Four new samarium(III) compounds based on different tetrazole-carboxylate ligands

作者：Wei, Bo; Yang, Zhan Yong; Xu, Duo; Sun, Chang Yu; Yuan, Jun Wei; Sun, Fan; Gu, Xiao Qing; Li, Qiao Yun^*; Yang, Gao Wen^*

来源：Journal of the Iranian Chemical Society, 2018, 15(2): 399-406.

DOI：10.1007/s13738-017-1240-8

• Tetrazole-carboxylate
• Counter anion
• Sm(III)
• Crystal structure
• Luminescence

Tetrazole-carboxylate ligands with both rigid tetrazole ring and flexible carboxylate group have a great potential in the construction of coordination architectures. Here, we report four new samarium(III) compounds based on four tetrazole- carboxylate ligands 5-(2-pyrimidyl) tetrazole-2-acetic acid (Hpmtza), 5-aminotetrazole-1-propanoic acid (Hatzpa), 5-(4-pyridyl) tetrazole-2-acetic acid (Hpytza), and 3,3-di(1H-tetrazol-5-yl) pentanedioic acid-(H(4)dtzpda), namely mononuclear [Sm(pmtza)(2)(H2O)(6)]Cl center dot 3H(2)O (1), binuclear-[Sm-2(atzpa)(4)(H2O)(8)](NO3)(2)center dot 2H(2)O (2), one-dimensional [Sm(pytza)(3)(H2O)(2)]center dot 2H(2)O (3) and [Sm(Hdtzpda)(H2O)(4)]center dot 4H(2)O (4). The effect of different counter anion -(ClO4-, Cl-, NO3-) on the formation of such compounds was also investigated. Furthermore, the luminescence of compounds 1-4 shows intraligand emission, whereas the characteristic peaks of Sm3+ may be overlapped.

• 出版日期2018-2
• 单位常熟理工学院