Varandas, A J C Is HO3(-) multiple-minimum and floppy? Covalent to van der Waals isomerization and bond rupture of a peculiar anion. [electronic resource] - Physical chemistry chemical physics : PCCP Aug 2014 - 16997-7007 p. digital Publication Type: Journal Article ISSN: 1463-9084 Standard No.: 10.1039/c4cp01757a doi