The structure of 1,2-dithioles studied b
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Erik G. Frandsen; Jens P. Jacobsen
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Article
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1977
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John Wiley and Sons
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English
β 331 KB
## Abstract The charge separation between the dithiole ring and oxygen in 3β(1β²,2β²βdithioleβ3β²βylidene)β6βmethylβ2,3βdihydropyranβ2,4βdiones and 3β(1β²,2β²βdithioleβ3β²βylidene)β2,3βdihydrobenzo[__b__] pyranβ2,4βdiones has been determined by ^13^C and ^19^F n.m.r. spectroscopy. By both methods it is f