Author
Jacques E. Guerchais
Bio: Jacques E. Guerchais is an academic researcher from University of Western Brittany. The author has contributed to research in topics: Crystal structure & Cyclopentadienyl complex. The author has an hindex of 15, co-authored 83 publications receiving 799 citations.
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TL;DR: The factor that controls the activity of these chelates is not fully understood but parameters such as redox potentials of the metal and electronic structure appear to be crucial as discussed by the authors.
499 citations
TL;DR: The reaction chemistry of nitriles with transition metal complexes is reviewed in this paper, where the authors survey data published during the period 1977-early 1994 on new reaction processes such as insertion into metal-hydrogen and carbon bonds, coupling between one nitrile and an unsaturated metal fragment, reduction to amines, attack by protic and aprotic nucleophiles and electrophilic attack as well as some catalytic transformations.
427 citations
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425 citations
TL;DR: In this article, a spectroscopic and structural investigation of binuclear silver(I) complexes supported by aliphatic phosphine ligands, namely [Ag(PCy3)(O2CCF3)]2 (1), [Ag2(μ-dcpm)2]X2 (X = CF3SO3, 2; PF6, 3; dcpm = bis(dicyclohexylphosphino)methane), and [Ag 2(mdcpm)(μ-O2ccF3] (4), is described.
Abstract: A spectroscopic and structural investigation of binuclear silver(I) complexes supported by aliphatic phosphine ligands, namely [Ag(PCy3)(O2CCF3)]2 (1), [Ag2(μ-dcpm)2]X2 (X = CF3SO3, 2; PF6, 3; dcpm = bis(dicyclohexylphosphino)methane), and [Ag2(μ-dcpm)(μ-O2CCF3)2] (4), is described. X-ray structural analyses of 1−4 reveal Ag−Ag separations of 3.095(1), 2.948 (av), 2.923 (av), and 2.8892(9) A, respectively. Due to the optical transparency of the phosphine ligands, the UV−vis absorption band at 261 nm in CH3CN for 2 and 3 is assigned to a 4dσ* → 5pσ transition originating from Ag(I)−Ag(I) interactions. The argentophilic nature of this band is verified by the resonance Raman spectrum of 2 with 273.9 nm excitation, where virtually all of the Raman intensity appears in the Ag−Ag stretch fundamental (80 cm-1) and overtone bands. Complexes 2 and 3 exhibit photoluminescence in the solid state at room temperature.
315 citations
310 citations