Please use this identifier to cite or link to this item: https://doi.org/10.1039/DT9940003177
Title: X-Ray photoelectron spectroscopic characterization of [{Pt(PPh3)2(μ3-S)}2PtCl 2], [{Pt2(PPh3)4(μ3-S) 2Cu}2(μ-dppf)][PF6]2 [dppf = Fe (C5H4PPh2)2] and other heterometallic aggregates derived from...
Authors: Aw, B.H.
Looh, K.K.
Chan, H.S.O. 
Tan, K.L. 
Hor, T.S.A. 
Issue Date: 1994
Source: Aw, B.H., Looh, K.K., Chan, H.S.O., Tan, K.L., Hor, T.S.A. (1994). X-Ray photoelectron spectroscopic characterization of [{Pt(PPh3)2(μ3-S)}2PtCl 2], [{Pt2(PPh3)4(μ3-S) 2Cu}2(μ-dppf)][PF6]2 [dppf = Fe (C5H4PPh2)2] and other heterometallic aggregates derived from.... Journal of the Chemical Society, Dalton Transactions (21) : 3177-3182. ScholarBank@NUS Repository. https://doi.org/10.1039/DT9940003177
Abstract: Title full: X-Ray photoelectron spectroscopic characterization of [{Pt(PPh3)2(μ3-S)}2PtCl 2], [{Pt2(PPh3)4(μ3-S) 2Cu}2(μ-dppf)][PF6]2 [dppf = Fe (C5H4PPh2)2] and other heterometallic aggregates derived from [{Pt(PPh3)2(μ-S)}2]. Lewis acid-base reactions between [{Pt(PPH3)2(μ-S)}2] and [{Cu(NO3)(μ-dppf)}2]-NH4PF6 [dppf = Fe(C5H4PPh2)2] and [PtCl2(NCMe)2] gave hexanuclear [{Pt2(PPh3)4(μ3-S) 2Cu}2(μ-dppf)][PF6]2 and trinuclear [{Pt(PPh3)2(μ3-S)}2PtCl 2] respectively. X-Ray photoelectron spectroscopic (XPS) studies of these sulfur aggregates were made together with other known alkylated complexes [Pt2(PPh3)4(μ-S)(μ-SR)]X (R = Me, X = 1; R = CH2Cl, X = Cl; R = CHCl2, X = PF6; R = CH2Ph, X = PF6) and metallated complexes [{Pt2(PPh3)4(μ-S)2} xML]n+nX- [M = Ni, L = Ph2PCH2CH2PPh2 (dppe), X = PF6, x = 1; M = Pd2, L = (μ-Cl)2, X = PF6, x = 2; M = Ag2, X = NO3, x = 2; M = Au, L = PPh3, X = PF6, x = 1; M = Hg, X = PF6, x = 2; M = Hg, L = dppe, X = PF6, x = 1; n = 2 for all M except Au where n = 1]. The observed binding energies are related to the charge distribution and nucleophilicity of the sulfur centres. The possibility of using multinuclear XPS [S(2p), P(2p), Cl(2p), Pt(4f)] to distinguish chemically inequivalent nuclei is examined.
Source Title: Journal of the Chemical Society, Dalton Transactions
URI: http://scholarbank.nus.edu.sg/handle/10635/95417
ISSN: 14727773
DOI: 10.1039/DT9940003177
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