title: Hydrothermal synthesis, structure, and luminescent properties of selected Zn(II)/Cd(II) coordination polymers constructed from 3,5-bis(x-pyridyl)-1,2,4-triazole (x = 3, 4).
abstract: Utilizing 3,5-bis(x-pyridyl)-1,2,4-triazole (x-Hpytz, x = 3; x = 4) as multidentate ligands, six novel coordination polymers with Zn(II) or Cd(II) metal ions were prepared: [Zn(3-pytz)(0.5)(OH)(0.5)Cl](n) (1, 1D ladder), {[Zn(3-Hpytz)(H(2)O)(4)] [Zn(3-Hpytz)(H(2)O)(3)·SO(4)]SO(4)·5H(2)O}(n) (2·5H(2)O, 1D chain), [Cd(3-Hpytz)(SO(4))](n) (3, 3D framework), {[Cd(3-Hyptz)SO(4)·3H(2)O]·2H(2)O}(n) (4·2H(2)O, 1D chain), [Zn(4-pytz)Cl](n) (5, 3D framework) and [Zn(2)(4-pytz)(SO(4))(OH)](n) (6, 3D framework). All compounds were obtained from hydrothermal reactions, with the exception of compound 4 which was obtained by solvent diffusion at room temperature. All compounds were characterized by FTIR, elemental analysis and TGA analysis and their structures were determined by X-ray diffraction. All compounds exhibited substantial thermal stability and showed photofluorescent properties that resulted from ligand π-π* transition.
authors.affiliation: Key Laboratory of Organic Synthesis of Jiangsu Province, School of Chemistry, Chemical Engineering and Materials Science, Soochow University (DuShuHu Campus), 199 Renai Road, Suzhou, 215123, China.
authors.forename: Qing-Feng
authors.initials: QF
authors.lastname: Xu
authors.forename: Jian-Feng
authors.initials: JF
authors.lastname: Ge
authors.forename: Qiu-Xuan
authors.initials: QX
authors.lastname: Zhou
authors.forename: Jian-Mei
authors.initials: JM
authors.lastname: Lu
authors.forename: Shun-Jun
authors.initials: SJ
authors.lastname: Ji
authors.forename: Li-Hua
authors.initials: LH
authors.lastname: Wang
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Xue-Ming
authors.initials: XM
authors.lastname: Jin
authors.forename: Bing
authors.initials: B
authors.lastname: Wu