Remarkable effects of solvent and substitution on the photo-dynamics of cytosine: a femtosecond broadband time-resolved fluorescence and transient absorption study

• DOI: 10.1039/c5cp02624e
• Publication Date: 2015-06-22T16:00:51Z
• Authors: Chensheng Ma; Chopen Chan-Wut C...; Chris Tsz-Leung Chan; Ruth Chau-Ting Chan; Wai-Ming Kwok
• Keywords: Cytosine; Spectrometry, Fluorescence; Time Factors; Molecular Structure; Methanol; Solvents; Water; Photochemical Processes; 01 natural sciences; Fluorescence; 0104 chemical sciences

Solvent alters differently the rate of ππ* and nπ* decay while substitution enhances or eliminates the nπ* from cytosine nonradiative deactivation.