作者:Anthony Linden、Changchun Fu、Agnieszka Majchrzak、Grzegorz Mloston、Heinz Heimgartner
DOI:10.1107/s0108270102003190
日期:2002.4.15
The molecules of dispiro[1,3-dithietane-2,2' :4,2"-diadamantane], C20H28S2, have crystallographic C-i symmetry, as well as local D-2h symmetry, and a planar 1,3-dithietane ring. The molecules of trispiro[1,3,5-trithiane-2,2' :4,2":6,2"'-triadamantane], C30H42S3, have approximate C-2 symmetry and the 1,3,5-trithiane ring has a twist-boat conformation. The C-S-C bond angles within the ring are about 8degrees larger than observed in most related 1,3,5-trithiane structures. In dispiro[1,2,4-trithiolane-3,2' :5,2"-diadamantane], C20H28S3, the molecules have local C-2 symmetry and the 1,2,4-trithiolane ring has a half-chair conformation.