Four 1-D metal-organic polymers self-assembled from semi-flexible benzimidazole-based ligand: Syntheses, structures and fluorescent properties
| Autor: | Ruiying Li, Hongwei Hou, Hong Xu, Zhongyi Liu, Junbiao Chang, Sai-nan Liu, Chun-lin Zhou, Jinpeng Li, Jiajia Cheng, Shimin Wang, Huan Sun, Tiantian Yu |
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| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Benzimidazole 010405 organic chemistry Chemistry Stereochemistry Ligand Organic Chemistry Solid-state Polymer Crystal structure 010402 general chemistry 01 natural sciences Fluorescence 0104 chemical sciences Analytical Chemistry Self assembled Inorganic Chemistry Metal chemistry.chemical_compound Crystallography visual_art visual_art.visual_art_medium Spectroscopy |
| Zdroj: | Journal of Molecular Structure. 1118:139-146 |
| ISSN: | 0022-2860 |
| Popis: | Four one-dimensional (1-D) metal-organic polymers based on methylene-bis(1,1′-benzimidazole)(mbbz), namely, {[Hg(mbbz)(SCN)2]·1/3H2O}n (1), [Co(mbbz)(Cl)2]n (2), {[Co(mbbz)(SO4)]·CH3OH}n (3) and {[Zn(mbbz)(SO4)]·CH3OH}n (4) have been successfully synthesized and structurally characterized. Single-crystal X-ray diffraction reveals that polymers 1 and 2 exhibit interesting 1-D double helical chain structures, while polymers 3 and 4 are 1-D double chain structures due to the bridging effect of mbbz ligands and sulfate anions. These polymers containing the mbbz-based ligand have a high degree of dependence on the corresponding counter anions. Furthermore, the fluorescence properties of the four polymers were also investigated in the solid state, showing the fluorescence signal changes in comparing with that of free ligand mbbz. |
| Databáze: | OpenAIRE |
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