标题： 甘氨酸及其他选定氨基酸中远红外光谱的摩尔吸光系数整合 显示英文标题

标题： Integrated molar absorptivity of mid- and far-infrared spectra of glycine and other selected amino acids

摘要： 五种蛋白源性氨基酸，即甘氨酸、异亮氨酸、苯丙氨酸、酪氨酸和色氨酸，在中红外和远红外区域进行了研究，目的是有助于在太空环境中寻找和识别这些与天体生物学和天体化学相关的分子。 所有中红外和远红外带的摩尔消光系数（{\epsilon }）都被确定，以及积分摩尔吸收率（{\psi }）。 这五种选定氨基酸的中红外光谱也在三个不同温度下进行记录，从-180{\deg }C到室温再到+200{\deg }C。我们测量了由温度引起的红外带波长偏移，并且对于最相关或对温度敏感的红外带，确定了一系列线性方程，将波长位置与温度相关联。 这些方程可能在这些分子被检测到的天体物理物体中提供其温度的估计值，并且利用报告的{\epsilon }和{\psi }的值，将能够估计这些分子在太空环境中的相对丰度。 显示英文摘要

摘要： A selection of five proteinogenic amino acids, namely glycine, isoleucine, phenylalanine, tyrosine and tryptophan were studied in the mid-infrared and in the far-infrared with the purpose to facilitate the search and identification of these astrobiological and astrochemical relevant molecules in space environments. The molar extinction coefficients ({\epsilon}) of all mid- and far-infrared bands were determined as well as the integrated molar absorptivities ({\psi}). The mid-infrared spectra of the five selected amino acids were recorded also at three different temperatures from -180{\deg}C to ambient temperature to +200{\deg}C. We measure the wavelength shift of the infrared bands caused by temperature and, for the most relevant or temperature-sensitive infrared bands, a series of linear equations were determined relating wavelength position with temperature. Such equations may provide estimates of the temperature of these molecules once detected in astrophysical objects and with the reported values of {\epsilon} and {\psi}, it will be possible to estimate the relative abundance of these molecules in space environments.