SOME ASPECTS OF TRANSITIONS BETWEEN ELECTRONIC LEVELS,

Abstract

The transitions between electronic levels of polyatomic molecules and their relationship to the photochemistry of such molecules are considered. These transitions often occur without emission or absorption of radiation so that the state first formed by the absorption of radiation may not be the one most concerned with the resulting reaction kinetics. The present discussion reviews the data for a few polyatomic molecules, i.e., ketene, acetone, biacetyl, benzene, and ketones with C atoms to the carbonyl group, to determine both the extent of and the character of intersystem cross-overs and of internal conversions. The terms internal conversion and intersystem cross-over refer to a nonradiative transition between states of the same multiplicity and of different multiplicity, respectively. The scope of the subject is limited to the gas phase. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1964
Accession Number
AD0617988

Entities

People

  • I. Unger
  • W. Albert Noyes Jr.

Organizations

  • University of Texas at Austin

Tags

DTIC Thesaurus Topics

  • Absorption
  • Chemical Kinetics
  • Chemistry
  • Conversion
  • Emission
  • Internal Conversion
  • Kinetics
  • Molecules
  • Personality
  • Photochemistry
  • Physical Chemistry
  • Polyatomic Molecules
  • Radiation
  • Transitions

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry
  • Spectroscopy.
  • Systems Analysis and Design

Technology Areas

  • Microelectronics