title: 2,2'-[Ethyl-enebis(azanediyl-methyl-ene)]diphenol.
abstract: In the title compound, C(16)H(20)N(2)O(4), the mol-ecule features a zigzag -CH(2)-NH-CH(2)-CH(2)-NH-CH(2)- chain whose ends are connected to the hydroxy-phenyl rings. The mol-ecules lies about a center of inversion. The imino group is a hydrogen-bond donor for the hydr-oxy group, which is a hydrogen-bond donor for the imino group of an adjacent mol-ecule. This latter inter-molecular hydrogen bonding leads to a layer structure.
authors.forename: Ying-Ming
authors.initials: YM
authors.lastname: Xu
authors.forename: Shan
authors.initials: S
authors.lastname: Gao
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng