COMPLEXES OF LANTHANIDE PERCHLORATES WITH N,N,N?N?-TETRAMETHYL PYRIDINE DICARBOXAMIDE
- 1 March 1979
- journal article
- research article
- Published by Taylor & Francis in Journal of Coordination Chemistry
- Vol. 9 (1) , 31-35
- https://doi.org/10.1080/00958977908073098
Abstract
The synthesis and a study of the physical properties of lanthanide perchlorate complexes with N,N,N′,N′ Tetramethyl pyridine dicarboxamide of the general formula Ln(ClO4)3 (tmpd)3 where Ln=La-Yb and Y and tmpd=N,N,N′,N′ Tetramethyl pyridine dicarboxamide have been made. Conductance and infra-red data show that all the perchlorates are ionic. Infra-red spectral data suggest that the co-ordination of the ligand occurs through the oxygen atoms of the two amide moieties and through the pyridine nitrogen. Proton NMR spectra of the diamagnetic Y and La complexes confirm bonding through the pyridine nitrogen. Electronic spectral data for the Pr, Nd, Ho and Er complexes are also reported. A co-ordination number of nine has been assigned for all the complexes.Keywords
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