Structure of 3,4-diphenyl-1,2,4-oxadiazol-5-one
β Scribed by Bel Hadj Amor, A. ;Kallel, A. ;Baccar, B. ;Driss, A. ;Gilmore, C. J.
- Book ID
- 114504661
- Publisher
- International Union of Crystallography
- Year
- 1987
- Tongue
- English
- Weight
- 326 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0108-2701
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π SIMILAR VOLUMES
## Abstract 3β(2βalkenoyl)βthiocarbazic acid Oβmethyl esters **1** are desulfurated by bromine and the unknown intermediates are transformed by alkali to 5β(1βalkenyl)β1, 3, 4βoxadiazolβ2(3__H__)βones (**2**). This type of oxadiazolone substitution is not realizable by the common ring closure of hy
4 theoretics1 spprosch using a SCF Ci method has been used to analyse the Tt -T,, absorption spectrum of Z,Sdiphcnyl-1,3.4-oxadiazole. In its fist rriplct state in ;1 non-polarsolvent, thismoleculcis strongly non-plsnar\_This conclusion is corroborated by comparison of the fluorescence and phosphore