Hypervalent selenium compounds containing N → Se intramolecular interactions: synthesis, characterization and X‐ray structures of [2‐(Me2NCH2)C6H4]SeS(S)PR2 (R = Ph, OiPr)

Abstract

Abstract[2‐(Me2NCH2)C6H4]SeS(S)PR2 [R = Ph (1), OiPr (2)] were prepared by reacting [2‐(Me2NCH2)C6H4]2Se2 with the appropriate disulfanes, [R2P(S)S]2. The compounds were characterized by multinuclear magnetic resonance (1H, 13C, 31P). The molecular structures of 1 and 2 were determined by single‐crystal X‐ray diffraction. Both compounds are monomeric and the nitrogen atom of the pendent CH2NMe2 arm is strongly coordinated to the selenium atom. The organophosphorus ligands are monodentate, thus resulting in a T‐shaped coordination geometry around selenium. Copyright © 2002 John Wiley & Sons, Ltd.