The sulfur S-n(-) n = 2, 3 anions produced in a hot cathode discharge ion source were mass-selected and embedded in a neon matrix at 6 K. A long progression with the excitation of up to 12 vibrational quanta is observed in the A (2)Pi(u) <-- X (2)Pi(g) electronic spectrum of S-2(-) with the onset at 467.1 nm. The inferred spectroscopic constants in the A (2)Pi(u) state are: nu(0-0) = 21,407 +/-4 cm(-1), omega'(0) = 328.4 +/- 1 cm(-1) omega'(0)x'(0) = 2.4 +/- 0.1 cm(-1). The electronic spectrum of S-3(-) in a neon matrix exhibits a rich vibrational structure with a bimodal intensity distribution. This results from the overlap of two electronic transitions, (C) over tilde (2)A(2) <-- <(X)over tilde>(2) B, and ((D) over tilde or (E) over tilde) <-- <(E)over tilde>B-2(1), with origins at 701.3 and 619.1 nm. The frequencies (cm(-1)) of the totally symmetric modes nu(1) and nu(2) are 466, 184 in the (C) over tilde (2)A(2) and 446, 177 in the ((D) over tilde or (E) over tilde) states. (C) 2008 Elsevier B.V. All rights reserved.
Hypovalent radicals. 13. Gas-phase nucleophilic reactivities of phenylnitrene (PhN<sup>-</sup> •) and sulfur anion radicals (S<sup>-</sup>•) at sp<sup>3</sup> and carbonyl carbon
作者:Richard N. McDonald、A. Kasem Chowdhury
DOI:10.1021/ja00340a010
日期:1983.1
Annenkova, V. Z.; Antonik, L. M.; Khaliullin, A. K., Journal of general chemistry of the USSR, 1983, vol. 53, p. 2174 - 2174
作者:Annenkova, V. Z.、Antonik, L. M.、Khaliullin, A. K.、Gorban', N. A.、Vakul'skaya, T. I.、Voronkov, M. G.