a '''catalyst'''.
 +
 +
Your completed assignment should look like this.
 +
 +
|-
 +
||'''Slide Number 10'''
 +
 +
'''Acknowledgement'''
 +
||Watch the video available at this URL.
 +
 +
'''http://spoken-tutorial.org/What_is_a_Spoken_ Tutorial'''
 +
 +
It summarizes the Spoken Tutorial project
 +
 +
If you do not have good bandwidth, you can download and watch it
 +
|-
 +
||'''Slide Number 11'''
 +
||The Spoken Tutorial Project Team:
 +
 +
Conducts workshops using spoken tutorials
 +
 +
Gives certificates to those who pass an on-line test
 +
 +
For more details, please write to
 +
 +
'''contact@spoken-tutorial.org'''
 +
|-
 +
||'''Slide number 12'''
 +
||Spoken Tutorial Project is a part of the Talk to a Teacher project
 +
 +
It is supported by the National Mission on Education through ICT, MHRD, Government of India
 +
 +
More information on this Mission is available at this link
 +
 +
'''http://spoken-tutorial.org/NMEICT-Intro]'''
 +
|-
 +
||
 +
||This is '''Madhuri Ganapathi''' from '''IIT Bombay''' signing off. Thank you for joining.
 
|-
 
|-

Latest revision as of 14:15, 13 March 2014

Title of the tutorial: Analysis Of Compounds

Author: Madhuri Ganapathi

Key words: Molecular contextual menu,Chemical calculator, Composition, Isotropic pattern, video tutorial


Visual Cue Narration

Slide Number 1

Title Slide

Hello everyone.

Welcome to this tutorial on Analysis of Compounds in GChemPaint.

Slide Number 2

Learning Objectives

In this tutorial, we will learn about,
  • Molecular contextual menu
  • Save the molecule in .mol format
  • Add and edit a reaction
  • Add reaction conditions and reagents on the reaction arrow
  • Convert reaction molecules into 3D
Slide Number 3

System Requirement

For this tutorial I am using

Ubuntu Linux OS version 12.04.

GChemPaint version 0.12.10.

You will also require Internet connectivity.

Slide Number 4

Pre-requisites

To follow this tutorial, you should be familiar with

GChemPaint.

If not, for relevant tutorials, please visit our website.

Switch to GChemPaint window I have opened a new GChemPaint window.
Click on Use or manage templates tool. Click on Use or manage templates tool.

Templates tool property page opens below.

Click on Amino Acids.

Select Alanine from the list.

Point to Alanine structure.

Click on Amino Acids on Templates drop down button.

Select Alanine from the list.

Structure of Alanine is loaded onto the Templates property page.

Click on structure>>click on the Display area to load it. Click on the structure and click on Display area to load it.
I will explain about contextual menu of Alanine molecule.
Right click on molecule> Submenu opens>>

select Molecule >> molecule's contextual menu opens.

Right click on the molecule.

A sub-menu opens.

Select Molecule; a contextual menu opens alongside.

Point to the menu items. Contextual menu contains different menu items, of which, I will discuss about-
  • NIST WebBook page for this molecule
  • PubChem page for this molecule and
  • Open in Calculator
Click on NIST WebBook page for this molecule Click on NIST Web page for this molecule
Move the cursor over the page. Alanine's NIST webpage opens.

Webpage shows all the details about Alanine.

Right click on Alanine to open PubChem page for this molecule.

Come back to GChemPaint editor.

Come back to GChemPaint editor.

Right click on Alanine to open the PubChem page for this molecule.

Point to the structure on the webpage. Click on Alanine structure on this webpage.

A new web-page with 2D Structure and 3D Conformer tabs, is seen.

Click on 3D Conformer tab to view the structure in 3 dimension Click on 3D Conformer tab to view Alanine in 3 dimensions.
Click on the 3D structure. Click on the displayed 3D structure.

This opens the structure in a separate window with some controls on the top and on the left.

Click on the Rotation icon Click on the Rotation icon to rotate the structure in various directions.
Click on H icon

Point to the Hydrogen atoms in white.

On the same page, click on H icon to show hydrogens.

These are the Hydrogens.

Switch to GChemPaint. Let's switch to GChemPaint window again.
Right click on Alanine to Open in Calculator.

Move the cursor on Chemical calculator window.

Right click on Alanine; choose the option Open in Calculator.

Chemical calculator window opens.

If not, please install the same, using Synaptic Package Manager, as in the Overview tutorial.

