Main Group Metal Directed Self-Assembly in a Tetrameric Trimethyltin(IV) N-nitroso-N-phenylhydroxylaminato Complex Containing an Unprecedented 20-Membered Inorganic (Carbon-Free) Metallamacrocycle

摘要

Tetrakis[trimethyl(N-nitroso-N-phenylhydroxylaminato)tin(IV) was synthesized by reaction of cupferron ([PhN(O)NO]NH_4) with trimethyltin(IV) chloride. The complex was characterized by X-ray diffraction analysis, FT-IR and FT-Raman spectroscopy. An X-ray structural analysis of the title complex [Me_3Sn(O_2N_2Ph)]_4 reveals the first example of a bridging coordinated cupferronato ligand. This coordination pattern leads to an unprecedented inorganic 20-membered (carbon-free) metallamacrocycle Sn_4O_8N_8 in which four Me_3Sn and four PhN_2O_2 subunits are self-assembled.