GChemPaint/C2/Edit-Preferences-Templates-and-Residues/English

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Press CTRL +A to select all objects>> Go to Edit menu, click on Clear.
Visual Cue Narration
Slide Number 1

Title Slide

Hello everyone.

Welcome the tutorial on Edit Preferences, Templates and Residues in GChemPaint.

Slide Number 2

Learning Objectives

In this tutorial, we will learn to

  • Edit Preferences
  • Manage Templates
  • Select and use ready Templates and
  • Add a New Template

We will also learn

  • The uses of Residues and
  • To edit Residues.
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.

Switch to GchemPaint application. I have opened a new GChemPaint application.
Let's begin the tutorial by editing Preferences.
Go to Edit menu>> navigate to Preferences>> click on it. Go to Edit menu, navigate to Preferences and click on it.

GChemPaint Preferences window opens.

Point to the field The first field, Default Compression Level For GChemPaint Files, is used when saving files.

By default, it is zero.

If not zero, the file will be compressed using gzip.
Point to Invert wedge hashes. I will cover Invert wedge hashes in an another tutorial.
Point to Default Theme >> then click on the drop-down to show the options In GchemPaint, each document has an associated theme.

Let's retain the Default Theme as GChemPaint.

Point to Bonds and Arrows Now, I will explain about Arrows in detail, under the Themes section.
Point to the arrows Observe the different types of arrows on the tool box
  • Add an arrow for an irreversible reaction
  • Add a pair of Arrows for a reversible reaction.
  • Add an arrow for retrosynthetic step
  • Add a double headed arrow to represent mesomery

Let's add these 4 arrows to the Display area.

Click on>> Add an arrow for an irreversible reaction tool >> click on display area. Click on Add an arrow for an irreversible reaction tool,

Then click on Display area.

Add arrows to Display area Likewise I will add other types of arrows to the Display area.
Click on Select one or more objects tool Then click on Select one or more objects tool in the tool box.
Select Arrows from Themes >>A contextual menu opens Select Arrows from Themes field in the Preferences dialog box.

A contextual menu opens.

Point the fields Here we can increase or decrease Length, Width and Distance of the arrows.
Click on up or down arrow triangles Click on up or down arrow triangles with the mouse.

Observe the changes on the arrows in the Display area.

Next let's learn about Arrow heads.

The default values of A,B and C are displaced here.
Point to the Arrows heads parameters A, B and C. The A, B and C parameters help to vary the shape of the arrow heads.
Increase and then decrease A, B and C. Increase or decrease each one and observe the changes in the arrow heads.

Click on Close button to close the window

Let's clear the Display area.

Press CTRL +A to select all objects. Go to Edit menu, click on Clear.

Next, let's learn how to manage Templates.
Click on Use or manage templates tool. Click on Use or manage templates tool.

The property dialog box opens below.

Point to Templates.

Property dialog box contains Templates with a drop down list.

Point to the list. List contains Amino acids, Aromatic hydrocarbons, Nucleic bases, Nucleosides and Saccharides.
Point to the Submenu Each item has a Submenu.
Select Aromatic Hydrocarbons >>click on Benzene from the Submenu.

Let's select Aromatic Hydrocarbons and click on Benzene from the Submenu.

Point to Benzene structure Benzene structure is displayed on the property page.
Drag and drop Benzene structure to the Display area. Now let's click on the Display area.
Select and click Naphtalene structure Likewise let's select Naphtalene structure and click on the Display area.
Slide Number 5

Assignment

Select and place other structures on the Display area, on your own.
Press CTRL +Z Let's undo the changes.

Press CTRL +Z to undo.

Let's now learn to add a New template to the existing Template list.
Click on Open a file icon from toolbar

Click on Open a file icon from the toolbar.

A window with files and folders opens.

select “Hexane” >>

click on Open button.

Select the file named “Hexane” from the list.

Then, click on the Open button.

Click on Add button>>New template property page opens. Click on Add button.

New template property page opens.

Property page has two fields – Name and Category.
Point to the drop down list. Category field has a drop down list.

We can select from the list or add our own category.

Add a new Category, Hydrocarbons. Let's add a new Category, by typing Hydrocarbons in the text field.
In the Name field type the name of the compound as “Hexane”. In the Name field, enter the name of the compound as “Hexane”.
Click on Hexane structure. Click on the Hexane structure on the Display area.

Click on Ok button.

It will be displayed on the New template property page.

Click on Ok button.

Click on Templates drop-down. Now, click on Templates drop-down.

Observe that Hexane structure is added to the Templates list.

Slide Number 6

Assignment

Add Octane structure to Hydrocarbons category, on your own.
Click on Close button to close the file Let's close the “hexane” file.

Go to File menu, select Close to close the file.

Click on Select one or more objects tool >> Close Templates property page. Click on Select one or more objects tool to close the Templates property page.
Next, let's learn about Residues.
Slide Number 7

Uses of Residues

Residues are used to,
  • Find the nature of functional group attached to carbon chain.
  • Know the structure of functional group.
  • Add a new functional group to the database.
Go to Tools menu>>Click on Edit residues. Go to Tools menu and click on Edit residues.

Residues window opens.

Point to the buttons It has three buttons - New, Save, Delete.
Point to the list New button has a drop down list.

Click on it.

Select n-Pr for propyl

Point to the Identity tab

Select n-Pr for propyl.

The Identity tab shows Symbol and Name of the selected residue.

Point to the Formula tab Formula tab shows the skeletal structure of the selected residue.
Point to Symbol, Name and skeletal structure Likewise, let's select s-Bu for Secondary Butyl.

Observe the Symbol, Name and skeletal structure of the residue.

Let's now add a new residue - Hydroxy group.
To add a New residue , click on New To add a new residue, click on New button.
In the Symbol field type O-H.

Name it as Hydroxy.

In the Symbol field type O-H.

Name it as Hydroxy.

Click on Formula tab. Click on Formula tab.

You will see a bulleted bond.

Place the cursor near the bond >> press capital O.

Point to Submenu.

Place the cursor near the bond and press capital O.

A Submenu with O and Os opens.

Select O

Click on Save button. Select O

O-H group attaches to the bond.

Click on Save button.

Click on the list .

Now, click on the first button to view the list. Observe that O-H residue is now added to the list.

With this we come to the end of this tutorial.

Let's summarise

Side Number 8

Summary

In this tutorial, we have learnt to
  • Edit Preferences
  • Manage Templates
  • Select and use ready Templates and
  • Add a New Template

We will also learn

  • The uses of Residues and
  • To edit Residues.
Slide Number 9

Assignment

As a assignment
  • Select and use Saccharides from Templates list.
  • Explore other residues.
Slide Number 10

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 11 The Spoken Tutorial Project Team:

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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 Ganpathi from IIT Bombay signing off. Thank you for joining.

Contributors and Content Editors

Madhurig