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On the structure of equibinary cis-1,4-/1,2-polybutadiene by 13C n.m.r.

✍ Scribed by K.-F. Elgert; G. Quack; B. Stützel

Publisher: Elsevier Science
Year: 1974
Tongue: English
Weight: 180 KB
Volume: 15
Category: Article
ISSN: 0032-3861
DOI: 10.1016/0032-3861(74)90164-5

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## Abstract The charge separation between the dithiole ring and oxygen in 3‐(1′,2′‐dithiole‐3′‐ylidene)‐6‐methyl‐2,3‐dihydropyran‐2,4‐diones and 3‐(1′,2′‐dithiole‐3′‐ylidene)‐2,3‐dihydrobenzo[__b__] pyran‐2,4‐diones has been determined by ^13^C and ^19^F n.m.r. spectroscopy. By both methods it is f