The results of SCF MO c~cu~atio~ on excited S-S and T-T tra~i~o~ are compared with ex'peri- meats for l,2 :3,4\_dibemanthracene, l,l2-banzperylone and 3.Gbenzcoronene. The ngreement is rensannbla for the triplet but lees satisfactory for the sing!et trunsitious. The conditiana under which simflnrit
Excited singlet state polarization and absorption spectra of 1,2-benzcoronene, 1,12-benzperylene and 1,2:3,4-dibenzanthracene
✍ Scribed by D. Lavalette; C.J. Werkhoven; D. Bebelaar; J. Langelaar; J.D.W. Van Voorst
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 314 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The direction of polarization and the oscillator strengths of the S +-Sl absorption spectra df 1,2benzcoronene, 1,12_benzperylene and 1,2:3.4-dibenzsnthracene in t'he region 15 000 -25 000 cm-l are reported.
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## Abstract Comparison of the NMR spectra of 3‐methyl‐1,2,3,4,6,7,12,12b‐octahydropyrimido [1′,6′ : 1,2]pyrido[3,4‐__b__] indol‐2‐one and of __cis__‐(H‐6, H‐12b)‐3,6‐dimethyl‐ 1,2,3,4,6,7,12,12b‐octahydropyrimido [1′,6′:1,2]pyrido[3,4‐__b__] indol‐2‐one shows the former to exist in solution at 25°C