By utilizing the well-known selective xanthine oxidase inhibitor topiroxostat, a new zinc(II) complex Zn(L)2(H2O)2 (1) [HL = 4-(3-(pyridine-4-yl)-1H-1,2,4-triazol-5-yl)picolinic acid] has been hydrothermally synthesized, involving in-situ ligand formation upon hydrolysis of topiroxostat. The complex has been structurally characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, powder X-ray diffraction, and single-crystal X-ray diffraction. X-ray structural analysis revealed that complex 1 is a N,O-chelating mononuclear Zn(II) complex. Complex 1 shows good thermal stability and exhibits photoluminescence in the solid state at room temperature. Moreover, complex 1 has been shown to be effective in the solvent-free ring-opening polymerization of ε-caprolactone without any co-catalyst or initiator.

中文翻译：

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托吡司他原位生成的具有 N,O-供体配体的锌 (II) 配合物的合成、表征、发光和催化性能

利用众所周知的选择性黄嘌呤氧化酶抑制剂托吡索坦，一种新型锌(II)络合物Zn(L)2（H2哦）2(1) [HL = 4-(3-(吡啶-4-基)-1H-1,2,4-三唑-5-基)吡啶甲酸]已通过水热合成，涉及原位托匹司他水解后形成配体。该配合物已通过元素分析、红外光谱、热重分析、粉末X射线衍射和单晶X射线衍射进行了结构表征。X射线结构分析表明配合物1是N,O螯合单核Zn(II)配合物。配合物1表现出良好的热稳定性，并且在室温下固态时表现出光致发光。此外，配合物 1 已被证明在无溶剂开环聚合中有效ε-己内酯，不含任何助催化剂或引发剂。