Difference between revisions of "GChemPaint/C2/Formation-of-molecules/English"

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Observe the built-in '''Modern periodic table.'''
 
Observe the built-in '''Modern periodic table.'''
 
|-
 
|-
−
||Select Cl from the table.
+
||Select '''Cl''' from the table.
  
−
Point to the Cl on toolbox
+
Point to the '''Cl''' on toolbox
−
||Select Cl from the table.
+
||Select '''Cl''' from the table.
  
−
Observe Cl in the tool box.
+
Observe '''Cl''' in the tool box.
 
|-
 
|-
−
||Click on Add or modify an atom tool>>click to replace
+
||Click on '''Add or modify an atom''' tool>>click to replace
  
 
Point to the structure
 
Point to the structure
−
||Click on Add or modify an atom tool.
+
||Click on '''Add or modify an atom''' tool.
  
−
Click on terminal carbon atoms to replace them with Cl atoms.
+
Click on terminal '''Carbon''' atoms to replace them with '''Cl''' atoms.
  
−
The new structure obtained is 1,2-dichloroethane.
+
The new structure obtained is '''1,2-Dichloroethane.'''
 
|-
 
|-
 
||
 
||
 
||Let's write its name below the structure.  
 
||Let's write its name below the structure.  
 
|-
 
|-
−
||Click on Add or modify a text tool>>Click on Display area  
+
||Click on '''Add or modify a text''' tool>>Click on '''Display area'''
−
||Click on Add or modify a text tool.
+
||Click on '''Add or modify a text''' tool.
  
−
Click on Display area below the structure.
+
Click on '''Display area''' below the structure.
 
|-
 
|-
 
||Point to the blinking cusor
 
||Point to the blinking cusor
  
−
Observe the blinking cursor enclosed in a green box.
+
||Observe the blinking cursor enclosed in a green box.
  
−
Type 1,2-dichloroethane in the box and click anywhere on the display area.
+
Type '''1,2-Dichloroethane''' in the box and click anywhere on the '''Display area.'''
 
|-
 
|-
 
||
 
||
−
||Next let's replace central carbon atom  in Propane structure with oxygen atom.
+
||Next let's replace central '''Carbon''' atom  in '''Propane''' structure with '''Oxygen''' atom.
 
|-
 
|-
−
||Press Shift and O keys simultaneously>> A submenu opens with O and Os  
+
||Press Shift and O keys simultaneously>> A submenu opens with '''O''' and '''Os'''
−
||Place the cursor near the central atom of the Propane structure.
+
||Place the cursor near the central atom of the '''Propane''' structure.
  
−
Press capital O.
+
Press capital '''O'''.
  
−
A submenu with O and Os  opens.
+
A '''Submenu''' with '''O''' and '''Os''' opens.
 
|-
 
|-
−
||Select O  
+
||Select '''O'''.
−
||Select O.  
+
||Select '''O'''.
  
−
Carbon and Hydrogen atoms will be replaced by Oxygen atom.  
+
'''Carbon''' and '''Hydrogen''' atoms will be replaced by '''Oxygen''' atom.  
  
−
The new structure obtained is  Dimethylether.
+
The new structure obtained is  '''Dimethylether.'''
 
|-
 
|-
 
||
 
||
 
||Let's write its name below the structure.  
 
||Let's write its name below the structure.  
 
|-
 
|-
−
||Click on Add or modify a text tool>>Click on Display area  
+
||Click on '''Add or modify a text''' tool>>Click on '''Display area'''
−
||Click on Add or modify a text tool.
+
||Click on '''Add or modify a text''' tool.
  
