title: Creation of hydrogen bonded 1D networks by co-crystallization of N,N'-bis(2-pyridyl)aryldiamines with dicarboxylic acids.
abstract: The preparation and crystal structures of fourteen complexes of N,N'-bis(2-pyridyl)aryldiamines with dicarboxylic acids and two complexes with squaric acid are reported. The recognition between the carboxylic acids and the 2-aminopyridine units occurs through the formation of the cyclic R(2)2 (8) hydrogen bond motif, whereas squaric acid creates the analogous R(2)2 (9) motif. In the 1:1 complexes the cyclic motifs generate infinite hydrogen-bonded 1D networks with the alternating component molecules. These networks are further organised into densely packed layers assembled through weaker C-H...O interactions. Analysis of the intermolecular interactions in these complexes led us to the synthesis of N,N'-bis(2-pyridyl)-2,2'-oxybis(aminobenzene) (5) which acts as a tritopic receptor of the carboxylic group and forms exclusively 2:1 complexes with dicarboxylic acids.
authors.affiliation: Department of Chemistry, Technical University, 80-952 Gdańsk, Poland.
authors.forename: Igor
authors.initials: I
authors.lastname: Bensemann
authors.forename: Maria
authors.initials: M
authors.lastname: Gdaniec
authors.forename: Karina
authors.initials: K
authors.lastname: Łakomecka
authors.forename: Maria J
authors.initials: MJ
authors.lastname: Milewska
authors.forename: Tadeusz
authors.initials: T
authors.lastname: Połoński