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Controlled Crystal Transformations of a Chiral Conglomerate with Heterotactic Helical Coordination Arrays

机译:具有异型螺旋配位阵列的手性螺钉的控制晶体变换

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摘要

Helix represents the most essential molecular chiral symmetry at a supramolecular level. Here, a unique quasiracemate conglomerate {[Cd(L)I(H2O)(3)][Cd(HL)-I-2(H2O)2](H2O)(4)}(n) (1, HL = N-(3,5-di(pyridin-3-yl)-4H-1,2,4-triazol-4-yOnicotinamide), which crystallizes in P2(1) space group and consists of two different sets of helical enantiomers, has been successfully constructed. Remarkably, crystal transformations from the chiral quasiracemate 1 to two different achiral racemates {[Cd(L)I(H2O)(3)]center dot(H2O)(3)}(n) (2) and {[Cd(HL)I-2(H2O)(2)(H2O)}(n) (3) can be achieved controllably by introducing acid and base additives, via solvent-mediated crystal transformations.
机译:螺旋代表了超分子水平的最重要的分子手性对称。 这里,一种独特的Quasiracemate集光玻璃{[CD(1)I(H2O)(3)] [CD(HL)-I-2(H2O)2](H2O)(4)}(N)(1,HL = N. - (3,5-二(吡啶-3-基)-4H-1,2,4-三唑-4- yonicotinamide),其在P2(1)空间组中结晶,包括两组不同的螺旋映体组成 已成功构建。显着的,从手性Quasiracemate 1到两个不同的成分外消旋物{[CD(L)I(H2O)(3)]中心点(H2O)(3)}(N)(2)和{[ 通过溶剂介导的晶体转化,可以通过引入酸和碱添加剂来控制CD(HL)I-2(H2O)(2)(2)(3)(3)。

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  • 来源
    《Crystal growth & design》 |2018年第8期|共5页
  • 作者单位

    Tianjin Normal Univ MOE Coll Chem Key Lab Inorgan Organ Hybrid Funct Mat Chem Tianj Tianjin 300387 Peoples R China;

    Tianjin Normal Univ MOE Coll Chem Key Lab Inorgan Organ Hybrid Funct Mat Chem Tianj Tianjin 300387 Peoples R China;

    Tianjin Normal Univ MOE Coll Chem Key Lab Inorgan Organ Hybrid Funct Mat Chem Tianj Tianjin 300387 Peoples R China;

    Tianjin Normal Univ MOE Coll Chem Key Lab Inorgan Organ Hybrid Funct Mat Chem Tianj Tianjin 300387 Peoples R China;

    Tianjin Normal Univ MOE Coll Chem Key Lab Inorgan Organ Hybrid Funct Mat Chem Tianj Tianjin 300387 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
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