Difference between revisions of "Avogadro/C2/Edit-molecules/English-timed"
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|| 00:08 | || 00:08 | ||
| − | || In this tutorial, we will learn to- | + | || In this tutorial, we will learn to- add and delete atoms, |
|- | |- | ||
|| 00:14 | || 00:14 | ||
| − | || | + | ||add and delete '''bond'''s, |
|- | |- | ||
|| 00:16 | || 00:16 | ||
| − | || | + | ||rotate bonds, |
|- | |- | ||
|| 00:18 | || 00:18 | ||
| − | || | + | ||change length of the bond, |
|- | |- | ||
|| 00:20 | || 00:20 | ||
| − | || | + | ||change hydrogen to methyl group, |
|- | |- | ||
|| 00:23 | || 00:23 | ||
| − | || | + | ||'''copy, paste''' and join structures. |
|- | |- | ||
||00:27 | ||00:27 | ||
| − | || Here I am using | + | || Here I am using: |
| − | '''Ubuntu Linux''' OS version. 14.04 | + | '''Ubuntu Linux''' OS version. 14.04, |
'''Avogadro''' version 1.1.1. | '''Avogadro''' version 1.1.1. | ||
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|| 00:55 | || 00:55 | ||
| − | || To open the terminal press '''CTRL, ALT''' and '''T '''keys simultaneously. | + | || To open the '''terminal''', press '''CTRL, ALT''' and '''T '''keys simultaneously. |
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|| 01:03 | || 01:03 | ||
| − | || Type '''avogadro '''at the prompt and press | + | || Type '''avogadro '''at the '''prompt''' and press '''Enter'''. |
|- | |- | ||
|| 01:08 | || 01:08 | ||
| − | ||'''Avogadro''' application window opens. | + | ||'''Avogadro''' '''application window''' opens. |
|- | |- | ||
|| 01:12 | || 01:12 | ||
| − | || For demonstration, I will display a molecule of '''n-butane''' from the '''Fragment''' library. | + | || For demonstration, I will display a molecule of '''n-butane''' from the '''Fragment''' '''library'''. |
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|| 01:29 | || 01:29 | ||
| − | || From the list of | + | || From the list of '''fragment'''s, double click on '''alkanes''' folder to open. |
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|| 01:49 | || 01:49 | ||
| − | || '''Butane''' molecule highlighted in blue color appears on the '''Panel'''. | + | || '''Butane''' molecule, highlighted in blue color, appears on the '''Panel'''. |
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|| 02:14 | || 02:14 | ||
| − | || Click on '''Draw tool''' icon on the tool bar. | + | || Click on '''Draw tool''' icon on the '''tool bar'''. |
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|| 02:32 | || 02:32 | ||
| − | ||Similarly, you can add atoms using '''Draw tool''' to make a series of | + | ||Similarly, you can add atoms using '''Draw tool''' to make a series of '''alkane'''s. |
|- | |- | ||
|| 02:39 | || 02:39 | ||
| − | || Open a new window. Draw propane using '''Draw tool.''' | + | || Open a new window. Draw '''propane''' using '''Draw tool.''' |
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|| 03:02 | || 03:02 | ||
| − | ||Selected atoms | + | ||Selected atoms appear blue in color. |
|- | |- | ||
|| 03:06 | || 03:06 | ||
| − | || Press '''Backspace''' to delete. Alternatively you can use clear option in '''Edit''' menu. | + | || Press '''Backspace''' to delete. Alternatively, you can use clear option in '''Edit''' menu. |
|- | |- | ||
|| 03:14 | || 03:14 | ||
| − | ||To redo, press '''Ctrl and Z | + | ||To '''redo''', press '''Ctrl''' and '''Z''' keys simultaneously. |
|- | |- | ||
|| 03:20 | || 03:20 | ||
| − | || We will demonstrate on how to add and delete | + | || We will demonstrate on how to add and delete '''bond'''s in a molecule. |
|- | |- | ||
|| 03:26 | || 03:26 | ||
| − | || To add bonds select the '''Draw tool''' icon on the tool bar. | + | || To add bonds, select the '''Draw tool''' icon on the tool bar. |
|- | |- | ||
|| 03:31 | || 03:31 | ||
| − | ||'''Draw Settings''' menu | + | ||'''Draw Settings''' menu opens on the left. |
|- | |- | ||
|| 03:35 | || 03:35 | ||
| − | || By default '''Carbon''' is selected in the '''Element '''drop down list. | + | || By default, '''Carbon''' is selected in the '''Element '''drop down list. |
|- | |- | ||
|| 03:40 | || 03:40 | ||
| − | ||To introduce a double bond select '''Double''' from '''Bond Order '''drop down. | + | ||To introduce a double bond, select '''Double''' from '''Bond Order '''drop down. |
