Novel CuI Ethylene Complexes with 6,6′‐Diphenyl‐4,4′‐bipyrimidine Three‐Dimensionally Self‐Assembled by an Intermolecular π‐π Stacking Interaction and a C–H···N Contact
Novel CuI Ethylene Complexes with 6,6′‐Diphenyl‐4,4′‐bipyrimidine Three‐Dimensionally Self‐Assembled by an Intermolecular π‐π Stacking Interaction and a C–H···N Contact
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DOI：
10.1002/ejic.200900533
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发表时间：
2009-10
影响因子：
2.3
通讯作者：
M. Maekawa;T. Tominaga;T. Okubo;T. Kuroda–Sowa;M. Munakata
中科院分区：
文献类型：
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作者：
M. Maekawa;T. Tominaga;T. Okubo;T. Kuroda–Sowa;M. Munakata
合成了4种新型的CuI-Ph 2bpm/C2 H4加合物[Cu（Ph 2bpm）（C2 H4）]X [X = BF 4（1a，1b），ClO 4（2），PF 6（3）; Ph 2bpm = 6，6 ′-二苯基-4，4 ′-联嘧啶]，并通过X射线衍射、1HNMR、IR和TG-DTA等手段对它们进行了表征。CuI-Ph_2bpm/C_2H_4配合物1a、1b、2和3的分子结构基本相似：Cu原子与Ph_2bpm螯合位上的两个N原子和C_2H_4的C=C键配位，均为三角平面构型。有趣的是，它们的晶体堆积结构与分子间π-π堆积相互作用和C-H···N接触的连接方式有很大不同，导致CuI-C2 H4加合物的自组装具有独特的三维网络结构。X-射线衍射、1H NMR、IR数据支持较大的CuIC_2 H_4 π反馈键贡献是由释放电子的苯基引起的假设。（© Wiley-VCH Verlag GmbH & Co. KGaA，69451魏因海姆，德国，2009）
Four novel CuI–Ph2bpm/C2H4 adducts [Cu(Ph2bpm)(C2H4)]X [X = BF4 (1a, 1b), ClO4 (2) and PF6 (3); Ph2bpm = 6,6′-diphenyl-4,4′-bipyrimidine] were prepared and they have been characterized by X-ray, 1H NMR, IR and TG-DTA analyses. The molecular structures of CuI–Ph2bpm/C2H4 complexes 1a, 1b, 2 and 3 are essentially similar: the Cu atom is coordinated by two N atoms in the chelate site of Ph2bpm and the C=C bond of C2H4 in the trigonal-planar geometry. Interestingly, their crystal packing structures are much different from the connection manners of an intermolecular π–π stacking interaction and a C–H···N contact, resulting in the self-assembly of CuI–C2H4 adducts with a unique three-dimensional network structure. The X-ray, 1H NMR, IR data support the assumption that the contribution of the larger CuIC2H4 π back-donation bonding is induced by the electron-releasing phenyl group. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)