Crystal Structure of 2-[2-(2-Aminophenoxy)ethoxy]-N-[(1E)-2,3,5,6,8,9,11,12-octahydro-1,4,7,10,13-benzopentaoxacyclopentadecin-15-ylmethylene]aniline

Abstract

The title compound, C₂₉H₃₄N₂O₇, is a substituted monotopic benzo-15-crown-5-ether ligand. It belongs to the space group P2₁/a with cell parameters a = 8.9857(6), b = 25.0353(17), c = 12.6979(9)Å and β = 109.730(1)°. The intermolecular N-H…O hydrogen bonds are dominantly effective in stabilizing the crystal structure. The N-H…O intermolecular hydrogen bonds link the molecules, forming infinite one-dimensional chains running approximatelly parallel to the a-axis. The relative macrocyclic inner-hole size is estimated to be 1.44 Å. The substituent and benzocrown ether precursors about the C=N imine bond reveals a trans planar (1E) configuration.