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Niobium-alkylidynes

A binuclear calixarene-supported niobium-alkylidyne complex ((42) Scheme 32) was prepared by deprotonation of a mononuclear alkylidene species (14).36 The chemistry of calixarene-supported species containing metal-carbon bonds has been reviewed.37... [Pg.248]

The reactions of alkylidenes (see Alkylidene) and alkylidynes (see Alkylidyne) of niobium and tantalum are typically characterized by nucleophilic alkylidene and alkylidyne ligands. Cp Ta(CH2SiMe3)2(=CHSiMe3) reacts with PhOH to give alkyl phenoxo Cp Ta(CH2SiMe3)3(OPh), and is hydrolyzed in the presence of a trace amount of H2O to give the 0x0 dialkyl derivative [Cp Ta(CH2SiMe3)20] . ... [Pg.2962]

See other pages where Niobium-alkylidynes is mentioned: [Pg.220]    [Pg.78]    [Pg.2961]    [Pg.174]    [Pg.187]   
See also in sourсe #XX -- [ Pg.223 ]



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