Advances in Inorganic Chemistry, Vol. 44 - download pdf or read online

By A. G. Sykes

ISBN-10: 0120236443

ISBN-13: 9780120236442

Advances in Inorganic Chemistry offers well timed and informative summaries of the present development in quite a few topic components inside inorganic chemistry, starting from bioinorganic to reliable nation. This acclaimed serial beneficial properties reports written through specialists within the zone and is an crucial connection with complicated researchers. each one quantity of Advances in Inorganic Chemistry comprises an index, and every bankruptcy is absolutely referenced.

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Some multimetallic fullerene adducts. ORGANOMETALLIC COMPLEXES OF FULLERENES 27 tion, the main method of separation is HPLC. Distant-site multiple additions involve either two metal moieties that bind at diametrically opposite poles of the fullerene (para adducts) or six metal fragments that form an octahedral array around Cm. This contrasts with organic additions, which often result in regioisomeric mixtures of difficult-to-separate mono- to hexaadducts. Examples of para diadducts include those formed between c60 or C70 and Vaska’s compound.

II. Octahedral Clusters A. SYNTHESIS 1. Chromium Steigerwald et al. prepared the first octahedral chromium cluster [Cr6Te,(PEt3)6]by the reaction of either (C3H,)2Cr(PEt3)2or (2,4-dimethyl-C6H3)&rwith TePEt, and PEt3. The yield in the latter reaction GROUP 6 METAL CHALCOGENIDE CLUSTER COMPLEXES 47 FIG. 1. Structure of [CrGTc~(PEt3),J. was 38%(28)(Fig. 67 (average). TePEt3 Te + PEt3 Similar reactions have been used for the synthesis of [CO6Te@Et3)6] (301, [Ni9Te6(PEt3)81, and [NizoTe,8(PEt,)121 (31).

181, which is the first step in such a mechanism: For [C6,,{Pt(PEt3)2}6], Fagan trapped the dissociated metal fragment Pt(PEt,), by complexation with diphenylacetylene to give [Pt(PEt3),(q2C2Ph,)] (7). Similarly, 31P NMR studies carried out on the system [{Ir(CO)(PEt3),C1},(qz,~2'-C60)] (33) suggested that the following equilibria exist (Scheme 6). ) by addition of PR3 to the insoluble polymeric materials CEoM,(M = Pd or Pt, n = 1)[Eq. (19)l (25, 31). Attempts to further functionalize the fullerene cage have not proved successful.

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Advances in Inorganic Chemistry, Vol. 44 by A. G. Sykes

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