| Q: |
It is possible to get ChemSketch to show the aromaticity for
cyclopentadienyl anion (Cp), pentamethylcyclopentadienyl anion (Cp*),
indene, etc.?
|
| A: |
To show the aromaticity for the cyclopentadienyl anion Cp(-):
- 1. Select the cyclopentadiene ring from the table of radicals.
- 2. Apply the Decrease charge button [-] to the CH2 carbon.
- 3. Select the now CH(1-) carbon and double click to bring up the properties
dialog box.
- 4. Choose the Atom tab and click on the "C" option under the diagram and
then deselect the "Show" option.
- 5. Apply this change and close the properties menu.
- 6. Select "Show Aromaticity" from the Tools Menu.
The structure should now show the Cp ring as an aromatic ring with a "-" in
the center of the ring.
cyclopentadienyl anion
It is now a matter of manipulating the structure if
you want to change its orientation to suitably represent a metallocene
structure such as Cp2ZrCl2:
|
| Q: |
I was pleased to read that ChemSketch 5.0 saves structures
in GIF format, but I wish that your 3D viewer program, ACD/3D Viewer 5.0,
would also save in GIF format. The 3D images are so nice that
I would like to put them on my web site!
|
| A: |
Don't despair, you *can* save the 3D images in GIF format
using our latest ChemSketch/Show3D software. Here's what you do:
- 1. start up the ACD/3D Viewer and click on the ChemSketch
button at the bottom;
- 2. draw or read in your molecule in ChemSketch, and click on the
3D Optimization button;
- 3. click on Copy to 3D at the bottom of the window;
- 4. in the 3D viewer, select the display option(s) desired;
- 5. select Copy from the Edit menu. This will place the 3D image
into the Windows Clipboard so that it can be pasted into many
things such as MS Word or Paint programs;
- 6. click on the ChemSketch button at the bottom;
- 7. select Draw mode (top left-hand corner);
- 8. select Paste from the Edit menu. This will place the 3D image
into the ChemSketch Window.
- 9. Lastly, select Export from the File menu and save the file in
GIF format.
|
| Q: |
Does ACD/Labs make its ChemSketch format publically available?
|
| A: |
Yes, we do. Please feel free to incorporate "SK2" as
an input or output format for your own program.
Download the format description from the Free Stuff page.
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