Benzoic Acid | C 7 H 6 O 2 | MD Topology | NMR | X-Ray

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QM Processing Stage

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Processing Stage Template Semi-Empirical QM (QM0) DFT QM (QM1) DFT Hessian QM (QM2)
Calculation None Energy Minization Energy Minization Hessian
Level of Theory None Semi-Empirical / SCF DFT (B3LYP/6-31G*) DFT (B3LYP/6-31G*)
Default Size Limit (Atoms) 2000 500 50 40
Content of MD Topology
Charges Derived From None MOPAC Merz-Singh-Kollman Merz-Singh-Kollman
Geometry User Provided Optimized Optimized Optimized
Non-Bonded Interactions Bonds Rule Based:

Parameters are asigned from existing parameters with a set of rules based on atom types and geometry.

 Hessian Based:

Force constant are calculated from the QM potential. New parameters are created when no suitable parameters exists.
Angles
Dihedrals

Data

Current Processing StateTemplate
Total Processing Time9:02:58 (hh:mm:ss)
Error recordedB3LYP/6-31G* level geometry optimisation step failed. This is most likely due to a problem with the molecule's geometry or net charge. Details: *** FAILURE TO LOCATE STATIONARY POINT, TOO MANY STEPS TAKEN

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