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Crystal structure of methyl 2-[2,4-bis-(4-fluoro-phen-yl)-3-aza-bicyclo-[3.3.1]nonan-9-yl-idene]hydrazine-carboxyl-ate.


ABSTRACT: In the title compound, C22H23F2N3O2, the bicyclic ring system exists in a twin-chair conformation with an equatorial disposition of the 4-fluoro-phenyl groups on the heterocycle. These aromatic rings are inclined to one another by 19.4?(1)°. In the crystal, mol-ecules are linked by pairs of N-H?O and C-H?O hydrogen bonds into inversion dimers, incorporating R 1 (2)(7) and R 2 (2)(8) ring motifs; the same O atom accepts both hydrogen bonds. These dimers are further linked by a pair of C-H?F hydrogen bonds, enclosing R 2 (2)(28) ring motifs, forming supra-molecular chains along [010]. The NH group of the pyridine ring is not involved in hydrogen bonding, probably due to the steric hindrance of the fluoro-phenyl groups.

SUBMITTER: Kamaraj A 

PROVIDER: S-EPMC4186194 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature

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Crystal structure of methyl 2-[2,4-bis-(4-fluoro-phen-yl)-3-aza-bicyclo-[3.3.1]nonan-9-yl-idene]hydrazine-carboxyl-ate.

Kamaraj A A   Rajkumar R R   Krishnasamy K K   Murugavel S S  

Acta crystallographica. Section E, Structure reports online 20140830 Pt 9


In the title compound, C22H23F2N3O2, the bicyclic ring system exists in a twin-chair conformation with an equatorial disposition of the 4-fluoro-phenyl groups on the heterocycle. These aromatic rings are inclined to one another by 19.4 (1)°. In the crystal, mol-ecules are linked by pairs of N-H⋯O and C-H⋯O hydrogen bonds into inversion dimers, incorporating R 1 (2)(7) and R 2 (2)(8) ring motifs; the same O atom accepts both hydrogen bonds. These dimers are further linked by a pair of C-H⋯F hydro  ...[more]

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