title: Crystal structure of the co-crystal butyl-paraben-isonicotinamide (1/1).
abstract: The title 1:1 co-crystal, C11H14O3·C6H6N2O [systematic name: butyl 4-hy-droxy-benzoate-isonicotinamide (1/1)], crystallizes with one mol-ecule of butyl-paraben (BPN) and one mol-ecule of isonicotinamide (ISN) in the asymmetric unit. In the crystal, BPN and ISN mol-ecules form hydrogen-bonded (O-H⋯N and N-H⋯O) dimers of paired BPN and ISN mol-ecules. These dimers are further connected to each other via N-H⋯O=C hydrogen bonds, creating ribbons in [011] which further stack along the a axis to form a layered structure with short C⋯C contacts of 3.285 (3) Å. Packing inter-actions within the crystal structure were assessed using PIXEL calculations.
authors: Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, Scotland.
authors: Rajni M
authors: RM
authors: Bhardwaj
authors: Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, Scotland.
authors: Huaiyu
authors: H
authors: Yang
authors: Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, 161 Cathedral Street, Glasgow G4 0RE, Scotland.
authors: Alastair J
authors: AJ
authors: Florence
keywords: butyl­paraben; co-crystal; crystal structure; hydrogen bonding; isonicotinamide