View source for Jmol-Application/C3/Display-Lone-Pair-of-Electrons/English


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! align=center | Visual Cue
! align=center | Narration
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|| '''Slide Number 1'''

'''Title Slide'''
|| Welcome to this Spoken Tutorial on '''Display Lone Pair of Electrons''' in '''Jmol'''.
|-
|| '''Slide Number 2'''

'''Learning Objectives'''
|| In this tutorial, we will learn to,
* Display '''lone pair''' of electrons on an atom using script commands.
|-
|| '''Slide Number 3'''

'''System Requirement'''
|| Here I am using,
* '''Ubuntu Linux '''OS version 22.04
* '''Jmol''' version 16.2.35
* '''Java '''version 11.0.25
|-
|| '''Slide Number 4'''

'''Pre-requisites'''

'''https://spoken-tutorial.org'''
|| To follow this tutorial,
* learner must be familiar with basic operations on '''Jmol''' interface.
* Spoken tutorials on '''Jmol Application''' are available at the following website.
|-
|| Cursor on '''Jmol''' interface.

Click on the '''File''' menu and select '''Get Mol''' option.

In the input box, type '''water'''.

Click '''OK'''.
|| Open the '''Jmol''' interface. 

Click on the '''File''' menu and select '''Get MOL''' option.

In the input box, type '''water''' and Click '''OK'''.
|-
|| Cursor on the panel.

Hold '''Ctrl''' and '''Alt''' keys
|| '''3D''' structure of water is seen on the panel.

Hold '''Ctrl''' and '''Alt''' keys to move the model on the screen.
|-
|| Cursor on the panel.
|| Water has two '''lone''' pairs of '''electrons''' on the '''Oxygen''' atom.

They are also referred to as an '''unshared''' pair of valence '''electrons'''.
|-
|| Cursor on the panel.
|| Using the script commands we can represent '''lone''' pair of '''electrons''' as '''tear-drop''' shaped '''lobes'''.
|-
|| Click on the '''File''' menu and select the Console option.
|| To open the '''console''' click the '''File''' menu.

Select '''Console''' option.
|-
|| Cursor on the panel.
|| '''Script console''' opens as a pop-up window.
|-
|| Cursor on the console.
|| Here we can write commands to draw the lone pair of electrons.
|-
|| At the prompt, Type the following, '''select oxygen;lcaocartoon color translucent white create lpa'''

Press '''Enter'''.
|| At the prompt, Type the command:

'''select oxygen;lcaocartoon color translucent white create lpa'''

This command will create a translucent white colored lobe on the oxygen atom.

Press '''Enter'''.
|-
|| Cursor on the panel.
|| The first '''lobe''' is seen on the oxygen atom on the panel.

You can change the color in the command according to your preference.
|-
|| Press up arrow key on the keyboard.
|| I will change the color of the '''lobes''' to yellow.

Press the up arrow key to get the previous command at the prompt. 
|-
|| '''select oxygen;lcaocartoon color yellow create lpa'''
|| Edit the command and change, '''translucent white''' to '''yellow '''and press '''Enter'''.
|-
||Press the up arrow on the keyboard.

At the end of the command line, change '''lpa '''to '''lpb'''.

Press '''Enter'''.
|| For the second '''lobe''':

Press the up arrow key on the keyboard to get the previous command at the prompt.

Edit the command. 

At the end of the command line, change '''lpa '''to '''lpb'''.

Press '''Enter'''.
|-
|| Cursor on the panel.
|| Now we can see two lobes representing two '''lone''' '''pairs''' of '''electrons''' on the panel.
|-
|| Cursor on the panel.
|| I have loaded the '''3D''' structure of '''ammonia''' using '''GetMOL'''.

To open the '''console''' click the '''File''' menu.

Select '''Console''' option.
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|| '''Cursor on the console'''

'''select nitrogen;lcaocartoon color yellow create lpa'''.

|| Here is the command line for displaying a '''lone pair''' of electrons on nitrogen in '''ammonia'''.
|-
|| '''Slide Number 5'''

'''Summary'''
|| Let us summarize. 

In this tutorial, we have learned to,
* Display '''lone pair''' of electrons on an atom using script commands.
|-
|| '''Slide Number 6'''

'''Assignment'''
|| As an assignment,
* Display a '''lone pair''' of electrons on the phosphorus atom in the phosphine model.
|-
|| '''Slide Number 7'''

'''About Spoken Tutorial Project '''
|| This video summarizes the Spoken Tutorial project. 

Please download and watch it. 
|-
|| '''Slide Number 8'''

'''Spoken tutorial workshops '''
|| We conduct workshops and give certificates. 

For more details, please contact us. 
|-
|| '''Slide Number 9'''

'''Forum '''
|| Please post your timed queries in this forum. 
|-
|| '''Slide Number 10'''

'''Acknowledgement '''
|| The''' Spoken Tutorial '''project was established at IIT Bombay by the Ministry of Education Govt of '''India.'''
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|| 
|| This tutorial is contributed by Snehalatha Kaliappan and Madhuri Ganapathi from IIT Bombay.

Thank you for joining.
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