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Relevant academic research and scientific papers

Synthesis, characterization and electrochemical properties of bis(μ2-perchlorato)tricopper(ii) complexes derived from succinoyldihydrazones

Three new homotrimetallic copper(ii) complexes ([Cu3(L n)(ClO4)2(H2O)m] with H4Ln = H4L1 - H4L 3, m = 0, 3) have been synthesized from substituted succinoyldihydrazones (H4Ln) in methanol. The composition of the complexes has been established on the basis of data obtained from analytical and mass spectral studies and molecular weight determination in DMSO. The structure of the complexes has been discussed in the light of molar conductance, magnetic moment data and electronic, EPR, IR and FT-IR spectral studies. The molar conductance values for the complexes in the region of 1.2-1.7 Ω-1 cm2 mol-1 in DMSO indicate that the complexes are nonelectrolytes. The magnetic moment values for the complexes suggest considerable metal-metal interaction in the structural unit of the complexes. Copper centres have square planar and square pyramidal stereochemistry. The EPR parameters of complexes 1 and 3 indicate that the copper centre has a doublet ground state, while for complex 2, the ground state is a mixture of both doublet and quartet states. Electron transfer reactions of the complexes have been investigated by cyclic voltammetry. The Royal Society of Chemistry 2013.

Synthesis and characterization of heterotrinuclear bis(μ2- chlorido)dicopper (II) mono zinc(II) complexes derived from succinoyldihydrazones

Three new zinc (II)-copper (II) heterometallic trinuclear complexes of the composition [ZnCu2(Ln)(μ2-Cl) 2(H2O)6]×2H2O (H 4Ln = H4L1, H4L 2, H4L3) have been synthesized from substituted succinoyldihydrazones (H4Ln) in methanol medium. The composition of the complexes has been established on the basis of data obtained from analytical, mass spectral studies and molecular weight determinations in DMSO. The structure of the ligand H4L2 has been established by X-ray crystallography. The structure of the complexes has been discussed in the light of molar conductance, magnetic moment, electronic, EPR, IR and FT-IR spectral studies. The molar conductance values for the complexes fall in the region 1.2-1.7 ohm-1 cm2 mol-1 in DMSO solution indicating that all of these are non-electrolyte. The magnetic moment values suggest weak M-M interaction in the structural unit of the complexes. The dihydrazone ligand is present in enol form in all of the complexes. Copper centre has tetragonally distorted octahedral stereochemistry. The EPR parameters of the complexes indicate that the copper centre has doublet state as the ground state. The electron transfer reactions of the complexes have been investigated by cyclic voltammetry.

Dinuclear organotin(IV) complexes with bis-acyl-hydrazones containing flexible linker: Synthesis, spectroscopic investigation and crystal structure of dimethyl- and diphenyltin(IV) complexes with succinic dihydrazones

Four new dinuclear organotin(IV) complexes, (R2Sn) 2La [R = Me (1), R = Ph (2)] and (R2Sn) 2Lb [R = Me (3), R = Ph (4)], have been synthesized from the reaction of R2SnCl2/