The reactions of (R)‐ and (S)‐4‐(1‐carboxyethoxy)benzoic acid (H₂CBA) with 1,3‐bis(2‐methyl‐1H‐imidazol‐1‐yl)benzene (1,3‐BMIB) ligands afforded a pair of homochiral coordination polymers (CPs), namely, poly[[[μ‐1,3‐bis(2‐methyl‐1H‐imidazol‐1‐yl)benzene][μ‐(S)‐4‐(1‐carboxylatoethoxy)benzoato]zinc(II)] monohydrate], {[Zn(C₁₀H₈O₅)(C₁₄H₁₄N₄)]·H₂O}_n or {[Zn{(S)‐CBA}(1,3‐BMIB)]·H₂O}_n (1‐L), and poly[[[μ‐1,3‐bis(2‐methyl‐1H‐imidazol‐1‐yl)benzene][μ‐(R)‐4‐(1‐carboxylatoethoxy)benzoato]zinc(II)] monohydrate] (1‐D). Three kinds of helical chains exist in compounds 1‐D and 1‐L, which are constructed from Zn^II atoms, 1,3‐BMIB ligands and/or CBA²⁻ ligands. When the as‐synthesized crystals of 1‐L and 1‐D were further heated in the mother liquor or air, poly[[μ‐1,3‐bis(2‐methyl‐1H‐imidazol‐1‐yl)benzene][μ‐(S)‐4‐(1‐carboxylatoethoxy)benzoato]zinc(II)], [Zn(C₁₀H₈O₅)(C₁₄H₁₄N₄)]_n or [Zn{(S)‐CBA}(1,3‐BMIB)]_n (2‐L), and poly[[μ‐1,3‐bis(2‐methyl‐1H‐imidazol‐1‐yl)benzene][μ‐(R)‐4‐(1‐carboxylatoethoxy)benzoato]zinc(II)] (2‐D) were obtained, respectively. The single‐crystal structure analysis revealed that 2‐L and 2‐D only contained one type of helical chain formed by Zn^II atoms and 1,3‐BMIB and CBA²⁻ ligands, which indicated that the helical chains were reconstructed though solid‐to‐solid transformation. This result not only means the realization of helical transformation, but also gives a feasible strategy to build homochiral CPs.

中文翻译：

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螺旋同手性配位聚合物中温度诱导的固-固转变。

（R）-和（S）-4-（1-羧基乙氧基）苯甲酸（H ₂ CBA）与1,3-双（2-甲基-1 H-咪唑-1-基）苯的反应（1， 3-BMIB）配体提供了一对同手性配位聚合物（CPs），即聚[[[[-1,3-双（2-甲基-1 H-咪唑-1-基）苯]] [μ（S）-4-（1-羧基乙氧基乙氧基）苯并[zinc（II）]一水合物]，{[Zn（C ₁₀ H ₈ O ₅）（C ₁₄ H ₁₄ N ₄）]·H ₂ O} _n或{[Zn { （S）-CBA}（1,3-BMIB）]·H ₂ O} _n（1-L）和聚[[[[μ-1,3-双（2-甲基-1 H-咪唑-1-基）苯]] [μ（（R）-4-（1-羧基乙氧基乙氧基）苯并[ ]]锌（II） [一水合物]（1‐D）。化合物1-D和1-L中存在三种螺旋链，它们由Zn ^II原子，1,3-BMIB配体和/或CBA ^2-配体构成。在母液或空气中进一步加热1-L和1-D的合成晶体时，聚[[μ-1,3-双（2-甲基-1 H-咪唑-1-基）苯] [μ-（S）-4-（1-羧甲基乙氧基）苯并[z]（II）]，[Zn（C ₁₀ H ₈ O ₅）（C₁₄ H ₁₄ N ₄）] _n或[Zn {（S）-CBA}（1,3-BMIB）] _n（2-L）和聚[[μ-1,3-二（2-甲基-1）分别获得了H-咪唑-1-基）苯] [μ-（R）-4-（1-羧甲乙氧基）苯并]锌（II）]（2-D）。单晶结构分析表明，2-L和2-D仅包含一种由Zn ^II原子和1,3-BMIB和CBA ^2-组成的螺旋链。配体，表明螺旋链是通过固-固转化而重建的。该结果不仅意味着螺旋转化的实现，而且为构建同手性CP提供了可行的策略。