Coordination chemistry of the metalloligand [Pt2(μ-S)2(PPh3)4] with nickel(II) complexes – an electrospray mass spectrometry directed synthetic study
作者:S.-W. Audi Fong、T.S.Andy Hor、Jagadese J. Vittal、William Henderson、Shelley Cramp
DOI:10.1016/j.ica.2003.03.002
日期:2004.3
The reactivity of [Pt-2(mu-S)(2)(PPh3)(4)] towards a range of nickel(II) complexes has been probed using electrospray ionisation mass spectrometry coupled with synthesis and characterisation in selected systems. Reaction of [Pt-2(mu-S)(2)(PPh3)(4)] with [Ni(NCS)(2)(PPh3)(2)] gives [Pt-2(mu-S)(2)(PPh3)(4)Ni(NCS)(PPh3)](+), isolated as its BPh4- salt; the same product is obtained in the reaction of [Pt-2(mu-S),(PPh3)(4)] with [NiBr2(PPh3)(2)] and KNCS. An X-ray structure determination reveals the expected sulfide-bridged structure, with an N-bonded thiocyanate ligand and a square-planar coordination geometry about nickel. A range of nickel(II) complexes NIL2, containing beta-diketonate, 8-hydroxyquinolinate, or salicylaldehyde oximate ligands react similarly, giving [Pt-2(mu-S)(2)(PPh3)(4)NiL](+) cations. (C) 2003 Elsevier B.V. All rights reserved.