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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Chiral recognition of amino acid esters by a novel oxalic amide-linked bisporphyrin
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Chiral recognition of amino acid esters by a novel oxalic amide-linked bisporphyrin

机译:新型草酸酰胺连接双卟啉对氨基酸酯的手性识别

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摘要

A novel oxalic amide-linked bisporphyrinate 1 has been designed and synthesized, which shows chiral recognition ability for amino acid ethyl esters. The structure of complex 1·(d-Phe-OEt)(l-Phe-OEt) has been solved by X-ray crystallography. It reveals the following information: bisporphyrin unit adopts anti-configuration; compound 1 forms 1: 2 complex with amino acid ethyl esters; one important hydrogen bond is formed between the coordinated nitrogen of amino acid ester and carbonyl oxygen in the amide group. The chiral recognition mechanism has been further investigated by UV-Vis spectra, ~1H NMR and DFT/TDDFT calculations.
机译:设计并合成了一种新型的草酰胺键联的双卟啉酸酯1,它显示出对氨基酸乙酯的手性识别能力。配合物1·(d-Phe-OEt)(1-Phe-OEt)的结构已通过X射线晶体学解决。它揭示了以下信息:双卟啉单元采用反构型;化合物1与氨基酸乙酯形成1∶2配合物;在氨基酸酯的配位氮和酰胺基团的羰基氧之间形成一个重要的氢键。通过UV-Vis光谱,〜1H NMR和DFT / TDDFT计算进一步研究了手性识别机理。

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