Structural Diversities of a Series of Cd(II) Coordination Complexes Based on a Flexible Tripodal N-donor Ligand
Three Cd(II) coordination complexes with unique structures and topologies, namely, {[Cd(tttmb)(Hbtc)]·5H<sub>2</sub>O}<sub>n</sub> (<b>1</b>), {[Cd(tttmb)(m-phda)(H<sub>2</sub>O)]·2H<sub>2</sub>O}<sub>n</sub> (<b>2</b&g...
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MDPI AG
2021-12-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/12/1/53 |
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| author | Huarui Wang Jianhua Qin |
| author_facet | Huarui Wang Jianhua Qin |
| author_sort | Huarui Wang |
| collection | DOAJ |
| description | Three Cd(II) coordination complexes with unique structures and topologies, namely, {[Cd(tttmb)(Hbtc)]·5H<sub>2</sub>O}<sub>n</sub> (<b>1</b>), {[Cd(tttmb)(m-phda)(H<sub>2</sub>O)]·2H<sub>2</sub>O}<sub>n</sub> (<b>2</b>), and {[Cd(tttmb)(o-cpla)]·(CH<sub>3</sub>CN)·(H<sub>2</sub>O)<sub>1.5</sub>}<sub>n</sub> (<b>3</b>), have been successfully synthesized under hydro(solvo)thermally condition based on a flexible tripodal N-contained ligand 1,3,5-tris(1,2,4-triazol-1-ylmethyl)-2,4,6-trimethylbenzene (tttmb) and aromatic polycarboxylate acids (H<sub>3</sub>btc = 1,2,4-benzenetricarboxylic acid, m-H<sub>2</sub>phda = 1,3-phenylenediacetic acid and o-H<sub>2</sub>cpla = Homophthalic acid). Complexes <b>1</b>–<b>3</b> were characterized by elemental analysis, IR spectroscopy, X-ray single-crystal diffraction and thermogravimetric analyses. <b>1</b> crystallize in the orthorhombic chiral space group <i>P</i><i>2<sub>1</sub>2<sub>1</sub>2<sub>1</sub></i> and feature 3D coordination networks. <b>2</b> reveals a 2D ladder-like structure with (4,4) topology containing alternating Cd(II)/<i>m</i>-phda<sup>2−</sup> left- and right-handed helical motifs. <b>3</b> exhibits a 3D net with (6<sup>3</sup>)(6<sup>6</sup>)(7·8<sup>2</sup>) topology. The structural and dimensional diversity of these complexes not only indicates that the flexible ligand tttmb exhibits strong coordination ability and diverse coordination modes, but also shows that aromatic polycarboxylates play important roles in constructing the frameworks of complexes. Moreover, the different photoluminescence behaviors of <b>1</b>–<b>3</b> have been studied in the solid state. |
| first_indexed | 2024-03-10T01:41:20Z |
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| id | doaj.art-675fb42d87e1438584cb6233a8ec3472 |
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| last_indexed | 2024-03-10T01:41:20Z |
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| spelling | doaj.art-675fb42d87e1438584cb6233a8ec34722023-11-23T13:24:25ZengMDPI AGCrystals2073-43522021-12-011215310.3390/cryst12010053Structural Diversities of a Series of Cd(II) Coordination Complexes Based on a Flexible Tripodal N-donor LigandHuarui Wang0Jianhua Qin1Henan Key Laboratory of Function-Oriented Porous Materials, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaHenan Key Laboratory of Function-Oriented Porous Materials, College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471934, ChinaThree Cd(II) coordination complexes with unique structures and topologies, namely, {[Cd(tttmb)(Hbtc)]·5H<sub>2</sub>O}<sub>n</sub> (<b>1</b>), {[Cd(tttmb)(m-phda)(H<sub>2</sub>O)]·2H<sub>2</sub>O}<sub>n</sub> (<b>2</b>), and {[Cd(tttmb)(o-cpla)]·(CH<sub>3</sub>CN)·(H<sub>2</sub>O)<sub>1.5</sub>}<sub>n</sub> (<b>3</b>), have been successfully synthesized under hydro(solvo)thermally condition based on a flexible tripodal N-contained ligand 1,3,5-tris(1,2,4-triazol-1-ylmethyl)-2,4,6-trimethylbenzene (tttmb) and aromatic polycarboxylate acids (H<sub>3</sub>btc = 1,2,4-benzenetricarboxylic acid, m-H<sub>2</sub>phda = 1,3-phenylenediacetic acid and o-H<sub>2</sub>cpla = Homophthalic acid). Complexes <b>1</b>–<b>3</b> were characterized by elemental analysis, IR spectroscopy, X-ray single-crystal diffraction and thermogravimetric analyses. <b>1</b> crystallize in the orthorhombic chiral space group <i>P</i><i>2<sub>1</sub>2<sub>1</sub>2<sub>1</sub></i> and feature 3D coordination networks. <b>2</b> reveals a 2D ladder-like structure with (4,4) topology containing alternating Cd(II)/<i>m</i>-phda<sup>2−</sup> left- and right-handed helical motifs. <b>3</b> exhibits a 3D net with (6<sup>3</sup>)(6<sup>6</sup>)(7·8<sup>2</sup>) topology. The structural and dimensional diversity of these complexes not only indicates that the flexible ligand tttmb exhibits strong coordination ability and diverse coordination modes, but also shows that aromatic polycarboxylates play important roles in constructing the frameworks of complexes. Moreover, the different photoluminescence behaviors of <b>1</b>–<b>3</b> have been studied in the solid state.https://www.mdpi.com/2073-4352/12/1/53coordination polymerchiral space groupladder-like structureluminescence |
| spellingShingle | Huarui Wang Jianhua Qin Structural Diversities of a Series of Cd(II) Coordination Complexes Based on a Flexible Tripodal N-donor Ligand Crystals coordination polymer chiral space group ladder-like structure luminescence |
| title | Structural Diversities of a Series of Cd(II) Coordination Complexes Based on a Flexible Tripodal N-donor Ligand |
| title_full | Structural Diversities of a Series of Cd(II) Coordination Complexes Based on a Flexible Tripodal N-donor Ligand |
| title_fullStr | Structural Diversities of a Series of Cd(II) Coordination Complexes Based on a Flexible Tripodal N-donor Ligand |
| title_full_unstemmed | Structural Diversities of a Series of Cd(II) Coordination Complexes Based on a Flexible Tripodal N-donor Ligand |
| title_short | Structural Diversities of a Series of Cd(II) Coordination Complexes Based on a Flexible Tripodal N-donor Ligand |
| title_sort | structural diversities of a series of cd ii coordination complexes based on a flexible tripodal n donor ligand |
| topic | coordination polymer chiral space group ladder-like structure luminescence |
| url | https://www.mdpi.com/2073-4352/12/1/53 |
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