Summary
The reactions of niobium and tantalum pentaethoxides withtrans-cinnamic acid (HCA) and dihydrocinnamic acid (HDCA) were carried out in different stoichiometric ratios. The complexes of the type M(OEt)5−n(CA)n and M(OEt)5−n(DCA)n, (n=1, 2 or 3 and M=Nb or Ta) were obtained.
Infrared studies indicate that both acids act as monodentate and monofunctional ligands,i.e. only the hydroxyl oxygen takes part in bonding to the central metal atom. The corresponding tertiary butoxide derivatives [M(OBut)5−n(CA)n] and [M(OBut)5−n(DCA)n] (M=Nb or Ta and n=1, 2 or 3) were prepared by the alcohol-interchange technique.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. K. Narula, B. Singh, P. N. Kapoor and R. N. Kapoor,J. Indian Chem. Soc., LIX, 195 (1982).
D. C. Bradley, F. M. A. Halim and W. Wardlaw,J. Chem. Soc., 3450 (1950).
C. E. Holloway,J. Coord. Chem., 1, 253 (1972).
D. C. Bradley, W. Wardlaw and A. Whitely,J. Chem. Soc., 726 (1955).
D. C. Bradley, V. N. Chakravarti, A. K. Chatterjee and W. Wardlaw,J. Chem. Soc., 2381 (1956).
D. C. Bradley, B. N. Chakravarti and W. Wardlaw,J. Chem. Soc., 4439 (1956).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Narula, A.K., Singh, B., Kapoor, P.N. et al. Cinnamates of niobium(V) and tantalum(V). Transition Met Chem 8, 195–198 (1983). https://doi.org/10.1007/BF00620686
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00620686