ISSN:
1434-4475
Keywords:
Oxoindate
;
K3Na2[InO4]
;
Structure
;
MAPLE
;
Charge distribution
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract With K3Na2[InO4] the first example of new kind of oxides of the type A3A′2[MO4] with R(A)〉R(A′) was prepared in form of colourless single crystals by oxidation of the intermetallic compound “KNaIn2”. Intimate mixtures of the educts (K2O2: “K0.5Na0.5In”=1.2:1) were heated in sealed Ag-tubes (380 °C, 2 d, then 480 °C, 5 d). K3Na2[InO4] crystallizes monoclinic (P21/n) witha=1012.6 pm,b=969.9 pm,c=725.4 pm, β=91.02°;Z=4. The crystal structure was elucidated by four-circle diffractometer (PW 1100, Ag-Kā, 6047I o(hkl),R=7.3%,R w=4.4%). The new typ forms a very complicated 3-dimensional network ∞ 3 {Na2InO4} stuffed by 3 K+. The Madelung part of lattice energy, MAPLE, is calculated and discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00808948
