Spectral signatures of inter-system crossing mediated by energetically distant doorway levels: examples from the acetylene S1 state |
| |
Authors: | Bittinger Kyle L Virgo Wilton L Field Robert W |
| |
Institution: | Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. |
| |
Abstract: | We review recent research on the acetylene S(1) state that illustrates how mechanistic rather than phenomenological information about intersystem crossing (ISC) may be obtained directly from frequency-domain spectra. The focus is on the dynamically rich "doorway-mediated" ISC domain that lies between isolated spectroscopic spin-orbit perturbations and statistical-limit interactions between one singlet "bright state" and a quasi-continuum of triplet "dark states". New and improved experimental and data processing techniques permit the statistical-model curtain to be drawn back to reveal mechanistically explicit pathways via one or more identifiable, hence, manipulatable, doorway states, between a user-selected bright state and the undifferentiated bath of dark states. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|