Synthesis and structure of heavier group 2 metal complexes with diselenoimidodiphosphinato ligand containing SreSe and BaeSe direct bonds

Kottalanka, R K and Anga, S and Jana, S K and Panda, Tarun K (2013) Synthesis and structure of heavier group 2 metal complexes with diselenoimidodiphosphinato ligand containing SreSe and BaeSe direct bonds. Journal of Organometallic Chemistry, 740. pp. 104-109. ISSN 0022-328X

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Abstract

We report the mononuclear diselenoimidodiphosphinato strontium and barium complexes of the molecular formula [{h2-N(PPh2Se) 2}2Sr(THF)2] (2) and [{h2-N(PPh 2Se)2}2Ba(THF)3] (3) which can be obtained by two routes, either by the treatment of metal bis(trimethylsilyl)amide and diselenoimidodiphosphine (1) via the elimination of silylamine or salt metathesis reaction involving metal diiodide and potassium salt of diselenoimidodiphosphine. In the solid state structures of 2 and 3, each of the metal atom is ligated by four selenium atoms from two diselenoimidodiphosphinato ligand moieties and two (for 2) and three (for 3) THF molecules to adopt a distorted octahedral geometry around the strontium atom and distorted pentagonal bipyramidal geometry for barium ion. In the complexes 2 and 3, a direct metal selenium contact is observed. Additionally we also report the synthesis and structure of lithium complex [h2-N(PPh2Se) 2Li(THF)2] (4) which was synthesized by using 1 and LiCH2SiMe3 in THF solution

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IITH Creators:
IITH CreatorsORCiD
Panda, Tarun Khttp://orcid.org/0000-0003-0975-0118
Item Type: Article
Uncontrolled Keywords: Barium; Diselenoimidodiphosphine; Metallacycle; Selenium; Strontium
Subjects: Chemistry
Divisions: Department of Chemistry
Depositing User: Team Library
Date Deposited: 29 Nov 2014 09:16
Last Modified: 07 Sep 2017 11:30
URI: http://raiithold.iith.ac.in/id/eprint/1061
Publisher URL: https://doi.org/10.1016/j.jorganchem.2013.04.056
OA policy: http://www.sherpa.ac.uk/romeo/issn/0022-328X/
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