GChemPaint/C2/Introduction-to-GChemPaint/English-timed

Time	Narration
00:01	Hello everyone. Welcome to the tutorial on Introduction to GChemPaint.
00:07	In this tutorial, we will learn:
00:11	About GChemPaint
00:13	Uses and Benefits
00:16	Installation Open a new file
00:20	Menubar, Toolbar and Status bar.
00:25	We will also learn about:
00:28	Display area
00:30	Document properties
00:32	Using tool box and
00:34	Saving the drawing with extension .gchempaint.
00:40	Here I am using
00:42	Ubuntu Linux OS version. 12.04,
00:47	GChemPaint version 0.12.10.
00:53	To follow this tutorial you should have knowledge of,
00:59	basics of Chemistry upto VIII standard.
01:04	GChemPaint can be very easily installed using Ubuntu Software Center.
01:12	For more information on Ubuntu software Center,
01:16	please refer to Ubuntu Linux Tutorials on our website.
01:23	What is GChemPaint?
01:26	GChemPaint is a two dimensional chemical structure editor.
01:32	It has a multiple document interface.
01:37	GChemPaint allows you to,
01:40	Draw and display two dimensional chemical structures.
01:46	Drag and drop of templates
01:50	Change length, angle and width of the bonds
01:55	Use Chemical Calculator to calculate molecular weight of compounds.
02:03	GChemPaint helps in:
02:05	Easy visualization of chemical structures
02:11	Converting two dimensional structures to three dimensional structures
02:17	Magnification of structures
02:21	Automatic and manual assignment of atoms.
02:26	Let's first see how to open a new GChemPaint application.
02:33	Click on Dash home >> Search bar appears >> In the Search bar type GChemPaint.
02:41	Click on the GChemPaint icon.
02:46	We can also open GChemPaint application from Terminal.
02:52	Press Ctrl, Alt and T keys simultaneously, to open the Terminal.
02:58	Type GChemPaint and press Enter.
03:04	GChemPaint application opens.
03:08	A typical GChemPaint window looks like this.
03:13	This is the Menu-bar.
03:15	GChempaint has a standard menu-bar like other window based applications.
03:22	Menu bar contain menu items like File, Edit, View, Tools, Windows and Help options.
03:34	Toolbar contains most frequently used commands as icons.
03:41	There are icons to open a New file,
03:45	Open existing file,
03:48	Save a file and Print a file.
03:53	This is the Display area.
03:56	Display area shows the structures and the contents of the file that we draw and edit.
04:06	We can drag and drop tools from toolbox into the Display area.
04:14	Status-bar displays information about current GChemPaint activity.
04:20	It also displays contextual information about menu items.
04:28	Now I will explain about Document Properties.
04:33	To open Document Properties window,
04:37	click on File menu.
04:39	Navigate to Properties and click on it.
04:43	Document Properties window opens.
04:47	I will drag the Document Properties window to maximize it.
04:53	Document properties window has the following fields.
04:59	Title- Let's type the title of the document as “Propane”.
05:06	Author's Name- let's type author's name as Madhuri.
05:14	Email– Let's leave it blank.
05:17	History – This field shows the Creation date of the document.
05:23	It also shows the Revision date of the document.
05:28	This means, it also shows the next edited date of the document.
05:35	Theme- let's leave this field as GChemPaint.
05:39	Comments- In the Comments field, we can add text related to the document.
05:46	Let's enter name of the compound and its formula.
05:51	Propane CH3-CH2-CH3
06:01	Let's click on Close button to close the window.
06:05	Next let's learn about Toolbox.
06:09	Toolbox contains buttons for different tools.
06:14	Toolbox is displayed along with the active document window.
06:20	Let's now draw structures using Toolbox buttons.
06:25	Let's first draw the structure of propane.
06:30	Propane is CH3-CH2-CH3
06:36	Let's use Add a Chain tool from Tool box to draw a Carbon chain.
06:42	Click on Add a Chain tool,
06:45	and then click on Display area.
06:48	A Carbon chain is drawn on the Display area.
06:53	To change the orientation of the chain,
06:57	click on Add a Chain tool.
07:00	In the Display area, click and hold the left mouse button to orient the chain.
07:07	Do not release the left mouse button until the direction of the chain is fixed.
07:15	Release the left mouse button after fixing the direction.
07:20	We see that carbon chain is drawn.
07:24	Note, once we click on the Display area, the chain length and orientation of the chain are fixed.
07:33	Let's now display atoms at each position on the chain.
07:39	Here we have 3 positions to display atoms.
07:43	Right click on the first position,
07:47	a Sub-menu opens.
07:49	Select Atom and then click on Display symbol, to display atoms at that position.
07:59	Like wise, let's display atoms on all positions.
08:04	Right click Select Atom.
08:07	click on Display symbol.
08:12	Here the structure of “Propane” is drawn.
08:17	Let's next draw a pentane structure on the same window.
08:23	Click on Add a Chain tool,
08:26	then click on Display area.
08:29	To increase the chain length, hold the left mouse button and drag the cursor.
08:36	Change orientation in the desired direction and release the left mouse button.
08:43	Let's display atoms on all positions.
08:47	Here we have 5 positions to display atoms.
08:52	To display atoms on the first position, right click. A sub-menu opens.
08:58	Select Atoms and then click on Display symbol.
09:03	Like wise let's display atoms on all positions.
09:17	Here the structure of pentane is drawn.
09:21	Let's now save the file.
09:24	click on File Menu select Save as .
09:27	Save As dialog box opens.
09:30	For File type, click on the drop down arrow.
09:35	Various save formats are seen.
09:39	Select 2D Chemical structure.
09:43	Type the file name as propane.gchempaint,
09:52	and click on Save button.
09:55	File is saved with .gchempaint extension.
10:00	With this, we come to the end of this tutorial.
10:04	Let's summarize.
10:06	In this tutorial we have learnt,
10:09	About GChemPaint Uses and Benefits
10:12	Installation
10:14	Open a new file
10:16	Menu-bar, Toolbar and Status bar
10:20	We have also learnt about:
10:23	Display area
10:25	Document Properties, Using tool box and
10:28	Save the drawing with extension .gchempaint
10:33	As an assignment I would like you to:
10:36	1. Draw structures of n-hexane and n-octane
10:41	2. Change the orientation
10:43	3. Display atoms on each position
10:47	Output of the assignment should look like this.
10:53	Watch the video available at this URL:
10:57	It summarizes the Spoken Tutorial project.
11:00	If you do not have good bandwidth, you can download and watch it.
11:05	The Spoken Tutorial Project Team:
11:07	Conducts workshops using spoken tutorials
11:10	Gives certificates to those who pass an online test.
11:14	For more details, please write to contact@spoken-tutorial.org.
11:21	Spoken Tutorial Project is a part of the Talk to a Teacher project.
11:26	It is supported by the National Mission on Education through ICT, MHRD, Government of India.
11:34	More information on this Mission is available at this link.
11:40	This is Madhuri Ganpathi from IIT Bombay signing off. Thank you for joining.

Contributors and Content Editors

PoojaMoolya, Pratik kamble, Ranjana, Sandhya.np14