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2005
Structure
C 1000
23- 001
The Highest Bond Order Between Heavier Main-Group Elements in an Isolated
Compound? Energetics and Vibrational Spectroscopy of S2I4(MF6)2 (M: As, Sb).
— The vibrational spectra of S2I4(MF6)2 (M: As, Sb), a normal coordinate analysis of
S2 I24 + , and a redetermination of the X-ray structure of S 2I4(AsF6)2 at low temperature
show that the S—S bond in S2 I24 + has an experimentally based bond order of 2.2—2.4,
not significantly different from bond orders, based on calculations, of the Si—Si bonds
in the proposed triply bonded disilyne of the isolated compound
[(Tms)2CH]2(iPr)SiSiSiSi(iPr)[CH(Tms)2]2 and hypothetical trans-RSiSiR (R: H, Me,
Ph). — (BROWNRIDGE, S.; CAMERON, T. S.; DU, H.; KNAPP, C.; KOEPPE, R.;
PASSMORE*, J.; RAUTIAINEN, J. M.; SCHNOECKEL, H.; Inorg. Chem. 44
(2005) 6, 1660-1671; Dep. Chem., Univ. New Brunswick, Fredericton, New
Brunswick E3B 6E2, Can.; Eng.) — Schramke
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