Acta Crystallographica Section C

Crystal Structure Communications

Volume 63, Part 1 (January 2007)

organic compounds

 

Bis(tert-butylsulfonyl)ethyne and 1-tert-butylsulfinyl-2-tert-butylsulfonylethyne

D. B. Werz, F. Ohlbach, F. Rominger and R. Gleiter

Abstract: The title compounds are electron-poor ethynes. The structure determination of bis(tert-butylsulfonyl)ethyne, C₁₀H₁₈O₄S₂, (I), is the first of a bis-sulfonyl-substituted ethyne. The molecule is situated on a crystallographic inversion centre. The S-Csp bond [1.737 (2) Å] is the longest of this type reported to date. 1-tert-Butylsulfinyl-2-tert-butylsulfonylethyne, C₁₀H₁₈O₃S₂, (II), which is basically the same as (I) minus one O atom, crystallizes isomorphous with (I). This results in a nearly equal distribution of the three O atoms over the four possible positions.

Formula: C₁₀H₁₈O₄S₂ and C₁₀H₁₈O₃S₂

	Portable Document Format (PDF) file (216.9 kbytes) [ doi:10.1107/S0108270106047834/av3049sup4.pdf ] Supplementary material

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