The pentachlorocyclopentadienyl radical

The ESR spectrum at room temperature and the absorption spectrum at 77°K of the pentachlorocyclopentadienyl radical C 5Cl 5 is reported. The isotropic g value g = 2.008 ± 0.001 and the chlorine splittings a( 35Cl) = 2.35 ± 0.05 gauss and a( 37Cl) = 1.93 ± 0.05 gauss are consistent with a D 5h symmet...

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Bibliographic Details
Published in:Chemical physics letters 1970-10, Vol.7 (1), p.25-28
Main Authors: Graf, F., Gunthard, Hs.H.
Format: Article
Language:English
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Summary:The ESR spectrum at room temperature and the absorption spectrum at 77°K of the pentachlorocyclopentadienyl radical C 5Cl 5 is reported. The isotropic g value g = 2.008 ± 0.001 and the chlorine splittings a( 35Cl) = 2.35 ± 0.05 gauss and a( 37Cl) = 1.93 ± 0.05 gauss are consistent with a D 5h symmetry. The polarization parameters of the Karplus-Fraenkel formula have been determined by two-dimensional regression analysis to Q Cl CCl = −5.0 ± 0.8 gauss and Q Cl Cl = 54 ± 4 gauss respectively.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(70)80239-1