Journal of the American Chemical Society, Vol.118, No.13, 3225-3232, 1996
Spectroscopic, Structural, and Mass-Spectrometric Studies on 2 Systematic Series of Dithiabismuth(III) Heterocycles - Identification of Bismuthenium Cations and Their Solvent Complexes
General, high-yield metathesis reactions provide two related and comprehensive series of dithiabismuth heterocycles. The compounds are characterized by spectroscopic and X-ray crystallographic analysis. Monocycles 2-chloro-1,3-dithia-2-bismolane (1), 2-chloro-1,3-dithia-2-bismane (2), 2-chloro-1,3-dithia-2-bismepane (3), 2-chloro-1,3,6-trithia-2-bismocane (4), and 2-chloro-1,3-dithia-6-oxa-2-bismocane (5) are kinetically stable with respect to the tethered bicyclic derivatives 1,2-bis((1,3-dithia-2-bismolan-2-yl)thio (6), 1,3-bis((1,3-dithia-2-bisman-2-yl)thio)propane (7), 1,4-bis((1,3-dithia-2-bismepan-2-yl)thio)butane (8), bis((1,3,6-trithia-2-bismocan-2-yl)thio)ethyl) sulfide (9), and bis(((1,3-dithia-6-oxa-2-bismocan-2-yl)thio)ethyl) ether(10). Mass spectrometry provides an excellent means of characterization of compounds of this nature and is responsible for the identification of monocyclic bismuthenium cations as general and dominant dissociation products. In addition, the atmospheric pressure chemical ionization technique reveals solvent coordination chemistry of the bismuthenium cations.
Keywords:GROUP 5B-HALIDE-DITHIO-LIGAND COMPLEXES;CRYSTAL-STRUCTURES;X-RAY;POLYETHYLENE GLYCOLS;BISMUTH(III);ANTIMONY(III);4-COORDINATE