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|| 03:59 | || 03:59 | ||
| − | || To delete bonds, hold the right mouse button and click on the bonds. | + | || To delete bonds, hold the right '''mouse button''' and click on the bonds. |
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|| 05:21 | || 05:21 | ||
| − | || To change length of the bond hold the right mouse button and drag. | + | || To change length of the bond, hold the right '''mouse button''' and drag. |
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|| 05:38 | || 05:38 | ||
| − | || All | + | || All Hydrogens are now replaced by '''Methyl''' groups. |
|- | |- | ||
|| 05:43 | || 05:43 | ||
| − | ||Press '''CTRL''' and ''' Z | + | ||Press '''CTRL''' and ''' Z''' keys simultaneously to '''undo''' the changes. |
|- | |- | ||
||05:49 | ||05:49 | ||
| − | || We can also select a particular | + | || We can also select a particular hydrogen atom and change it to a '''methyl''' group. |
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|| 05:59 | || 05:59 | ||
| − | || Click on the | + | || Click on the hydrogen attached to end carbon atom to select. |
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|| 06:22 | || 06:22 | ||
| − | || Let us take a look as how to copy, paste and join structures. | + | || Let us take a look as how to '''copy, paste''' and join structures. |
|- | |- | ||
|| 06:28 | || 06:28 | ||
| − | || Click on '''File'''-> '''New''' to open a new window. | + | || Click on '''File'''-> '''New''' to open a new '''window'''. |
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|| 07:16 | || 07:16 | ||
| − | || '''beta-D-glucopyranose.cml''' appears on panel highlighted in blue color. | + | || '''beta-D-glucopyranose.cml''' appears on '''panel''' highlighted in blue color. |
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|| 07:24 | || 07:24 | ||
| − | ||Translate it to the center using hand tool. | + | ||'''Translate''' it to the center, using hand tool. |
|- | |- | ||
|| 07:28 | || 07:28 | ||
| − | || Let us copy and paste another '''glucose''' molecule. | + | || Let us '''copy''' and '''paste''' another '''glucose''' molecule. |
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|| 07:36 | || 07:36 | ||
| − | || And click on '''Copy'''.Again Scroll down the edit menu and then click '''Paste'''. | + | || And click on '''Copy'''. Again Scroll down the edit menu and then click '''Paste'''. |
|- | |- | ||
|| 07:44 | || 07:44 | ||
| − | || Please note during copy, paste operation, window dims for a moment and then recovers. | + | || Please note: during copy, paste operation, window dims for a moment and then recovers. |
|- | |- | ||
|| 07:51 | || 07:51 | ||
| − | || A new molecule gets copied and pasted on the existing molecule on the Panel. | + | || A new molecule gets copied and pasted on the existing molecule on the '''Panel'''. |
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|| 08:06 | || 08:06 | ||
| − | ||Now we have two separate molecules on the Panel | + | ||Now we have two separate molecules on the Panel. |
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|| 08:17 | || 08:17 | ||
| − | || Let us label the molecules.Labeling helps to identify the positions of all the atoms. | + | || Let us label the molecules. Labeling helps to identify the positions of all the atoms. |
|- | |- | ||
|| 08:25 | || 08:25 | ||
| − | || To label, | + | || To label, click on '''Label''' check box from the''' Display Types''' drop down. |
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|| 08:32 | || 08:32 | ||
| − | || To get '''Maltose''' we need to remove a water molecule. | + | || To get '''Maltose''', we need to remove a water molecule. |
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|| 08:37 | || 08:37 | ||
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|| 09:27 | || 09:27 | ||
| − | || The optimization may take a few seconds to complete. You may remove the labels now | + | || The optimization may take a few seconds to complete. You may remove the labels now. |
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|| 09:40 | || 09:40 | ||
| − | || Let's summarize. In this tutorial we have learnt to: | + | || Let's summarize. In this tutorial, we have learnt to: add and delete atoms, |
|- | |- | ||
|| 09:47 | || 09:47 | ||
| − | || | + | ||add and delete bonds, |
|- | |- | ||
|| 09:50 | || 09:50 | ||
