Synthesis, structures and luminescent properties of Ca(II), Sr(II) and Pb(II) coordination compounds based on new flexible ligand 5-(2-pyrazinyl)tetrazole-2-acetic acid

Reactions of Hpztza (Hpztza = 5-(2-pyrazinyl)tetrazole-2-acetic acid) with CaCl 2 , SrCl 2 or Pb(NO 3) 2 with the presence of KOH under hydrothermal condition, produced three new coordination compounds, [M(pztza) 2(H 2O) 2][M = Ca ( 1), M = Sr ( 2)] and [Pb(pztza) 2]·H 2O ( 3). These compounds were...

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Published in:Inorganic chemistry communications 2011-06, Vol.14 (6), p.843-847
Main Authors: Li, Qiao-Yun, Zhou, Feng, Zhai, Chun, Shen, Lei, Tang, Xiao-Yan, Yang, Jie, Yang, Gao-Wen, Miao, Zhu-Feng, Jin, Jian-Ning, Shen, Wei
Format: Article
Language:English
Subjects:
5-(2-pyrazinyl)tetrazole-2-acetic acid
Ca(II)
Crystal structure
Luminescence
Pb(II)
Sr(II)
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Summary:Reactions of Hpztza (Hpztza = 5-(2-pyrazinyl)tetrazole-2-acetic acid) with CaCl 2 , SrCl 2 or Pb(NO 3) 2 with the presence of KOH under hydrothermal condition, produced three new coordination compounds, [M(pztza) 2(H 2O) 2][M = Ca ( 1), M = Sr ( 2)] and [Pb(pztza) 2]·H 2O ( 3). These compounds were structurally characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. Compounds 1– 2 display zigzag chain structure while 3 features a linear chain structure. Furthermore, the luminescence properties of 1– 3 were investigated at room temperature in the solid state. The photoluminescent mechanism of 1– 3 is tentatively attributed to an intraligand emission state. [Display omitted] ► Reactions of Hpztza (Hpztza = 5-(2-pyrazinyl)tetrazole-2-acetic acid) with CaCl 2, SrCl 2 or Pb(NO 3) 2 under hydrothermal conditions, produced three new coordination compounds, [M(pztza) 2(H 2O) 2][M=Ca( 1), M=Sr( 2)]and [Pb(pztza) 2]·H 2O ( 3). ► These compounds were structurally characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. ► Compounds 1– 3 display 1D structures. ► Furthermore, the luminescence properties of 1– 3 were investigated at room temperature in the solid state.
ISSN:1387-7003
1879-0259
DOI:10.1016/j.inoche.2011.03.004