Coherent Raman beat and ESEEM EPR spectroscopy applied to a transition metal complex: comparisons of sensitivity and spectral resolution

Coherent Raman beats (CRB) resulting from 14N hyperfine interactions have been observed in the EPR spectrum of the S = 1 2 state of a mixed valence di-μ-oxo bridged Mn(III, IV) bipyridyl dimer at X-band (9 GHz) and the results compared with those obtained from three-pulse electron spin echo envelope...

Full description

Saved in:
Bibliographic Details
Published in:Chemical physics letters 1995-09, Vol.243 (5), p.480-485
Main Authors: Burghaus, Olaf, Klein, Melvin P.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Coherent Raman beats (CRB) resulting from 14N hyperfine interactions have been observed in the EPR spectrum of the S = 1 2 state of a mixed valence di-μ-oxo bridged Mn(III, IV) bipyridyl dimer at X-band (9 GHz) and the results compared with those obtained from three-pulse electron spin echo envelope modulation (ESEEM) data recorded under similar conditions. The spectral resolution of the CRB data were ≈-fold superior-to the ESEEM while the signal-to-noise ratio was enhanced by a factor of ≈40. The resolution improvement derives from the fact that the CRBs can persist for times approaching the electron T 1 while the decay of the ESE envelope is limited by spectral diffusion. CRB detection benefits from a multiplex advantage relative to ESEEM.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(95)00800-J