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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.


Papers
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TL;DR: In this article, the reactions of a C4 cut of hydrocarbons containing buta-1, 3-diene, buty-1-ne and vinylacetylene gave the complexes [W(S2CN(C2H5)2)2(CO)3] and [MoO(S 2CN(c 2H5),C 2C2C5,CO)2] (3a, 3b), respectively.

4 citations

Journal ArticleDOI
TL;DR: In this article, the authors compared the 199 Hg NMR and 57 Fe Mossbauer spectra of iron-mercury bounded complexes with analogous molybdenum and tungsten compounds and discussed the polarization of the metal-metal bonds.

3 citations

Journal ArticleDOI
TL;DR: In this article, a radical cation, transiently produced in a single step two-electron transfer, is shown to be the reactive species in a substitution process which can be oxidatively-induced or catalysed via an electron transfer chain mechanism.
Abstract: A radical cation, transiently produced in a single step two-electron transfer, is shown to be the reactive species in a substitution process which can be oxidatively-induced or catalysed via an electron transfer chain mechanism.

3 citations

Journal ArticleDOI
TL;DR: In this paper, the nature of cobalt-containing metallacycles has been determined from an X-ray crystal-structure study of the product with R = Me and R′ = R″ = CF 3, which crystallizes in space group P 2 1 / n with a = 25.699(6), b = 9.003(9), c = 13.093(4), β = 94.47(2)° and Z = 4.045.

3 citations

Journal ArticleDOI
TL;DR: The ethenylidenediiron complex [C5H5Fe(CO)]2 (μ-CO)(μ-CCHCH(CN)H) as mentioned in this paper reacts with the nitrile substituted alkyne HCCCn to give high yield of [(C 5H5)Fe[C5]Fe[CO] 2 (μ]-CO)

3 citations


Cited by
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Journal ArticleDOI
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

Journal ArticleDOI
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

Journal ArticleDOI
TL;DR: In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website as discussed by the authors, in case of legitimate complaints the material will be removed.
Abstract: Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible.

425 citations

Journal ArticleDOI
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