School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, PR China.
Dalton Trans. 2013 Jun 7;42(21):7803-9. doi: 10.1039/c3dt00118k.
A new hybrid compound, Na[Ag6(pyttz)2(H2O)][PMo12O40] (pyttz = 3-(pyrid-3-yl)-5-(1H-1,2,4-triazol-3-yl)-1,2,4-triazolyl), has been hydrothermally synthesized and structurally characterized by routine techniques. X-ray diffraction analysis reveals that the title compound is constructed by the 2D Ag-pyttz coordination polymer and 3D Ag-POM architecture with helix. A fascinating structural feature is the assembling fashion of the right- and left-helical chain, namely, the helical chains with different orientations are intertwined with each other forming intertwined double helical layers along the c-axis, and the identical left- or right-handed helical chains are fused together in a hand-by-hand mode generating another homological helical layer along the a-axis. As a result, these helical layers intersect each other obtaining an unprecedented 3D POM-Ag inorganic architecture. Note that the 3D framework with a helix constructed by POMs and metal ions has never been observed up to date. Additionally, its photocatalytic degradation of RhB was also investigated.
一种新的杂化化合物，Na[Ag6(pyttz)2(H2O)][PMo12O40]（pyttz = 3-(吡啶-3-基)-5-(1H-1,2,4-三唑-3-基)-1,2,4-三唑基），已经通过常规技术水热合成并进行了结构表征。X 射线衍射分析表明，标题化合物由二维 Ag-pyttz 配位聚合物和 3D Ag-POM 结构与螺旋体组成。一个迷人的结构特征是右螺旋链和左螺旋链的组装方式，即具有不同取向的螺旋链相互交织在一起，沿着 c 轴形成交织的双螺旋层，相同的左螺旋链或右螺旋链以手拉手的方式融合在一起，沿着 a 轴产生另一个同源螺旋层。结果，这些螺旋层相互交叉，获得了前所未有的 3D POM-Ag 无机结构。值得注意的是，迄今为止，尚未观察到由 POMs 和金属离子构建的带有螺旋体的 3D 骨架。此外，还研究了其对 RhB 的光催化降解性能。
