How to handle the multiple read keywords in the Gaussian input?

Dear All, I am trying the calculate the ROA calculations on the isotopically labelled forms of a molecule. For ROA and for the selection of isoptopes, i need to specify the input frequency of...

31 December 2018 9,452 1 View

What is reason for the existing covalent bond broken effect while generating the molecular graph using AIM2000?

I am experiencing an error while generating the molecular graph using AIM 2000 Program. When I check from the .sum file, the critical point parameters corresponding to all the covalent bonds are...

07 August 2018 6,761 0 View

Why the bonds or trajectories between the non-bonded atoms in the AIM molecular graph is not straight?

In the atoms in molecules calculation, we get molecular graph which represents the bonds or trajectories between the non-bonded atoms. In some cases, the trajectories between the non-bonded atoms...

07 August 2018 847 0 View

How to add Europium atomic parameter in autodock?

In one of ligand molecules, we have Europium atom. Please let me know how the atomic parameters of Europium can be added in autodock.

07 August 2017 6,060 2 View

What does the error "Two-electron integral symmetry is turned on." or "Two-electron integral symmetry is turned off." meant for in Gaussian output?

Dear All, when I optimize the structure without nosymm keyword, the job was terminated with the error "Two-electron integral symmetry is turned on". when I optimized the structure with nosymm...

01 February 2016 468 0 View

Why does the NBO output of Gaussian doesn't give information about hydrogen bonding interactions within the molecule?

08 September 2015 7,900 2 View

How can I draw 4D gaussian grid plot in Gaussian?

I have choosen three different dihedral angle coordinates for finding the conformational stability of a molecule. When i try to view gaussian grid plot, it shows the plot like a 2D plot (angle is...

06 July 2015 10,066 2 View

How do I find the canonical molecular orbital informations from Gaussian output file?

06 July 2015 9,087 16 View

How do we use the option "anharmonic corrections" in Gaussian 09W?

04 May 2015 6,748 2 View

How do we use the option "anharmonic corrections" in Gaussian 09W?

04 May 2015 8,887 3 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What is the best way to keep an anaerobic chamber anoxic in the absence of hydrogen?

I'm a graduate student who works with an anaerobe, so I often work in an anaerobic chamber. I've been working on an assay that involves the steady-state of the quinone/ quinol pool. Anoxic...

03 March 2021 2,971 1 View

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View