| − | || | + | ||rotate bonds, |
|- | |- | ||
|| 09:52 | || 09:52 | ||
| − | || | + | ||change bond length, |
|- | |- | ||
|| 09:54 | || 09:54 | ||
| − | || | + | ||change Hydrogen to Methyl group, |
|- | |- | ||
|| 09:56 | || 09:56 | ||
| − | || | + | ||copy, paste and join structures. |
|- | |- | ||
|| 10:00 | || 10:00 | ||
| − | || As an assignment, | + | || As an assignment, create a '''Butane''' molecule using draw tool. |
|- | |- | ||
|| 10:06 | || 10:06 | ||
| − | ||Convert it into '''2,3 dimethyl Butane''' | + | ||Convert it into '''2,3 dimethyl Butane'''. |
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|| 10:22 | || 10:22 | ||
| − | ||Optimize the geometry using UFF force field. | + | ||Optimize the geometry using '''UFF force field'''. |
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|| 10:27 | || 10:27 | ||
| − | || This video summarises the Spoken Tutorial project | + | || This video summarises the '''Spoken Tutorial''' project. If you do not have good '''bandwidth''', you can download and watch it. |
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|| 10:44 | || 10:44 | ||
| − | || The Spoken Tutorial Project is funded by '''NMEICT, MHRD''' '''Government of '''India | + | || The Spoken Tutorial Project is funded by '''NMEICT, MHRD''' '''Government of '''India. |
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|| 10:52 | || 10:52 | ||
Revision as of 14:41, 5 June 2018
| Time | Narration |
| 00:01 | Warm greetings everyone. Welcome to this tutorial on Edit molecules. |
| 00:08 | In this tutorial, we will learn to- add and delete atoms, |
| 00:14 | add and delete bonds, |
| 00:16 | rotate bonds, |
| 00:18 | change length of the bond, |
| 00:20 | change hydrogen to methyl group, |
| 00:23 | copy, paste and join structures. |
| 00:27 | Here I am using:
Ubuntu Linux OS version. 14.04, Avogadro version 1.1.1. |
| 00:37 | To follow this tutorial, you should be familiar with: Avogadro interface. |
| 00:43 | If not, for relevant tutorials, please visit our website. |
| 00:49 | Here I will show how to open Avogadro using the Terminal. |
| 00:55 | To open the terminal, press CTRL, ALT and T keys simultaneously. |
| 01:03 | Type avogadro at the prompt and press Enter. |
| 01:08 | Avogadro application window opens. |
| 01:12 | For demonstration, I will display a molecule of n-butane from the Fragment library. |
| 01:19 | Click on Build menu. Navigate to Insert->Fragment |
| 01:25 | Insert fragment dialog box appears. |
| 01:29 | From the list of fragments, double click on alkanes folder to open. |
| 01:35 | Select butane.cml from the drop down that appears. |
| 01:41 | Click on Insert button. Click on X to close Insert Fragment dialog box. |
| 01:49 | Butane molecule, highlighted in blue color, appears on the Panel. |
| 01:54 | To remove the highlighting, Press Ctrl, Shift and A keys simultaneously. |
| 02:02 | Rotate the structure using Navigation tool to get proper alignment. |
| 02:09 | We will now learn how to add atoms to the molecule. |
| 02:14 | Click on Draw tool icon on the tool bar. |
| 02:18 | Click on end Carbon atom and drag on the Panel. |
| 02:23 | A carbon atom with required hydrogens get added. |
| 02:27 | We now have a molecule of pentane on Panel. |
| 02:32 | Similarly, you can add atoms using Draw tool to make a series of alkanes. |
| 02:39 | Open a new window. Draw propane using Draw tool. |
| 02:45 | Let us delete the end Carbon atom with hydrogens to get a molecule of Ethane. |
| 02:52 | To delete atoms, click on the Selection tool icon on the tool bar. |
| 02:57 | Click and drag over the end Carbon atom to make the selection. |
| 03:02 | Selected atoms appear blue in color. |
| 03:06 | Press Backspace to delete. Alternatively, you can use clear option in Edit menu. |
| 03:14 | To redo, press Ctrl and Z keys simultaneously. |
| 03:20 | We will demonstrate on how to add and delete bonds in a molecule. |
| 03:26 | To add bonds, select the Draw tool icon on the tool bar. |
| 03:31 | Draw Settings menu opens on the left. |
| 03:35 | By default, Carbon is selected in the Element drop down list. |
| 03:40 | To introduce a double bond, select Double from Bond Order drop down. |
| 03:46 | Click on the bond between C-1 and C-2 to convert it to a double bond. |
| 03:52 | To convert double bond into a triple bond, select Triple from Bond Order.
