Please use this identifier to cite or link to this item:
https://doi.org/10.1021/om010998m
DC Field | Value | |
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dc.title | Syntheses, structures, and electrochemistry of polynuclear CuI, AgI, and PtII complexes bearing ferrocenyl group | |
dc.contributor.author | Yip, J.H.K. | |
dc.contributor.author | Wu, J. | |
dc.contributor.author | Wong, K.-Y. | |
dc.contributor.author | Yeung, K.-W. | |
dc.contributor.author | Vittal, J.J. | |
dc.date.accessioned | 2014-10-16T08:42:53Z | |
dc.date.available | 2014-10-16T08:42:53Z | |
dc.date.issued | 2002-04-14 | |
dc.identifier.citation | Yip, 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.issn | 02767333 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/95020 | |
dc.description.abstract | Three 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.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/om010998m | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1021/om010998m | |
dc.description.sourcetitle | Organometallics | |
dc.description.volume | 21 | |
dc.description.issue | 8 | |
dc.description.page | 1612-1621 | |
dc.description.coden | ORGND | |
dc.identifier.isiut | 000175025900015 | |
Appears in Collections: | Staff Publications |
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