Abstract
The hydrothermal reaction of Zn(CH3COO)2, NaOH and l-cysteic acid produced the title compound, [Na2Zn(C3H5NO5S)2]n. The ZnII cation is situated on an inversion centre and is in a distorted octahedral environment, being chelated by two deprotoned l-cysteic acid ligands through two amino N atoms and two carboxylic O atoms, with the two axial positions occupied by two carboxylic O atoms from two other l-cysteic acid ligands. Each l-cysteic acid ligand bridges five NaI ions via its sulfonate group and two ZnII ions via its carboxyl group, forming a three-dimensional framework. Weak N—H⋯O hydrogen bonding is observed in the crystal structure.
Highlights
Physics and Chemistry Department, Jiangxi College of Traditional Chinese Medicine, Fuzhou, Jiangxi 344000, People’s Republic of China
The ZnII cation is situated on an inversion centre and is in a distorted octahedral environment, being chelated by two deprotoned l-cysteic acid ligands through two amino N
Atoms and two carboxylic O atoms, with the two axial positions occupied by two carboxylic O atoms from two other l-cysteic acid ligands
Summary
Physics and Chemistry Department, Jiangxi College of Traditional Chinese Medicine, Fuzhou, Jiangxi 344000, People’s Republic of China. R factor = 0.027; wR factor = 0.075; data-to-parameter ratio = 12.2. The hydrothermal reaction of Zn(CH3COO), NaOH and lcysteic acid produced the title compound, [Na2Zn(C3H5NO5S)2]n. The ZnII cation is situated on an inversion centre and is in a distorted octahedral environment, being chelated by two deprotoned l-cysteic acid ligands through two amino N atoms and two carboxylic O atoms, with the two axial positions occupied by two carboxylic O atoms from two other l-cysteic acid ligands. Each l-cysteic acid ligand bridges five NaI ions via its sulfonate group and two ZnII ions via its carboxyl group, forming a three-dimensional framework. Weak N—H O hydrogen bonding is observed in the crystal structure. Symmetry code: (iii) x þ 1; y þ 12; z þ 32
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