SN2P2: A Neutral Five-Membered Sulfur–Pnictogen(III) Ring
Prof. Dr. Henry F. Schaefer III4,*
1 The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 (China)
2 Freie Universität Berlin, Institut für Chemie und Biochemie, 14195 Berlin (Germany)
3 FB C—Anorganische Chemie, Bergische Universität Wuppertal, 42119 Wuppertal (Germany)
4 Center for Computational Quantum Chemistry, University of Georgia, Athens, GA 30677 (USA)
Angew. Chem. Int. Ed. 2015, 54, 1327–1330
The novel aromatic ring compound 2,4-diphospha-3,5-diaza-thiole (cyclo-SNPNP) was synthesized via flash pyrolysis of SP(N3)3 and characterized by IR spectroscopy and 15N isotope labeling. Quantum chemical computations indicate its formation by head-to-tail dimerization of SNP and subsequent elimination of a sulfur atom from the highly unstable boatlike six-membered-ring compound cyclo-SNPSNP.