Abstract
The title compound, 6-cinnamoyl-5-hydroxy-2,2,8,8-tetramethyl-2H,8H-pyrano[2,3-f]chromene, C 25 H 24 O 4 , is an angular benzodipyran system. It contains a central tricyclic core and a peripheral aromatic ring. The central ring of the tricyclic core is fully substituted while the pyran rings on either side are each unsubstituted at two sites. The central fully substituted ring is planar within 0.014 A. One pyran ring is planar to within 0.041 A, but the second pyran ring is only planar to within 0.156 A; this may be attributed to an intramolecular C-H...O contact of 2.30 A. The structure is stabilized by intramolecular O-H...O hydrogen bonds.
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.