−
Click on Display area below the structures.
+
Click on '''Display area''' below the structures.
 
|-
 
|-
 
||Point to the blinking cusor
 
||Point to the blinking cusor
−
||Type  Dimethylether in the box.
+
||Type  '''Dimethylether''' in the box.
 
|-
 
|-
−
||Press CTRL+ S.
+
||Press '''CTRL+ S.'''
−
||To save the file, Press CTRL+ S.
+
||To save the file, Press '''CTRL+ S.'''
 
|-
 
|-
−
||Save as dialog box opens
+
||'''Save as''' dialog box opens
−
||Save as dialog box opens.
+
||'''Save as''' dialog box opens.
 
|-
 
|-
−
||Enter the file name as  chloroethane-ether >> click on Save button.
+
||Enter the file name as  '''Chloroethane-ethe'''r >> click on '''Save''' button.
−
||Enter the file name as Chloroethane-ether.
+
||Enter the file name as '''Chloroethane-ether'''.
  
−
Click on Save button.
+
Click on '''Save''' button.
 
|-
 
|-
−
||Click on Close to close the window.
+
||Click on '''Close''' to close the window.
−
||Click on Close to close the window.
+
||Click on '''Close''' to close the window.
 
|-
 
|-
 
||'''Slide Number 5'''
 
||'''Slide Number 5'''
−
'''
 
−
Assignment'''
 
−
||Draw Ethane and Pentane structures.
 
  
−
Replace one carbon atom of Ethane with Br.
+
'''Assignment'''
 +
||Draw ''''Ethane''' and '''Pentane''' structures.
  
−
Replace the terminal carbon atoms of Pentane with I.  
+
Replace one '''Carbon''' atom of '''Ethane''' with '''Br'''.
 +
 
 +
Replace the terminal '''Carbon''' atoms of '''Pentane''' with '''I'''.  
  
 
Your assignment's output should look like this.
 
Your assignment's output should look like this.
 
|-
 
|-
 
||
 
||
−
||Now I will explain about Alkyl groups.
+
||Now I will explain about '''Alkyl groups'''.
 
|-
 
|-
 
||'''Slide Number 6'''
 
||'''Slide Number 6'''
  
 
'''Alkyl groups'''
 
'''Alkyl groups'''
−
||Alkyl group is a fragment of an Alkane.
+
||'''Alkyl group''' is a fragment of an '''Alkane'''.
  
−
For example:  Methyl CH3 is a fragment of methane CH4
+
For example:  '''Methyl CH3''' is a fragment of '''Methane CH4'''
  
−
Successive members of an  Alkyl group differ by a CH2 group.
+
Successive members of an  '''Alkyl group''' differ by a''' CH2''' group.
  
−
Homologues of the Alkyl group series  includes,  
+
Homologues of the '''Alkyl group''' series  includes,  
  
−
Methyl is CH3
+
'''Methyl is CH3
  
 
Ethyl is  C2H5
 
Ethyl is  C2H5
Line 166: Line 166:
 
Propyl is C3H7  
 
Propyl is C3H7  
  
−
Butyl is  C4H9  and so on.
+
Butyl is  C4H9''' and so on.
 
|-
 
|-
−
||Switch to GchemPaint application.
+
||Switch to '''GchemPaint''' application.
−
||I have opened a new GChemPaint application with a heptane structure as shown in the slide.
+
||I have opened a new '''GChemPaint''' application with a '''Heptane''' structure as shown in the slide.
 
|-
 
|-
 
||
 
||
Line 176: Line 176:
 
Numbering helps to identify the chain positions.
 
Numbering helps to identify the chain positions.
 
|-
 
|-
−
||Click on Add or modify a text tool>> Click on Display area near the first chain position>>
+
||Click on '''Add or modify a text''' tool>> Click on '''Display area''' near the first chain position>>
  
 
Enter 1 in the green box.
 
Enter 1 in the green box.
−
||Click on Add or modify a text tool.
+
||Click on '''Add or modify a text''' tool.
  
−
Click on Display area near the first chain position.
+
Click on '''Display area''' near the first chain position.
  
 
Enter 1 in the green box.
 
