Crystal structures of (E)-1-{3-[(5-fluoro-2-hydroxybenzylidene)amino]phenyl}ethanone and of a fourth polymorph of (E)-1-{3-[(2-hydroxy-3-methoxybenzylidene)amino]phenyl}ethanone

Marisiddaiah Girisha, Hemmige S. Yathirajan, Ravindranath S. Rathore, Christopher Glidewell

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In the molecules of both (E)-1-{3-[(5-fluoro-2-hydroxybenzylidene)amino]phenyl}ethanone, C15H12FNO2, (I), and (E)-1-{3-[(2-hydroxy-3-methoxybenzylidene)amino]phenyl}ethanone, C16H15NO3, (II), which crystallizes with it Z′ = 2 in space group it Pca21, there are intramolecular O—H···N hydrogen bonds, and the non-H atoms in each molecule are essentially coplanar. In the crystal of (I), molecules are linked by a single C—H···O hydrogen bond to form a it C(8) chain, whereas in the crystal of (II), molecules are linked by three C—H···O hydrogen bonds to form sheets within which orthogonal it C22(16) and it C22(17) chains can be identified. Comparisons are made with some related structures.
Original languageEnglish
Pages (from-to)1835-1839
Number of pages5
JournalActa Crystallographica Section E
Volume73
Issue number12
DOIs
Publication statusPublished - 1 Dec 2017

Keywords

  • Crystal structure
  • Molecular conformation
  • Hydrogen bonding
  • Polymorphism

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