The polarized absorption, fluorescence a
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Francis P. Burke; Gerald J. Small; James R. Braun; Tien-Sung Lin
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Article
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1973
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Elsevier Science
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English
β 513 KB
From mixed crystal polarization studies, the lolvesr energy absorption system of 1,3-diazaazulene (cyclohcptimidrrzole) at 4500 A is assigned 3s ' Br (Rn\*j + 'At. The Bt symmetry and oscillator strength of the 4500 A state, together with polarization data on other azaazulenes, clearly indicate a co