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Zeng Y, Du CJ. The crystal structure of 3,5-difluoroisonicotinic acid, C 6H 3F 2NO 2. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2020-0144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C6H3F2NO2, monoclinic, P21/n (no. 14), a = 6.8050(10) Å, b = 6.8443(9) Å, c = 12.7196(14) Å, β = 94.562(4)°, V = 590.54(13) Å3, Z = 4, R
gt(F) = 0.0395, wR
ref(F
2) = 0.1038, T = 150(2) K.
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Affiliation(s)
- Yan Zeng
- College of Chemistry and Chemical Engineering, Xinxiang University , Xinxiang, Henan 453003 , P.R. China
| | - Chao-Jun Du
- School of Biochemical and Chemical Engineering, Nanyang Institute of Technology , Nanyang, Henan 473000 , P.R. China
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2
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Li SJ, Li K, Li YW. The crystal structure of 3-bromoisonicotinic acid, C 6H 4BrNO 2. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2019-0933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C6H4BrNO2, triclinic, P1̄ (no. 2), a = 7.2512(6) Å, b = 7.3916(6) Å, c = 7.4920(7) Å, α = 65.065(4)°, β = 68.858(4)°, γ = 64.919(4)°, V = 321.60(5) Å3, Z = 2, R
gt(F) = 0.0369, wR
ref(F
2) = 0.1017, T = 150(2) K.
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Affiliation(s)
- Shu-Jing Li
- Department of Chemistry and Chemical Engineering , Zhoukou Normal University , Zhoukou, Henan 466001 , P.R. China
| | - Ke Li
- Department of Chemistry and Chemical Engineering , Zhoukou Normal University , Zhoukou, Henan 466001 , P.R. China
| | - Yi-Wen Li
- Department of Chemistry and Chemical Engineering , Zhoukou Normal University , Zhoukou, Henan 466001 , P.R. China
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Fu WW, Li J, Liu ST, Zhao D, Zhou X, Tong Y. A one-dimensional silver(I) coordination polymer based on 5-methyl-1,3,4-thiadiazol-2-amine and pyridine-2,3-dicarboxylate. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2017; 73:498-502. [DOI: 10.1107/s2053229617007653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 05/23/2017] [Indexed: 11/10/2022]
Abstract
The bifunctional pyridine-2,3-dicarboxylic acid (H2pdc) ligand has one N atom and four O atoms, which could bind more than one AgI centre with diverse binding modes. A novel infinite one-dimensional AgI coordination polymer, namely catena-poly[[silver(I)-(μ2-pyridine-2,3-dicarboxylato-κ2
N:O
3)-silver(I)-tris(μ2-5-methyl-1,3,4-thiodiazol-2-amine-κ2
N:N′)] monohydrate ethanol monosolvate], {[Ag2(C7H3NO4)(C3H5N3S)3]·H2O·C2H5OH}
n
, has been synthesized using H2pdc and 5-methyl-1,3,4-thiadiazol-2-amine (tda), and characterized by single-crystal X-ray diffraction. One AgI atom is located in a four-coordinated AgN4 tetrahedral geometry and the other AgI atom is in a tetrahedral AgN3O geometry. A dinuclear AgI cluster formed by three tda ligands with a paddelwheel configuration is bridged by the dianionic pdc2− ligand into a one-dimensional coordination polymer. Interchain N—H...O hydrogen bonds extend the one-dimensional chains into an undulating two-dimensional sheet. The sheets are further packed into a three-dimensional supramolecular framework by interchain N—H...O hydrogen bonds.
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