Supramolecular structure of S-(+)-marmesin-a linear dihydrofuranocoumarin

Bulletin of materials science

Ashok Sharma³  Sanjeev Goswami²  Vivek K Gupta¹  B D Gupta³ 

[1] Post-Graduate Department of Physics, University of Jammu, Jammu Tawi 180 006, India$$Natural Products Chemistry Division, Regional Research Laboratory, Jammu Tawi 180 001, India$$Post-Graduate Department of Physics, University of Jammu, Jammu Tawi 180 006, IndiaPost-Graduate Department of Physics, University of Jammu, Jammu Tawi 180 006, India$$Natural Products Chemistry Division, Regional Research Laboratory, Jammu Tawi 180 001, India$$Natural Products Chemistry Division, Regional Research Laboratory, Jammu Tawi 180 001, IndiaPost-Graduate Department of Physics, University of Jammu, Jammu Tawi 180 006, India$$Natural Products Chemistry Division, Regional Research Laboratory, Jammu Tawi 180 001, India$$;Post-Graduate Department of Physics, University of Jammu, Jammu Tawi 180 006, India$$Post-Graduate Department of Physics, University of Jammu, Jammu Tawi 180 006, IndiaPost-Graduate Department of Physics, University of Jammu, Jammu Tawi 180 006, India$$;Natural Products Chemistry Division, Regional Research Laboratory, Jammu Tawi 180 001, India$$Natural Products Chemistry Division, Regional Research Laboratory, Jammu Tawi 180 001, IndiaNatural Products Chemistry Division, Regional Research Laboratory, Jammu Tawi 180 001, India$$

关键词: Supramolecular structure;    direct methods;    hydrogen bond;    𝜋âˆ�?�ðœ�?? interaction;    envelope;    furano-coumarin.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The title compound, C₁₄H₁₄O₄, a linear dihydrofuranocoumarin, was isolated from the bark of Aegle marmelos, a plant widely used in Ayurvedic system of medicine for the treatment of various ailments. The crystal structure was determined from X-ray diffraction data using direct methods. The compound crystallizes into monoclinic space group ð‘�?2₁ with unit cell parameters: ð‘�? = 5.721(1) Ã�?, ð‘�? = 13.810(1) Ã�?, ð‘�? = 7.864(2) Ã�?, ð›�? = 100.39(1)°, ð‘�? = 2. The structure was refined by full-matrix least-squares to a final ð‘�?? value of 0.0523 for 1184 observed reflections. The benzopyran moiety is perfectly planar. The dihedral angle between the pyrone and benzene rings is 0.3(1)°. The furan ring has a 2ð›�?-envelope conformation. The molecules are linked by Oâ€�?�H…O hydrogen bonds into chains and these chains are linked into sheets by Câ€�?�H…O hydrogen bonds. Further, the 𝜋âˆ�?�ðœ�?? stacking and Câ€�?�H$ldotspi$(arene) interactions link all of the sheets into a supramolecular structure.

【 授权许可】

Unknown