Point to the tabs. This Window has two tabs at the bottom - Composition and Isotopic Pattern.
Move the cursor to all the components one by one. Composition tab has the following components-
  • Formula
  • Raw formula
  • Molecular weight in g.mol-1 ( gram.mole-inverse)
  • Compound's elemental mass percentage(%) analysis.
Click on Isotropic Pattern tab.

Point to the graph and the peak.

Click on the Isotropic Pattern tab.

It shows a graph of mass spectrum with a peak at Molecular weight of the compound.

Slide Number 5

Assignment

As an assignment

1. Select other Amino Acids from Templates list.

2. Obtain their Composition and Isotropic pattern.

Switch to GChemPaint window. I have opened a new GChemPaint window.
Click on Add a chain tool>> click and drag the chain to 4 carbons. Let's draw 1,3-butadiene structure.

Click on Add a chain tool.

Click and drag the chain to 4 carbons.

Click on Add a bond tool. Click on Add a bond tool and click on first and third bonds, to form double bonds.
Right click at each position to show atoms. Right click at each position to show atoms.

Click on Atom then click on Display symbol.

Click on Save the current file icon on the tool bar. To convert 1,3-butadiene 2D structure to 3D structure, click on the Save icon on the tool bar.
Save as dialog box opens. Save as dialog box opens.
Point to File type field>>select MDL Molfile Format. In the File type field, select MDL Molfile Format.
Type filename as 1,3-butadiene.

Click on Save button.

Type the filename as 1,3-butadiene.

Select Desktop to save the file on Desktop.

Then click on Save button.

Type and show 1,3-butadiene.mol and 1,3-butadiene.mdl Alternatively, you can also save the file with extension .mol or .mdl directly.

For example, type the filename as 1,3butadiene.mol or .mdl

Click on Save button.

Right click on saved file and Open With Molecules viewer. To view the structure in 3D, right click on the molecule.

Select the option Open With Molecules viewer.

This is 1,3butadiene in 3D.

Please note, we cannot make changes in the structure.

Move the mouse pointer over the structure To rotate the structure, place the cursor on the structure, hold and drag the mouse.
Slide Number 6

Assignment

As an assignment,

Convert Benzene structure from 2D to 3D.

Now let's learn to draw chemical reactions and reaction conditions.
Slide Number 7

(Show Screen shot of the reaction)

This is a chemical reaction of

Ethyl chloride (C2H5Cl) with Alcoholic Potassium hydroxide(Alc.KOH) and Aqueous Potassium hydroxide(Aq.KOH) to yield Ethene(C2H4) and Ethanol(C2H5OH) respectively.

Point to the new window. I have opened a new GChemPaint window.
Let's first draw structure of Ethyl chloride.
Click on Add a chain tool.

Click on the Display area.

Click on Add a chain tool.

Click on the Display area.

Right click on the chain to display atoms on first and second bond positions. Right click on the chain to display atoms on first and second bond positions.
Click on Current element drop down arrow button >> select Cl from table. Click on Current element drop down arrow button.

Select Cl from table.

Click on Add or modify an atom tool>>Click on the third position.

Point to the structure.

Click on Add or modify an atom tool.

Click on the third bond position.

Structure of Ethyl chloride is drawn.

Click on Add or modify a group of atoms tool >>Click on the Display area>>Type Alc.KOH >>Click type Aq.KOH. Click on Add or modify a group of atoms tool.

Click on the Display area. Type Alc.KOH.

Click again and type Aq.KOH

Click on Add an arrow for an irreversible reaction tool. Click on Add an arrow for an irreversible reaction tool.
Point to Arrow length. You can change the Arrow length using the scroller here.

I will increase the arrow length to 280.

On the Display area, beside Ethyl Chloride. Click on the Display area, beside Ethyl Chloride.
Click below Ethyl Chloride. Click below Ethyl Chloride.

Hold the mouse and rotate the arrow to point downwards.

Click on Selection tool>>Position Alc.KOH above the arrow>> Aq.KOH close to the arrow. Click on the Selection tool.

Position Alcoholic Potassium Hydroxide (Alc.KOH) above first arrow.

Position Aqueous Potassium Hydroxide (Aq.KOH) close to second arrow.

Select Alc.KOH and right click on the arrow. Select Alcoholic Potassium hydroxide(Alc.KOH).

Right click on the arrow.

A submenu opens, select Arrow and click on Attach selection to arrow. A sub-menu opens.

