Phosphorus:: New in situ powder data from large-volume apparatus

被引：24

作者：

Crichton, WA

Mezouar, M

Monaco, G

Falconi, S

机构：

[1] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[2] Univ Roma Tre, I-00146 Rome, Italy

[3] INFM, Dipartimento Fis, I-00146 Rome, Italy

来源：

POWDER DIFFRACTION | 2003年 / 18卷 / 02期

关键词：

phosphorus; nonambient conditions; synchrotron; powder diffraction; high pressure; SDPD; synthesis;

D O I：

10.1154/1.1545115

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Improved X-ray powder diffraction data for orthorhombic phosphorus, S.G. Cmca (64) obtained in situ at synthesis conditions of 1.2 GPa and 1100 K, are described. Representative, as synthesized, data include 2.552(X), 3.320(4), 2.595(3), 5.191(2), 1.630(2), for least-squares unit-cell a=3.3182(6) Angstrom, b= 10.3744(18) Angstrom and c=4.3227(9) Angstrom. As an illustration of the quality of the data, the structure was solved from powder XRD and Rietveld refined to give a=3.3199(2) Angstrom, b= 10.3678(4) Angstrom, c=4.3154(2)Angstrom, and V=148.535(12) Angstrom(3) with the P atom on 8f (1/2, y,z) with y=0.1044(22) and z=0.9179(7). (C) 2003 International Centre for Diffraction Data.

引用

页码：155 / 158

页数：4

共 23 条

[1] Structural stability and equation of state of simple-hexagonal phosphorus to 250 GPa:: Phase transition at 262 GPa [J].