Preparation and X-ray crystal structure of 3,3,5,5,9,9,11,11-octaphenyl-1,7-di-λ4-thia-2,4,6,8,10,12-hexa-aza-3,5,9,11-tetra-λ5-phosphabicyclo[5.5.0]dodecahexene: a twelve-membered inorganic heterocycle with a transannular sulphur–sulphur bond
Abstract
The reaction of the six-membered ring compound (Ph2PN)2NSCl with triphenylantimony is acetonitrile produces (Ph2PN)4(SN)2 shown by X-ray crystallography to consist of a twelve-membered ring with a transannular sulphur–sulphur bond.