Spectral, thermal and DFT studies of novel nickel(II) complexes of 2-benzoylpyridine-N4-methyl-3- thiosemicarbazone: Crystal structure of a square planar azido-nickel(II) complex was written by Jayakumar, K.;Seena, E. B.;Kurup, M. R. Prathapachandra;Kaya, Savas;Serdaroglu, Goncagul;Suresh, E.;Marzouki, Riadh. And the article was included in Journal of Molecular Structure in 2022.Reference of 91-02-1 This article mentions the following:
Novel six Ni(II) complexes of an NNS donor 2-benzoylpyridine-N4-methyl-3- thiosemicarbazone(HL) were synthesized and characterized. Various physicochem. techniques are applied for the study of the coordination behavior of the thiosemicarbazone to the nickel center. In all the complexes, thiosemicarbazone is coordinated in the thiolate form. A four coordinated Ni(II) complex [NiLN3] is crystallized and its mol. and crystal structures are determined by single-crystal x-ray crystallog. Single-crystal XRD reveals that the complex got crystallized in the monoclinic space group P21/n and nickel(II) has a square planar environment. Intramol. hydrogen bonding interactions make the complex more rigid and in the crystal lattice, the intermol. hydrogen bonding interactions generate a supramol. 1 D chain. The chem. reactivity behavior of the HL and six Ni(II) complexes was evaluated with the CAM-B3LYP quantum chem. calculations The validity of electronic structure principles like Maximum Hardness, Min. Polarizability, and Min. Electrophilicity Principle in the study is discussed. In the experiment, the researchers used many compounds, for example, Phenyl(pyridin-2-yl)methanone (cas: 91-02-1Reference of 91-02-1).
Phenyl(pyridin-2-yl)methanone (cas: 91-02-1) belongs to pyridine derivatives. In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. Many analogues of pyridine are known where N is replaced by other heteroatoms . Substitution of one C–H in pyridine with a second N gives rise to the diazine heterocycles (C4H4N2), with the names pyridazine, pyrimidine, and pyrazine.Reference of 91-02-1