Kumar, Prashant Protonated nucleobases are not fully ionized in their chloride salt crystals and form metastable base pairs further stabilized by the surrounding anions. [electronic resource] - IUCrJ Jul 2018 - 449-469 p. digital Publication Type: Journal Article ISSN: 2052-2525 Standard No.: 10.1107/S2052252518006346 doi