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Require birad_r_recombination to be between a doublet and triplet #662
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Require birad_r_recombination to be between a doublet and triplet #662
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Regression Testing ResultsWARNING:root:Initial mole fractions do not sum to one; normalizing. Detailed regression test results.Regression test aromatics:Reference: Execution time (DD:HH:MM:SS): 00:00:01:07 aromatics Passed Core Comparison ✅Original model has 15 species. aromatics Failed Edge Comparison ❌Original model has 106 species. Non-identical thermo! ❌
thermo: Thermo group additivity estimation: group(Cs-(Cds-Cds)(Cds-Cds)(Cds-Cds)H) + group(Cds-Cds(Cds-Cds)(Cds-Cds)) + group(Cds-CdsCsH) + group(Cds-CdsCsH) + group(Cds-Cds(Cds-Cds)H) + group(Cds-Cds(Cds-Cds)H) + group(Cds-CdsCsH) + group(Cdd-CdsCds) + Estimated bicyclic component: polycyclic(s4_6_6_ane) - ring(Cyclohexane) - ring(Cyclohexane) + ring(124cyclohexatriene) + ring(124cyclohexatriene) Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics:
Observables Test Case: Aromatics Comparison
✅ All Observables varied by less than 0.500 on average between old model and new model in all conditions! aromatics Passed Observable Testing ✅Regression test liquid_oxidation:Reference: Execution time (DD:HH:MM:SS): 00:00:02:10 liquid_oxidation Failed Core Comparison ❌Original model has 37 species. Non-identical kinetics! ❌
kinetics: liquid_oxidation Failed Edge Comparison ❌Original model has 202 species. Non-identical kinetics! ❌
kinetics: Non-identical kinetics! ❌
kinetics:
Observables Test Case: liquid_oxidation Comparison
✅ All Observables varied by less than 0.100 on average between old model and new model in all conditions! liquid_oxidation Passed Observable Testing ✅Regression test nitrogen:Reference: Execution time (DD:HH:MM:SS): 00:00:01:26 nitrogen Passed Core Comparison ✅Original model has 41 species. nitrogen Passed Edge Comparison ✅Original model has 133 species.
Observables Test Case: NC Comparison
✅ All Observables varied by less than 0.200 on average between old model and new model in all conditions! nitrogen Passed Observable Testing ✅Regression test oxidation:Reference: Execution time (DD:HH:MM:SS): 00:00:02:24 oxidation Passed Core Comparison ✅Original model has 59 species. oxidation Passed Edge Comparison ✅Original model has 230 species.
Observables Test Case: Oxidation Comparison
✅ All Observables varied by less than 0.500 on average between old model and new model in all conditions! oxidation Passed Observable Testing ✅Regression test sulfur:Reference: Execution time (DD:HH:MM:SS): 00:00:00:56 sulfur Passed Core Comparison ✅Original model has 27 species. sulfur Failed Edge Comparison ❌Original model has 89 species.
Observables Test Case: SO2 Comparison
✅ All Observables varied by less than 0.100 on average between old model and new model in all conditions! sulfur Passed Observable Testing ✅Regression test superminimal:Reference: Execution time (DD:HH:MM:SS): 00:00:00:39 superminimal Passed Core Comparison ✅Original model has 13 species. superminimal Passed Edge Comparison ✅Original model has 18 species. Regression test RMS_constantVIdealGasReactor_superminimal:Reference: Execution time (DD:HH:MM:SS): 00:00:02:22 RMS_constantVIdealGasReactor_superminimal Passed Core Comparison ✅Original model has 13 species. RMS_constantVIdealGasReactor_superminimal Passed Edge Comparison ✅Original model has 13 species.
Observables Test Case: RMS_constantVIdealGasReactor_superminimal Comparison
✅ All Observables varied by less than 0.100 on average between old model and new model in all conditions! RMS_constantVIdealGasReactor_superminimal Passed Observable Testing ✅Regression test RMS_CSTR_liquid_oxidation:Reference: Execution time (DD:HH:MM:SS): 00:00:05:53 RMS_CSTR_liquid_oxidation Failed Core Comparison ❌Original model has 37 species. RMS_CSTR_liquid_oxidation Failed Edge Comparison ❌Original model has 206 species. Non-identical kinetics! ❌
kinetics:
Observables Test Case: RMS_CSTR_liquid_oxidation Comparison
✅ All Observables varied by less than 0.100 on average between old model and new model in all conditions! RMS_CSTR_liquid_oxidation Passed Observable Testing ✅beep boop this comment was written by a bot 🤖 |
Disproportionation between two triplets seems to be broken as well. Interestingly, the H_abstraction family gives the following reaction which assumes the spin of both triplets is the same. |
For disproportionation, I just made changes to allow atom *2 in the template to have an unpaired electron, which may be the case for triplet-triplet disproportionation reactions. This allows reactions like the example in the last comment. |
The latest change to the disproportionation family has messed with the trees used for estimation. I think we will need to re-build the tree... or maybe only add the unpaired electron option to the root? |
…the Root of the tree
I wrote the following function to generate all possible singlet diradicals without radical centers on neighboring atoms from a singlet molecule (must have a pi bond)
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Regression Testing ResultsWARNING:root:Initial mole fractions do not sum to one; normalizing. Detailed regression test results.Regression test aromatics:Reference: Execution time (DD:HH:MM:SS): 00:00:01:08 aromatics Passed Core Comparison ✅Original model has 15 species. aromatics Passed Edge Comparison ✅Original model has 106 species.
