Cooperative Effect of a Classical and a Weak Hydrogen Bond for the Metal-Induced Construction of a Self-Assembled β-Turn Mimic
作者:Andy C. Laungani、Manfred Keller、John M. Slattery、Ingo Krossing、Bernhard Breit
DOI:10.1002/chem.200900662
日期:2009.10.12
means of unprecedented multiple noncovalent interactions (classical hydrogen bond, weak hydrogen bond, metal coordination, π‐stacking interaction) was developed and investigated. Our results address the importance and capability of weak hydrogen bonds (WHBs) as important attractive interactions in self‐assembling processes based on molecular recognition. Together with a classical hydrogen bond, WHBs may
通过前所未有的多重非共价相互作用(经典氢键,弱氢键,金属配位,π堆积相互作用),开发并研究了一种新颖的金属诱导模板,用于两个独立的膦配体的自组装。我们的结果解决了弱氢键(WHBs)的重要性和能力,这是基于分子识别的自组装过程中重要的有吸引力的相互作用。WHB与经典的氢键一起,可作为将互补单体膦配体特异自组装成超分子杂化结构的促进剂。分子间C的形成通过X射线晶体分析,质谱和NMR光谱分析研究了H···N氢键及其在固态和溶液中的持久性。DFT计算证明了进一步的证据,该计算为提出的构象提供了特定的几何参数,并使我们能够估计参与分子识别过程的氢键所涉及的能量。所提出的模板可以看作是一种新型的自组装β-turn模拟物或超分子假氨基酸,用于在连接寡肽时使β-sheet结构成核。