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| Abstract: | Five copper(II) complexes [CuLCl]2·CuCl2·4H2O (1), [CuLOAc] (2), [CuLNO3]2 (3), [CuLN3] (4) and [CuLNCS]·3/2H2O (5) of di-2-pyridyl ketone-N4-phenyl-3-semicarbazone (HL) were synthesized and characterized by elemental analyses and electronic, infrared and EPR spectral techniques. In all these complexes the semicarbazone undergoes deprotonation and coordinates through enolate oxygen, azomethine and pyridyl nitrogen atoms. All the complexes are EPR active due to the presence of an unpaired electron. EPR spectra of all the complexes in DMF at 77K suggest axial symmetry and the presence of half field signals for the complexes 1 and 3 indicates dimeric structures |
| Description: | Spectrochimica Acta Part A 76 (2010) 322–327 doi:10.1016/j.saa.2010.03.011 |
| URI: | http://dyuthi.cusat.ac.in/purl/4001 |
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| Copper(II) complexes derived from di-2-pyridyl.pdf | (366.4Kb) |
| Abstract: | A new semicarbazone, HL has been synthesized from quinoline-2-carboxaldehyde and N4-phenyl-3- semicarbazide and structurally and spectrochemically characterized. 1H NMR, 13C NMR, IR and electronic spectra of the compound are studied. The existence of keto form in the solid state is supported by the crystal structure and IR data. The compound crystallizes into an orthorhombic space group P212121. Intra and intermolecular hydrogen bonding interactions facilitates unit cell packing in the crystal lattice |
| Description: | J Chem Crystallogr (2010) 40:927–932 DOI 10.1007/s10870-010-9765-z |
| URI: | http://dyuthi.cusat.ac.in/purl/4000 |
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| Synthesis, Spec ... ral Studies of a Novel.pdf | (464.0Kb) |
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