Abstract
Isonicotinamide(INA) and p-Cyanobenzoic acid (CNBA) interact in alcohol solutions to give co-crystals INA-CNBA and INA(CNBA)2. These co-crystals have been characterized by single crystal X-ray crystallography and were further studied by infrared spectroscopy and differential scanning calorimetry. The crystallography provides a structural basis for thermal reactivity in INA(CNBA)2 and relevant intermolecular contacts in the co-crystals are discussed.
Acknowledgments
At the time of this work, Ankan Dhal was a student at Westford Academy, Westford, MA. His participation was supported in part by the U.S. Army Research and Engineering Apprentice Program through the Academy of Applied Sciences, Concord, NH. The authors thank M.J. Downey for furnishing the X-ray powder patterns. B.M.F. thanks the National Science Foundation (Grants DMR-0504000 and CHE-0521047 to Brandeis University) for partial support of this research.