Organometallic compounds characterization

R. W. Kiser, in Mass Spectroscopy of Organometallic Compounds, Characterization of Organometallic Compounds (M. Tsutsui, ed.). Part I, Interscience, New York (1969). 

Unfortunately, at present the information characterizing the properties of the active bond in polymerization catalysts is very scant. The analogy between the features of the active bonds in the propagation centers and those of the transition metal-carbon bond in individual organometallic compounds is sure to exist, but as in the initial form the latter do not show catalytic activity in olefin polymerization this analogy is restricted to its limits. 

Accounts of the preparation, properties, characterization by physical methods and use of representative inorganic and organometallic compounds of cadmium and mercury have been published.18 19... 

Vol. 21 Reilctance Spectroscopy. By Wesley Wm.Wendlandt and Harry G. Hecht Vol. 22 The Analytical Toxicology of Industrial Inorganic Poisons. By the late Morris B. Jacobs Vol. 23 The Formation and Properties of Precipitates. By Alan G.Walton Vol. 24 Kinetics in Analytical Chemistry. By Harry B. Mark, Jr. and Garry A. Rechnitz Vol. 25 Atomic Absorption Spectroscopy. Second Edition. By Morris Slavin Vol. 26 Characterization of Organometallic Compounds (in two parts). Edited by Minoru Tsutsui Vol. 27 Rock and Mineral Analysis. Second Edition. By Wesley M. Johnson and John A. Maxwell Vol. 28 The Analytical Chemistry of Nitrogen and Its Compounds (in two parts). Edited by C. A. Streuli and Philip R.Averell... 

In general, organolead compounds are well-characterized substances that are quite stable at room temperature. However, they are thermally the least stable of the organometallic compounds of group IV. Most organolead compounds are liable to severe decomposition on heating to 100-200 °C, but they are not explosive111. 

Organometallic Compounds. [VO(CH2SiMe3)3] is obtained when a petroleum solution of [V(CH2SiMe3)4] is passed through a cellulose column, or when VOCI3 is treated with less than the stoicheiometric amount of the trimethyl-silylmethyl Grignard. This pale-yellow compound, m.p. 75 °C, has been characterized by i.r. and n.m.r, spectra. 

The first weU-characterized organometallic compounds of the lanthanides or actinides were the tricyclopentadienides of various lanthanide ions S3mthesized by Birmingham and Wilkinson in 1954 (97—98). Anhydrous metal chlorides were reacted with sodium cyclopentadienide in tetrahydrofuran as follows ... 

The first organometallic compound of the transition metals to be characterized (1827) was Zeise s salt, K[(C2H4)PtCl3]-H20 (Fig. 18.1). It forms when K2[PtCl4] in aqueous ethanol is exposed to ethylene (ethene) a dimeric Pt—C2H4 complex with Cl bridges is also formed. In both species, the ethylene is bonded sideways to the platinum(II) center so that the two carbon atoms are equidistant from the metal. This is called the dihapto-or T]2 mode. A ligand such as an allyl radical with three adjacent carbons directly bonded to a metal atom would be trihapto- or t 3, and so on. 

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