Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ica.2003.10.037
Title: An electrospray mass spectrometry-directed survey of the coordination chemistry of the metalloligand [Pt2(μ-S)2(PPh 3)4] with platinum(II) and palladium(II) chloride substrates: Influence of metal-ligand lability on product type
Authors: Fong, S.-W.A.
Hor, T.S.A. 
Devoy, S.M.
Waugh, B.A.
Nicholson, B.K.
Henderson, W.
Keywords: Metalloligand
Palladium complexes
Platinum complexes
Sulfide complexes
Issue Date: 10-May-2004
Citation: Fong, S.-W.A., Hor, T.S.A., Devoy, S.M., Waugh, B.A., Nicholson, B.K., Henderson, W. (2004-05-10). An electrospray mass spectrometry-directed survey of the coordination chemistry of the metalloligand [Pt2(μ-S)2(PPh 3)4] with platinum(II) and palladium(II) chloride substrates: Influence of metal-ligand lability on product type. Inorganica Chimica Acta 357 (7) : 2081-2090. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ica.2003.10.037
Abstract: The reactivity of the metalloligand [Pt2(μ-S) 2(PPh3)4] towards a wide range of platinum(II) and palladium(II) chloride complex substrates [L2MCl2] has been explored, using the technique of electrospray ionisation mass spectrometry to directly analyse reaction solutions. In the majority of cases, products are formed by addition of the ML2 2+ fragment to the {Pt 2S2} core, giving trinuclear species [Pt 2(μ-S)2(PPh3)4ML 2]2+. The adducts with Pt(diene) [diene=cyclo-octa-1,5- diene (cod), norbornadiene], Pd(cod), Pd(bipy) (bipy=2,2′- bipyridine), Pt(PMe3)2 and Pt(PTA)2 (PTA=phosphatriaza-adamantane) moieties were synthesised and characterised on the macroscopic scale, with [Pt2(μ-S)2(PPh 3)4Pt(cod)] (BF4)2 and [Pt 2(μ-S)2(PPh3)4Pd(bipy)] (PF 6)2 also characterised by X-ray diffraction studies. No metal scrambling was found to occur, as has been observed in some previous cases involving the related complexes [Pt2(μ-Se)2(PPh 3)4] and [Pt2(μ-S)2(dppe) 2] (dppe=Ph2PCH2CH2PPh2). With cis-[PtCl2(SOMe2)2] the species [Pt 2(μ-S)2(PPh3)4PtCl(SOMe 2)]+ was formed, as a result of the lability of the SOMe2 ligand. With palladium(II)-phosphine systems, the observed product species is dependent on the phosphine; the bulky PPh3 ligand in [PdCl2(PPh3)2] leads primarily to the analogous known species [Pt2(μ-S)2(PPh 3)4PdCl(PPh3)]+, and a small amount of the metal-scrambled species [PtPd2S2(PPh 3)5Cl]+. In contrast, [PdCl2(PTA) 2], containing the small PTA ligand gave [Pt2(μ-S) 2(PPh3)4Pd(PTA)2]2+. © 2003 Elsevier B.V. All rights reserved.
Source Title: Inorganica Chimica Acta
URI: http://scholarbank.nus.edu.sg/handle/10635/93084
ISSN: 00201693
DOI: 10.1016/j.ica.2003.10.037
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