Hoong Kun Fun, Reza Kia, Stefanie Schiffers, Majid Moghadam, Paul R. Raithby

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1 Citation (SciVal)


The mol-ecule of the title compound, C19H15N3O, is approximately planar and displays a trans configuration with respect to the C=N and N=N double bonds. An intra-molecular O - H⋯N hydrogen bond generates an S(6) ring motif. The dihedral angles between the hydroxy-phenyl ring and the phenyl and benzene rings are 4.31 (8) and 6.60 (8)°, respectively. The dihedral angle between the phenyl and benzene rings linked by the azo group is 2.70 (8)°. The imino group is coplanar with the hydroxy-phenyl ring, as shown by the C - C - C - N torsion angle of -1.8 (2)°. The azo group is disordered over two position with refined site-occupancy factors of ca 0.87/0.13. In the crystal structure, mol-ecules are linked together by inter-molecular C - H⋯O inter-actions along the c axis and also are packed as one-dimensional extended chains down the b axis.

Original languageEnglish
Pages (from-to)o1856-o1857
JournalActa Crystallographica Section E: Structure Reports Online
Issue number9
Publication statusPublished - 2008

ASJC Scopus subject areas

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


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