Hydrothermal Syntheses,Crystal Structures and Characteristics of Two New Isostructural Ni(Ⅱ)Coordination Polymers  

作　　者：赵恩晓 李飞飞 赵丹 

机构地区：[1]Department of Physics and Chemistry,Henan Polytechnic University

出　　处：《Chinese Journal of Structural Chemistry》2016年第11期1764-1769,共6页结构化学（英文）

基　　金：supported by the Natural Science Foundation of Henan Province(122300410418,132200410404)

摘　　要：Two new isostructure nickel（Ⅱ） coordination polymers, [Ni2（5-Me-ip）（1,2- Bie）（H2O）2]n （1） and [Ni2（5-Br-ip）（1,2-Bie）（H2O）2]n （2） （5-Me-H2ip = 5-methylisophthalic acid, 5-Br-H2ip = 5-mromoisophthalic acid, 1,2-Bie = 1,2-bis（imidazole）ethane）, have been synthesized and structurally characterized by single-crystal X-ray diffraction. The result shows that complexes 1 and 2 crystallize in orthorhombic system, space group Pna21 with a = 16.3602（13）, b = 10.1465（8）, c = 21.8803（17）A^°, V = 3632.1（5） A^°3, Z = 4, Dc = 1.525 g/cm3, F（000） = 1728, R = 0.0292 and wR = 0.0668 for 6646 observed reflections （I 〉 2σ（I）） for complex 1 and a = 16.409（3）, b = 10.1625（17）, c = 21.918（4）A^°, V = 3654.9（11） A^°3, Z = 4, Dc = 1.752 g/cm^3, F（000） = 1936, R = 0.0309 and wR = 0.0600 for 6809 observed reflections （I 〉 2σ（I）） for complex 2. They both feature zigzag 2D layer structures, which are further staked along the a-axis through π…π and hydrogen interactions to form 3D supramolecular structures.Two new isostructure nickel（Ⅱ） coordination polymers, [Ni2（5-Me-ip）（1,2- Bie）（H2O）2]n （1） and [Ni2（5-Br-ip）（1,2-Bie）（H2O）2]n （2） （5-Me-H2ip = 5-methylisophthalic acid, 5-Br-H2ip = 5-mromoisophthalic acid, 1,2-Bie = 1,2-bis（imidazole）ethane）, have been synthesized and structurally characterized by single-crystal X-ray diffraction. The result shows that complexes 1 and 2 crystallize in orthorhombic system, space group Pna21 with a = 16.3602（13）, b = 10.1465（8）, c = 21.8803（17）A^°, V = 3632.1（5） A^°3, Z = 4, Dc = 1.525 g/cm3, F（000） = 1728, R = 0.0292 and wR = 0.0668 for 6646 observed reflections （I 〉 2σ（I）） for complex 1 and a = 16.409（3）, b = 10.1625（17）, c = 21.918（4）A^°, V = 3654.9（11） A^°3, Z = 4, Dc = 1.752 g/cm^3, F（000） = 1936, R = 0.0309 and wR = 0.0600 for 6809 observed reflections （I 〉 2σ（I）） for complex 2. They both feature zigzag 2D layer structures, which are further staked along the a-axis through π…π and hydrogen interactions to form 3D supramolecular structures.

关 键 词：crystal structure coordination polymer 5-bromoisophthalic acid 1 2-bis（imidazole）ethane 

分 类 号：O641.4[理学—物理化学]