Observables Test Case: Aromatics Comparison
✅ All Observables varied by less than 0.500 on average between old model and new model in all conditions! aromatics Passed Observable Testing ✅Regression test liquid_oxidation:Reference: Execution time (DD:HH:MM:SS): 00:00:02:11 liquid_oxidation Failed Core Comparison ❌Original model has 37 species. Non-identical kinetics! ❌
kinetics: liquid_oxidation Failed Edge Comparison ❌Original model has 202 species. Non-identical kinetics! ❌
kinetics:
Observables Test Case: liquid_oxidation Comparison
✅ All Observables varied by less than 0.100 on average between old model and new model in all conditions! liquid_oxidation Passed Observable Testing ✅Regression test nitrogen:Reference: Execution time (DD:HH:MM:SS): 00:00:01:29 nitrogen Failed Core Comparison ❌Original model has 41 species. nitrogen Failed Edge Comparison ❌Original model has 133 species. Non-identical thermo! ❌
thermo: Thermo group additivity estimation: group(O2s-CdN3d) + group(N3d-OCd) + group(Cd-HN3dO) + ring(oxirene) + radical(CdJ-NdO) Non-identical kinetics! ❌
kinetics:
Observables Test Case: NC Comparison
✅ All Observables varied by less than 0.200 on average between old model and new model in all conditions! nitrogen Passed Observable Testing ✅Regression test oxidation:Reference: Execution time (DD:HH:MM:SS): 00:00:02:28 oxidation Passed Core Comparison ✅Original model has 59 species. oxidation Passed Edge Comparison ✅Original model has 230 species.
Observables Test Case: Oxidation Comparison
✅ All Observables varied by less than 0.500 on average between old model and new model in all conditions! oxidation Passed Observable Testing ✅Regression test sulfur:Reference: Execution time (DD:HH:MM:SS): 00:00:00:58 sulfur Passed Core Comparison ✅Original model has 27 species. sulfur Failed Edge Comparison ❌Original model has 89 species.
Observables Test Case: SO2 Comparison
✅ All Observables varied by less than 0.100 on average between old model and new model in all conditions! sulfur Passed Observable Testing ✅Regression test superminimal:Reference: Execution time (DD:HH:MM:SS): 00:00:00:38 superminimal Passed Core Comparison ✅Original model has 13 species. superminimal Passed Edge Comparison ✅Original model has 18 species. Regression test RMS_constantVIdealGasReactor_superminimal:Reference: Execution time (DD:HH:MM:SS): 00:00:02:23 RMS_constantVIdealGasReactor_superminimal Passed Core Comparison ✅Original model has 13 species. RMS_constantVIdealGasReactor_superminimal Passed Edge Comparison ✅Original model has 13 species.
Observables Test Case: RMS_constantVIdealGasReactor_superminimal Comparison
✅ All Observables varied by less than 0.100 on average between old model and new model in all conditions! RMS_constantVIdealGasReactor_superminimal Passed Observable Testing ✅Regression test RMS_CSTR_liquid_oxidation:Reference: Execution time (DD:HH:MM:SS): 00:00:05:55 RMS_CSTR_liquid_oxidation Failed Core Comparison ❌Original model has 37 species. RMS_CSTR_liquid_oxidation Failed Edge Comparison ❌Original model has 206 species. Non-identical kinetics! ❌
kinetics:
Observables Test Case: RMS_CSTR_liquid_oxidation Comparison
✅ All Observables varied by less than 0.100 on average between old model and new model in all conditions! RMS_CSTR_liquid_oxidation Passed Observable Testing ✅beep boop this comment was written by a bot 🤖 |
This function can take in a singlet diradical and choose the best closed shell singlet representation...
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@donerancl Hi Anna. Thanks for these insights! I am curious about the reasons why we need to let RMG consider triplet diradical + triplet diradical <=> doublet R + doublet R. I've noticed the current RMG model rarely include triplet diradical + triplet diradical reactions, apart from serveral clearly incorrect HNO(T) reactions, like HNO(S)+HNO(S)(+M)=HNO(T)+HNO(T)(+M). Is the consideration of this type of reaction driven by its importance as stated in theoretical literature? Thanks. |
@ChgCao Hi Chuangchuang. Thanks for the comment. I think you are right that the triplet diradical + triplet diradical reactions are rarely important, since we expect both concentrations to be small. I think the issue is that there isn't much consistency between how families treat them. I worry if triplet-triplet reactions are allowed by some families (like H_abstraction, Birad_R_Recombination) and not by others (like Disproportionation), the edge will be lopsided. The pressure dependent HNO(S) + HNO(S) <=> HNO(T) + HNO(T) net reaction you mention is technically spin-allowed, although surely very slow in the forward direction (~40 kcal/mol endothermic) and unimportant in the reverse direction due to low concentrations of HNO(T). I also wonder if the importance of HNO(T) has been overestimated due to some of the spin conservation bugs we have found in the code. Maybe we don't need to worry about it as much like you say. |
The Birad_R_Recombination family seems to be intended for recombination of a doublet R radical and a triplet biradical with opposite spin, producing a doublet radical.
Ex.
Currently, the family also allows a similar recombination between two triplets.
Ex.
These triplets must have opposite spin to form a bond, forming an overall singlet. However, RMG calculates the multiplicity based on the number of unpaired electrons (2) + 1. It is not clear to me yet how RMG should represent singlet diradicals. Two options are
<=>
For now, I suggest limiting this reaction family to triplet doublet recombinations.