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首页> 外文期刊>Acta crystallographica. Section C, Structural chemistry. >Two cadmium(II) fluorous coordination compounds tuned by different bipyridines
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Two cadmium(II) fluorous coordination compounds tuned by different bipyridines

机译：两个镉（II）由不同的Bi0滤网调节的荧光配位化合物

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Fluorine is the most electronegative element and can be used as an excellent hydrogen-bond acceptor. Fluorous coordination compounds exhibit several advantageous properties, such as enhanced high thermal and oxidative stability, low polarity, weak intermolecular interactions and a small surface tension compared to hydrocarbons. C-H ??? F-C interactions, although weak, play a significant role in regulating the arrangement of the organic molecules in the crystalline state and stabilizing the secondary structure. Two cadmium(II) fluorous coordination compounds formed from 2,2'-bipyridine, 4,4'-bipyridine and pentafluorobenzoate ligands, namely catena-poly[[aqua(2,2'-bipyridine-kappa~2 N,N')(2,3,4,5,6-pentafluorobenzoato-kappaO)cadmium(II)]-mu-2,3,4,5,6-pentafluoro-benzoato-kappa~2O:O'], [Cd(C_7F_5O_2)_2(C_10H_8N_2)(H_2O)]_n, (1), and catena-poly[[diaqua-bis(2,3,4,5,6-pentafluorobenzoato-kappaO)cadmium(II)]-mu-4,4/-bipyridine-kappa~2 N:N'], [Cd(C_7F_5O_2)_2(C_10H_8N_2)(H_2O)_2]_n, (2), have been synthesized solvothermally and structurally characterized. Compound (1) shows a one-dimensional chain structure composed of Cd-O coordination bonds and is stabilized by it-it stacking and O-H ??? O hydrogen-bond interactions. Compound (2) displays a one-dimensional linear chain structure formed by Cd-N coordination interactions involving the 4,4'-bipyridine ligand. Adjacent one-dimensional chains are extended into two-dimensional sheets by O-H ??? O hydrogen bonds between the coordinated water molecules and adjacent carboxylate groups. Moreover, the chains are further linked by C-H ??? F-C interactions to afford a three-dimensional network. In both structures, hydrogen bonding involving the coordinated water molecules is a primary driving force in the formation of the supramolecular structures.
机译：氟是最电极的元素，可用作优异的氢键受体。氟配位化合物表现出几种有利的性质，例如增强的高热和氧化稳定性，低极性，弱分子间相互作用和小表面张力与烃相比。 c-h ??? F-C相互作用虽然弱，在调节结晶状态下的有机分子的布置并稳定二次结构时起着重要作用。两种镉（II）荧光配位化合物由2,2'-硼吡啶，4,4'-硼吡啶和五氟苯甲酸酯配体形成，即Catena-Poly [[Aqua（2,2'-Bibyridine-κ〜2 n，n'） （2,3,4,5,6-五氟氟苯并透露 - 喀普萨）镉（II）] - MU-2,3,4,5,6-五氟 - 奔甲kappa〜2o：O']，[CD（C_7F_5O_2） _2（C_10H_8N_2）（H_2O）] _ N，（1）和CATEA-POLY [【DAIQUA-BIS（2,3,4,5,6-五氟苯苯甲酰透法 - kappao）镉（II）] - mu-4,4 / - 吡啶-Kappa〜2 n：n']，[Cd（C_7F_5O_2）_2（C_10H_8N_2）（H_2O）_2] _N，（2）已被合成溶于热量和结构表征。化合物（1）表示由CD-O配位键组成的一维链结构，并通过IT堆叠和O-H稳定而稳定。 o氢键相互作用。化合物（2）显示通过涉及4,4'-硼吡啶配体的CD-N配位相互作用形成的一维线性链结构。邻近的一维链通过O-H延伸成二维纸张??? o配位水分子和相邻羧酸盐之间的氢键。此外，链条通过C-H进一步连接F-C交互以提供三维网络。在两个结构中，涉及协调水分子的氢键是在形成超分子结构的初级驱动力。

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