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The structure of 11,11-difluoro-1,6-methano[l0]annulene

✍ Scribed by Gramaccioli, C. M. ;Simonetta, M.

Book ID
117857504
Publisher
International Union of Crystallography
Year
1971
Weight
888 KB
Volume
27
Category
Article
ISSN
0567-7408

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In the previous paper (1) we have described a two-step synthesis of 1,6-methanaCl0lannulen-1 l-one from tropone. This compound, having the p-orbital of the carbonyl group .approximately perpendicular to the peripheral IOn-electron system, failed to exhibit appreciable n-n interaction between them. W

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Although 1,6-methanoOOJannulene is well known to be aromatic (1), those with trigonol Cl1 provides additional'interesting problem with respect to the intemction of the P, orbital of bridge.and peripheral IOn-electron system. Thus, 11 methylene-1,6-methanoClObnnuIene synthesized by Vogel (2) disclose