4
-507Orthorhombic Polymorph of ErPSO,,, Crystal Structure and Characterization Erbium pentaphosphate crystals have been characterized and the structure of the orthorhombic polymorph (type 111) determined by X-rays. It has been found that the orthorhombic samples of ErP,O,,, space group Pnma, crystallize mainly at higher temperatures and usually are much larger than monoclinic crystals, space group C2/c, obtained from lower-temperature crystallizations. Differences in fluorescence and upconversion properties between orthorhombic and monoclinic polymorphs have been detected.
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.