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

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Line 7: Line 7:
 
'''Title Slide'''  
 
'''Title Slide'''  
 
||Hello everyone
 
||Hello everyone
 +
 
Welcome the tutorial on '''Formation of molecules''' in '''GChemPaint.'''
 
Welcome the tutorial on '''Formation of molecules''' in '''GChemPaint.'''
 
|-
 
|-
Line 49: Line 50:
 
|-
 
|-
 
||Point to '''Carbon''' atoms.
 
||Point to '''Carbon''' atoms.
−
||Let's replace the terminal '''Carbon''' atoms in '''Butane''' structure with '''Chlorine''' atoms.
+
||Let's replace the terminal '''Carbon''' atoms in the '''Butane''' structure with '''Chlorine''' atoms.
 
|-
 
|-
 
||Point to '''Periodic table combo''' button.
 
||Point to '''Periodic table combo''' button.
 
||For this I will use the '''Periodic table combo''' button.
 
||For this I will use the '''Periodic table combo''' button.
 
|-
 
|-
−
||Click on '''Current element''' drop-down arrow button.
+
||Click on the '''Current element''' drop-down arrow button.
  
 
Hover the mouse over the '''Periodic table'''  
 
Hover the mouse over the '''Periodic table'''  
−
||Click on '''Current element''' drop-down arrow button.
+
||Click on the '''Current element''' drop-down arrow button.
  
 
This button is known as '''Periodic table combo''' button.
 
This button is known as '''Periodic table combo''' button.
Line 63: Line 64:
 
Observe the built-in '''Modern periodic table'''.
 
Observe the built-in '''Modern periodic table'''.
 
|-
 
|-
−
||Select '''Cl''' from the table.
+
||Click on '''Cl''' from the table.
  
−
Point to the '''Cl''' on toolbox
+
Point to the '''Cl''' in toolbox
−
||Select '''Cl''' from the table.
+
||Click on '''Cl''' from the table.
  
 
Observe '''Cl''' in the tool box.
 
Observe '''Cl''' in the tool box.
Line 75: Line 76:
 
||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 the atoms to replace them with '''Cl''' atoms.
  
 
The new structure obtained is '''1,2-Dichloroethane'''.
 
The new structure obtained is '''1,2-Dichloroethane'''.
Line 83: Line 84:
 
|-
 
|-
 
||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.
 +
 
 +
Text tool's property page opens.
  
 
Click on '''Display area''' below the structure.
 
Click on '''Display area''' below the structure.
 
|-
 
|-
 
||Point to the blinking cursor
 
||Point to the blinking cursor
−
||Observe the blinking cursor enclosed in a green box.
+
||You can see the blinking cursor enclosed in a green box.
  
−
Type '''1,2-Dichloroethane''' in the box and
+
Type '''1,2-Dichloroethane''' in the box .
−
 
+
|-
−
click anywhere on the '''Display area.'''
+
||Click on "Select one or more objects" tool>>To close the text tool's property page.
 +
||Click on "Select one or more objects" tool, to close the text tool's property page.
 
|-
 
|-
 
||
 
||
Line 117: Line 121:
 
||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 the '''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.'''
+
||
−
||To save the file, Press '''CTRL+ S.'''
+
||Let's save the file now.
 +
|-
 +
||Click on '''Save the current file''' icon on the toolbar
 +
||Click on '''Save the current file''' icon on the toolbar
 
|-
 
|-
 
||'''Save as''' dialog box opens
 
||'''Save as''' dialog box opens
Line 134: Line 141:
 
|-
 
|-
 
||Click on '''Close''' to close the window.
 
||Click on '''Close''' to close the window.
−
||Click on '''Close''' to close the window.
+
||let's Click on '''Close''' to close the window.
 
|-
 
|-
 
||'''Slide Number 5'''
 
||'''Slide Number 5'''
  
 
'''Assignment'''
 
'''Assignment'''
−
||Draw ''''Ethane''' and '''Pentane''' structures.
+
||Here is an assignment
 +
 
 +
Draw ''''Ethane''' and '''Pentane''' structures.
  
 
Replace one '''Carbon''' atom of '''Ethane''' with '''Br'''.
 
Replace one '''Carbon''' atom of '''Ethane''' with '''Br'''.
Line 145: Line 154:
 
Replace the terminal '''Carbon''' atoms of '''Pentane''' with '''I'''.  
 
Replace the terminal '''Carbon''' atoms of '''Pentane''' with '''I'''.  
  