Click on the bond. |
| 03:59 | To delete bonds, hold the right mouse button and click on the bonds. |
| 04:04 | This results in two different molecules. |
| 04:08 | Let's rejoin the molecules. |
| 04:11 | Click on Carbon of one molecule, drag and click on carbon of other molecule. |
| 04:18 | We can rotate bonds and change bond lengths using Bond Centric Manipulation tool. |
| 04:24 | Click on Bond Centric Manipulation tool on the tool bar. |
| 04:29 | Bond Centric Manipulate settings menu opens on the left. |
| 04:34 | By default, Show Angles and Snap-to Bonds are checked. |
| 04:39 | Snap-to Threshold set to 100(10 degree). |
| 04:43 | Users can make their own choice of settings as per the requirements. |
| 04:49 | To show angles, click on the bond between two atoms. |
| 04:55 | We need to fix the plane of rotation of the bonds. |
| 04:59 | To fix the plane you want, click on the bond and move upwards or downwards. |
| 05:05 | The plane between the atoms appears in blue or yellow color. |
| 05:11 | To Rotate, click on one of the atoms and move. |
| 05:16 | Attached bond along with the atoms rotates in the fixed plane. |
| 05:21 | To change length of the bond, hold the right mouse button and drag. |
| 05:27 | Now we will show how to change Hydrogens to methyl groups. |
| 05:32 | Click on Build menu and click on Change H To Methyl. |
| 05:38 | All Hydrogens are now replaced by Methyl groups. |
| 05:43 | Press CTRL and Z keys simultaneously to undo the changes. |
| 05:49 | We can also select a particular hydrogen atom and change it to a methyl group. |
| 05:55 | Click on Selection tool icon on the tool bar |
| 05:59 | Click on the hydrogen attached to end carbon atom to select. |
| 06:04 | Go to Build menu and click on Change H to Methyl. |
| 06:10 | The selected Hydrogen gets replaced by methyl group. |
| 06:15 | To deselect, Press Ctrl, Shift and A keys simultaneously. |
| 06:22 | Let us take a look as how to copy, paste and join structures. |
| 06:28 | Click on File-> New to open a new window. |
| 06:33 | We will learn to build a Maltose molecule. |
| 06:37 | Maltose is made up of two glucose molecules. |
| 06:41 | To insert a glucose molecule, click on Build menu. |
| 06:46 | Scroll down and click on Insert -> Fragment |
| 06:51 | Insert -> Fragment dialog box appears. |
| 06:55 | Scroll down the list and click on Cyclic sugar folders. |
| 07:01 | A sub menu appears. |
| 07:04 | Navigate down and select beta-d-glucopyranose.cml. |
| 07:10 | Click on Insert button. Close the dialog box. |
| 07:16 | beta-D-glucopyranose.cml appears on panel highlighted in blue color. |
| 07:24 | Translate it to the center, using hand tool. |
| 07:28 | Let us copy and paste another glucose molecule. |
| 07:33 | Click on Edit menu on the menu bar. |
| 07:36 | And click on Copy. Again Scroll down the edit menu and then click Paste. |
| 07:44 | Please note: during copy, paste operation, window dims for a moment and then recovers. |
| 07:51 | A new molecule gets copied and pasted on the existing molecule on the Panel. |
| 07:58 | The cursor changes to a hand tool. |
| 08:01 | Move the copied molecule from the original molecule. |
| 08:06 | Now we have two separate molecules on the Panel. |
| 08:10 | To de-select Press Ctrl, Shift and A keys simultaneously. |
| 08:17 | Let us label the molecules. Labeling helps to identify the positions of all the atoms. |
| 08:25 | To label, click on Label check box from the Display Types drop down. |
| 08:32 | To get Maltose, we need to remove a water molecule. |
| 08:37 | Delete the OH group on C-1 of first molecule and hydrogen on C-9 of second molecule. |
| 08:46 | Select Carbon in Draw tool settings. |
| 08:50 | Select Single as Bond Order. |
| 08:54 | Uncheck Adjust Hydrogens check box. |
| 08:58 | Click and drag to join C-1 of first molecule and C-9 of second molecule through oxygen atom. |
| 09:07 | We need to optimize the geometry. |
| 09:11 | Select Auto Optimization tool. |
| 09:15 | Auto Optimization settings menu appears on the left. |
| 09:20 | Select MMFF94 force field and click on Start. |
| 09:27 | The optimization may take a few seconds to complete. You may remove the labels now. |
| 09:35 | We now have an optimized structure of Maltose on Panel. |
| 09:40 | Let's summarize. In this tutorial, we have learnt to: add and delete atoms, |
| 09:47 | add and delete bonds, |
| 09:50 | rotate bonds, |
| 09:52 | change bond length, |
| 09:54 | change Hydrogen to Methyl group, |
| 09:56 | copy, paste and join structures. |
| 10:00 | As an assignment, create a Butane molecule using draw tool. |
| 10:06 | Convert it into 2,3 dimethyl Butane. |
| 10:10 | Rotate the bonds and change bond lengths. |
| 10:14 | Create a molecule of cellulose (Hint: D- glucose monomer is available in the Insert fragment library) |
| 10:22 | Optimize the geometry using UFF force field. |
| 10:27 | This video summarises the Spoken Tutorial project. If you do not have good bandwidth, you can download and watch it. |
| 10:36 | We conduct workshops using Spoken Tutorials and give certificates. Please contact us. |
| 10:44 | The Spoken Tutorial Project is funded by NMEICT, MHRD Government of India. |
| 10:52 | This tutorial is contributed by Viswa Janani Vasudhevan and Madhuri Ganapathi.
Thank you for joining. |