Dinuclear sulfide-thiolate complexes [Pt-2(mu-S)(mu-SR)(PPh3)(4)](+) as cationic metalloligands

摘要

The cationic monoalkylated derivatives of the well-known metalloligand [Pt-2(mu-S)(2)(PPh3)(4)], viz. [Pt-2(mu-S)(mu-SR)(PPh3)(4)](+) (R = n-Bu, CH2Ph) are themselves able to act as metalloligands towards the Ph3PAu+ and R'Hg+ (R' = Ph or ferrocenyl) fragments, by reaction with Ph3PAuCl or R'HgCl, respectively. The resulting dicationic products [Pt-2(mu-SR)(mu-SAuPPh3)(PPh3)(4)](2+) and [Pt2(mu-SR)(mu-SHgR') (PPh3)(4)](2+) are readily isolated as their hexafluorophosphate salts, and have been fully characterised by spectroscopic techniques and an X-ray structure determination on [Pt-2(mu-SR)(mu-SHgFc)(PPh3)(4)](PF6)(2). (c) 2007 Elsevier B.V. All rights reserved.