基于5-羟基-2-吡啶羧酸的五个过渡金属配合物的合成、结构及荧光性质（英文）

Five Transition Metal Complexes with 5-Hydroxy-pyridine-2-carboxylic Acid:Syntheses, Crystal Structures and Luminescence Properties

以5-羟基-2-吡啶羧酸为配体，通过水热法与过渡金属盐合成了5个配合物，其分子式分别为[M（HL）：（i4：0）2]（M=Zn，1；Mn，2；Co，3；Ni，4），[Cu（HL）2]（5）。由元素分析，红外光谱，X-射线单晶衍射对化合物1。5的结构进行了表征。化合物1。5为单核结构的配合物，它们均通过氢键形成了三维超分子结构。测试了配合物1的光致发光及1-5的热稳定性。研究发现．配合物1发光归因于配体内的跃迁。

Five transition metal complexes based on the 5-hydroxy-pyridine-2-carboxylic acid （HzL） were synthesized under hydrothermal conditions, namely, [M（HL）2（H2O）2] （M=Zn, 1; Mn, 2; Co, 3; Ni, 4）, [Cu（HL）2] （5）. Compounds 1~5 were structurally characterized by the elemental analyses,infrared spectra, and single crystal X- ray diffractions. The structural analyses show that 1~5 are discrete mononuclear complexes, which are extended to form the 3D supramolecular frameworks by hydrogen bonds interactions. The solid-state photolumineseence of 1 and thermal properties of 1-5 were further explored, respectively. CCDC： 949732, 1; 949731, 2; 1056084, 3; 1056085, 4; 1056086, 5.