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Structure and magnetism of Co(II) complexes with bidentate heterocyclic ligand Hsalbim derived from benzimidazole |
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| Authors: | M. &Scaron ebová V. Jorí k,J. Monco?J. Ko?í &scaron ek,R. Bo?a |
| Affiliation: | a Department of Chemistry, FPV, University of SS Cyril and Methodius, Trnava, Slovakia b Institute of Inorganic Chemistry, Technology and Materials, FCHPT, Slovak University of Technology, SK-812 37 Bratislava, Slovakia c Institute of Physical Chemistry, FCHPT, Slovak University of Technology, 812 37 Bratislava, Slovakia |
| Abstract: | Two mononuclear Co(II) complexes based upon 2-(1H-benzimidazol-2-yl)phenol, abbreviation Hsalbim ligand, have been prepared and studied. The structure of Hsalbim and [Co(salbim)2] have been confirmed by X-ray structure analysis. The second cobalt(II) complex matches the formula [Co(salbim)2]·(Hsalbim)·MeOH assuming a co-crystallization of one neutral ligand. The electronic spectra are consistent with the tetrahedral pattern. Magnetic susceptibility measurements down to T = 2 K along with the magnetization data until B = 7 T show that the Co(II) complexes are high-spin with a considerable zero-field splitting of the 4B1(D2d) term: D/hc = 67 and 55 cm−1, respectively. |
| Keywords: | Co(II) complexes Magnetism Heterocyclic ligands Zero-field splitting |
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