A mixed crystal of imperatorin and phellopterin, with C-H center dot center dot center dot O, C-H center dot center dot center dot pi and pi-pi interactions

P J Cox, M Jaspars, Y Kumarasamy, L Nahar, S D Sarker, M Shoeb

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Abstract

The crystal structure of 9-(3-methylbut-2-enyloxy)-7H-furo[ 3,2-g]chromen-7-one-4-methoxy-9-(3-methylbut-2-enyloxy)7H-furo[3,2-g]chromen-7-one (0.926/0.074), 0.926C(16)H(14)O(4).0.074C(17)H(16)O(5), is characterized by two independent imperatorin molecules in the asymmetric unit, which exhibit different side-chain conformations. A small amount of phellopterin overlaps with one of the two imperatorin molecules. The supramolecular structure is supported by C-H...O, C-H...pi and pi-pi interactions.

Original languageEnglish
Number of pages3
JournalActa Crystallographica Section C, Crystal Structure Communications
Volume59
DOIs
Publication statusPublished - 2003

Keywords

  • FURANOCOUMARINS

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