Pyrazoles and imidazoles as ligands. Part XII: Metal (II) perchlorates and tetrafluoroborates containing 2‐methylimidazole as ligand
- 1 January 1972
- journal article
- research article
- Published by Wiley in Recueil des Travaux Chimiques des Pays-Bas
- Vol. 91 (5), 507-516
- https://doi.org/10.1002/recl.19720910502
Abstract
Several complexes of general formula M(2MIz)n(anion)2, with M = Mn, Fe, Co, Ni, Cu, Zn and Cd are reported. The anions are ClO−4 and BF−4, n = 4 or 6, and 2MIz stands for 2‐methylimidazole.The compounds are prepared from alcoholic solutions of the ligand and the metal salt in the presence of triethyl orthoformate.Structural conclusions are drawn from infrared spectra, ligand‐field spectra, X‐ray powder diagrams and paramagnetic resonance measurements.Depending upon the particular cation, the metal ions were found to be tetragonally (Mn, Fe, Cd), tetrahedrally (Co, Zn), square planar (Cu, Ni), or octahedrally (Cd) coordinated. In the tetragonal compounds the ClO−4 and BF−4 anions are very weakly coordinated to the metal ions. No anion coordination occurs in the remaining compounds.This publication has 15 references indexed in Scilit:
- Pyrazoles and imidazoles as ligands. X. electron paramagnetic resonance spectra of MnII in a tetragonal environment of four pyrazoles and two anionsInorganica Chimica Acta, 1971
- Pyrazoles and imidazoles as ligands. Part IX: Some adducts formed between Cu(II) salts and substituted pyrazolesRecueil des Travaux Chimiques des Pays-Bas, 1971
- Pyrazoles and imidazoles as ligands. Part IV. Ligand‐field spectra of tetragonal coordination compounds containing the ligand 3(5)‐methylpyrazoleRecueil des Travaux Chimiques des Pays-Bas, 1970
- Spectroscopic studies of substituted imidazole complexes. I. Some complexes of 2-methylimidazoleInorganica Chimica Acta, 1969
- Pyrazoles and imidazoles as ligands. II. Coordination compounds of N-methyl imidazole with metal perchlorates and tetrafluoroboratesInorganica Chimica Acta, 1969
- Spectroscopic studies of substituted imidazole complexes. II. N-methylimidazole complexes of divalent cobalt, nickel, copper and zincInorganica Chimica Acta, 1969
- Pyrazoles and imidazoles as ligands: Part I. Some simple metal(II) perchlorates and tetrafluoroborates solvated by neutral pyrazole and imidazoleRecueil des Travaux Chimiques des Pays-Bas, 1969
- Complexes with ligands containing nitrile groups. Part IX . Magnetic measurements on solid methyl‐cyanide solvatesRecueil des Travaux Chimiques des Pays-Bas, 1969
- A semi‐empirical energy‐level diagram for octahedral, Nickel(II) ComplexesRecueil des Travaux Chimiques des Pays-Bas, 1968
- Syntheses of coordination compounds by dehydrationInorganic and Nuclear Chemistry Letters, 1967