Redshift of Excitation Wavelength Caused by the Concentration of L-Tryptophan in Water: A Theoretical and Experimental Study

作     者：Diana Milena Uriza-Prias Antonio Méndez-Blas Juan Francisco Rivas-Silva Diana Milena Uriza-Prias;Antonio Méndez-Blas;Juan Francisco Rivas-Silva

作者机构：Instituto de Física “Luis Rivera Terrazas” Benemérita Universidad Autónoma de Puebla Puebla México 

出 版 物：《Open Journal of Physical Chemistry》 (物理化学期刊（英文）)

年 卷 期：2021年第11卷第2期

页      面：87-105页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：Excitation Spectra Tryptophan Concentration Polar Solvent Molecular Clusters Time-Dependent Density Functional Theory (TD-DFT) Methods Electronic Transitions Fluorescence 

摘      要：A redshift in the wavelength of excitation spectra is experimentally measured as a function of the concentration parameter for tryptophan solutions in water. To understand the microscopic causes of this behavior, theoretical calculations obtained from four model clusters are carried out: (Trp)1 - (H2O)9, (Trp)2 - (H2O)18, (Trpspa