Novel Inorganic–Organic Hybrid Frameworks of Manganese(II): Syntheses, Crystal Structures, and Physical Properties

• Published in: Crystal growth & design Vol. 8; no. 6; pp. 1924 - 1931
• Main Authors: Bai, Zheng-Shuai, Qi, Zhao-Peng, Lu, Yi, Yuan, Qing, Sun, Wei-Yin
• Format: Journal Article
• Language: English
• Published: Washington,DC American Chemical Society 01.06.2008
• Subjects: Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Growth from solutions; Materials science; Methods of crystal growth; physics of crystal growth; Organic compounds; Other materials; Physics; Specific materials; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Second harmonic generation; Network structure; Space groups; Hybrid material; Porous materials; Complex system; Organometallic compounds; Bipyridines; Physical properties; Hydrothermal synthesis; Temperature effects; Optical properties; Manganese complexes; Phenanthrolines; Crystal growth from solutions; Ligands; Magnetic properties; Crystal structure
• ISSN: 1528-7483; 1528-7505
• DOI: 10.1021/cg7011952

Three new inorganic–organic hybrid frameworks, [Mn2(BPTCA)(phen)2·H2O] n (1), [Mn4(BPTCA)2(H2O)10·2.5H2O] n (2), and [Mn2(BPTCA)(μ2-H2O)2] n (3) (BPTCA4− = 4,4′-bipyridine-2,2′,6,6′-tetracarboxylate; phen = 1,10-phenanthroline), have been synthesized under hydrothermal conditions. Complex 1 is a two-dimensional (2D) network constructed by infinite O−Mn−O−C−O−Mn- chains and BPTCA4− ligands, and an intriguing slide fastener-like three-dimensional (3D) framework structure is formed by the π···π interactions between the phen molecules. Complex 2 crystallized in a chiral space group P21 has a 2D network structure formed by Mn4 cluster units and BPTCA4− linkers, while complex 3 obtained at higher temperature than 2 is a 3D porous architecture. The result implies that the hydrothermal reaction temperature has a great influence on the structure of the complexes in this system. The magnetic behaviors of the complexes have been investigated and 2 showed modest powder second harmonic generation activity.