What is it about?
On the title compound, C20H27N3O, the hydroxy group forms an intramolecular O—H⋯N hydrogen bond with the imino N atom. The dihedral angle between the aromatic rings is 33.09 (9)°. In the crystal, molecules form centrosymmetric dimers via pairs of N—H⋯N hydrogen bonds involving aminopyridine fragments.
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Why is it important?
Schiff base ligands derived from salicylaldehyde containing OH...N type hydrogen bonding have been studied due to the versatility of their electronic and steric properties.
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This page is a summary of: (E)-2-{[(2-Aminopyridin-3-yl)imino]methyl}-4,6-di-tert-butylphenol, Acta Crystallographica Section E Structure Reports Online, July 2012, International Union of Crystallography,
DOI: 10.1107/s1600536812032060.
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