Can NWCHEM calculate phosphorescence?


Forum Vet
I have used spin-flip TDDFT implemented in GAMESS with 6-31G+(d) and b3lyp in ethanol through the triplet geometry search, beginning with the equilibrium geometry optimized with mp2 and 6-311G++(2d,2p), to calculate the phosphorescence of 2-thiouracil, and got the T1-S0 gap energy , identical with that got beginning with the geometry directly form Avodadro, all in agreement with the experimentally observed at 77K in reference, close to the chemical accuracy of UV spectra.


I wish to know how to calculate it using NWCHEM.

Very Best Regards!

Forum Vet
DELETED.

Forum Vet
GAMESS spin-flip cis with 6-31G+(d) gives the gap of S0-T1 of gaseous uracil is far from of that obtained by spin-flip TDDFT with pbe0 which cannot be compared wtih the experimental data, whereas b3lyp cannot converge in this calculation.


Very Best Regards!


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