Chem3D

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I have x, y, z coordinates saved in a text file. How do I open it in Chem3D?
The X, Y, Z coordinates must be in a format that Chem3D can understand. An appropriate format to put them in is the Cartesian Coordinates 2 format. For more information on setting up a cartesian coordinate file in the correct format, please see the Chem3D Help menu or manual. How do I? Chem3D All....

Laboratory Applications > Chem3D
 
 

Can Chem3D handle inorganic chemistry?
Chem3D is aimed at organic chemistry. However, you can use Chem3D to build just about anything. So if you only want to visualize, it may be fine. If you want to analyze, then that is a different story. Cambridgesoft's implementation of MM2, does not have good metal support. MOPAC has some meta....

Laboratory Applications > Chem3D
 
 

While using MacOS 9, I cannot save a Chem3D or a Table Editor document in the latest format. I can only save in the older Chem3D 3.2 format or in the stationery format.
This is a MacOS 9 specific problem. Since Chem3D/Table Editor 5.0 were released well before Mac OS9, it is apparently not fully compatible in this regard. The work around solution is: 1.Save As "Chem3D Stationery". 2.Close the document you just saved. (Click Don't Save when prompted.) 3.Click once....

Laboratory Applications > Chem3D
 
 

When I run an energy minimisation using MM2 I get an error saying that some of the parameters are missing.
Chem3D Std has limited MM2 capabilities. The Pro and Ultra version of Chem3D can guess at missing parameters. The Pro and Ultra version of Chem3D also allow you to define missing parameters. Upgrade to the latest version of Chem3D Pro or Ultra. Error message Chem3D All 6 en Display....

Laboratory Applications > Chem3D
 
 

How do I get HOMO/LUMO values on specific atoms?
The HOMO/LUMO values can be obtained in two ways. The HOMO/LUMO values can be obtained in two ways. 1. Do a MOPAC calculation in Chem3D and select Molecular Surfaces property and use the Molecular Orbitals dialogue box to get the energy levels for all the orbitals. 2. The HOMO and LUMO are printed ....

Laboratory Applications > Chem3D
 
 

Can I display Chem3D models on my web page that a visitor could rotate?
No. You might be able to create an animated GIF that shows the structure rotating, but the user would not have control over the rotation without the use of a Plugin. Product Information Chem3D All All en Display....

Laboratory Applications > Chem3D
 
 

Unable to save a Chem3D document in the latest format
While using MacOS 9, I cannot save a Chem3D document in the latest Chem3D format. This is a Mac OS 9 specific problem. Since Chem3D 5.0 was released well before MacOS 9, it is not fully compatible in this regard. The work around solution is: 1.Save As "Chem3D Stationery". 2.Close the document you j....

Laboratory Applications > Chem3D
 
 

After minimizing a structure in Chem3D, I receive a number of warnings in the messages window. How do I know which atoms the warnings correspond to?
Solution (Windows only): In the messages window, click on the bullet next to the warning. The corresponding atom in the model should become highlighted. Please note that this works for most warning messages, but not all. How do I? Chem3D Windows All en View....

Laboratory Applications > Chem3D
 
 
Results 11 - 19 - 19. ‹ Previous |

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