Concomitant polymorphism in 3-acetylcoumarin: Role of weak C-H⋯O and C-H⋯π interactions

Parthapratim Munshi, K. N. Venugopala, B. S. Jayashree, Tayur N. Guru Row

Research output: Contribution to journalArticlepeer-review

92 Citations (Scopus)


An analysis of structural features associated with polymorphism in 3-acetylcoumarin has been made in terms of morphology, infrared spectroscopy, crystal structure, powder X-ray diffraction, and differential scanning calorimetric measurements. The appearance of concomitant polymorphe is found to depend on the crystallization temperature in the 1:1 chloroform/hexane solvent system. C-H⋯O and C-H⋯π interactions stabilize one form in a head to head configuration, while only C-H⋯O interactions stabilize the other in a head to tail configuration of the molecules in the crystal lattice.

Original languageEnglish
Pages (from-to)1105-1107
Number of pages3
JournalCrystal Growth and Design
Issue number6
Publication statusPublished - 01-11-2004

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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