Calculations on the singlet-triplet energy separations of silaethylene
β Scribed by O.P. Strausz; M.A. Robb; G. Theodorakopoulos; P.G. Mezey; I.G. Csizmadia
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 327 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
The total energy and the conformationol hypetsutfacc of the lowest singlet and triplet states of sðylene, C.!2SiH2 have been studied using ab initio SCF MO calculations with unrestricted and restricted Hartree-Fock methods, A minimal and an extended basis set was employed. The ground state is predicted to be a singlet and the lowest triplet state to lie 9.6 kcal/mole above. The estimattd correlation energy correction would raise AE(T, -So) to ~16 kcal/mole.
π SIMILAR VOLUMES
Data on the rate of triplet-triplet energy transfer to stilbenes are reinterpreted in terms of the overlap of the TI H So transition bands in the sensitizer and acceptor. So-called 'non-vertical" excitation follows closely the Franck-Condon probabilities in the spectra, the "phantom triplet" being i
Ab initio motecufar orbital cakulations on isomers with the molecular formula CSiFz arc reported at the 3-21G//3-21G and 6-3 lG\*//3-21G ievefs of theory for both the sir&et and triplet energy surfaces wd the results are compared wit11 those for the CSifia surfzrces.