A NEW ACCESS TO ALKALI VANADATES(IV,V) CRYSTAL-STRUCTURE OF RB2V3O8

被引：22

作者：

HAEIERDANZ, ML ^{[1
]}

MULLER, U ^{[1
]}

机构：

[1] UNIV MARBURG,FACHBEREICH CHEM,HANS MEERWEIN STR,W-3550 MARBURG,GERMANY

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1992年 / 613卷 / 07期

关键词：

RUBIDIUM VANADATE(IV; V); CRYSTAL STRUCTURE;

D O I：

10.1002/zaac.19926130111

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

By heating vanadium(V) oxide with rubidium iodide to 500-degrees-C, the vanadium experiences partial reduction and Rb2V3O8 is obtained. It has the fresnoite structure. Crystal data: a = 892.29(7), c = 554.49(9) pm at 20-degrees-C, tetragonal, space group P4bm, Z = 2. X-ray crystal structure determination with 620 observed reflexions, R = 0.027. V2O7 units share vertices with VO5 square pyramids, forming layers; a layer can be regarded as association product of VO2+ and V2O74- ions. The Rb+ ions between the layers have pentagonal-antiprismatic coordination.

引用

页码：63 / 66

页数：4

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