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https://doi.org/10.1016/j.ica.2010.02.016
Title: | Synthesis and structural characterisation of the lead-platinum sulfido aggregates [Pt2(μ-S)2(PPh3)4PbX2] (X = Br, I); promotion of rare tetrahedral geometry for lead(II) | Authors: | Henderson, W. Hor, T.S.A. |
Keywords: | Coordination geometry Electrospray mass spectrometry Lead complexes Platinum complexes Sulfido ligands |
Issue Date: | 5-May-2010 | Citation: | Henderson, W., Hor, T.S.A. (2010-05-05). Synthesis and structural characterisation of the lead-platinum sulfido aggregates [Pt2(μ-S)2(PPh3)4PbX2] (X = Br, I); promotion of rare tetrahedral geometry for lead(II). Inorganica Chimica Acta 363 (8) : 1859-1863. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ica.2010.02.016 | Abstract: | The reactions of [Pt2(μ-S)2(PPh3)4] with excess PbBr2 or PbI2 in methanolic suspension result in the formation of the neutral lead(II) halide adducts [Pt2(μ-S)2(PPh3)4PbX2] (X = Br, I). The X-ray structure determination of the lead iodide adduct reveals an essentially tetrahedral lead(II) centre, which is a rare coordination geometry for lead(II), which almost invariably is hemidirected, with a stereochemically active lone pair. In contrast, the structure of the PbBr2 adduct, although suffering from some disorder, shows a more typical, distorted arrangement of ligands; these results are discussed in terms of the tendency for soft, bulky ligands to promote symmetric, holodirected geometries. The ESI mass spectra of the adducts are reported, and yield [M-halide]+ ions. © 2010 Elsevier B.V. All rights reserved. | Source Title: | Inorganica Chimica Acta | URI: | http://scholarbank.nus.edu.sg/handle/10635/95088 | ISSN: | 00201693 | DOI: | 10.1016/j.ica.2010.02.016 |
Appears in Collections: | Staff Publications |
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