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N-[2-(4-Hydroxybenzylideneamino)ethyl]-N-[2-(4-oxidobenzylideneamino)ethyl]ammonium

✍ Scribed by Tian, Xiu-Mei ;Liu, Gang ;Feng, Yue ;Wang, Ji-De

Publisher: International Union of Crystallography
Year: 2007
Tongue: English
Weight: 614 KB
Volume: 63
Category: Article
ISSN: 1600-5368
DOI: 10.1107/s1600536807037397

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✦ Synopsis

The title Schiff base compound, C 18 H 21 N 3 O 2 , was synthesized by a condensation reaction of 4-hydroxybenzaldehyde with diethylenetriamine. The crystal structure determination reveals that one of the terminal hydroxy groups is deprotonated while the imino group of the molecule is protonated; thus the compound is a zwitterion. The two terminal benzene rings are nearly parallel to one another, with a dihedral angle of 9.94 (6) . Intermolecular O-HÁ Á ÁO and N-HÁ Á ÁO hydrogen bonding helps to stabilize the crystal structure.

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