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ChemDraw Opening Multiple Applications on Mac

Hello Everyone, I have had this problem with ChemDraw for a few years now and now that I am stuck working at home on a laptop (COVID), I need to address it. When I open ChemDraw it will open fine and...

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Using ChemScript to export to .eps

Dear Community, I'm looking for a simple solution that allows a quick export to export the active document example.cdxml to example.eps within the same directory. File -> Save As is quite a...

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Salt Stripping SMILES with uneven number of salts

I have automated code that processes a CRO compound collection database file containing SMILES. The code is written in C# and I am using the ChemScript RemoveSaltsAndSolvents method. Commonly the CRO...

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Why does Chem3D minimize nitrogen dioxide (radical) so badly?

I build from text `O-N+O`, I delete the hydrogen atom added automatically on N, then I click Ctrl+M. Both the bond length and the angle differ from what I see in the top right image here:...

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ChemDraw 19.1 won't start - error 0xc000007b

Hello, I came across a strange issue with the office suite. All my software is on different disk than the operating system. Installation of ChemOffice was not a problem, exept that ChemDraw always...

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Chemdraw 19.1 Problems

Chemdraw 19.1 has introduced two bugs that I do not recall in 19.0. I did not expect so many problems in a 0.1 update! First, when I save an edited file created in 19.0 or earlier, it often defaults...

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Table background colour

Is there a way of changing the background colour of a table in ChemDraw?

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Chemdraw 19.1- issues with "undo"

I am having issues with the "undo" function undoing multiple steps instead of what was last done in chemdraw (both when i click actual button and when using CTRL Z). This occured a bit towards to the...

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ChemDraw Export High Quality PDF or EPS

Hello, I am trying to export from ChemDraw 19.1.0.8 to PDF or EPS. The document contains chemical structures, text and PNGs with transparency. Unfortunately, ChemDraw does not offer PDF export (a...

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How do you define image analysis?

Hi all, Is the Harmony based image analysis best refered to as spatial analysis? or morphometric analysis? of cells. Or is there a more defined appropariate terminology that I have missed here? Any...

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ChemDraw 17.1 - Atom Number stuck to the Molecule - How to move?

Hello all, Grad student in organic chemistry here. I am writing up my experimental part and I have a problem concerning ChemDraw. I am displaying atom numbers every few atoms to make clear how I would...

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Gaussian 16W with Chem3d

Hi Am running the newest version of Chem3d (I believe 19.1.0.8) and am having issues interacting with Gaussian 16W (in particular, every time I try to do a job, I get an out of memory error and have...

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ChemDraw 19.1 Splash Screen

The splash screen of ChemDraw in my Wibdows 10 64 bits stays on top of all applications, it does not get hidden when I click on another application (MS Word, Outlook). It means that for the few...

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Delta+ and Delta-

In the menu, it is possible to add + and - charges for atoms. It would be nice to be able in a simple click to add "d+" and "d-" (d here is for the lowercase Greek letter delta, this forum does not...

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Chemical Formula higher by 2 hydrogens

I keep getting an addition of 2 extra hydrogens (2 amu) to the molecular weight of some structures converted from SMILES strings. This seems to happen only for a subset of structures that are somewhat...

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ChemDraw19 on Mac 10.14.6

Either use 'sigma orbital' highlight then choose 'Curves' and select 'faded' - colour fine if bond horizontal defaults to white on any other angle. Same result achieved by taking 's orbital' and...

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the fade orbitals are not coloured

Either use 'sigma orbital' highlight then choose 'Curves' and select 'faded' - colour fine if bond horizontal defaults to white on any other angle. Same result achieved by taking 's orbital' and...

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ChemScript help

Is there a place where more complete documentation exists for ChemScript? help(ChemScript19.StringVetor), for example, gives no detailed descriptions as to what anything does. Right now I'm trying to...

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Celery service not starting properly after installing Columbus 2.9.1 on RHEL...

After installing Columbus 2.9.1 on RHEL 6.10 the Celery service is not starting correctly. In this case, it does not display any message on /etc/init.d/columbus start however when you do...

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Need help understanding "Select Populations" Methods

Hello! I have a quick question about Columbus' "Select Populations -- Linear Classifier" method. I am trying to quantify co-localizations of puncta [IHC of cortex] and also compare those...

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why the structure isn't correct when I did MM2 optimization in chem3d?

hi I have a question with MM2 optimization function of chem3d. I draw molecule and do MM2 optimization but the structure doesn't correspond with the structure that I expect. (The structure I expect is...

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ChemDraw Software Error

I have music and sound problems on ChemDraw and am looking for solutions, so far I have not found the answer.

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Big Sur

Is ChemDraw compatible with the latest Mac OS update Big Sur?

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Calculations interface

I installed Chem3d v 20.0 (windows 10) and already have GAMESS 2019 installed in the default directory (\users\public\gamess-64\). When I installed Chem3d, I checked tosee that the gamess-us interface...

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How to import optimized geometry from GAMESS?

I want to calculate vibrational frequencies with GAMESS. This needs to be done at the optimized geometry. I can start an energy minimization, but when I follw this by a frequency run (or IR/Raman...

