Synthetic, structural, electrochemical, and theoretical studies of heterometallic aggregates with a [Pt(2)(mu-S)(2)M] core (M = Hg, Au)

Xingling Xu; S-W Audi Fong; Zhaohui Li; Zhi-Heng Loh; Feng Zhao; Jagadese J Vittal; William Henderson; Soo-Beng Khoo; T S Andy Hor

doi:10.1021/ic011181o

Synthetic, structural, electrochemical, and theoretical studies of heterometallic aggregates with a [Pt(2)(mu-S)(2)M] core (M = Hg, Au)

Inorg Chem. 2002 Dec 16;41(25):6838-45. doi: 10.1021/ic011181o.

Authors

Xingling Xu¹, S-W Audi Fong, Zhaohui Li, Zhi-Heng Loh, Feng Zhao, Jagadese J Vittal, William Henderson, Soo-Beng Khoo, T S Andy Hor

Affiliation

¹ Department of Chemistry, National University of Singapore, Singapore.

PMID: 12470082
DOI: 10.1021/ic011181o

Abstract

Novel electroactive multimetallic compounds based on the [Pt(2)(mu(2)-S)(2)M] core, viz. [Pt(2)(PPh(3))(4)(mu(3)-S)(2)HgFc]PF(6) (1) [Fc = (eta(5)-C(5)H(4))Fe(eta(5)-C(5)H(5))] and [Pt(2)(PPh(3))(4)(mu(3)-S)(2)Hg(2)Fc'](PF(6))(2) (2) [Fc' = Fe(eta(5)-C(5)H(4))(2)], have been synthesized under the guide of electrospray mass spectrometry. The electrochemistry of these ferrocene funtionalized compounds together with the reported [Pt(2)(PPh(3))(4)(mu(3)-S)(2)HgPPh(3)](PF(6))(2) (3), [Pt(2)(PPh(3))(4)(mu(2)-S)(mu(3)-S)HgPh]PF(6) (4), and [Pt(2)(PPh(3))(4)(mu(2)-S)(mu(3)-S)AuPPh(3)]PF(6) (5) have been investigated using cyclic voltammetry and DFT calculations. These results point to a prominent ligand-based oxidation.