Abstract
Metathetical reaction of the cyclometallated ferrocenylamine complexes [Pt{FeCp(σ,η5-C5H3CHRNMe2)}(dmso)Cl] (R = H 1 or Me 3) and [Pt2{Fe(σ,η5-C5H3CH2NMe2)2}(dmso)2Cl2] 2 with TlX (X = OAc or malonate), or the direct reaction with P(C6H4SO3-m)33– (tppms) and Et2NCS2–(dedtc), gave [Pt{FeCp(σ,η5-C5H3CHRNMe2)}(dmso)(OAc)], [{Pt[FeCp(σ,η5-C5H3CHRNMe2)](dmso)}2(mal)] (mal = malonate), Na5[Pt{FeCp(σ,η5-C5H3CHRNMe2)}(tppms)2], [Pt{FeCp(σ,η5-C5H3CHRNMe2)}(dedtc)] and bis-Pt analogues. These complexes were characterised by analysis, ES-MS and 1H, 13C and 195Pt NMR. Metathetical reaction of 1–3 with silver(I) salts generally gave ferrocenium derivatives. Substitution trans to the Pt–N or Pt–C bond is determined by the acceptor character of the co-ordinating group and this together with steric constraints limit the range of carboxylato complexes. The acetato complex [Pt{FeCp(σ,η5-C5H3CH2NMe2)}(dmso)(OAc)] crystallises with one molecule of H2O and a single crystal structure indicates a hydrogen bond between a solvent H2O and acetate ligand. Aqueous solutions of the water-soluble OAc, malonate and tppms complexes were studied by electrochemical and spectroscopic techniques. Their chemistry is regulated by pH-dependent equilibria involving aqua and hydroxo complexes and competing oxidation to the ferrocenium compound by molecular oxygen.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Chemical Society, Dalton Transactions
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
