In mining the CSD we identified a total of 95 families of polymorphs related by proton transfer which were classified into six different categories depending on the type of proton transfer observed and the ionisation of species involved.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.