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Syntheiss and Solid-State NMR Studies of P-Vinylbenzylphosphonc Acid

机译:对乙烯基苄基磷酸的合成及固态NMR研究

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摘要

p-Vinylbenzylphosphonic acid (2) was synthesized and crystallizedin two phases A and B. The latter phase was easily converted into the former. Both phases were investigated by IR and solid-state ~31P and ~1H NMR spectroscopy, and X-ray crystallography. The use of recently developed NMR methods has enabled us to increase the usually poor resolution of solid-state ~1H spectra. This gave additional insights on the proton environments. In particular, two dimensional 2D ~1H-~31P heteronuclear correlation (HETCOR) experiments, incorporating a Lee-Golburg homonuclear decoupling scheme, allowed description of the mixture of phase A and B.
机译:合成了对乙烯基苄基膦酸(2),并在两相A和B中结晶。后一相易于转化为前一相。通过红外和固态〜31P和〜1H NMR光谱以及X射线晶体学研究了这两个相。最近开发的NMR方法的使用使我们能够提高固态〜1H光谱通常较差的分辨率。这为质子环境提供了更多的见解。特别地,二维二维1D〜1H-〜31P异核相关(HETCOR)实验结合了Lee-Golburg同核解耦方案,可以描述A相和B相的混合物。

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