86407-81-0Relevant articles and documents
NIOBIUM(III) COMPLEXES CONTAINING ACETYLENE, ISOCYANIDE, PHOSPHINE OR PHOSPHITE LIGANDS
Serrano, R.,Royo, P.
, p. 33 - 38 (1983)
The reduction of THF solutions of (η-C5H5)2NbCl2 with Na/Hg in the presence of various phosphines, phosphites, acetylenes or isocyanides gives complexes of the type (η-C5H5)2NbClL, where L = PMe2Ph, P(OMe)3, PhCCPh, PhCCH, HCCH, CNPh, or CNCy.A complex is also formed in solution from PEt3 but cannot be isolated as a solid.For L = P(OPh)3 no stable compound can be obtained.The IR, 1H and 13C NMR spectra of the complexes are described.