Synthesis and Magnetic Properties of Polyimidosulfur- and Bis(benzoxazolyl)methanide-ligated Complexes

Abstract

The sulfur-nitrogen ligand platform 1.9.1. Discovery of sulfur-nitrogen chemistry -a historical view GREGORY and SOUBEIRAN initiated a new discipline in chemistry with their discovery of the first sulfur-nitrogen compound back in 1835 and 1838, [98] while Schenck determined its exact constitution to be S4N4 (tetrasulfur tetranitride). [99] From there on, many scientists contributed to elucidate their properties. Further milestones were the work of GOEHRING, [100] suggesting an eightmembered ring for S4N4 that could finally be verified by X-ray diffraction experiments in 1947, and her work on the subsequent polymer polythiazyl (SN)n. [101] The latter exhibited electrical conductivity and superconductive properties at around 0.3 K. [102] Around the same time, sulfur diimide was prepared and accessed by GOEHRING and WEIS, based on the reaction of n-butylamine and sulfur tetrachloride (Scheme 1.4.a).