Citation:
HUANG Sheng, JIANG Chang, YAO Feng-Feng, KANG Jie. Syntheses, Crystal Structures, and Magnetic Properties of Two Manganese(II) Coordination Polymers Based on Bifunctional Pyridine-benzene Carboxylic Acids[J]. Chinese Journal of Structural Chemistry,
2016, 35(8): 1260-1268.
doi:
10.14102/j.cnki.0254-5861.2011-1174
Syntheses, Crystal Structures, and Magnetic Properties of Two Manganese(II) Coordination Polymers Based on Bifunctional Pyridine-benzene Carboxylic Acids
摘要:
Two manganese(II) coordination polymers, namely, {[Mn(PIP)(BIBP)]·(BIBP)0.5}n (1) and {[Mn(PTA)(BIMBP)(H2O)]·H2O0.69}n (2) (H2PIP=5-(4-pyridyl)-isophthalic acid, H2PTA=6-(4-pyridyl)-terephthalic acid, BIBP=4,4'-bis(imidazol-1-yl)biphenyl, and BIMBP=4,4'-bis(imidazol-1-ylmethyl)biphenyl), have been synthesized by using the bifunctional pyrinde-benzene carboxylic acids and bis(imidazole) linkers as mixed ligands to react with MnSO4, and further characterized by elemental analysis, IR, and PXRD. Compound 1 is in the triclicnic system, space group P1 with a=10.1089(8), b=13.1927(12), c=14.0638(12)Å, α=69.437(2), β=73.2890(10), γ=78.5320(10)°, V=1671.9(2)Å3, Z=2, Dc=1.449 g/cm3, F(000)=705, μ(MoKα)=0.453 mm-1, S=1.053, R=0.0491 and wR=0.1367 for 5837 unique reflections (Rint=0.0208) with I>2σ(I). Compound 2 belongs to the monoclicnic system, space group C2/c with a=15.199(3), b=19.731(3), c=21.537(5)Å, β=105.228(3)°, V=6232(2)Å3, Z=8, Dc=1.363 g/cm3, F(000)=2648, μ(MoKα)=0.475 mm-1, S=1.048, R=0.0489 and wR=0.1151 for 7414 unique reflections (Rint=0.0425) with I>2σ(I). Structural analyses reveal that complex 1 is a 4-connected (44.62)-sql bilayer structure with binuclear[Mn2(COO)2] SBU, while complex 2 is a normally (3,5)-connected (42.67.8)(42.6)-3,5L2 monolayer. And the sheets interacted with the adjacent sheets through weak interactions, finally giving a stable three-dimensional (3D) supramolecule. Besides, the variable-temperature magnetic susceptibility measurement of complex 1 was investigated.
English
Syntheses, Crystal Structures, and Magnetic Properties of Two Manganese(II) Coordination Polymers Based on Bifunctional Pyridine-benzene Carboxylic Acids
Abstract:
Two manganese(II) coordination polymers, namely, {[Mn(PIP)(BIBP)]·(BIBP)0.5}n (1) and {[Mn(PTA)(BIMBP)(H2O)]·H2O0.69}n (2) (H2PIP=5-(4-pyridyl)-isophthalic acid, H2PTA=6-(4-pyridyl)-terephthalic acid, BIBP=4,4'-bis(imidazol-1-yl)biphenyl, and BIMBP=4,4'-bis(imidazol-1-ylmethyl)biphenyl), have been synthesized by using the bifunctional pyrinde-benzene carboxylic acids and bis(imidazole) linkers as mixed ligands to react with MnSO4, and further characterized by elemental analysis, IR, and PXRD. Compound 1 is in the triclicnic system, space group P1 with a=10.1089(8), b=13.1927(12), c=14.0638(12)Å, α=69.437(2), β=73.2890(10), γ=78.5320(10)°, V=1671.9(2)Å3, Z=2, Dc=1.449 g/cm3, F(000)=705, μ(MoKα)=0.453 mm-1, S=1.053, R=0.0491 and wR=0.1367 for 5837 unique reflections (Rint=0.0208) with I>2σ(I). Compound 2 belongs to the monoclicnic system, space group C2/c with a=15.199(3), b=19.731(3), c=21.537(5)Å, β=105.228(3)°, V=6232(2)Å3, Z=8, Dc=1.363 g/cm3, F(000)=2648, μ(MoKα)=0.475 mm-1, S=1.048, R=0.0489 and wR=0.1151 for 7414 unique reflections (Rint=0.0425) with I>2σ(I). Structural analyses reveal that complex 1 is a 4-connected (44.62)-sql bilayer structure with binuclear[Mn2(COO)2] SBU, while complex 2 is a normally (3,5)-connected (42.67.8)(42.6)-3,5L2 monolayer. And the sheets interacted with the adjacent sheets through weak interactions, finally giving a stable three-dimensional (3D) supramolecule. Besides, the variable-temperature magnetic susceptibility measurement of complex 1 was investigated.
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