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Swap H and C in an alkyl chain label

Hello, I'm sorry if this has been answered before, but I haven't manage to find anything with a search. I'm drawing a molecule and I need to add an alkyl chain as a side label (e.g. C6H13). If said...

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Table Template - List Items

If I have a table template containing a column which is defined as a list and I add, edit or delete items from this list, are the changes reflected in experiments that have already been created which...

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hemDraw professional 15 msi file ?.

Hello, Can anyone tell me where I can download Chem Draw Professional? thanks alexsunny

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Character map missing

When I select "View Character Map" from the View drop down menu, nothing happens. The issue started after I was using chemdraw on a second monitor, then went back to just my laptop screen. All other...

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No page setup menu appears; alternate way to get page into landscape...

When I go to change the orientation of my page to landscape through the page setup button (orctrl+shift+p), I find that no menu opens at all (on ChemDraw 20.0), although I do get the blue circle/ring...

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Problems converting ChemDraw to .eps and .pdf ?.

Hello, After updating to ChemDraw 16, I have encountered two issues with converting ChemDraw documents to .eps files for use in Latex documents. The bond width in the exported .eps file is almost...

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Origin and SIgnals Notebook

Is it possible to have origin working in signals notebook (with a button just like Excel is implemented)?

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Where is my main tool bar? Chemdraw 20.0

I just upgraded from Chemdraw 19 to 20; I have no main tool bar. the box for the main tool bar to be shown in checked in the view menu. It is not there. This used to be a much more user friendly...

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ERROR ChemScript Mm2OptimizeGeometry does NOT iterate

I wanted to run Mm2 optimization as in Chem3D using ChemScript on python. The following function is supposed to do so, but it only runs once. Chaging the arguments for the RMS gradient or others do...

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chemdraw 15 in Big Sur

I just updated my operatine system to Big Sur. My ChemDraw 15 can not be opened. Any advise on updating the ChemDraw 15? Thanks.

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Multiple MM2 minimization using Chem3D

I would like to perform MM2 energy minimization on multiple molecules individually. If I run MM2 minimization with all molecules docked in the same script the energy minimization is calculated for the...

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chemdraw 20.0 Not responding once predict NMR

I am using Chemdraw 20.0 on windows 10 home edition. Whenever I use predict NMR button, the program will stop responding and I must turn it off by force. How to solve this problem? Thanks very much.

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Structure to Name crashes on pasted InChI

ChemDraw 19 crashes after pasting in InChI=1S/C3N4/c4-1-7(2-5)3-6 and then trying Structure to Name on structure. Structure to name on manually drawn structure does not crash ChemDraw 19

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win10 の host ID

違うネットワーク環境で使用する毎にhost IDが変わり、chem draw のアクチベーションが必要になってしまう。

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Win10のhost ID

違うネットワーク環境で使用すると、同じPCでもhost IDが変わりchem drawのアクチベーションが必要になってしまうが、どうしたらよいか。

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Espn.com/activate

They have listened to everyone of my problem whether they be big or small.Have you ever had the opportunity to say a simple thank you and have let the opportunity pass?Thank you for helping me put the...

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Problem with Chem3D 16.0 Save copy as .pdb

Dear Members, I built a ssDNA polymer in ChemDraw 16.0 and using Chem3D 16.0, I ran MM2 for energy minimization. Upon saving copy as .pdb, COMPND, ATOM, HETATM, and CONECT records are used by Chem3D;...

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Rename a notebook or an experiment

I have several notebooks in Signal. However, I started to realise that I gave them rather not very informative names. Is it possible to rename a notebook that contains several experiments? If yes –...

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UV Winlab Print Report and Auto add to samples

Sorry if this is the wrong topic are for the question. I am having trouble attempting to streamline the use of UV Winlab v6.4.0 for general use in our lab. Previously, we have been using an older...

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Please improve your software. Here are some sincere suggestions.

When I use ChemDraw, your software has many problems. It gets stuck when drawing a large number of graphics. Every time I enter ChemDraw through word editing, it opens slowly, and all toolbars cannot...

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ChemDraw round trip editing Mac

I’ll keep this simple. For a long time, chemdraw structures could be pasted into word and PowerPoint, clicked on, and brought back to chemdraw. The same way it works with windows. The consistent...

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ChemDraw 16 Mac does neither open .cdx nor .sdf files

Hi, my ChemDraw 16 Mac does not open .cdx or .sdf files after I followed advice from the Cambridgesoft support group to fix another issue with my ChemDraw and Catalina (freezing on saving). I followed...

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Need help identifying this line type

Hello folks, I'm having to recreate a chemical struture in Chemdraw, part of it includes this 'jagged' vertical line I haven't encountered before. I've browsed all my available toolbars and haven't...

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how to tear off tool palette w/ Mac track pad

Directions say to use left click. I did a search to find Mac trackpad leftclick equivalent, but it says to just click on trackpad...doesn't work

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eps file - text not saved as text (only MacBook)

Hello everone, I write my thesis with LaTeX. To be able to use a package called chemnum to number chemical structures automatically, I need to save all my ChemDraw-files as eps-file. The problem is...

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