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Crystal Structure of RbD 2 PO 4 .D 2 O: A new Hydrate Phase of KDP‐type Compounds
Author(s) -
Mattauch S.,
Paulus W.,
Glinnemann J.,
Roth G.,
Heger G.
Publication year - 2000
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/1521-4079(200004)35:4<501::aid-crat501>3.0.co;2-x
Subject(s) - hydrate , phase (matter) , crystal structure , materials science , crystallography , crystal (programming language) , clathrate hydrate , type (biology) , chemistry , mineralogy , inorganic chemistry , chemical engineering , geology , organic chemistry , engineering , computer science , programming language , paleontology
The mono‐hydrate phase as well as the water‐free RbD 2 PO 4 (DRDP) is obtained by crystal growth from fully deuterated aqueous solution. Its crystal structure was determined by combined neutron and X‐ray single crystal diffraction. It consists of double layers of PO 4 tetrahedra with D 2 O planes in between. The PO 4 groups are linked by fully ordered deuterium bonds O‐D‐O. RbD 2 PO 4 .D 2 O dehydrates below 329(5)K and undergoes a phase transition to RbD 2 PO 4 (DRDP).