43089-09-4Relevant academic research and scientific papers
Synthesis, structural characterization, electrochemical studies and DFT calculations on nickel(II) complexes of N-picolinoyl-N′-benzothioylhydrazide and 5-(pyridine-4-yl)-2H-1,2,4-triazole-3-thione
Bharty,Kushawaha,Chaudhari,Dani,Maiti,Butcher
, p. 243 - 252 (2017/03/16)
Two Ni(II) complexes, [Ni(pbth)2] and [Ni(ptt)2(en)2] {Hpbth?=?N-picolinoyl-N′-benzothioylhydrazide, Hptt?=?5-(pyridine-4-yl)-2H-1,2,4-triazole-3-thione} have been synthesized and characterized by physico-chemical and spectroscopic methods. [Ni(pbth)2] contains a pair of N-picolinoyl-N′-benzothioylhydrazide ligands coordinated via their thione sulfur, pyridyl nitrogen and hydrazinic nitrogen atoms, forming two C2N2Ni and two CSN2Ni five-membered chelate rings. The intermediate compound 1-isonicotinoyl-3-thiosemicarbazide is converted to 5-(pyridine-4-yl)-2H-1,2,4-triazole-3-thione in the presence of ethanolic NaOH, giving the complex [Ni(ptt)2(en)2] in which the ptt ligands coordinate through their triazole ring nitrogen atoms, while four more nitrogens from two ethylenediamine ligands complete the octahedral structure. The crystal structures of the complexes involve various types of intermolecular extended hydrogen bonds, forming supramolecular frameworks. Cyclic voltammetry studies of both complexes show quasi-reversible redox behavior. Density Functional Theory electronic structure calculations corroborate our experimental findings.
Extraction and Spectrophotometric Determination of Osmium with N2-Benzoylthiobenzhydrazide
Gangopadhyay, S.,Gangopadhyay, P. K.,Shome, S. C.
, p. 87 - 88 (2007/10/02)
N2-Benzoylthiobenzhydrazide forms a chloroform extractable, 1:2 metal-ligand complex with osmium(VI).The optimal pH range for the extraction of the complex is 4.30 - 5.65 and the colour of the extract is stable for more than 12 hr.The extract f
