14534-93-1Relevant articles and documents
Synthesis, structure and electrochemistry behavior of a cobalt(III) compound with azide and methyl 2-pyridyl ketone semicarbazone ligands
Shaabani, Behrouz,Khandar, Ali Akbar,Mahmoudi, Farzaneh,Balula, Salete S.,Cunha-Silva, Luís
, p. 55 - 61 (2013)
An unprecedented cobalt(III) compound with methyl 2-pyridyl ketone semicarbazone (HL) and the auxiliary azide ligand, [Co(L)2] [Co(L)(N3)3] (1) was synthesized and further characterized crystallographically and spectroscopically. Compound 1 crystallizes in the triclinic system and space group of P-1 and its structure consists of two mononuclear crystallographic units with metal chromophore comprising two cobalt(III) centers revealing distorted octahedral geometries and formed by distinct ligands in the inner coordination spheres. Interestingly, compound 1 represents the first complex formed by two distinct mononuclear units involving this ligand. As consequence of various donor and acceptor groups in both crystallographic units, there are several strong N-H?N and N-H?O hydrogen bonding interactions interconnecting adjacent moieties, ultimately leading to a three-dimensional supramolecular network. Furthermore, the electrochemical behavior of the HL and compound 1 were investigated.
Novel binuclear Cu(II) complexes combining a semicarbazone Schiff base with distinct bridging ligands: Structure and antimicrobial activity
Shaabani, Behrouz,Khandar, Ali Akbar,Mahmoudi, Farzaneh,Maestro, Miguel Anxo,Balula, Salete S.,Cunha-Silva, Luís
, p. 118 - 126 (2013)
The Schiff base methyl 2-pyridyl ketone semicarbazone (HL) was prepared from the condensation of methyl 2-pyridyl ketone and semicarbazide, and used in the synthesis of a series of novel binuclear Cu(II) complexes with three distinct bridging ligands: [Cu(L)(μ1,1-N3)]2 (1), [Cu(L)(μS,N-SCN)]2 (2) and [Cu(L)(Cl)] 2 (3). The compounds were characterized by elemental analysis, IR and UV-Vis spectroscopy, and their solid-state structures have been established by single-crystal X-ray diffraction revealing the first binuclear complexes with the HL ligand. Supramolecular interactions invoving the adjacent complexes were studied in detail. The antimicrobial activity of HL and the complexes 1-3 was further investigated against the bacteria Bacillus subtilis, Staphylococcus aureus, Escherichia coli and Erwinia carotovora and fungals Candida kefyr, Candida krusei and Aspergillus niger, with the complex 3 demonstrating enhanced activity relatively to the free ligand and remaining complexes.
Microwave assisted synthesis, characterization and antimicrobial studies of unsymmetric imine complexes of organotitanium(IV) and organozirconium(IV)
Poonia, Kavita,Swami, Monika,Chaudhary, Ashu,Singh
body text, p. 996 - 1003 (2009/02/06)
A new class of uasymmetrical organotitaniuim(IV) and organozirconium(IV) complexes of biologically potent iigands derived from heterocyclic ketones and semicarbazide hydrochloride and 2-hydroxy-N-pheny) benzamide have been prepared by the microwave irradiations. The ligands act in monobasic bidentate manner with N∩OH and O∩OH as donor systems. The ligands and the resulting complexes of the type Cp2M(O∩O) (N∩O) (where M represents titanium or zirconium) are characterized by the elemental analysis, conductance measurements, molecular weight determinations and spectral studies. On the basis of the electronic, IR, 1H NMR and 13C NMR spectral studies, octahedral geometry has been proposed for the resulting complexes. The isolated products are coloured solids, soluble in methanol, DMF, DMSO and THF. A comparative study has been made between microwave assisted synthesis and the thermal synthesis. All the complexes and their parent ligands have been screened against a number of microbes and discussed with positive findings.
