论文部分内容阅读
A one-dimensional zinc-containing coordination polymer,[Zn2(NBA)2(4,4’-bipy)]n(NBA = 3-nitrobenzoic acid,4,4’-bipy = 4,4’-bipyrindine),has been solvothermally synthesized and characterized by single-crystal X-ray diffraction,IR and elemental analysis.The crystal structure is of monoclinic,space group C2/c with a = 24.6478(2),b = 14.0964(3),c = 11.4275(2),β =108.7870(10)°,V = 3758.89(11)3,C38H20N6O16Zn2,Mr = 947.34,Z = 4,Dc = 1.674 g/cm3,μ = 1.363 mm-1,F(000) = 1912,R = 0.0720 and wR = 0.2277 for 2841 observed reflections(I > 2σ(I)).In this compound,NBA in syn-syn coordination mode bridges zinc centers into dimeric-zinctetracarboxylate [Zn2(COO)4] secondary building units(SBUs) which are linked through μ-4,4’-bpy affording 1D alternating chains.These adjacent chains are further stacked through intermolecular π···π interactions to form a 3D framework.
A one-dimensional zinc-containing coordination polymer, [Zn2 (NBA) 2 (NBA = 3-nitrobenzoic acid, 4,4’-bipy = 4,4’-bipyrindine), has was solvothermally synthesized and characterized by single-crystal X-ray diffraction, IR and elemental analysis. The crystal structure is of monoclinic, space group C2 / c with a = 24.6478 (2), b = 14.0964 (3), c = 11.4275 2 = 108, β = 108.7870 (10) °, V = 3758.89 (11) 3, C38H20N6O16Zn2, Mr = 947.34, Z = 4, Dc = 1.674 g / cm3, μ = 1.363 mm-1, F 1912, R = 0.0720 and wR = 0.2277 for 2841 observed reflections (I> 2σ (I)). In this compound, NBA in syn-syn coordination mode bridges zinc centers into dimeric-zinctetracarboxylate [Zn2 (COO) 4] (SBUs) which are linked through μ-4,4’-bpy affording 1D alternating chains. These adjacent chains are further stacked through intermolecular π. Π interactions to form a 3D framework.