Journal of organometallic chemistry

First amido-functionalized niobium and tantalum complexes of the ansa-structural type: synthesis and photochemical Si N bond cleavage

WA Herrmann, W Baratta

Index: Herrmann, Wolfgang A.; Baratta, Walter Journal of Organometallic Chemistry, 1996 , vol. 506, # 1-2 p. 357 - 361

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Abstract

Niobium (V) and tantalum (V) amides [η5-C5H4)-Si (CH3) 2-NR] M [N (CH3) 2] 3 (R= C6H5) containing chelate-type C, N-Ligands are available in 45%(M= Nb) and 60%(M= Ta) isolated yield, respectively, from the homoleptic amides M [N (CH3) 2] 5 and the N- functionalized cyclopentadiene C5H5-Si (CH3) 2-NHR by double amine elimination. The niobium and tantalum derivatives undergo an unprecedented photo-induced ...