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Electric field effects on 1-hydroxyacetone revealed by IR electroabsorption spectroscopy
Chemical Physics Letters ( IF 2.8 ) Pub Date : 2018-10-26 , DOI: 10.1016/j.cplett.2018.10.064
Hirotsugu Hiramatsu

Electric field effect was investigated on 1-hydroxyacetone (HA) as a model compound of the acyclic form of saccharide moiety employing infrared electroabsorption spectroscopy. We examined the structural tautomerization of the hydroxyacetyl group of HA in detail by monitoring change in IR absorption intensity of the C=O stretching band in the range of 1650-1850 cm–1. The observed changes in absorbance were analyzed by considering a change in the equilibrium of HA dimer, HA monomer, endiol, and enol forms, as well as the orientational polarization of each tautomer. Conversion from the HA dimer to the enol was detected.



中文翻译:

红外电吸收光谱显示电场对1-羟基丙酮的影响

使用红外电吸收光谱法研究了对1-羟基丙酮(HA)的电场效应,该化合物是无环形式的糖基部分的模型化合物。我们通过监测C = O拉伸带在1650-1850 cm –1范围内的IR吸收强度的变化,详细检查了HA的羟基乙酰基的结构互变异构。通过考虑HA二聚体,HA单体,烯醇和烯醇形式的平衡变化以及每个互变异构体的取向极化,来分析观察到的吸光度变化。检测到从HA二聚体到烯醇的转化。

更新日期:2018-10-26
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