Please use this identifier to cite or link to this item: https://doi.org/10.1021/om010998m
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dc.titleSyntheses, structures, and electrochemistry of polynuclear CuI, AgI, and PtII complexes bearing ferrocenyl group
dc.contributor.authorYip, J.H.K.
dc.contributor.authorWu, J.
dc.contributor.authorWong, K.-Y.
dc.contributor.authorYeung, K.-W.
dc.contributor.authorVittal, J.J.
dc.date.accessioned2014-10-16T08:42:53Z
dc.date.available2014-10-16T08:42:53Z
dc.date.issued2002-04-14
dc.identifier.citationYip, J.H.K., Wu, J., Wong, K.-Y., Yeung, K.-W., Vittal, J.J. (2002-04-14). Syntheses, structures, and electrochemistry of polynuclear CuI, AgI, and PtII complexes bearing ferrocenyl group. Organometallics 21 (8) : 1612-1621. ScholarBank@NUS Repository. https://doi.org/10.1021/om010998m
dc.identifier.issn02767333
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/95020
dc.description.abstractThree polynuclear complexes, [Pt2 II(dppm)2(μ-η1:η 1-HC=CFc)Cl2] (1), [AgI 3(dppm)3(μ3-η1 C≡CFc)]·2CF3SO3 (2·2CF3SO3), and [Cu3 I(dppm)3(μ3-η1 -C≡CFc)2]·PF6 (3·PF6), were synthesized and characterized using single-crystal X-ray diffraction, UV-vis spectroscopy, and voltammetry (dppm = bis(diphenylphosphino)methane; Fc = ferrocenyl). Compound 1 is an A-frame complex in which two PtII ions are bridged by two dppm and one ethynylferrocene. Both 2·2CF3SO3 and 3·PF6 are composed of trimetallic Ag3 I and Cu3 I cores bridged by three dppm and capped with one and two ferrocenylacetylides, respectively. All complexes exhibit reversible Fc oxidation in their cyclic voltammograms (CV), ranging from -48 ± 10 to 235 ± 10 mV vs Ag/AgNO3 (0.1 M). The reduction potential difference between silver and copper complexes is mostly due to intramoleuclar. electrostatic interactions. A weak intervalence charge-transfer transition at 1250 nm arising from the mixed-valence 32+ is observed in the solution near-infrared absorption spectrum of a mixture of 3·PF6 and ferrocenium hexafluo-rophosphate (Cp2FePF6). Cyclic and differential pulse volatmmograms of 3·PF6 show two reversible Fc oxidations separated by 110 ± 14 mV, giving a comproportionation constant Kc of 77 ± 30. The stability of the mixed-valence complex 32+ arises mainly from the reduction of electrostatic repulsion and statistical distribution.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/om010998m
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.doi10.1021/om010998m
dc.description.sourcetitleOrganometallics
dc.description.volume21
dc.description.issue8
dc.description.page1612-1621
dc.description.codenORGND
dc.identifier.isiut000175025900015
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