A neodymium-substituted britholite compound

被引：37

作者：

Boyer, L ^{[1
]}

Savariault, JM

Carpena, J

Lacout, JL

机构：

[1] CEN Cadarache, Serv Etud Procedes, CEA, Lab Etud Mat Confinement, F-13108 St Paul Durance, France

[2] CNRS, Ctr Elaborat Mat & Etud Struct, F-31055 Toulouse, France

[3] Lab Etud Physicochim Phosphates, F-31400 Toulouse, France

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1998年 / 54卷

关键词：

D O I：

10.1107/S0108270197019306

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A single crystal of calcium neodymium fluoride oxide phosphate silicate, Ca9Nd(PO4)(5)(SiO4)F1.5O0.25, was obtained by a synthesis involving the heating of a CaF2/P2O5/CaCO3/Nd2O3/SiO2 mixture at 1973 K over a period of 2 h followed by cooling at 50 K min(-1). The structure is of the britholite type, a mixed silica-phosphate apatite. The neodymium is distributed over both calcium sites, 17% in calcium site I and 83% in calcium site TI. The channel which contains the anions is partially filled with 77% F- and 13% O2-, the remaining 10% being vacancies.

引用

页码：1057 / 1059

页数：3

共 13 条

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