Electron-Nuclear Double-Resonance Determination of theC13andH1Hyperfine Tensors for Polyacetylene

1983 ◽  
Vol 50 (7) ◽  
pp. 533-536 ◽  
Author(s):  
H. Thomann ◽  
L. R. Dalton ◽  
Y. Tomkiewicz ◽  
N. S. Shiren ◽  
T. C. Clarke
Keyword(s):  
Double Resonance ◽  
Electron Nuclear Double Resonance

Determination of the g-matrix orientation in flavin radicals by high-field/high-frequency electron-nuclear double resonance

2005 ◽  
Vol 43 (S1) ◽  
pp. S96-S102 ◽  
Author(s):  
Christopher W. M. Kay ◽  
Erik Schleicher ◽  
Kenichi Hitomi ◽  
Takeshi Todo ◽  
Robert Bittl ◽  
...  
Keyword(s):  
High Frequency ◽  
High Field ◽  
Double Resonance ◽  
Electron Nuclear Double Resonance ◽  
Matrix Orientation

Unambiguous Determination of theg-Matrix Orientation in a Neutral Flavin Radical by Pulsed Electron−Nuclear Double Resonance at 94 GHz

2005 ◽  
Vol 127 (31) ◽  
pp. 10780-10781 ◽  
Author(s):  
Christopher W. M. Kay ◽  
Robert Bittl ◽  
Adelbert Bacher ◽  
Gerald Richter ◽  
Stefan Weber
Keyword(s):  
Double Resonance ◽  
Electron Nuclear Double Resonance ◽  
Unambiguous Determination ◽  
Matrix Orientation

ELECTRON NUCLEAR DOUBLE RESONANCE SPECTROSCOPY OF SOLITONS AND POLARONS IN CONJUGATED POLYMERS

1995 ◽  
Vol 09 (03) ◽  
pp. 221-260 ◽  
Author(s):  
SHIN-ICHI KURODA
Keyword(s):  
Conjugated Polymers ◽  
Electron Correlation ◽  
Double Resonance ◽  
Resonance Spectroscopy ◽  
Electron Nuclear Double Resonance ◽  
Localized Excitations ◽  
Oriented Samples ◽  
Unique Method ◽  
Spin Distributions

Novel elementary excitations such as solitons and polarons in conjugated polymers carry unpaired electrons. In this case electron nuclear double resonance (ENDOR) of protons on the conjugated chain provides a unique method to observe their wavefunctions. This information has two significant meanings. Firstly, it gives the spatial extension of solitons and polarons, the quantity that is essential in examining the reality of these self-localized excitations. Secondly, it directly probes the degree of electron correlation. In the case of finite electron correlation, negative spin sites appear in the spin-density distribution. The unique and detailed determination of the wavefunctions containing such information can be made only after the careful studies of oriented polymers because of the non-single-crystalline nature of these materials. In this article I review our ENDOR studies on solitons in polyacetylene and polarons in poly(paraphenylene vinylene), performed using stretch-oriented samples. All the analyses are based on the properties of π-electrons which show characteristic anisotropy in oriented samples. The observed spin distributions are compared with theoretical results as well as shown as the basis for further analyses of conjugated polymers.

Determination of thePInantisite structure in InP by optically detected electron-nuclear double resonance

1987 ◽  
Vol 36 (2) ◽  
pp. 1324-1327 ◽  
Author(s):  
D. Y. Jeon ◽  
H. P. Gislason ◽  
J. F. Donegan ◽  
G. D. Watkins
Keyword(s):  
Double Resonance ◽  
Electron Nuclear Double Resonance ◽  
Optically Detected
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