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1,3-Bis{(E)-[4-(di-methyl-amino)-benzyl-idene]amino}-propan-2-ol: chain structure formation via an O-H?N hydrogen bond.

ABSTRACT: The asymmetric unit of the title compound, C21H28N4O, consists of two unique mol-ecules linked by an O-H?N hydrogen bond. The conformation of both C=N bonds is E and the azomethine functional groups lie close to the plane of their associated benzene rings in each of the independent mol-ecules. The dihedral angles between the two benzene rings are 83.14?(4) and 75.45?(4)°. The plane of the one of the N(CH3)2 units is twisted away from the benzene ring by 18.8?(2)°, indicating loss of conjugation between the lone electron pair and the benzene ring. In the crystal structure, O-H?N hydrogen bonds together with C-H?O hydrogen bonds link neighbouring supra-molecular dimers into a three-dimensional network.

SUBMITTER: Rivera A 

PROVIDER: S-EPMC5458298 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature

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1,3-Bis{(<i>E</i>)-[4-(di-methyl-amino)-benzyl-idene]amino}-propan-2-ol: chain structure formation <i>via</i> an O-H⋯N hydrogen bond.

Rivera Augusto A   Miranda-Carvajal Ingrid I   Ríos-Motta Jaime J   Bolte Michael M  

Acta crystallographica. Section E, Crystallographic communications 20170505 Pt 6

The asymmetric unit of the title compound, C<sub>21</sub>H<sub>28</sub>N<sub>4</sub>O, consists of two unique mol-ecules linked by an O-H⋯N hydrogen bond. The conformation of both C=N bonds is <i>E</i> and the azomethine functional groups lie close to the plane of their associated benzene rings in each of the independent mol-ecules. The dihedral angles between the two benzene rings are 83.14 (4) and 75.45 (4)°. The plane of the one of the N(CH<sub>3</sub>)<sub>2</sub> units is twisted away from  ...[more]

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