Interaction between the carbonyl group and a sulphur atom. Part 9. The relationship between conformation and ground- and excited-state interactions in some α-sulphur-substituted cycloalkanones
作者:Blanka Wladislaw、Hans Viertler、Paulo R. Olivato、Isabel C. C. Calegão、Vera L. Pardini、Roberto Rittner
DOI:10.1039/p29800000453
日期:——
Similarly, hyperconjugative interaction in the excited state is proposed to account for the bathochromic shift of the n→π* band, at 300 nm, of the same compounds. The shorter wavelength u.v. absorption band, at 250 nm, is assigned to charge transfer from sulphur to the carbonyl group owing to its dependence on the position of the 3p orbital of sulphur relative to the carbonyl group.