TY - JOUR
T1 - Pyrazoles and imidazoles as ligands. X. electron paramagnetic resonance spectra of MnII in a tetragonal environment of four pyrazoles and two anions
AU - Dowsing, R.D.
AU - Nieuwenhuijse, B.
AU - Reedijk, J.
PY - 1971
Y1 - 1971
N2 - Electron Paramagnetic Resonance Spectra have been recorded for some compounds of the type Mn(ligand)4- (anion)2, with pyrazole and 3(5)-methyl pyrazole as the ligands, and Cl−, Br−, I−, and NO3−, as the anions.
The spectra show absorptions far from geff=2 for all compounds at both X- and Q-band frequencies. these spectra can be interpreted on the basis of a slightly distorted D4h symmetry for S=5/2, with D= 0.05–1.5 cm−1 and λ (being equal to E/D)=0.01–0.1
The different values of the parameters for the several compounds can be explained by differences in the axial ligand-field strengths.
AB - Electron Paramagnetic Resonance Spectra have been recorded for some compounds of the type Mn(ligand)4- (anion)2, with pyrazole and 3(5)-methyl pyrazole as the ligands, and Cl−, Br−, I−, and NO3−, as the anions.
The spectra show absorptions far from geff=2 for all compounds at both X- and Q-band frequencies. these spectra can be interpreted on the basis of a slightly distorted D4h symmetry for S=5/2, with D= 0.05–1.5 cm−1 and λ (being equal to E/D)=0.01–0.1
The different values of the parameters for the several compounds can be explained by differences in the axial ligand-field strengths.
U2 - 10.1016/S0020-1693(00)95933-4
DO - 10.1016/S0020-1693(00)95933-4
M3 - Article
SN - 0020-1693
VL - 5
SP - 301
EP - 304
JO - Inorganica chimica acta
JF - Inorganica chimica acta
ER -