| Abstrakt: |
Double zirconium and 3d-transition metal phosphates of the compositions M[sub 0.5]Zr[sub 2](PO[sub 4])[sub 3][M = Mn (I), Co (II), Ni (III), Cu (IV), Zn (V)] have been synthesized and the types of their structures have been refined. Compounds I,II,III,IV, and V are all monoclinic (sp. gr. P2[sub 1]/n,Z = 4) and have the unit cell parameters a = 12.390(3), 12.389(3), 12.385(3), 12.389(3), 12.389(2) Å; b = 8.931(4), 8.928(3), 8.924(4), 8.925(4), 8.929(3) Å; c = 8.843(3), 8.840(2), 8.840(3), 8.841(3), 8.842(2) Å, β = 90.55(1), 90.54(1), 90.53(1), 90.53(1), 90.54(1)°; V = 978.5, 977.7, 977.0, 977.4, 978.1Å[sup 3] , respectively. All the structures have the {[Zr[sub 2](PO[sub 4])[sub 3]][sup –]}[sub 3∞]-type frameworks. The crystallographic data for 3d-transition and alkali earth metal phosphates described by the general formula M[sub 0.5]Zr[sub 2](PO[sub 4])[sub 3] are compared. © 2000 MAIK “Nauka / Interperiodica”. [ABSTRACT FROM AUTHOR] |
