An inorganic helix in the supramolecular structure of trimethyltin diphenylarsinate, me3sn(o2asph2)n: a structural comparison of triorganotin arsinates and phosphinates

摘要

The crystallographic structure analysis of [Me3Sn(O2AsPh2)]n revealsudsupramolecular association owing to symmetric bridges between Me3Snudcentres afforded by O2AsPh2 groups. The resulting polymer has a helicaludtopology. A systematic analysis of triorganotin arsinato and phosphinatoudanalogues indicates a role for the remote substituents on aggregations patterns.