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首页> 外文期刊>Crystal growth & design >One-dimensional double helical structure and 4-fold type [2+2] interpenetration of diamondoid networks with helical fashion
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One-dimensional double helical structure and 4-fold type [2+2] interpenetration of diamondoid networks with helical fashion

机译:一维双螺旋结构和螺旋形菱形网络的4倍型[2 + 2]互穿

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摘要

We have prepared unique homochiral structures by the self-assembly of a modified amino acid derivative (terephthaloylnionoalanine, L-TMA) with metal ions such as Zn(II) and Cd(II). An L-TMA ligand and Zn(II) ions formed a left-handed, homochiral, double helical chain. However, while L-TMA and Cd(II) ions topologically formed a diamondoid Cd-L-TMA network with 4-fold type [2 + 2] interpenetration, Cd-L-TMA can be morphologically considered as a three-dimensional network of left-handed, double helices. The double helical structure of Zn-L-TMA originated from the self-assembly of individual helical chains by hydrogen bonds and pi-pi interactions, whereas the double helical structures of Cd-L-TMA were observed in an interpenetrating diamondoid net.
机译:我们通过与金属离子(例如Zn(II)和Cd(II))修饰的氨基酸衍生物(对苯二甲酰亚氨基丙氨酸,L-TMA)的自组装制备了独特的同手性结构。 L-TMA配体和Zn(II)离子形成左手的同手性双螺旋链。但是,虽然L-TMA和Cd(II)离子在拓扑上形成了具有4倍[2 + 2]型互穿的类金刚石Cd-L-TMA网络,但Cd-L-TMA可以在形态上被认为是3D的三维网络。左撇子,双螺旋。 Zn-L-TMA的双螺旋结构起源于单个螺旋链通过氢键和pi-pi相互作用的自组装,而Cd-L-TMA的双螺旋结构则在互穿的类金刚石网中观察到。

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