title: Temperature-controlled syntheses of substituted 1,2,4-triazolelead(II) complexes: active lone pair and N-H...X (X = Cl, Br, I) hydrogen bonds.
abstract: Three isomorphous lead(II) complexes with a new {N(3)SX}-coordinated (X = Cl, Br, I) mode have been synthesized and characterized by X-ray diffraction. The structural analyses reveal that the coordination environment around the center metal is distinctly influenced by the stereochemical 6s(2) lone pair and N-H...X hydrogen bonds. Additionally, doubly deprotonated trzS(2-) (HtrzSH = 1,2,4-triazole-3-thiol) generated in situ via deamination and dehydrazination of ahtrzS(-) (ahtrzSH = 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole) was first observed in a semiconducting three-dimensional coordination network at higher reaction temperature.
authors.affiliation: The State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China.
authors.forename: Jian-Kai
authors.initials: JK
authors.lastname: Cheng
authors.forename: Jian
authors.initials: J
authors.lastname: Zhang
authors.forename: Pei-Xiu
authors.initials: PX
authors.lastname: Yin
authors.forename: Qi-Pu
authors.initials: QP
authors.lastname: Lin
authors.forename: Zhao-Ji
authors.initials: ZJ
authors.lastname: Li
authors.forename: Yuan-Gen
authors.initials: YG
authors.lastname: Yao