THE NIOBIUM PHOSPHATE BRONZE BETA-K2NA2-XNB8P5O34, 2ND FORM OF THE 1ST MEMBER OF THE SERIES (K3NB6P4O26)N KNB2PO8

被引:13
作者
BENABBAS, A [1 ]
BOREL, MM [1 ]
GRANDIN, A [1 ]
CHARDON, J [1 ]
LECLAIRE, A [1 ]
RAVEAU, B [1 ]
机构
[1] INST SCI MAT & RAYONNEMENT,CRISTALLOG & SCI MAT LAB,BLVD MARECHAL JUIN,F-14050 CAEN,FRANCE
关键词
D O I
10.1016/0022-4596(91)90087-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A new niobium phosphate bronze β-K2Na2-xNb8P5O34 has been isolated. Its structure was solved by single crystal X-ray diffraction for x = 0.27. It crystallizes in the space group P4m2 with a = 10.612 (1) and c = 6.384 (1) Å. This phase is the second form of the first member of the series (K3Nb6P4O26)n KNb2PO8. The structural relationships with the other members of this series and especially with K7Nb14P9O60 (n = 2) are discussed. © 1991.
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页码:323 / 330
页数:8
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