Synthesis of two bis-m-quinomethanes. An experimental study of connectivity effects on the equal-parity criterion for low-spin ground states in alternant non-Kekule …

DE Seeger, PM Lahti, AR Rossi…

Index: Seeger,D.E.; Lahti,P.M.; Rossi,A.R. Journal of the American Chemical Society, 1986 , vol. 108, p. 1251

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Citation Number: 56

Abstract

Abstract: As tests of quantum mechanical theories that predict the spin of the ground state of non-Kekulb molecules, precursors to two such species were synthesized: the" C2/series, initiated by photolysis of lH, laH, 2H, 4H, 4aH, SH, SaH, 6bH-l, S-di-methylenedicycloprop [a, h]-s-indacene-2, 4-dione (13) to a primary triplet photolysis product, which upon selective further irradiation is converted to 3, 6-dimethyleneanthracenediyl-l, 8-dioxy (7), and the" ...

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