Abstract

The ultraviolet absorption spectrum of methyl allenyl sulfide CH 3SCHCCH 2 was recorded in solution from 30000–50000 cm −1 in order to inquire further into the role of sulfur 3d valence-shell and 4s Rydberg-type atomic orbitals for the low-lying excited singlet states in unsaturated organic sulfides. It is shown that sulfur 3d atomic orbitals cannot be neglected for the interpretation of the low-energy excited singlet states of unsaturated organic sulfides.

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