Signs of the hyperfine interaction constants and the spin densities in phenoxyl radicals

1967 ◽  
Vol 8 (1) ◽  
pp. 26-28
Author(s):  
A. M. Vasserman ◽  
A. L. Buchachenko
Keyword(s):  
Hyperfine Interaction ◽  
Phenoxyl Radicals ◽  
Spin Densities

Fluorine Hyperfine Interaction in Aromatic Anion Radicals

1969 ◽  
Vol 24 (12) ◽  
pp. 1980-1988 ◽  
Author(s):  
J.P. Colpa ◽  
P. H. H. Fischer
Keyword(s):  
Hyperfine Interaction ◽  
Theoretical Estimate ◽  
Aromatic Radicals ◽  
Hyperfine Splittings ◽  
Two Parameters ◽  
Q Factors ◽  
Spin Densities ◽  
Anion Radicals

The relation between the fluorine hyperfine splittings in about 20 fluorine substituted aromatic radicals and the π spin densities calculated according to McLachlans method is analysed with an expression of the type aF = QFFF ρπFF + QFCC ρπCC + (QFFC + QFFC) ρπFC . For the Q factors the following values are obtained: QFFF =931 gauss; QFCC =86.6 gauss and (QFFC + QFFC) =345 gauss. Two simpler expressions with one and two parameters respectively are also tested. A theoretical estimate is made for the values of the Q factors and the results are compared with the values obtained semi-empirically.

ENDOR-Untersuchungen am metastabilen Triplett-Zustand des Naphthalin-Moleküls

1968 ◽  
Vol 23 (11) ◽  
pp. 1740-1746
Author(s):  
P. Ehret ◽  
H. C. Wolf
Keyword(s):  
Hyperfine Interaction ◽  
Triplet State ◽  
Excited Triplet State ◽  
Excited Triplet ◽  
Hyperfine Tensor ◽  
Doublet Splitting ◽  
Spin Densities

ENDOR-measurements of the photo-excited triplet state of naphthalene, 1-monodeutero-naphthalene and 1,4-dideutero-naphthalene in durene at 4.2°K are reported. The hyperfine interaction constants of α- and β-protons and α-deuterons, the corresponding spin densities and the axis of the hyperfine tensor are determined. A doublet splitting of all ENDOR lines indicates the existence of four (instead of two) inequivalent sites for naphthalene molecules in the durene matrix.

HYPERFINE INTERACTION STUDIES OF CHEVREL PHASE SUPERCONDUCTORS

1978 ◽  
Vol 39 (C6) ◽  
pp. C6-367-C6-368 ◽  
Author(s):  
C. W. Kimball ◽  
van Landuyt ◽  
C. Barnett ◽  
G. K. Shenoy ◽  
B. D. Dunlap ◽  
...  
Keyword(s):  
Hyperfine Interaction ◽  
Chevrel Phase ◽  
Interaction Studies

The electric hyperfine interaction in the F2-Molecule and in some tri- and tetrafluorides

1983 ◽  
Vol 16 (1-4) ◽  
pp. 901-906 ◽  
Author(s):  
H. Barfuß ◽  
G. Böhnlein ◽  
F. Gubitz ◽  
W. Kreische ◽  
B. Röseler
Keyword(s):  
Hyperfine Interaction

ENDOR of gadolinium ion in SrCl2: A study of the hyperfine interaction

1980 ◽  
Vol 37 (2) ◽  
pp. 195-204 ◽  
Author(s):  
D. Van Ormondt ◽  
K.V. Reddy ◽  
M.A. Van Ast ◽  
H.W. Den Hartog ◽  
E.J. Bijvank
Keyword(s):  
Hyperfine Interaction
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