The fluorescence excitation spectrum of s-tetrazine cooled in a supersonic free jet |
| |
Authors: | Richard E Smalley Lennard Wharton Donald H Levy Dean W Chandler |
| |
Institution: | 1. The James Franck Institute, The University of Chicago, Chicago, Illinois 60637 USA;2. The Department of Chemistry, The University of Chicago, Chicago, Illinois 60637 USA |
| |
Abstract: | The fluorescence excitation spectrum of the transition in s-tetrazine has been observed and measured. The sample was cooled to a rotational temperature of <1 K by expansion in a supersonic free jet. In this way the rotational structure arising from asymmetry split low J lines could be observed. The rotational A and B axes of the 2H112C214N4 isotope were observed to interchange upon electronic excitation and a theory describing the effect of this interchange upon the optical selection rules has been developed. Analysis of the resolved rotational structure suggests that the geometry change upon electronic excitation is smaller than that deduced from previous analysis of the room temperature optical spectrum. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |