Significant Surface Modification of Polyoxometalate by Smart Silver-tetrazolate Units
Significant Surface Modification of Polyoxometalate by Smart Silver-tetrazolate Units
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DOI：
10.1021/cg2013396
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发表时间：
2012-01
影响因子：
3.8
通讯作者：
Jingquan Sha;Li-Ye Liang;Jingwen Sun;A. Tian;Pengfei Yan;Guangming Li;Cheng Wang
中科院分区：
文献类型：
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作者：
Jingquan Sha;Li-Ye Liang;Jingwen Sun;A. Tian;Pengfei Yan;Guangming Li;Cheng Wang
合成了两个有趣的多氧六环酸（POM）和银四唑亚基的杂化物H[Ag 11（pytz）6（H2O）3（P2 W18 O 62）]·H2O（1）和H[Ag 17（pytz）12（H2O）6（PMo 12 O 40）2]（2）（pytz = 5-（2-pyridyl）tetrazolate），并对其结构进行了表征. X射线衍射分析表明，化合物1中Wells-Dawson多金属氧酸盐的外围含有16个Ag-pytz亚基，是目前多金属氧酸盐中连接度最高的。在晶体工程的角度来看，所有的亚基，银原子，多金属氧酸盐，和配体，表现出丰富和新颖的配位几何，这有利于形成的最高配位数的多金属氧酸盐。化合物2具有复杂的（6，12）连接网络，具有（364653）（31843051563）拓扑结构，并由于PMo 12 a和PMo 12 b的互补配位模式而具有密排结构。据我们所知，这是一个罕见的协调模式在一个晶体。此外，还对这些化合物的发光性能和电化学行为进行了研究。
Two interesting hybrids based on polyoxometalates (POMs) and silver-tetrazolate subunits, H[Ag11(pytz)6(H2O)3(P2W18O62)]·H2O (1), and H[Ag17(pytz)12(H2O)6(PMo12O40)2] (2) (pytz = 5-(2-pyridyl)tetrazolate), have been synthesized and structurally characterized. X-ray diffraction analysis reveals that the periphery of the Wells–Dawson POMs contains 16 Ag-pytz subunits in compound 1, which represents the highest connection of the POMs up to now. In the crystal engineering point of view, all subunits, Ag atoms, POMs, and ligands, exhibit rich and novel coordination geometries, which facilitate the formation of the highest coordination number of the POMs. Compound 2 exhibits a complicated (6,12) connecting network with (364653)(31843051563) topology and possesses close-packed structure due to the complementary coordination mode of PMo12a and PMo12b. To the best of our knowledge, this is a scarce coordination mode in one crystal. In addition, the luminescent properties and electrochemical behaviors of these comp...