title: Crystal structure of [propane-1,3-diylbis(piperidine-4,1-di-yl)]bis-[(pyridin-4-yl)methanone]-isophthalic acid (1/1).
abstract: In the crystal structure of the title co-crystal, C25H32N4O2·C8H6O4, isophthalic acid and [propane-1,3-diylbis(piperidine-4,1-di-yl)]bis-(pyridin-4-yl-methanone) mol-ecules are connected into supra-molecular chains aligned along the c axis by O-H⋯N hydrogen bonding. These aggregate into supra-molecular layers oriented parallel to the ac plane by C-H⋯O inter-actions. These layers then stack in an ABCD pattern along the b-axis direction by additional C-H⋯O inter-actions to give the full three-dimensional crystal structure. The central chain in the di-pyridyl-amide molecule has an anti-gauche conformation.
authors.affiliation: Lyman Briggs College, Department of Chemistry, E-30 Holmes Hall, 919 East Shaw Lane, Michigan State University, East Lansing, MI 48825, USA.
authors.forename: Nathan H
authors.initials: NH
authors.lastname: Murray
authors.affiliation: Department of Chemistry, Grand Valley State University, Allendale, MI 49401, USA.
authors.forename: Shannon M
authors.initials: SM
authors.lastname: Biros
authors.affiliation: Lyman Briggs College, Department of Chemistry, E-30 Holmes Hall, 919 East Shaw Lane, Michigan State University, East Lansing, MI 48825, USA.
authors.forename: Robert L
authors.initials: RL
authors.lastname: LaDuca
keywords: crystal structure; hydrogen bonding; isophthalic acid; propane-1,3-di­yl; pyridin-4-yl­methanone; supra­molecular layers