1,4,5,8-Naphthalenetetracarboxylic Acid Cyclic 1,8-Anhydride Bis(dimethyl sulfoxide) Solvate and 1,4,5,8-Naphthalenetetracarboxylic 1,8:4,5-Dianhydride

• Published in: Acta crystallographica. Section C, Crystal structure communications Vol. 53; no. 12; pp. 1991 - 1995
• Main Authors: Blackburn, A. C., Fitzgerald, L. J., Gerkin, R. E.
• Format: Journal Article
• Language: English
• Published: 5 Abbey Square, Chester, Cheshire CH1 2HU, England International Union of Crystallography 15.12.1997; Blackwell
• Subjects: Anhydrides - chemistry; Chemical Phenomena; Chemistry, Physical; Condensed matter: structure, mechanical and thermal properties; Crystallization; Crystallography, X-Ray; Dimethyl Sulfoxide; Exact sciences and technology; Heterocyclic compounds; Hydrogen Bonding; Models, Molecular; Molecular Structure; Naphthalenes - chemistry; Organic compounds; Physics; Structure of solids and liquids; crystallography; Structure of specific crystalline solids; Organic dianhydride; Molecular structure; Carboxylic acids; Organic anhydride; XRD; Tricyclic compound; Experimental study; Aromatics; Hydrogen bonds; Solvate; Heterocyclic oxygen compounds; Organic compounds; Crystal structure
• ISSN: 0108-2701; 1600-5759
• DOI: 10.1107/S0108270197011712

1,4,5,8-Naphthalenetetracarboxylic acid cyclic 1,8-anhydride crystallized from dimethyl sulfoxide (DMSO) as the solvate, C14H6O7.2C2H6OS, in the centrosymmetric space group P1. Two O-H...O hydrogen bonds with O...O distances of 2.592 (3) and 2.598 (3) A are formed, with the two carboxylic acid OH groups as donors and the O atoms of the two inequivalent DMSO molecules as acceptors. The carboxylic H atoms are ordered, as are the carboxylic O atoms. In addition to the conventional hydrogen bonds, there are numerous C-H...O interactions consistent with the large number of potential CH donors and O-atom acceptors. 1,4,5,8-Naphthalenetetracarboxylic 1,8:4,5-dianhydride, C14H4O6, crystallized in the centrosymmetric space group P2(1)/c with half the molecule as the asymmetric unit. Each molecule is involved in four significant C-H...O interactions as a donor and in an additional four as an acceptor. These eight interactions link each molecule to six neighboring molecules, forming a three-dimensional network. Geometric parameters of both substances are in general agreement with analogous parameters for naphthalic anhydride, monosodium 1,4,5,8-naphthalenetetracarboxylic acid cyclic 1,8-anhydride monohydrate and 1,4,5,8-naphthalenetetracarboxylic 1,8:4,5-dianhydride, as reported previously.