Mechanically Responsive Crystalline Coordination Polymers with Controllable Elasticity,Angewandte Chemie International Edition

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Mechanically Responsive Crystalline Coordination Polymers with Controllable Elasticity
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-10-17 , DOI: 10.1002/anie.201808687
Marijana Đaković ₁ , Mladen Borovina ₁ , Mateja Pisačić ₁ , Christer B. Aakeröy ₂ , Željka Soldin ₁ , Boris-Marko Kukovec ₃ , Ivan Kodrin ₁

Affiliation

Crystalline coordination polymers tend to be brittle and inelastic, however, we now describe a family of such compounds that are capable of displaying mechanical elasticity in response to external pressure. The design approach successfully targets structural features that are critical for producing the desired mechanical output. The elastic crystals all comprise 1D cadmium(II) halide polymeric chains with adjacent metal centres bridged by two halide ions resulting in the required stacking interactions and short “4 Å” crystallographic axes. These polymeric chains (structural “spines”) are further organized via hydrogen bonds and halogen bonds perpendicular to the direction of the chains. By carefully altering the strength and the geometry of these non‐covalent interactions, we have demonstrated that it is possible to control the extent of elastic bending in crystalline coordination compounds.

中文翻译：

具有可控弹性的机械响应性结晶配位聚合物

结晶配位聚合物倾向于是脆性和无弹性的，但是，我们现在描述一类这样的化合物，其能够响应于外部压力而显示出机械弹性。该设计方法成功地针对了对于产生所需机械输出至关重要的结构特征。弹性晶体均包含一维卤化镉（II）聚合物链，相邻的金属中心由两个卤化物离子桥接，从而导致所需的堆叠相互作用和短的“ 4”结晶轴。这些聚合物链（结构“脊柱”）通过垂直于链方向的氢键和卤素键进一步组织。通过仔细改变这些非共价相互作用的强度和几何形状，

更新日期：2018-10-17

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