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Novel Synthesis of Spiro[1,8a]dihydroindolizines; A New Photochemically Reversible System

✍ Scribed by Dr. Hubert Gross; Prof. Dr. Heinz Dürr

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
188 KB
Volume
21
Category
Article
ISSN
0044-8249

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fluorine atoms are brought closer together (see Fig. 2). The distance between the axial fluorine atoms and the hydrogen atoms is only 240 pm; however, no evidence of H...F bridges is apparent from the spectroscopic data. The SCF geometrical optimization shows that the isomer with an equatorially or