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[Page generation failure. The bibliography processor requires a browser with Javascript enabled.] Abstract: 1,2-disubstituted cyclopentadienyl diimine anions are examples of extended -systems that bind metals through the nitrogen atoms. Reaction of Cp2Mg with benzonitrile gives the product (1,2-C5H3(C(Ph)NH)2)CpMg(NCPh) (1) in 98% yield. In an analogous manner, the related complexes (1,2-C5H3(C(...  |
[Page generation failure. The bibliography processor requires a browser with Javascript enabled.] Catalytic dehydrocoupling of phosphines was investigated using the anionic zirconocene trihydride salts [Cp*Zr-2(mu-H)(3)Li](3) (1a) or [Cp*Zr-2(mu-H)(3)K(thf)(4)] (1b), and the metallocycles [CpTi(NPtBu3)(CH2)(4)] (6) and [Cp*M(NPtBu3)(CH2)(4)] (M = Ti 20, Zr 21) as catalyst precursors. Dehydrocoup... |
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[Page generation failure. The bibliography processor requires a browser with Javascript enabled.] Abstract: The complexes [CpTi(SCHCH2CH2S)]2 (Cp = Cp (3), MeCp (4)) are readily prepared from reaction of CpTi(SCH2CH2CH2S)Cl (Cp = Cp (1), MeCp (2)) with MeLi, AlMe3, or t-BuLi. Both compounds are centrosymmetric dimers in the solid state containing strained thiatitanacyclopropane rings. PMe3 cleav... |
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[Page generation failure. The bibliography processor requires a browser with Javascript enabled.] Abstract: The reaction of (Me3SiC5H4)2ZrCl2 with excess LiAlH4 affords the product 5. The structural characterization of 5 reveals two types of aggregation of the (Me3SiC5H4)2ZrH2 and AlH3 fragments formulated as [(Me3SiC5H4)2ZrH(-H)2]3Al and [(Me3SiC5H4)2ZrH(-H)2]2AlH. In this Zr3Al aggregate, thre... |
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[Page generation failure. The bibliography processor requires a browser with Javascript enabled.] Oxidation of Cr[N(SiMe3)(2)](2)(THF)(2) with iodine and dicumyl peroxide results in tetrahedral Cr(IV)Cr[N(SiMe3)(2)](2)I-2 and trigonal planar Cr(III) Cr[N(SiMe3)(2)](OCMe2Ph)(2), respectively; both complexes have been characterised by single-crystal X-ray diffraction, and both are active for ethyl... |