Enter 1 in the green box.
Line 194: Line 194:
 
|-
 
|-
 
||
 
||
−
||Now let's branch Heptane using Alkyl groups at  various positions.
+
||Now let's branch '''Heptane''' using '''Alkyl groups''' at  various positions.
 
|-
 
|-
 
||Point to the third position.
 
||Point to the third position.
−
||Let's add a Methyl group  to the third position.
+
||Let's add a '''Methyl group''' to the third position.
 
|-
 
|-
−
||Click on Add a bond or change the multiplicity of existing one tool  >> click on the position.
+
||Click on '''Add a bond or change the multiplicity of existing one''' tool  >> click on the position.
−
||Click on Add a bond or change the multiplicity of existing one tool.
+
||Click on '''Add a bond or change the multiplicity of existing one''' tool.
  
 
Click on the position.
 
Click on the position.
Line 207: Line 207:
 
<Pause>
 
<Pause>
 
|-
 
|-
−
||Click on Add a chain tool.
+
||Click on '''Add a chain''' tool.
  
 
Click on the position.
 
Click on the position.
−
||Let's add an ethyl group on the fifth position.
+
||Let's add an''' Ethyl group''' on the fifth position.
  
−
Click on Add a chain tool.
+
Click on '''Add a chain''' tool.
  
 
Click on the position.
 
Click on the position.
Line 219: Line 219:
 
||Next I will display atoms on all positions.
 
||Next I will display atoms on all positions.
 
|-
 
|-
−
||Right click on the position>> A Submenu opens>>Select Atom>> click on  
+
||Right click on the position>> A Submenu opens>>Select '''Atom'''>> click on  
−
Display symbol.  
+
'''Display symbol'''.  
 
||Right-click on the position.
 
||Right-click on the position.
  
−
A Submenu opens  
+
A '''Submenu''' opens  
  
−
Select Atom and then click on Display symbol.
+
Select '''Atom''' and then click on '''Display symbol'''.
 
|-
 
|-
 
||
 
||
 
||Let's see how many times we can branch at one position.
 
||Let's see how many times we can branch at one position.
 
|-
 
|-
−
||Click on Add a bond or change the multiplicity of existing one tool.
+
||Click on '''Add a bond or change the multiplicity of existing one''' tool.
  
−
Click on fourth position to branch the carbon chain. Click again.  
+
Click on fourth position to branch the '''Carbon''' chain. Click again.  
−
||Click on Add a bond or change the multiplicity of existing one tool.
+
||Click on '''Add a bond or change the multiplicity of existing one''' tool.
  
−
Click on fourth position to branch the carbon chain.
+
Click on fourth position to branch the ''' Carbon''' chain.
  
 
Click again.  
 
Click again.  
  
−
Observe the branching in carbon chain.
+
Observe the branching in '''Carbon''' chain.
 
|-
 
|-
 
||Point to the poistion.
 
||Point to the poistion.
Line 249: Line 249:
 
||Note that branching is possible only twice at each position.
 
||Note that branching is possible only twice at each position.
  
−
This is because it satisfies carbon's tetra valency.
+
This is because it satisfies '''Carbon's tetra valency'''.
 
|-
 
|-
−
||Press CTRL+ S.
+
||Press '''CTRL+ S.'''
−
||To save the file, Press CTRL+ S.
+
||To save the file, Press '''CTRL+ S.'''
 
|-
 
|-
−
||In the Save as dialog box>>
+
||In the '''Save as''' dialog box>>
  
−
Enter the file name as Alkyl groups >> click on Save button.
+
Enter the file name as '''Alkyl groups''' >> click on '''Save''' button.
 
||In the Save as dialog box,  
 
||In the Save as dialog box,  
  
−
Enter the file name as Alkyl groups.  
+
Enter the file name as '''Alkyl groups'''.  
  
−
Click on Save button.
+
Click on ''' Save''' button.
 
