CRYSTAL STRUCTURE OF A NEW TRANSITION METAL-ORGANIC Zn(II) COMPLEX

Zn(II) complex 2-mercaptonicotinic acid crystal structure coordination

CRYSTAL STRUCTURE OF 6-FERROCENYL-3-PHENYL-[1,2,4]TRIAZOLO[3,4-b][1,3,4]THIADIAZOLE, ИССЛЕДОВАНИЕ СТРУКТУРЫ И ЭНЕРГЕТИКИ βb-ДИКЕТОНАТОВ. XVIII. МОЛЕКУЛЯРНОЕ СТРОЕНИЕ трис-АЦЕТИЛАЦЕТОНАТОВ ХРОМА И КОБАЛЬТА ПО ДАННЫМ КВАНТОВО-ХИМИЧЕСКИХ РАСЧЕТОВ И МЕТОДА ГАЗОВОЙ ЭЛЕКТРОНОГРАФИИ, ...

Complex 1 forms a 1D chain by O—HᄷO hydrogen bonds from free-water, while the 2D layer structure is formed by C—HᄷO hydrogen bonds through the L ligand of adjacent chains. <...> These compounds further result in a 3D network structure by the intermolecular ᄷ stacking interaction of the neighbouring layers. <...> Coordination compounds have received more and more attention [ 2—4] because of their perfect framework and admirable properties such as catalysis, anticancer activity, etc. [ 5—9 ]. <...> The molecular engineering of transition-metal-based coordination compounds with an extended network is a rapidly growing area of research because of their functional properties and potential applications [ 10 ]. <...> In this habit, the use of heteronuclear polydentate and polynucleating ligands is of particular interest because they can lead to the formation of extended systems with unusual electronic and optical properties [ 11, 12 ]. <...> Compared to the vast literature on the synthesis of coordination polymers and metal-organic frameworks (MOFs) based on N- and O-coordinating ligands [ 13, 14 ], reports focusing on complexes of bifunction S- and O-donors are rather scarce [ 15 ]. <...> In this respect, it has to be mentioned that even if many examples of bridging S—M—O bonds have been reported in the literature, most of them imply a bidentate bridging coordinate mode [ 16 ]. <...> Our laboratory has reported a series of transition metal compounds with the phenanthroline ligand partially embedded in the adjacent DNA base pairs, making the conformation of DNA change [ 17, 18 ]. <...> Zinc is one of the most important metals in biological systems, which is a cation of special relevance. <...> Herein, in this paper we selected L, phen as a ligand and transition metal Zn(II) to synthesize the [Zn2(phen)2]L4 Œ3H2O(1) complex with two coordination modes of L and phen ligands, intramolecular ᄷ stacking, and the intermolecular hydrogen bond weak interaction were observed. <...> Along with stirring, the pH value was adjusted to 7.53 using a HCl solution (1 M), and then the mixture continuously reacted at room temperature. <...> It was mixed constantly for yet another 4 h; the final pH value of the solution was 7.38, and then it was slowly evaporated at normal <...>

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