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- W2074149043 abstract "Methylmethoxycarben-pentacarbonyl-chrom(0), Phenylmethoxycarben-pentacarbonyl-chrom (0) und Methylmethoxycarben-pentacarbonyl-wolfram(0) reagieren mit Thiolen gemäß unter nucleophiler Substitution der Methoxygruppe zu den entsprechenden Mercaptocarben-pentacarbonyl-Komplexen von Chrom(0) und Wolfram(0), (CO)5MC(SR')R (1–7). Die Lage der jeweils kurzwelligsten vCO-Bande, die Energiebarriere für die Rotation um die Carbenkohlenstoffatom-Schwefel-Bindung, die Ionisierungspotentiale und die Dipolmomente der Mercaptocarben-Komplexe beweisen eine Mittelstellung der Mercaptocarben-Liganden zwischen den Alkoxy- und Aminocarben-Liganden hinsichtlich ihrer effektiven Ladungsübertragungsfähigkeit Ligand → Metall → CO. Transition Metal Carbene Complexes, XXXVI. Thiocarbenepentacarbonyl Complexes of Chromium(0) and Tungsten(0) (Methylmethoxycarbene)pentacarbonylchromium(0), (phenylmethoxycarbene)pentacarbonylchromium(0), and (methylmethoxycarbene)pentacarbonyltungsten(0) react with thiols as follows: Nucleophilic substitution of the methoxy group gives the corresponding thiocarbenepentacarbonyl complexes of chromium and tungsten, (CO)5MC(SR')R (1–7). The position of the vCO-bands of shortest wavelength, the energy barrier for rotation about the carbene carbonsulphur bond, the ionisation potentials, and the dipole moments of the thiocarbene complexes demonstrate that, in respect of their effective ligand→metal→CO charge transfer capability, the thiocarbene ligands lie between the alkoxy- and aminocarbene ligands." @default.
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- W2074149043 date "1972-01-01" @default.
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- W2074149043 title "Übergangsmetall‐Carben‐Komplexe, XXXVI. Mercaptocarben‐pentacarbonyl‐Komplexe von Chrom(0) und Wolfram(0)" @default.
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- W2074149043 doi "https://doi.org/10.1002/cber.19721050118" @default.
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