<PAUSE>
 
<PAUSE>
 
|-
 
|-
−
||Slide Number 7
+
||'''Slide Number 7'''
−
Summary
+
 
 +
'''Summary'''
 
||In this tutorial we have learnt,
 
||In this tutorial we have learnt,
  
Line 272: Line 273:
 
* Change current element
 
* Change current element
  
−
* Add Alkyl groups
+
* Add '''Alkyl groups'''
  
 
* Add and modify carbon chain
 
* Add and modify carbon chain
Line 279: Line 280:
  
 
Assignment
 
Assignment
−
||Draw Octane structure .
+
||Draw '''Octane''' structure .
  
−
Add Propyl and Butyl groups at the fourth and fifth positions of the chain.
+
Add '''Propyl''' and '''Butyl''' groups at the fourth and fifth positions of the chain.
  
 
Your completed assignment should look like this.
 
Your completed assignment should look like this.
Line 312: Line 313:
 
Government of India
 
Government of India
  
−
More information on this Mission is available at this link  http://spoken-tutorial.org/NMEICT-Intro ]  
+
More information on this Mission is available at this link
 +
 
 +
  ''' http://spoken-tutorial.org/NMEICT-Intro ]'''
  
−
Animation is done by Udhaya Chandrika.
+
Animation is done by '''Udhaya Chandrika.'''
  
−
This is Madhuri Ganpathi from IIT Bombay signing off. Thank you for joining.
+
This is '''Madhuri Ganpathi''' from '''IIT Bombay''' signing off. Thank you for joining.
 
|-
 
|-

Revision as of 16:00, 1 July 2013

Visual Cue Narration
Slide Number 1

Title Slide

Hello every one

Welcome the tutorial on Formation of molecules in GChemPaint.

Slide Number 2

Learning Objectives

In this tutorial, we will learn to
  • Add and modify structure of compounds
  • Change current element
  • Add Alkyl groups
  • Add and modify carbon chain
Slide Number 3

System Requirement

Here I am using

Ubuntu Linux OS version. 12.04

GChemPaint version 0.12.10

Slide Number 4

Pre-requisites

To follow this tutorial you should be familiar with,

GChemPaint chemical structure editor.

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

Slide Number 5

Structures

Here is slide for the structures of Propane, Butane and Heptane.
Switch to GchemPaint application. I have opened a new GChemPaint application with Propane and Butane structures as shown in the slide
Point to carbon atoms. Let's replace the terminal Carbon atoms in Butane structure with Chlorine atoms.
Point to Periodic table combo button. For this I will use the Periodic table combo button.

Click on Current element drop-down arrow button.

Hover the mouse over the Periodic table Click on Current element drop-down arrow button.

This button is known as Periodic table combo button.

Observe the built-in Modern periodic table.

Select Cl from the table.

Point to the Cl on toolbox

Select Cl from the table.

Observe Cl in the tool box.

Click on Add or modify an atom tool>>click to replace

Point to the structure

Click on Add or modify an atom tool.

Click on terminal Carbon atoms to replace them with Cl atoms.

The new structure obtained is 1,2-Dichloroethane.

Let's write its name below the structure.
Click on Add or modify a text tool>>Click on Display area Click on Add or modify a text tool.

Click on Display area below the structure.

Point to the blinking cusor Observe the blinking cursor enclosed in a green box.

Type 1,2-Dichloroethane in the box and click anywhere on the Display area.

Next let's replace central Carbon atom in Propane structure with Oxygen atom.
Press Shift and O keys simultaneously>> A submenu opens with O and Os Place the cursor near the central atom of the Propane structure.

Press capital O.

A Submenu with O and Os opens.

Select O. Select O.

Carbon and Hydrogen atoms will be replaced by Oxygen atom.

The new structure obtained is Dimethylether.

Let's write its name below the structure.
Click on Add or modify a text tool>>Click on Display area Click on Add or modify a text tool.

