A set of new transition metal-based coordination complexes dependent upon Hpztza ligand (Hpztza=2-(5-(pyrazin-2-yl)-2H-tetrazol-2-yl) acetic acid)

• Published in: Journal of solid state chemistry Vol. 186; pp. 124 - 133
• Main Authors: Yang, Jie, Shen, Lei, Yang, Gao-Wen, Li, Qiao-Yun, Shen, Wei, Jin, Jian-Ning, Zhao, Jing-Jing, Dai, Jian
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.02.2012
• Subjects: ACETIC ACID; CARBOXYLIC ACIDS; COHERENT SCATTERING; CRYSTAL STRUCTURE; CRYSTALS; DIFFRACTION; EMISSION; Hpztza; Infrared radiation; INFRARED SPECTRA; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; LAYERS; LIGANDS; LUMINESCENCE; MONOCARBOXYLIC ACIDS; MONOCRYSTALS; Nickel; ORGANIC ACIDS; ORGANIC COMPOUNDS; PHOTOLUMINESCENCE; PHOTON EMISSION; POLYMERS; SCATTERING; Solid state; SOLIDS; SPECTRA; Transition metal; X-RAY DIFFRACTION; X-rays; Hpztza; Transition metal; Luminescence; Crystal structure
• ISSN: 0022-4596; 1095-726X
• DOI: 10.1016/j.jssc.2011.11.017

Reaction of MCl2·4H2O (M=Zn, Cd, Mn, Co, Ni ) with 2-(5-(pyrazin-2-yl)-2H-tetrazol-2-yl) acetic acid (Hpztza) yielded a set of new M(II)/pztza complexes, [Cd(pztza)2(H2O)6]·3H2O·(Hpztza) (1), [M(pztza)2(H2O)2] [M=Cd(2), Zn(7), Mn(9)], [Cd(pztza)2]·2(CH3OH) (3), [Co(pztza)2(H2O)2]·6H2O (4), [Co(pztza)(H2O)Cl] (6) and [M(pztza)2(H2O)2]·2H2O [M=Co(5), Zn(8), Ni(10)]. These compounds were structurally characterized by elemental analysis, IR spectroscopy and X-ray single-crystal diffraction. Complex 1 featured a mononuclear structure, complexes 4, 5, 7, 8, 10 showed 1D chains and complexes 2, 3, 6, 9 displayed 2D layer structures. Furthermore, the luminescence properties of 1–10 were investigated at room temperature in the solid state. Ten new coordination polymers with 2-(5-(pyrazin-2-yl)-2H-tetrazol-2-yl) acetic acid (Hpztza) ligand have been synthesized and their structures have been characterized. All of the complexes show photoluminescence at room temperature. [Display omitted] ► Ten novel transition metal-based coordination complexes with 2-(5-(pyrazin-2-yl)-2H-tetrazol-2-yl) acetic acid (Hpztza) are reported. ► Complexes 1–10 are described as mononuclear structure, 1D and 2D frameworks with diverse architecture. ► Six coordination complexes show emission at room temperature in the solid state.