Hydrothermal synthesis and characterization of a series of luminescent Ag(<scp>i</scp>) coordination polymers with two new multidentate bis-(1,2,3-triazole) ligands: structural diversity, polymorphism and photoluminescent sensing
作者:Jian Zhong Huo、Xiu Mei Su、Xiang Xia Wu、Yuan Yuan Liu、Bin Ding
DOI:10.1039/c6ce01275b
日期:——
exhibits highly selective and sensitive luminescence sensing of Cr2O72− ions in aqueous solutions with high quenching efficiency (Ksv = 1.53 × 104 L mol−1) and low detection limit (0.23 μM (S/N = 3)), which make it a promising candidate for sensing Cr2O72− anionpollutants in the actual measurement process. 5 is the first coordinationpolymer based on a bis-(1,2,3-triazole) derivative as luminescent probes
Single crystal-to-single crystal transformation – from two distinct to three distinct spin crossover centers in 2D coordination polymer [Fe(bbtr)<sub>3</sub>](CF<sub>3</sub>SO<sub>3</sub>)<sub>2</sub>
results of Mössbauerstudies. In the polymorphic system (1c) there are three crystallographically independent iron(II) ions. The temperature dependence results for magneticsusceptibility indicated complete, one-step spin crossover very similar to that of 1; however, single-crystal X-ray diffraction studies of 1c revealed that spin crossover for each crystallographically independent iron(II) ion occurs
1,4-Di(1,2,3-triazol-1-yl)butane as Building Block for the Preparation of the Iron(II) Spin-Crossover 2D Coordination Polymer
作者:Robert Bronisz
DOI:10.1021/ic050449z
日期:2005.6.1
The novel bidentate ligand 1, 4-di(1 2,3-triazol-1-yl) butane (bbtr) reacts with Fe(CIO4)(2)(.)6H(2)O to form the 2D coordination polymer with (3,6) network topology. The [Fe(bbtr)(3)](CIO4)(2)}(infinity) represents an example of spin-crossover material based on 1,2,3-triazole as donor group, and displays an abrupt spin transition accompanied by a thermal hysteresis loop (T-1/2(down arrow) = 101 K and T-1/2(up arrow) = 109 K).
Double spin transition in a two dimensional Fe(<scp>ii</scp>) coordination network