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‐(Me 2 NCH 2 )C 6 H 4 ]SeS(S)PR 2 [R = Ph (1), O i Pr (2)] were prepared by reacting [2‐(Me 2 NCH 2 )C 6 H 4 ] 2 Se 2 with the appropriate disulfanes, [R 2 P(S)S] 2 . The compounds were characterized by multinuclear magnetic resonance ( 1 H, 13 C, 31 P). 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 CH 2 NMe 2 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.