Two novel acid-base adducts, [H2L12+](Hpbda)2 (1, L1 = 1,4-di(1H-imidazol-4-yl) benzene, H2pbda = 1,4-benzenedicarboxylic acid) and [H2L22+](NO3)2 (2, L2 = 1,4-di(1-carboxy- methyl-imidazol-4-yl)benzene), have been prepared and characterized by single-crystal X-ray diffraction, IR spectroscopy and elemental analysis. Compound 1 crystallizes in monoclinic, space group P21/n with a = 5.3525(11), b = 9.1471(19), c = 19.314(4) Å, β = 92.342(3)º, V = 944.8(3) Å3, Z = 2, C16H16N6O10, Mr = 452.35, Dc = 1.590 g/cm3, μ = 0.135 mm-1, S = 1.058, F(000) = 468, the final R = 0.0661 and wR = 0.1887 for 2298 observed reflections (I > 2σ(I)). Compound 2 crystallizes in monoclinic, space group P21/c with a = 9.6923(10), b = 17.2950(17), c = 7.1880(7) Å, β = 94.801(2)º, V = 1200.7(2) Å3, Z = 2, C28H22N4O8, Mr = 542.50, Dc = 1.501 g/cm3, μ = 0.112 mm-1, S = 1.060, F(000) = 564, the final R = 0.0394 and wR = 0.1017 for 2768 observed reflections (I > 2σ(I)). In the title compounds, both of L1 and L2 ligands act as weak base to accept protons to exhibit diprotonated H2L12+ and H2L22+ form, which can effectively employ as hydrogen bonding donors to combine anion moieties to form binary adducts respectively. In the crystal packing diagram of two polymers, there exist extensive noncovalent interactions including charge-transfer interactions, C(N)−H···π and N−H···O, C−H···O, O−H···O hydrogen bonding interactions between co-crystal moieties which consolidate the structures of supramolecular polymers, thus generating three-dimensional (3D) frameworks.
Two novel acid-base adducts, [H2L12+](Hpbda)2 (1, L1 = 1,4-di(1H-imidazol-4-yl) benzene, H2pbda = 1,4-benzenedicarboxylic acid) and [H2L22+](NO3)2 (2, L2 = 1,4-di(1-carboxy- methyl-imidazol-4-yl)benzene), have been prepared and characterized by single-crystal X-ray diffraction, IR spectroscopy and elemental analysis. Compound 1 crystallizes in monoclinic, space group P21/n with a = 5.3525(11), b = 9.1471(19), c = 19.314(4) Å, β = 92.342(3)º, V = 944.8(3) Å3, Z = 2, C16H16N6O10, Mr = 452.35, Dc = 1.590 g/cm3, μ = 0.135 mm-1, S = 1.058, F(000) = 468, the final R = 0.0661 and wR = 0.1887 for 2298 observed reflections (I > 2σ(I)). Compound 2 crystallizes in monoclinic, space group P21/c with a = 9.6923(10), b = 17.2950(17), c = 7.1880(7) Å, β = 94.801(2)º, V = 1200.7(2) Å3, Z = 2, C28H22N4O8, Mr = 542.50, Dc = 1.501 g/cm3, μ = 0.112 mm-1, S = 1.060, F(000) = 564, the final R = 0.0394 and wR = 0.1017 for 2768 observed reflections (I > 2σ(I)). In the title compounds, both of L1 and L2 ligands act as weak base to accept protons to exhibit diprotonated H2L12+ and H2L22+ form, which can effectively employ as hydrogen bonding donors to combine anion moieties to form binary adducts respectively. In the crystal packing diagram of two polymers, there exist extensive noncovalent interactions including charge-transfer interactions, C(N)−H···π and N−H···O, C−H···O, O−H···O hydrogen bonding interactions between co-crystal moieties which consolidate the structures of supramolecular polymers, thus generating three-dimensional (3D) frameworks.
基金资助:This work was supported by the National Natural Science Foundation of China (No. 21171040 and 21302019) and the disguished organic project (2013JCJS01)
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引用本文:
李卫东;方旭;乔瑞;陈水生. Non-covalent Bonded 3D Supramolecular Architectures Based on Acid-base Adducts[J]. 结构化学, 2016, 35(1): 46-54.
LI Wei-Dong;FANG Xu;QIAO Rui;CHEN Shui-Sheng. Non-covalent Bonded 3D Supramolecular Architectures Based on Acid-base Adducts. CHINESE JOURNAL OF STRUCTURAL CHEMISTRY, 2016, 35(1): 46-54.
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