Construction of functional coordination polymers derived from designed flexible bis(4-carboxybenzyl)amine
| Autor: | Hongtai Chen, Guang-Zeng Liu, Xinzheng Liu, Xiutang Zhang, Bin Li |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Carboxybenzyl
Materials science Ligand Supramolecular chemistry 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Crystallography chemistry.chemical_compound chemistry Imidazole Molecule General Materials Science Amine gas treating 0210 nano-technology Luminescence Selectivity |
| Zdroj: | CrystEngComm. 21:1231-1241 |
| ISSN: | 1466-8033 |
| Popis: | Four coordination polymers (CPs), [Zn2(H2BCA)2(o-bimb)2(H2O)2]n (1), {[Pb(H2BCA)(p-bib)0.5]·H2O}n (2), {[Cd2(H2BCA)2(p-bib)2]·(H2O)3}n (3) and {[Zn(H2BCA)(m-bib)]·H2O}n (4), have been derived from the designed flexible bis(4-carboxybenzyl)amine (H2BCA) with bis(imidazole) linkers (p-bib = 1,1′-benzene-1,4-diylbis(1H-imidazole), m-bib = 1,3-bis(1-imidazoly)benzene, and o-bimb = 1,2-bis(imidazol-1-ylmethyl) benzene). X-ray single crystal diffraction analyses reveal that complex 1 is a 3D supramolecular structure composed of 2D 3-connected hcb layers via hydrogen contacts. Complex 2 exhibits a 3D 2-nodal (4,5)-connected {44.62}{44.66}-tcs net. Complex 3 shows a novel 2-nodal 3D (4,5,5)-connected net with the point symbol {4.66.83}2{42.62.82}. Complex 4 displays a 3D 3-fold interpenetrating 3-connected {103} ThSi2 net. Structural comparison reveals that the central ions as well as the auxiliary ligand play critical roles in determining the coordination modes of H2BCA and the final structures. In addition, the luminescence measurements of two zinc-containing compounds (1 and 4) have been discussed and show excellent selectivity and sensitivity in detecting acetone molecules and Cr2O72−/CrO42− anions in aqueous solution. |
| Databáze: | OpenAIRE |
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