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Studies on Co(II) and Co(III) complexes of di-2-pyridyl ketone N(4)-cyclohexyl and N(4)-phenyl thiosemicarbazones |
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| Authors: | V Suni MR Prathapachandra Kurup Munirathinam Nethaji |
| Institution: | aDepartment of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, Kerala, India bDepartment of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India |
| Abstract: | Six new Co(II) and Co(III) complexes (1–6) of di-2-pyridyl ketone N(4)-cyclohexyl thiosemicarbazone (HL1) and di-2-pyridyl ketoneN(4)-phenyl thiosemicarbazone (HL2) have been synthesized and spectrochemically characterized. HL1 is newly synthesized and has been structurally characterized by single crystal X-ray diffraction studies, while HL2 has been previously reported. HL1 crystallizes into a monoclinic lattice with the space group P21. The complexes are characterized by magnetic, EPR, NMR and other spectroscopic studies. The EPR spectra of the paramagnetic complexes reveal axial features with eight hyperfine lines clearly resolved in the perpendicular region. |
| Keywords: | Di-2-pyridyl ketone Thiosemicarbazone Co(II) complexes Co(III) complexes EPR Crystal structure |
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