Click on Display area below the structures.

Point to the blinking cusor Type Dimethylether in the box.
Press CTRL+ S. To save the file, Press CTRL+ S.
Save as dialog box opens Save as dialog box opens.
Enter the file name as Chloroethane-ether >> click on Save button. Enter the file name as Chloroethane-ether.

Click on Save button.

Click on Close to close the window. Click on Close to close the window.
Slide Number 5

Assignment

Draw 'Ethane and Pentane structures.

Replace one Carbon atom of Ethane with Br.

Replace the terminal Carbon atoms of Pentane with I.

Your assignment's output should look like this.

Now I will explain about Alkyl groups.
Slide Number 6

Alkyl groups

Alkyl group is a fragment of an Alkane.

For example: Methyl CH3 is a fragment of Methane CH4

Successive members of an Alkyl group differ by a CH2 group.

Homologues of the Alkyl group series includes,

Methyl is CH3

Ethyl is C2H5

Propyl is C3H7

Butyl is C4H9 and so on.

Switch to GchemPaint application. I have opened a new GChemPaint application with a Heptane structure as shown in the slide.
Now I will demonstrate how to number the chain positions.

Numbering helps to identify the chain positions.

Click on Add or modify a text tool>> Click on Display area near the first chain position>>

Enter 1 in the green box.

Click on Add or modify a text tool.

Click on Display area near the first chain position.

Enter 1 in the green box.

Click near the second chain position. Enter 2 in the box. Next, click near the second chain position.

Enter 2 in the box.

Point to other chain positions. Likewise I will number the other chain positions as 3, 4, 5, 6 and 7.
Now let's branch Heptane using Alkyl groups at various positions.
Point to the third position. Let's add a Methyl group to the third position.
Click on Add a bond or change the multiplicity of existing one tool >> click on the position. Click on Add a bond or change the multiplicity of existing one tool.

Click on the position.

Observe the change in the atoms. <Pause>

Click on Add a chain tool.

Click on the position.

Let's add an Ethyl group on the fifth position.

Click on Add a chain tool.

Click on the position.

Next I will display atoms on all positions.
Right click on the position>> A Submenu opens>>Select Atom>> click on

Display symbol.

Right-click on the position.

A Submenu opens

Select Atom and then click on Display symbol.

Let's see how many times we can branch at one position.
Click on Add a bond or change the multiplicity of existing one tool.

Click on fourth position to branch the Carbon chain. Click again.

Click on Add a bond or change the multiplicity of existing one tool.

Click on fourth position to branch the Carbon chain.

Click again.

Observe the branching in Carbon chain.

Point to the poistion. Let's try to click for the third time.

We do not see the branching.

Note that branching is possible only twice at each position.

This is because it satisfies Carbon's tetra valency.

Press CTRL+ S. To save the file, Press CTRL+ S.
In the Save as dialog box>>

Enter the file name as Alkyl groups >> click on Save button.

In the Save as dialog box,

Enter the file name as Alkyl groups.

Click on Save button. <PAUSE>

Slide Number 7

Summary

In this tutorial we have learnt,
  • Add and modify structure of compounds
  • Change current element
  • Add Alkyl groups
  • Add and modify carbon chain
Slide Number 8

Assignment

Draw Octane structure .

Add Propyl and Butyl groups at the fourth and fifth positions of the chain.

Your completed assignment should look like this.

Slide Number 9

Acknowledgement

Watch the video available at this URL.

http://spoken-tutorial.org/What_is_a_Spoken_Tutorial

It summarises the Spoken Tutorial project

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

Slide Number 10 The Spoken Tutorial Project Team:

Conducts workshops using spoken tutorials

Gives certificates to those who pass an online test

For more details, please write to

contact@spoken-tutorial.org

Slide number 11 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 ]

Animation is done by Udhaya Chandrika.

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

Contributors and Content Editors

Madhurig

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