Crystal structure of O-isopropyl [bis-(tri-methyl-sil-yl)amino](tert-butyl-amino)-phosphino-thio-ate

Oleksandr O Kovalenko; Vasyl Kinzhybalo; Oleksii A Brusylovets; Tadeusz Lis

doi:10.1107/S205698901402622X

Crystal structure of O-isopropyl [bis-(tri-methyl-sil-yl)amino](tert-butyl-amino)-phosphino-thio-ate

Acta Crystallogr E Crystallogr Commun. 2015 Jan 1;71(Pt 1):o37-8. doi: 10.1107/S205698901402622X.

Authors

Oleksandr O Kovalenko¹, Vasyl Kinzhybalo², Oleksii A Brusylovets¹, Tadeusz Lis³

Affiliations

¹ Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska 64, 01601 Kyiv, Ukraine.
² Institute of Low Temperature and Structure Research, Okolna 2, 50-422 Wroclaw, Poland.
³ Faculty of Chemistry, University of Wroclaw, Joliot-Curie 14, 50-383 Wroclaw, Poland.

Abstract

[Bis(tri-methyl-sil-yl)amino](tert-butyl-imino)-thio-phospho-rane reacts in benzene with isopropyl alcohol via 1,2-addition of an (i) PrO-H bond across the P=N bond, resulting in the title compound, C13H35N2OPSSi2. In the mol-ecule, the P atom possesses a distorted tetra-hedral environment involving two N atoms from (Me3Si)2N- and (t) BuNH- groups, one O atom from an (i) PrO group and one S atom, therefore the mol-ecule has a stereocenter on the P atom but crystal symmetry leads to a racemate. In the crystal, a pair of enanti-omers form a centrosymmetric dimer via a pair of N-H⋯S hydrogen bonds.

Keywords: (trimethylsilyl)amino; N—H⋯S hydrogen bonding; crystal structure; phosphinothioate.