Crystal structures of the three forms of CsZnPO4

Crystal Chemistry and Polymorphism of Potassium–Magnesium Monophosphate

“…Weissenberg and precession photographs performed at room temperature on a single crystal showed monoclinic symmetry, with extinctions corresponding to space group P2 /c. Parameter c"18.996 A s is worth twice the usual value observed on most ABPO ; such a superstructure has already been reported for the lowtemperature forms of isotypic CsZnPO (8) and NH LiSO (9) which adopt the same space group.…”

“…E hM kl and hkl reflections are no longer split in hightemperature forms; systematic extinctions allow to giveKMgPO an orthorhombic Pna2 symmetry andKMgPO an orthorhombic Pnma symmetry as for mediumand high-temperature forms of NH LiSO\ type compound (1, 15) and isotypic monophosphate CsZnPO (8). Cell parameters refined from powder patterns and symmetries of varieties and are summarized in Table 6.…”

Synthesis and Characterizations of a Polymorphic Sodium Cobalt Phosphate with Edge-Sharing Co2+Octahedral Chains

“…Such is the case for the pink polymorph of NaCoPO described here. at 280°C, and Pnma at 340°C (15). The framework topology of NaCoPO belongs to the ZnSO type.…”

Crystal Structures and Crystal Chemistry of AgXPO4(X=Be, Zn)

“…The monophosphate compounds A'X'' PO (with X''"Be, Zn and A'"Na>PCs>, Tl>, Ag> and NH> ) are known to belong to that structural family, their structures consisting of a [BePO ] or [ZnPO ] tetrahedral framework with cavities filled with the monovalent cations. Partial structural data (e.g., cell dimensions from powder X-ray diffraction data) are available for most A'X''PO compounds (13,14) and full structure determinations have been carried out for the following members of the series: the beryllonite mineral NaBePO (15), KBePO and CsBePO (16), TlBePO (17), NaZnPO (18), KZnPO (19), RbZn PO (20), and CsZnPO (21). Several of these…”