CAJ | 학술논문

实验检测了波长为245 nm的紫外光激发乙醚-水溶液的荧光光谱.在二阶导数分析的基础上,对乙醚-水溶液的荧光光谱作高斯分解,获得了7条高斯谱线并测定了各自的的中心波长、谱峰强度和半峰宽度.利用高斯基元参数进行了多峰高斯拟合,计算了各高斯谱线对应的基态中最高和最低振动能级差.研究发现,溶液中乙醚分子与水分子以不同的方式结合可以形成7种能发射荧光的缔合分子,其对应的最佳吸收波长不同,引起高斯谱线的半峰宽度各异,中心波长位于304 nm的高斯谱线对应的能级差最大.研究结果为乙醚一水溶液中分子缔合结构的进一步研究提供了参考.
실험검측료파장위245 nm적자외광격발을미-수용액적형광광보.재이계도수분석적기출상,대을미-수용액적형광광보작고사분해,획득료7조고사보선병측정료각자적적중심파장、보봉강도화반봉관도.이용고사기원삼수진행료다봉고사의합,계산료각고사보선대응적기태중최고화최저진동능급차.연구발현,용액중을미분자여수분자이불동적방식결합가이형성7충능발사형광적체합분자,기대응적최가흡수파장불동,인기고사보선적반봉관도각이,중심파장위우304 nm적고사보선대응적능급차최대.연구결과위을미일수용액중분자체합결구적진일보연구제공료삼고.
The fluorescence spectrum of the ether-water solution excited by the ultraviolet light with the wave-length of 245 nm is experimentally detected.Based on the second derivative analysis,the fluorescence spectrum of the ether-water solution is used as Gaussian decomposition and seven Gaussian spectral lines are obtained.The center wavelength,the peak intensity and the half peak bandwidth of each Gaussian spectral line are measured,and the multi-peak fitting is made by using Gaussian primitive parameters.The highest and the lowest oscillation energy level differences in the ground state of each Gaussian spectrum are calculated.It is found that there are seven types of luminescent association molecules formed by ether and water molecules in different configurations existed in the solution.The location of each optimum absorption wavelength and the half peak bandwidth of the Gaussian spectral line is different.The energy level difference with the central wavelength of 304 nm attains the maximum value.The result can contribute to the study of the molecular association in ether-water solution.