Synthesis and Crystal Structures of Copper(II) Complexes with Schiff Base Ligands
作者:Bon Kweon Koo
DOI:10.5012/jkcs.2015.59.1.103
日期:2015.2.20
Recently, dinuclear copper(II) complexes, [Cu2(L)2(CH3COO)](ClO4) (L = 2benzoylpyridine S-methyldithiocarbazate) and [Cu2L2(SO4)] (L = di-2-pyridyl ketone N(4),N(4)-(butane-1,4-diyl)thiosemicarbazone) in which sulfur atom from Schiff bases ligand together with acetate or sulfate oxygen atoms bridges the two copper(II) ions, respectively, were reported. Although many metal(II)-Schiff base complexes
Spectral studies and quantum chemical ab initio calculations for Copper(II) complexes of two heterocyclic aroylhydrazones
作者:S.R. Sheeja、Neema Ani Mangalam、M. Sithambaresan、M.R. Prathapachandra Kurup、Savaş Kaya、Goncagül Serdaroğlu
DOI:10.1016/j.molstruc.2021.131001
日期:2021.12
considerable covalent character is expected to the metal-ligand bonds and also, square pyramidal geometry is suggested for five coordinated complexes. Half field signals observed in the EPR spectra of [Cu(QCB)N3]2•H2O and [Cu2(BPB)2(μ-SO4)], in solidstate at 298 K and in frozen solution, confirm the dimeric structure for the complexes. The quantum chemical results obtained from the ab initio calculations
在本研究中,合成了喹啉-2-甲醛苯甲酰腙的五种铜 (II) 配合物和 2-苯甲酰吡啶苯甲酰腙的铜 (II) 配合物。通过元素分析、电导率测量和磁矩的测定,配制了配合物。通过红外光谱、电子光谱和 EPR 光谱对配合物进行了表征。从g值的趋势来看,金属-配体键具有相当大的共价特性,并且对于五个配位配合物建议采用方形金字塔几何形状。在 [Cu(QCB)N 3 ] 2 •H 2 O 和 [Cu 2 (BPB) 2 (μ-SO 4)],在 298 K 的固态和冷冻溶液中,确认复合物的二聚体结构。评估了从芳酰腙及其 Cu(II)-配合物的ab initio计算获得的量子化学结果,以解释观察到的化合物的反应趋势。
Synthesis, structural and in-vitro functional studies of half-sandwich platinum group metal complexes having various bonding modes of benzhydrazone derivative ligands
while rhodium and iridium complexes exhibited N∩N bonding mode with the migration of the N H proton to the adjacent C O (keto) group forming enol. Anti-bacterial activity studies (against Gram-positive and Gram-negative bacteria) as well as anti-cancer [HCT116 p53 wild type (p53+/+) and HCT116 p53 null (p53−/−)] were carried out for all the complexes as well as ligands where interestingly, ligand L2
Diversities in the chelation of aroylhydrazones towards cobalt(II) salts: Synthesis, spectral characterization, crystal structure and some theoretical studies
作者:Neema Ani Mangalam、M.R. Prathapachandra Kurup、Eringathodi Suresh、Savaş Kaya、Goncagül Serdaroğlu
DOI:10.1016/j.molstruc.2021.129978
日期:2021.5
Five cobaltcomplexes synthesized from two aroylhydrazones were characterized by elemental analyses, thermogravimetric analysis, molar conductivity, magnetic susceptibility measurements, IR and electronic spectra. Single crystal X-ray structure of one of the complex is also reported and it got crystallized in triclinic space group P1¯ and the crystalstructure shows a distorted octahedral geometry