Abstract
The spectra of 20 purines and pyrimidines with chloranil, bromanil,
and p-benzoquinone in dimethyl sulphoxide were studied. Most of the systems exhibited
absorption bands which were concluded to be charge transfer in nature. The ionization energies of
the molecules, derived from the positions of the bands, correlated well with
the highest occupied molecular orbital energies calculated using the simple H�ckel method and were also in good agreement with
ionization energy values calculated by a semi-empirical self-consistent field
method.
Cited by
24 articles.
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