Bi3+ electronic lone pair configuration in the modulated Bi-2212 type oxides

被引：17

作者：

Jakubowicz, N ^{[1
]}

Perez, O ^{[1
]}

Grebille, D ^{[1
]}

Leligny, H ^{[1
]}

机构：

[1] Inst Sci Mat & Rayonnement, Lab CRISMAT, CNRS, UMR 6508, F-14050 Caen, France

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1998年 / 139卷 / 01期

关键词：

D O I：

10.1006/jssc.1998.7832

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The Bi3+ ion is characterized by the electronic configuration [Xe] 4f(14)5d(10)6s(2), and its 6s(2) lone pair plays an important role in the environment of the ion. A program of localization of the lone pair was successively applied to several bismuth oxides, Different Bi environments were then evidenced and a comparison between simple Bi oxides and more complex phases (modulated and collapsed phases in the family of the so-called Bi-2212 oxides or related compounds) was carried out. All these environments are characterized by Bi-Lp distances ranging from 0.5 to 1 Angstrom and O-Lp distances above 2.4 Angstrom. They can always be described as a more or less important distortion of an ideal BiO(3)Lp tetrahedron, The possible role of this lone pair in the accommodation of the modulation in some phases is outlined. (C) 1998 Academic Press.

引用

页码：194 / 199

页数：6

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