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M_2L_4笼状双核Cu(Ⅱ)配合物的合成

Synthesis of a M_2L_4 Cage-like Dinuclear Cu(Ⅱ) Complex
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摘要 利用柔性配体[1,3-bis(1-imidazolylmethyl)-2,4,6-trimethylbenzene](m-bitmb)与Cu(Ⅱ)金属盐,合成了配合物[Cu_2(m-bitmb)_4]I_4·3H_2O。每个配体m-bitmb采取顺式构象与2个Cu(Ⅱ)离子配位,每个Cu(Ⅱ)离子与4个配体的配位N原子以平面四边形方式配位,2个Cu(Ⅱ)离子与4个配体形成1个Cu_2L_4超分子阳离子笼。每个超分子笼中包裹了1个I-离子,I-离子与Cu(Ⅱ)离子有弱的相互作用。有趣的是,CuI_2分子存在于相邻的链间。相邻的4个笼之间,苯环平面存在着微弱的π…π相互作用。 The flexible bidentate ligand [ 1,3-bis ( 1 -imidazolylmethyl ) -2,4,6- trimethylbenzene ] ( m- bitmb) assembles with Cu (Ⅱ ) to give a complex [Cu2 (m-bitmb)4 ] I4· 3H20. In the title complex, each ligand m-bitmb adopts cis, cis-conformation and binds with two Cu( Ⅱ) ions via its two arms and each Cu ( Ⅱ ) ion coordinates with four ligands in square planar geometry to form a Cu2L4 cage-like supramolecular cation. A I- anion is encapsulated within the macrocyclic cation [ Cu2 (m-bitmb) 4 ] 4 + with weak Cu…… I in- teractions. Weak π…π interactions are observed between the phenyl rings of a Cu2L4 cage and its four nea- rest cationic cages.
出处 《常州工学院学报》 2016年第5期58-61,共4页 Journal of Changzhou Institute of Technology
关键词 Cu(Ⅱ)配合物 CuI2 Cu ( Ⅱ ) complex cage CuI2
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