A New Type of Single-Helix Coordination Polymer with Mixed Ligands [M2(phen)2(e,a-cis-1,4-chdc)2(H2O)2]n(M = Co and Ni; phen = 1,10-phenanthroline; chdc = cyclohexanedicarboxylate)

2003 ◽  
Vol 42 (25) ◽  
pp. 8519-8523 ◽  
Author(s):  
Yanjuan Qi ◽  
Yonghui Wang ◽  
Changwen Hu ◽  
Minhua Cao ◽  
Li Mao ◽  
...  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Xinzhao Xia ◽  
Lixian Xia ◽  
Geng Zhang ◽  
Yuxuan Jiang ◽  
Fugang Sun ◽  
...  

Abstract In this work, a new type of zinc(II) coordination polymer {[Zn(HIDC)(BBM)0.5]·H2O} n (Zn-CP) was synthesized using 4,5-imidazoledicarboxylic acid (H3IDC) and 2,2-(1,4-butanediyl)bis-1,3-benzimidazole (BBM) under hydrothermal conditions. Its structure has been characterized by infrared spectroscopy, elemental analysis and single crystal X-ray diffraction analysis. The Zn(II) ion is linked by the HIDC2− ligand to form a zigzag chain by chelating and bridging, and then linked by BBM to form a layered network structure. Adjacent layers are further connected by hydrogen bond interaction to form a 3-D supramolecular framework. The solid-state fluorescence performance of Zn-CP shows that compared with free H3IDC ligand, its fluorescence intensity is significantly enhanced.


Crystals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 372
Author(s):  
Mei-An Zhu ◽  
Shuai-Shuai Han ◽  
Feng Deng ◽  
Jia-Le Li ◽  
Shui-Sheng Chen

The coordination polymer, namely, [Cd(H2L)(nobda)]n (1) was prepared by the reaction of Cd(NO3)2·4H2O with 4-amino-1,2-benzenedicarboxylic acid (H2nobda) and 1,4-di(1H-imidazol-4-yl)benzene (H2L), and characterized by single-crystal X-ray diffraction, elemental analysis, infrared (IR) spectroscopy, thermogravimetric analysis, and powder X-ray diffraction (PXRD). The carboxylic acid of H2nobda ligands was completely deprotonated to be nobda2− anions, which act as tridentate ligand to connect the Cd2+ to form two-dimensional (2D) network, while the neutral H2L ligands serve as a linear didentate bridge to connect two adjacent Cd2+ ions upper and down the 2D layer. The adjacent 2D layers were further linked into the three-dimensional (3D) supramolecular polymer by the weak interactions such as hydrogen bonds and π−π stacking interactions. The ultraviolet-visible (UV-vis) absorption spectra and luminescent properties in the solid state at room temperature have been investigated.


2009 ◽  
Vol 923 (1-3) ◽  
pp. 90-93 ◽  
Author(s):  
Shi-Bin Ren ◽  
Jun Zhang ◽  
Xiao-Li Yang ◽  
Yi-Zhi Li ◽  
Hong-Bin Du ◽  
...  

2008 ◽  
Vol 63 (11) ◽  
pp. 1343-1346 ◽  
Author(s):  
Dong-Qing Li ◽  
Xing Liu ◽  
Jian Zhou

Abstract A novel 1D zinc(II) coordination polymer [Zn(absa)- (pcih)](CH3OH) (1) (Habsa = 4-aminobenzenesulfonic acid, Hpcih = 2-pyridinecarbaldehyde isonicotinoylhydrazone) has been synthesized by solvothermal reaction at 72 °C and structurally characterized. Each Zn2+ ion is five-coordinated by three N atoms and one O atom from two pcih ligands, and one O atom of an absa ligand, forming a distorted squarepyramidal geometry. Zn2+ ions are bridged by pcih ligands in a zig-zag arrangement generating infinite chains with appended absa ligands. Photoluminescent studies have shown that 1 exhibits an emission at 535 nm (λex = 492 nm).


2013 ◽  
Vol 1 (25) ◽  
pp. 3202 ◽  
Author(s):  
Peng Fei Gao ◽  
Lin Ling Zheng ◽  
Li Jiao Liang ◽  
Xiao Xi Yang ◽  
Yuan Fang Li ◽  
...  

2017 ◽  
Vol 41 (11) ◽  
pp. 4689-4701 ◽  
Author(s):  
Leena Mandal ◽  
Shuvankar Mandal ◽  
Sasankasekhar Mohanta

One phenoxo–hydroxo bridged tetranuclear cluster and one phenoxo-µ1,1-azido-µ1,3-azido bridged one-dimensional coordination polymer of copper(ii) derived from a Schiff base ligand are described.


2019 ◽  
Vol 7 (12) ◽  
pp. 5482-5491 ◽  
Author(s):  
Qianqian Liu ◽  
Keke Du ◽  
Mei Liu ◽  
Rongmu Lv ◽  
Baiwang Sun ◽  
...  

A new type of pH-responsive nanoscale coordination polymer for ROS-enhanced cancer therapy.


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