文献类型： 外文期刊

作者： Zhang, Ai-Qin ¹ ; Liu, Li-Long ¹ ;

作者机构： 1.Gansu Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Anim Husb Pasture & Green Agr Inst, Lanzhou 730070, Peoples R China

期刊名称：TRANSITION METAL CHEMISTRY （ 影响因子：1.588； 五年影响因子：1.234 ）

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收录情况： SCI

摘要： Two heterometallic cluster compounds and one monometallic cluster compound, namely [Ni9Co6(PMIDA)(6)(BTC)(2)(H2O)(12)]center dot 6H(2)O (1), [Co13Zn2(PMIDA)(6)(H2O)(18)]center dot 6NO(3)center dot 15H(2)O (2), and [Fe-15(PMIDA)(6)(BTC)(2)(H2O)(22)]center dot 38H(2)O (3), have been obtained under hydrothermal conditions using N-(phosphonomethyl)imino-diacetic acid (H(4)PMIDA) and 1,3,5-benzenetricarboxylate acid (H3BTC) as ligands, and structurally characterized by X-ray crystallography. Compound 1 exhibits a 3D open framework constructed from [Ni9Co6(PMIDA)(6)(H2O)(12)](6+) heteronuclear clusters and BTC3- ligands. Compounds 2 and 3 are both zero-dimensional polynuclear clusters, further extended into 3D supramolecular structures via hydrogen-bonding interactions. However, there are some differences in their crystal structures; compound 2 features an isolated spherical heteronuclear cation cluster based on PMIDA(4-) ligands, such that the NO3 (-) anions only balance the charge, whereas compound 3 is characterized as a neutral monometallic cluster incorporating two different types of organic acid ligands, namely PMIDA(4-) and BTC3-, and the two BTC3- ligands exhibit regular distribution in each cluster. The luminescence properties of all three compounds have been investigated at room temperature.