Neutron and X-ray Diffraction Studies and DFT Calculations of Asymmetric Bis(silyl) Niobocene Hydrides

The first asymmetric bis(silyl) niobocene hydrides Cp2Nb(SiHMe2)H(SiXMe2) (2:  X = F (a), Cl (b), Br (c), I (d)), having interligand interactions Nb−H···Si−X, were prepared by selective halogenation of the Si−H bond in Cp2Nb(SiHMe2)2H. X-ray studies of 2b,c and a combined X-ray/neutron diffraction s...

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Veröffentlicht in:Organometallics 2004-06, Vol.23 (12), p.2845-2847
Hauptverfasser: Dorogov, Konstantin Yu, Dumont, Elise, Ho, Nam-Nhat, Churakov, Andrei V, Kuzmina, Lyudmila G, Poblet, Josep-Maria, Schultz, Arthur J, Howard, Judith A. K, Bau, Robert, Lledos, Agusti, Nikonov, Georgii I
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Sprache:eng
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Zusammenfassung:The first asymmetric bis(silyl) niobocene hydrides Cp2Nb(SiHMe2)H(SiXMe2) (2:  X = F (a), Cl (b), Br (c), I (d)), having interligand interactions Nb−H···Si−X, were prepared by selective halogenation of the Si−H bond in Cp2Nb(SiHMe2)2H. X-ray studies of 2b,c and a combined X-ray/neutron diffraction study of 2b establish a slightly stronger interaction of the niobium-bound hydride with the halosilyl ligand.
ISSN:0276-7333
1520-6041
DOI:10.1021/om034239a