From the products of the reaction of P4S3 with tert-Butyliodide the co
mpound (t-Bu(S)P)2P4S3 was isolated in low yield. The compound is stab
le and has a structure related to the hydrocarbon brexane. By reaction
with triphenylphosphin the compounds (t-BuP)(t-Bu(S)P)P4S, and (t-BUP
)2P4S3 were obtained. The P-31-nmr spectra of all compounds were solve
d and used to determine the structure of the molecules. A complete set
of P-31-nmr data is given.