2-{[3-Chloro-4-(4-chlorophenoxy)phenyl]iminomethyl}-4-nitrophenol

Abstract

In the title compound, C19H12Cl2N2O4, the imine bond length of 1.257 (6) Å is typical of a double bond. The dihedral angle between the para-nitro benzene ring and the central benzene ring is 12.06 (3)° and that between the central benzene and the para-chloro benzene ring is 73.81 (2)°. An intra­molecular O—H⋯N hydrogen bond generates an S(6) ring motif. In the crystal, mol­ecules are linked together by two pairs of C—H⋯O interactions (to the same O atom acceptor), forming inversion dimers. A short Cl⋯Cl contact [3.232 (4) Å] is observed.

Crystal structure of 2-{[2-methoxy-5-(trifluoromethyl)phenyl]iminomethyl}-4-nitrophenol

“…The N1═C7 bond length is 1.295 (5) Å, approximately equal to previously reported C═N bond lengths (Karadayı et al, 2003;Faridbod et al, 2008;Karadayı et al, 2013). The geometric parameters in (I) are comparable with the similar reported structures (Raja et al, 2008;Karadayı et al, 2006).…”

“…For photochromic, thermochromic and biological applications of related Schiff base compounds, see: Hadjoudis et al (1987); Santos et al (2001); Tarafder et al (2002). For related structures, see: Faridbod et al (2008); Karadayı et al (2003Karadayı et al ( , 2006Karadayı et al ( , 2013; Raja et al (2008…”

Crystal structure of (E)-4-nitro-2-((2-phenoxyphenylimino)methyl)phenol, C19H14N2O4

“…The C13 = N1 and the C15-O1 bond distances are 1.288(3) Å and 1.323(3)Å, respectively. The obtained bond distances and angles are in expected normal ranges, and are consistent with our related structures [4][5][6].…”