Anion Binding Induces Helicity in a Hydrogen-Bonding Receptor: Crystal Structure of a 2,6-Bis(anilinoethynyl)pyridinium Chloride
Anion Binding Induces Helicity in a Hydrogen-Bonding Receptor: Crystal Structure of a 2,6-Bis(anilinoethynyl)pyridinium Chloride
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DOI：
10.1021/cg900674p
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发表时间：
2009-10-01
影响因子：
3.8
通讯作者：
Johnson, Darren W.
中科院分区：
文献类型：
--
作者：
Johnson, Charles A., II;Berryman, Orion B.;Johnson, Darren W.
本文报道了2，6-二（苯胺乙炔基）吡啶酰胺1的合成及其固态化。中性受体1在固态下通过氢键和π堆积形成聚合物链。质子化后，受体1发生显著的构象重排，形成氢键与Cl-，形成螺旋（H1（+）Cl（-））。这一罕见的例子阴离子诱导螺旋详细的固态和初始溶液的研究。
The synthesis and solid-state of 2,6-bis(anilinoethynyl)pyridine amide 1 is presented. Neutral receptor 1 forms a polymeric chain through hydrogen bonds and pi stacking in the solid state. Upon protonation, receptor 1 undergoes significant conformational rearrangement to hydrogen bond to Cl-, forming it helix (H1(+)Cl(-)). This rare example of anion-induced helicity is detailed in the solid state and initial solution studies are presented.