Assignment of the charge-transfer excited states of bis(N-heterocyclic) complexes of copper(I)

Four title complexes were investigated spectroscopically to ascertain the natures of their singlet and triplet excited-state manifolds. Absorption (room temperature, RT) and luminescence (77 K) spectra were measured for all the species. Augmented by additional measurements for the bis(2,9-dimethyl-4...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physical chemistry (1952) 1989-07, Vol.93 (15), p.5692-5696
Main Authors: Parker, W. L, Crosby, G. A
Format: Article
Language:English
Subjects:
140501 - Solar Energy Conversion- Photovoltaic Conversion
400000 - Chemistry
400102 - Chemical & Spectral Procedures
ABSORPTION
Atomic and molecular physics
CHARGE TRANSPORT
COMPLEXES
CONVERSION
COPPER COMPLEXES
DATA
DATA ANALYSIS
ENERGY CONVERSION
ENERGY LEVELS
Exact sciences and technology
EXCITED STATES
EXPERIMENTAL DATA
INFORMATION
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
MEASURING INSTRUMENTS
MEASURING METHODS
MEDIUM TEMPERATURE
Molecular properties and interactions with photons
NUMERICAL DATA
Optical activity and dichroism
magnetooptical and electrooptical spectra
Physics
SOLAR ENERGY
SOLAR ENERGY CONVERSION
TRANSITION ELEMENT COMPLEXES
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Four title complexes were investigated spectroscopically to ascertain the natures of their singlet and triplet excited-state manifolds. Absorption (room temperature, RT) and luminescence (77 K) spectra were measured for all the species. Augmented by additional measurements for the bis(2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline)copper(I) ion (MCD (RT), excitation polarization measurements (100 K), and variations of both the emission spectra and the lifetimes as a function of temperature), group theoretical assignments of both the low-lying singlet and triplet charge-transfer states have been made. The model invokes a lowering of the symmetry from D{sub 2d} to D{sub 2} to account for the experimental observations.
ISSN:0022-3654
1541-5740
DOI:10.1021/j100352a012