SYNTHESIS AND CRYSTAL-STRUCTURE OF ALPHA-NH4(VO2)(HPO4)

被引：27

作者：

AMOROS, P ^{[1
]}

LEBAIL, A ^{[1
]}

机构：

[1] UNIV MAINE,FAC SCI,FLUORURES LAB,CNRS,URA 449,F-72017 LE MANS,FRANCE

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1992年 / 97卷 / 02期

关键词：

D O I：

10.1016/0022-4596(92)90035-T

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Hydrothermal synthesis starting from β-NH4(VO2)(HPO4) leads to α-NH4(VO2)(HPO4): orthorhombic, space group Pb21a; Z = 4; a = 6.830(1) Å, b = 9.233(2) Å, c = 8.817(2) Å; R = 0.037 for 3371 reflections. NH+4 cations connect isolated chains of trans-corner sharing VO5 square pyramids running along the a-axis. The a-phase transforms irreversibly into the β-form by heating near 200°C. Comparison is made between the two phases. © 1992.

引用

页码：283 / 291

页数：9

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