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

Girisha, M. and Yathirajan, H. S. and Rathore, Ravindranath S. and Glidewell, Christopher (2017) 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. Acta Crystallographica Section E, 73 (12). pp. 1835-1839. ISSN 2056-9890

Text (Full Text) 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.pdf - Published Version Download (822kB)

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 Z′ = 2 in space group 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 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 C22(16) and C22(17) chains can be identified. Comparisons are made with some related structures.

Item Type:	Article
Uncontrolled Keywords:	crystal structure, molecular conformation, hydrogen bonding, polymorphism
Subjects:	C Chemical Science > Chemistry
Divisions:	Department of > Chemistry
Depositing User:	C Swapna Library Assistant
Date Deposited:	19 Jun 2019 05:24
Last Modified:	19 Jun 2019 05:24
URI:	http://eprints.uni-mysore.ac.in/id/eprint/3384

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