Select Arrow and click on Attach selection to arrow.

A dialog box with heading Arrow associated opens. A dialog box with heading Arrow associated opens.
Click on Role drop down list

Select Catalyst from the list. Click on Close.

Click on Role drop down list.

Select Catalyst from the list. Click on Close.

Drag to see Alc.KOH attaches to the arrow as a Catalyst. Drag arrow to check if Alcoholic Potassium Hydroxide (Alc.KOH) attaches to the arrow, as a catalyst.
Point to (Aq.KOH) Let's repeat the process for Aqueous Potassium Hydroxide(Aq.KOH).

Drag to see the attachement as a catalyst.

Click on Selection tool to select Ethyl chloride. Click on Selection tool to select Ethyl chloride structure.
Press CTRL + C to copy >> press CTRL+V to paste the structures. Press CTRL + C to copy and CTRL+V twice to paste the structures.
Cursor on the structures. Place the structures at proper positions by dragging.
Show the reaction slide In the reactions Ethyl chloride reacts with Alcoholic potassium Hyroxide to give Ethene.

Ethyl chloride reacts with Aqueous Potassium Hydroxide to give Ethanol.

Click on the Eraser tool, delete Cl bond. To obtain Ethene, click on Eraser tool and delete Cl bond of Ethyl chloride.

Ethane is formed.

Click on Current Element arrow. In the Tool box, ensure that Current element is Carbon.
Click on Add a bond tool>>Click on the bond. Click on Add a bond tool and click on the bond to obtain a double bond.

Ethene is formed.

Press O on the keyboard. To obtain Ethanol, press O on the keyboard.
Click on Add or modify an atom tool and then click on Cl. Click on Add or modify an atom tool and then click on Cl of Ethyl chloride.
Now let's convert the reactants and products from 2D to 3D.
Point to new GChemPaint file. Open a new file, copy Ethyl Chloride and paste it into new file.
Click on Save button >> Save as dialog box opens. Click on Save button.

Save as dialog box opens.

Type file name as Ethyl Chloride.mol Type the file name as Ethyl Chloride.mol
Click on Desktop to save your file on your Desktop>> Click on Save button. Click on Desktop to save your file on your Desktop.

Click on Save button.

Point to Ethene

Point to Ethanol Point to the files on the Desktop.

Likewise copy Ethene into a new file.

Save as Ethene.mol.

Copy Ethanol into a new file.

Save as Ethanol.mol

I have already saved the files on my Desktop.

I will minimize the current window.

And I will go to Desktop folder where I had saved my files.

Right click on the file Open with Molecules viewer. To view the compound in 3D, right click on the file, choose Open with Molecules viewer.

Likewise, I will open all the files with Molecules viewer

Observe the compounds in 3D. <Pause>

Let's summarize what we have learnt.
Slide Number 8

Summary

In this tutorial we have learnt
  • NIST WebBook page for this molecule.
  • Pub-Chem page for the molecule
  • Find molecular weight of the compound using Chemical calculator.
  • Obtain graph of mass spectrum of a molecule
  • Save the molecule in .mol format
  • Add reaction conditions and reagents on the reaction arrow
  • Add and edit a reaction
  • Convert reaction molecules into 3D structures
Slide Number 9

Assignment

AS an assignment

Draw chemical reaction of:

1)Propene (C3H6)(C3H6) and Bromine(Br-Br) molecule with Carbon tetra chloride(CCl4) as a catalyst.

2)Benzene and Chlorine(Cl-Cl) molecule with Anhydrous Aluminum Chloride(AlCl3) as a catalyst.

Your completed assignment should look like this.

Slide Number 10

Acknowledgement

Watch the video available at this URL.

http://spoken-tutorial.org/What_is_a_Spoken_ Tutorial

It summarizes the Spoken Tutorial project

If you do not have good bandwidth, you can download and watch it

Slide Number 11 The Spoken Tutorial Project Team:

Conducts workshops using spoken tutorials

Gives certificates to those who pass an on-line test

For more details, please write to

contact@spoken-tutorial.org

Slide number 12 Spoken Tutorial Project is a part of the Talk to a Teacher project

It is supported by the National Mission on Education through ICT, MHRD, Government of India

More information on this Mission is available at this link

http://spoken-tutorial.org/NMEICT-Intro]

This is Madhuri Ganapathi from IIT Bombay signing off. Thank you for joining.

Contributors and Content Editors

Madhurig, Nancyvarkey

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