Acta Crystallogr B Struct Sci Cryst Eng Mater. 2014 Aug;70:761-7. doi: 10.1107/S2052520614014966. Epub 2014 Jul 31.

Synthesis and structural characterization of donor-stabilized disubstituted diphenyldithiophosphates of nickel(II).

Acta crystallographica Section B, Structural science, crystal engineering and materials

Sandeep Kumar, Ruchi Khajuria, Amanpreet Kaur Jassal, Geeta Hundal, Maninder S Hundal, Sushil K Pandey

PMID: 25080255 DOI: 10.1107/S2052520614014966

Abstract

Donor-stabilized addition complexes of nickel(II) with disubstituted diphenyldithiophosphates, [{(ArO)2PS2}2NiL2] {Ar = 2,4-(CH3)2C6H3 [(1), (5)], 2,5-(CH3)2C6H3 [(2), (6)], 3,4-(CH3)2C6H3 [(3), (7)] and 3,5-(CH3)2C6H3 [(4), (8)]; L = C5H5N [(1)-(4)] and C7H9N [(5)-(8)]}, were successfully isolated and characterized by elemental analysis, magnetic moment, IR spectroscopy and single-crystal X-ray analysis. Compound (4) crystallizes in the monoclinic space group P2(1)/n whereas compounds (7) and (8) crystallize in the triclinic space group P1. The single-crystal X-ray diffraction analysis of (4), (7) and (8) reveals a six-coordinated octahedral geometry for the NiS4N2 chromophore. Two diphenyldithiophosphate ions act as bidentate ligands with their S atoms coordinated to the Ni centre. Each of them forms a four-membered chelate ring in the equatorial plane. The N atoms from two donor ligands are axially coordinated to the Ni atom.

Keywords: diphenyldithiophosphates; donor stabilized; proton reduction

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• Journal Article