Finding Help with Computational Chemistry on PF

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SUMMARY

The discussion focuses on troubleshooting errors encountered while using Gaussian software for computational chemistry, specifically in calculating the optimization and UV spectra of organometallic compounds. The user faced a syntax error due to incorrectly including the job name in the geometry optimization line while using the B3LYP/6-311G basis set. The solution provided involves removing the job name from the geometry optimization line to resolve the syntax error and proceed with the calculations.

PREREQUISITES
  • Understanding of computational chemistry principles
  • Familiarity with Gaussian software
  • Knowledge of basis sets and functionals, specifically B3LYP/6-311G
  • Basic understanding of molecular orbital (MO) theory
NEXT STEPS
  • Research Gaussian syntax and common errors in input files
  • Learn about different basis sets and functionals for organometallic compounds
  • Explore optimization techniques in computational chemistry
  • Study how to interpret UV spectra results from Gaussian calculations
USEFUL FOR

Students and researchers in computational chemistry, particularly those working with Gaussian software and organometallic compounds, will benefit from this discussion.

EL AALLAOUI Najla
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Hello everyone, I hope you are doing well?

Recently, I’ve been trying to calculate the optimization and Uv spectra of organometallic compounds using the Gaussian software .it’s my first time for the computational chemistry and I am inexperienced . When I run the measure using B3LYP/6-311G basis set I have an error in my calculation and I don't know what the problem is. So, I would be grateful if you show me how to solve it and could you give me the advice about the proper basis set and functional to calculate the MO energies knowing that I have C,H,N and Cu as atoms . And I attach the message received.

Thank you very Much
 

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Chemistry news on Phys.org
It looks like for some reason you’ve put the name of your job in the geometry optimization line. Gaussian is trying to read it as an option and is throwing a syntax error as a result. Remove that part and it should probably work.
 

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