Fusing Triphenylbismuth and PnPh (Pn = P-Bi): Synthesis, Isolation, and Characterization of 9-Bisma-10-Pnictatriptycenes.

The first series of 9-bisma-10-pnictatriptycenes Bi(CH)Pn (, Pn = P-Bi; see graphic) has been synthesized in a two-step procedure via suitable tris(2-bromophenyl)pnictanes and characterized in solution as well as in the solid state. DFT calculations suggest preferential interactions between and soft Lewis acids via the lighter pnictogen donor atom. Experimental studies demonstrate that even the weakest Lewis base in the series of , namely the dibismatriptycene , interacts with Lewis acidic [BiMe(SbF)] in solution.

A Crystallographic, Spectroscopic, and Computational Investigation of Carbonyl and Oxalyl Diisothiocyanate.

Carbonyl diisothiocyanate () and oxalyl diisothiocyanate () were synthesized by reactions of phosgene and oxalyl chloride with ammonium thiocyanate, respectively. Their structures were elucidated by single-crystal X-ray diffraction. exhibits weak intermolecular S-O contacts forming a loosely connected network of molecules, whereas exhibits weak intermolecular C-O contacts resulting in the formation of layers.