Synthesis, Crystal Structure and Heterogeneous Catalysis of a New Chiral Manganese Coordination Polymer Based on the Schiff-base Ligand
homochrial manganese(III) complex (1) derived from chiral salen ligand (1R,2R)-(-)-1,2-diphenylethane-1,2-diamine-N,N?-bicarboxyl-salicylidene) has been synthesized through solvothermal procedure and characterized by IR, elemental analysis, TGA, circular dichroism (CD), powder and single-crystal X-ray crystallography. It crystallizes in orthorhombic, space group P212121 with a = 9.108(3), b = 16.431(5), c = 26.531(6) ?, V = 3970.4(19) ?3, Z = 4, Dc = 1.248 g/cm3, F(000) = 1568, Mr = 745.73, μ = 0.383 mm-1, the final GOOF = 0.957, R = 0.0631 and wR = 0.1079 for 13250 observed reflections with I > 2σ(I). The coordination polymer 1 possesses a 1D infinite zigzag chain architecture constructed by the dicarboxyl-functionalized metallosalen ligand (Mn-salen), and the polymeric chains are further assembled into a 3D supramolecular network structure via strong intermolecular hydrogen bonding interactions between adjacent zigzag chains. As a heterogeneous catalyst, 1 was used as an efficient heterogeneous catalyst for the asymmetric olefin epoxidation.
homochrial manganese(III) complex (1) derived from chiral salen ligand (1R,2R)-(-)-1,2-diphenylethane-1,2-diamine-N,N-bicarboxyl-salicylidene) has been synthesized through solvothermal procedure and characterized by IR, elemental analysis, TGA, circular dichroism (CD), powder and single-crystal X-ray crystallography. It crystallizes in orthorhombic, space group P212121 with a = 9.108(3), b = 16.431(5), c = 26.531(6) , V = 3970.4(19) 3, Z = 4, Dc = 1.248 g/cm3, F(000) = 1568, Mr = 745.73, = 0.383 mm-1, the final GOOF = 0.957, R = 0.0631 and wR = 0.1079 for 13250 observed reflections with I > 2(I). The coordination polymer 1 possesses a 1D infinite zigzag chain architecture constructed by the dicarboxyl-functionalized metallosalen ligand (Mn-salen), and the polymeric chains are further assembled into a 3D supramolecular network structure via strong intermolecular hydrogen bonding interactions between adjacent zigzag chains. As a heterogeneous catalyst, 1 was used as an efficient heterogeneous catalyst for the asymmetric olefin epoxidation.
LI Zi-Jian、XIA Qing-Chun、LIU Bai-Zhan、LIU Yan、CUI Yong
化学晶体学金属元素无机化合物化学工业
manganese(III) complexcrystal structuresalenasymmetric catalysis
LI Zi-Jian,XIA Qing-Chun,LIU Bai-Zhan,LIU Yan,CUI Yong.Synthesis, Crystal Structure and Heterogeneous Catalysis of a New Chiral Manganese Coordination Polymer Based on the Schiff-base Ligand[EB/OL].(2017-11-05)[2025-08-02].https://chinaxiv.org/abs/201711.00163.点此复制
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