Carbonylniobium Chemistry, IV Derivatives of η5 -C5H5Nb(CO)4 with Tridentate Phosphines

Martin Hoch, Dieter Rehder
1983 Zeitschrift für Naturforschung. B, A journal of chemical sciences  
The photo-induced reaction between CpNb(CO)4 and Ph2P(CH2)2PR(CH2)2PPh2 (L; R = Ph, Cy) yields the chelated five-membered ring complexes cis-[CpNb(CO)2L] (two isomers in the case of R = Cy). The uncordinated PPh2 group reacts with CpNb(CO)3THF to form CpNb(CO)2(μ-L)CpNb(CO)3. IR, 31P and 93Nb NMR spectra are discussed and compared with corresponding data of the analogous vanadium complexes.
doi:10.1515/znb-1983-0409 fatcat:smwygyscqjcuxkawbtr24s67zm