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对称5,5′-二苯亚胺基二吡咯甲烷化合物及其Ni(Ⅱ)配合物的合成与晶体结构 被引量:1

Synthesis and crystal structures of 5,5′-bisphenyliminedipyrromethane compounds and their Ni(Ⅱ)complexes
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摘要 从二吡咯甲烷出发,合成2种对称5,5′-二亚胺苯基二吡咯甲烷化合物配体(H2L1,H2L2),利用该配体与NiCl2·6H2O反应,分别得到2种新的配合物(NiL1,NiL2).X线单晶衍射结果表明,镍配合物NiL1和NiL2均属于单斜晶系、P2(1)/c空间群.NiL1的晶胞参数为a=0.865 61(18)nm,b=1.050 70(2)nm,c=2.758 2(5)nm,α=γ=90°,β=94.799(4)°,V=2.499 7(9)nm3,Z=4;NiL2的晶胞参数为a=1.615 43(5)nm,b=1.182 23(4)nm,c=1.407 15(5)nm,α=γ=90°,β=112.319 0(10)°,V=2.486 06(14)nm3,Z=4.在晶体结构中,Ni(II)离子分别与配体中的2个吡咯N以及2个亚胺N原子配位,形成平面四边形构型模式,其通过π…π及C—H…π作用形成二维结构. The ligand H2L1 and H2L2 were synthesized from dipyrromethane. NiCl2·6H2O react with H2L to give Ni( Ⅱ ) complexes NiL1 and NiL2. X-ray crystallographic studies revealed that both Ni( Ⅱ ) complexes belong to monoclinie, space group P2 (1)/c. The cell parameter of NiL^1: α = 0.865 61 (18) nm, b = 1.050 70 (2) nm, c =2.758 2 (5) nm, α = T = 90°, β = 94.799 (4)°, V = 2.499 7(9) nm^3, Z= 4. The cell parameter of NIL2: α = 1.615 43 (5) nm, b = 1.182 23(4) nm, c=1.407 15 (5) nm, α=γ =90°,β = 112.3190 (10)°, V=2.48606 (14) nm^3, Z=4 In the two structures, theNi ( Ⅱ ) complexes all consist of one dianionic ligand and an Ni (II) with square planar geometry by coordinating to two pyrrole and two imine nitrogen atoms, which are further assembled into two-dimensional structure via π…π and C-H…π interactions.
出处 《天津师范大学学报(自然科学版)》 CAS 2014年第2期85-88,共4页 Journal of Tianjin Normal University:Natural Science Edition
基金 国家自然科学基金资助项目(21172174 20702038)
关键词 二吡咯亚胺 金属配合物 晶体结构 X线单晶衍射法 dipyrrole imine metal complex crystal structure X-ray diffraction
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