−
Your assignment's output should look like this.
+
Your completed assignment should look like this.
 
|-
 
|-
 
||
 
||
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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  include,  
  
 
'''Methyl is CH3
 
'''Methyl is CH3
Line 170: Line 179:
 
|-
 
|-
 
||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 '''Heptane''' structure as shown in the slide.
 
|-
 
|-
 
||
 
||
−
||Now I will demonstrate how to number the '''chain''' positions.
+
||Now I will demonstrate how to number the carbon '''chain''' positions.
  
 
Numbering helps to identify the '''chain''' positions.
 
Numbering helps to identify the '''chain''' positions.
Line 227: Line 236:
  
 
Select '''Atom''' and then click on '''Display symbol'''.
 
Select '''Atom''' and then click on '''Display symbol'''.
 +
 +
Likewise I will display atoms at other positions.
 
|-
 
|-
 
||
 
||
Line 233: Line 244:
 
||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 the fourth position >> 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 the fourth position.  
  
 
Click again.  
 
Click again.  
  
−
Observe the branching in '''Carbon''' chain.
+
Observe the branching in the '''Carbon''' chain.
 
|-
 
|-
 
||Point to the position.
 
||Point to the position.
−
||Let's try to click for the third time.
+
||Let's try to click for the third time.
  
 
We do not see the branching.
 
We do not see the branching.
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||To save the file, Press '''CTRL+ S.'''
 
||To save the file, Press '''CTRL+ S.'''
 
|-
 
|-
−
||In the '''Save as''' dialog box>>
+
||'''Save as''' dialog box opens>>
  
 
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,  
+
||'''Save as dialog box,''' opens.
  
 
Enter the file name as '''Alkyl groups'''.  
 
Enter the file name as '''Alkyl groups'''.  
Line 268: Line 279:
  
 
'''Summary'''
 
'''Summary'''
−
||In this tutorial we have learnt,
+
||Let's Summarize what we have learnt.
 +
 
 +
In this tutorial we have learnt to,
  
 
* Add and modify structure of compounds
 
* Add and modify structure of compounds
Line 281: Line 294:
  
 
Assignment
 
Assignment
−
||Draw '''Octane''' structure .
+
||As an assignment,
 +
 
 +
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.
Line 317: Line 332:
  
 
  ''' http://spoken-tutorial.org/NMEICT-Intro ]'''
 
  ''' http://spoken-tutorial.org/NMEICT-Intro ]'''
 +
 +
This brings us to the end of this tutorial.
  
 
Animation is done by '''Udhaya Chandrika.'''
 
Animation is done by '''Udhaya Chandrika.'''

Revision as of 13:10, 10 July 2013

Visual Cue Narration
Slide Number 1

Title Slide

Hello everyone

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 the Butane structure with Chlorine atoms.
Point to Periodic table combo button. For this I will use the Periodic table combo button.
Click on the Current element drop-down arrow button.

Hover the mouse over the Periodic table

Click on the Current element drop-down arrow button.

This button is known as Periodic table combo button.

Observe the built-in Modern periodic table.

Click on Cl from the table.

Point to the Cl in toolbox

Click on 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 the 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.

Text tool's property page opens.

Click on Display area below the structure.

Point to the blinking cursor You can see the blinking cursor enclosed in a green box.

Type 1,2-Dichloroethane in the box .

Click on "Select one or more objects" tool>>To close the text tool's property page. Click on "Select one or more objects" tool, to close the text tool's property page.
Next let's replace central Carbon atom in Propane structure with Oxygen atom.
Press Shift and O keys simultaneously>> A Sub-menu opens with O and Os Place the cursor near the central atom of the Propane structure.

Press capital O.

A Sub-menu 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 the Display area below the structures.

Point to the blinking cusor Type Dimethylether in the box.
Let's save the file now.
Click on Save the current file icon on the toolbar Click on Save the current file icon on the toolbar
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. let's Click on Close to close the window.
Slide Number 5

Assignment

Here is an assignment

Draw 'Ethane and Pentane structures.

Replace one Carbon atom of Ethane with Br.

Replace the terminal Carbon atoms of Pentane with I.

Your completed assignment 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 include,

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 Heptane structure as shown in the slide.
Now I will demonstrate how to number the carbon 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.

Likewise I will display atoms at other positions.

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 the fourth position >> Click again.

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

Click on the fourth position.

Click again.

Observe the branching in the Carbon chain.

Point to the position. 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.
Save as dialog box opens>>

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

Save as dialog box, opens.

Enter the file name as Alkyl groups.

Click on Save button. <PAUSE>

Slide Number 7

Summary

Let's Summarize what we have learnt.

In this tutorial we have learnt to,

  • Add and modify structure of compounds
  • Change current element
  • Add Alkyl groups
  • Add and modify carbon chain
Slide Number 8

Assignment

As an 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 ]

This brings us to the end of this tutorial.

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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