How to measure the cavity present in an organic molecule ?

Dear researcher, I wish to learn how to measure a cavity or cavity like arrangements present in an organic molecule. For proteins, many more online websites and softwares were available to...

07 August 2019 773 3 View

How to find dissociation energy for an organic molecule or dye doped metal ligand using Gaussian 09?

Dear Researchers, I have prepared an organic molecule combined with a dye. When it is experimentally exposed to sunlight (Visible or UV), what could be its stability or dissociation. I wish to...

04 May 2019 8,021 4 View

How to create gaussian input file for an organic molecule with metal ligand?

Dear Researchers, I am trying to find how a metal atom interacts with an organic ligand taken and to find its applications towards metal sensing. In this regard, can anyone tell me the different...

03 April 2019 2,111 3 View

Information required about Crystal and Materials studio softwares to study material properties?

May I request any of our research gate mates to tell me the details about the Crystal 09 and Materials studio softwares which are required to calculate material properties? Give me the detail...

05 June 2018 9,198 0 View

Gaussian error termination while doing PBS freq calculation, can anyone help to overcome this?

Dear all, I tried to run Gaussian calculation for Graphene layer from the test file and have successfully optimized it. While I try to calculate the frequencies and other orbital analysis...

04 May 2018 9,953 1 View

PBC calculations are meant for solid state calculations instead of gas phase of any molecules or only crystalline materials?

Dear all, I have a basic clarification regarding PBC calculations. Generally when we perform Gaussian calculations it will be in gas phase. My question is that PBC calculations meant for crystal...

04 May 2018 8,026 1 View

What is the method to obtain bond lengths and bond angles from powder xrd data?

Dear all, I am working with powder samples which are synthesized and some were purchased directly. In this regard, I use Gaussian 09 software to find optimized parameters like bond lengths and...

07 August 2016 3,242 10 View

How to complete dual dihedral PES scan simultaneously with having redundant coordinates?

Hi all, I have done previously PES scan by simultaneously rotating two dihedrals and have got the gaussian scan grid. Now, I wish to know that using opt=modredundant I have tried to run scan again...

06 July 2016 7,757 4 View

How to overcome this problem in sharing number of processors of a cpu?

Dear all, I am using a serial version of Gaussian 09 in my institution. In this regard, I want to share multiple processors for my optimization, when I am trying to do so while submitting the job...

06 July 2016 6,437 1 View

How can I overcome negative frequencies that occur during Gaussian calculations?

How can I overcome negative frequencies that occur during Gaussian calculations?.

07 August 2015 3,684 4 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

What could be reason for getting such type of graph for complex impedance in case of polymer blend films?

Its effect appears in real part of ac conductivity also. Can anyone suggest any reason behind it?

26 February 2021 3,487 3 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

How to prepare a thin polymer film by post-polymerization/crosslinking?

24 February 2021 2,362 5 View

How to resolve Gaussian error termination " Error termination via Lnk1e in F:\G16W\l103.exe" for TS(QST3)?

When I run the job for TS(QST3) in gaseous phase, it was completed without any error. But when I add water in CPCM model it terminated with an error: Inconsistency: ModMin= 2 Eigenvalue=...

21 February 2021 3,198 2 View