ReactionMechanismGenerator / ReactionMechanismGenerator/RMG-database

Group Additivity Values-Missing groups and Various sources

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Dominant language
Python
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127
Forks
160
Avg merge
6d 2h
Merged PRs (30d)
2

Description

I am currently working on MMA (Methyl Methacrylate) oxidation mechanism generation. We noticed that RMG is calculating some of the group additivity values from different sources e.g. benson or other quantum calculations which is being problematic and not reflecting a correct thermo properties values. If they did the thermo values from one source would have been right but summation and relying on various sources gave wrong thermo properties and in some cases missing thermo groups. Such as MMA molecule and another isomers of MMA (C5H8O2)

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Research direction

Start by reproducing the thermo calculations for methyl methacrylate (MMA) and the reported C5H8O2 isomers, then trace how group additivity values are selected from Benson and quantum-calculation sources. The issue provides no file or test entry point; done should mean the affected molecules receive complete, consistent thermo group values without problematic mixing of sources.

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Assessment

Tech stack
python
Domain
databases
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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