Beiträge zur Chemie der Alkylverbindungen von Übergangsmetallen. 52. Darstellung,Charakterisierung und Reaktionen von (C5H5)3Ce · THF und Na[Ce(C5H5)4] · THF |
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| Authors: | K. Jacob M. Glanz K. Tittes K.-H. Thiele |
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| Abstract: | Contributions to the Chemistry of Organo Transition Metal Compounds. 52. Preparation, Characterization, and Reactions of (C5H5)3Ce · THF and Na[Ce(C5H5)4] · THF (C5H5)3 · THF ( I ) was synthesized in a simple manner by reaction of (NH4)2[Ce(NO3)6] with C5H5Na. With excess C5H5Na the complex Na[Ce(C5H5)4] · THF ( II ) could be obtained. In addition of cyclovoltammetric and polarographic measurements it was tried without success to transfer I and II into organocerium( IV ) compounds by means of different oxidizing agents. II reacts with I2 and (C6H5)3CCl forming Na[(C5H5)3CeI] · THF or Na[(C5H5)2CeI2] · 4 THF and I besides of (C6H5)3CCl respectively. At interaction of I with Co(acac)3 the cobalticinium salt [(C5H5)2Co][C5H5Ce(acac)3] is formed. The compounds obtained were characterized by elementary analysis, hydrolysis products, magnetic moments, i.r., 1H-n.m.r. und u.v.-vis spectra, and measurements of electric conductivity. |
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