Abstract
The title compound, C 13 H 19 NO 2 , is the cyclized ringchain tautomer of the corresponding angularly substituted Δ 1(9) -2-octalone and exists in two crystalline polymorphs, (I) and (II), displaying fundamentally different intermolecular hydrogen-bonding patterns, neither of which involves the ketone. In (I), amide groups are paired by hydrogen bonding in non-centrosymmetric dimers (space group C2/c). In (II), hydrogen bonding proceeds from the NH of each molecule to the amide C=O of a screw-related neighbor, generating parallel, centrosymmetrically related, counterdirectional chains passing through the cell in the b direction (space group P2 1 /c). Several intermolecular C=O...H-C close contacts were found for both (I) and (II).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Acta Crystallographica Section C Crystal Structure Communications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
