KUMAR MAHAPATRA, A., SAHOO, P., FUN, H., & GOSWAMI, S. (2010). Hydrogen Bonding Selectivity in Molecular Assembly: A Novel 2:1 Molecular Complex of Caffeine and 4-Hydroxybenzoic Acid via C– H···O/O– H···O/O– H···N Hydrogen Bond Coupling. Asian Journal of Chemistry, 20(3), 1761–1765. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/19149