Synthesis, Characterization, and Electrochemical Properties of Mono-, Di-, and Trinuclear Transition Metal [60]Fullerene Complexes Containing Diphosphine Cis-Ph₂PCH=CHPPh₂ Ligand

Authors: Song, Li-Cheng; Su, Fu-Hai; Wang, Liang-Xing; Zhang, Xiao-Guang; Wang, Hu-Ting; Hu, Qing-Mei

Source: Journal of Nanoscience and Nanotechnology, Volume 7, Numbers 4-5, April/May 2007 , pp. 1395-1400(6)

Publisher: American Scientific Publishers

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Abstract:

New transition metal fullerene complexes containing cis-Ph₂PCH=CHPPh₂ (dppet) ligand have been investigated. The mononuclear complexes (η²-C₆₀)M(cis-dppet) (1, 2; M = Pd, Pt) were prepared by reaction of C₆₀ with M(dba)₂ (dba = dibenzylideneacetone) followed by treatment with cis-dppet, while the in situ prepared 1 and 2 reacted with M¹(PPh₃)₄ to afford dinuclear complexes (η² : η²-C₆₀)M(cis-dppet)M¹(PPh₃)₂ (3-6; M, M¹ = Pd, Pt). Similarly, trinuclear complexes (η² : η²-C₆₀) M(cis-dppet)M¹(dppr) (7-10; M, M¹ = Pd, Pt; dppr = (eta;⁵-Ph₂PC₅H₄)₂Ru) could be synthesized by reaction of the in situ prepared 3-6 with dppr. 1-10 were characterized by elemental analysis and spectroscopy. Cyclic voltammetric studies on 2 (M = Pt), 3 (M = Pd, M¹ = Pd) and 9 (M = Pt, M¹ = Pd) provided further evidence for the &eta²-coordination of C₆₀ to one metal fragment or two metal fragments in these complexes.

Keywords: PALLADIUM; PLATINUM; RUTHENIUM; METALLOFULLERENE; SYNTHESIS; ELECTROCHEMISTRY

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2007.319

Publication date: 2007-04-01

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