The Crystal Structures of two Anhydrous Magnesium Hydroxychloride Phases from in situ Synchrotron Powder Diffraction Data

被引：28

作者：

Dinnebier, Robert E. ^{[1
]}

Halasz, Ivan ^{[1
]}

Freyer, Daniela ^{[2
]}

Hanson, Jonathan C. ^{[3
]}

机构：

[1] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

[2] TU Bergakad Freiberg, Inst Inorgan Chem, D-09595 Freiberg, Germany

[3] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2011年 / 637卷 / 11期

关键词：

Magnesia binder phases; Magnesium; Sorel cement; Synchrotron radiation; X-ray diffraction; X-RAY;

D O I：

10.1002/zaac.201100139

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The crystal structures of two members of the solid solution series Mg(OH)(x)Cl(y) x + y = 2, Mg(OH)(1.7)Cl(0.3) (P $(3) over bar $ m1, a = 3.169(2) angstrom, c = 5.530(12), V = 48.1(1) angstrom(3) at T = 365 degrees C) and MgOHCl (R $(3) over bar $m, a = 3.3877(4) angstrom, c = 17.534(4) angstrom, V = 174.27(6) angstrom(3) at T = 625 degrees C) were determined from in situ synchrotron powder diffraction data at high temperature upon dehydration of 3Mg(OH)(2)center dot MgCl(2)center dot 8H(2)O (F3) and 5Mg(OH)(2)center dot MgCl(2)center dot 8H(2)O (F5) phases. The crystal structures of Mg(OH)(1.7)Cl(0.3) (example of ss-type-OH) and MgOHCl (example of ss-type-Cl) can be related to the C19 (CdCl(2)) and C6 (CdI(2)) structure type, respectively, with the disordered chloride and hydroxide anions occupying the same crystallographic site in layers.

引用

页码：1458 / 1462

页数：5

共 15 条

[1] A versatile sample-environment cell for non-ambient X-ray scattering experiments [J].

Chupas, Peter J. ;

Chapman, Karena W. ;

Kurtz, Charles ;

Hanson, Jonathan C. ;

Lee, Peter L. ;

Grey, Clare P. .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2008, 41 :822-824

[2] X-RAY, THERMAL, AND DEHYDRATION STUDIES ON MAGNESIUM OXYCHLORIDES [J].

COLE, WF ;

DEMEDIUK, T .

AUSTRALIAN JOURNAL OF CHEMISTRY, 1955, 8 (02) :234-251

[3] Synthesis and crystal structures of Cd(OH)Cl and Cu(OH)Cl and relationship to brucite type [J].

Cudennec, Y ;

Riou, A ;

Gérault, Y ;

Lecerf, A .

JOURNAL OF SOLID STATE CHEMISTRY, 2000, 151 (02) :308-312

[4] THE CRYSTAL STRUCTURE OF MG2(OH)3(CL,BR).4H2O [J].

DEWOLFF, PM ;

WALTERLEVY, L .

ACTA CRYSTALLOGRAPHICA, 1953, 6 (01) :40-44

[5] 9Mg(OH)2•MgCl2•4H2O, a High Temperature Phase of the Magnesia Binder System [J].

Dinnebier, Robert E. ;

Freyer, Daniela ;

Bette, Sebastian ;

Oestreich, Melanie .

INORGANIC CHEMISTRY, 2010, 49 (21) :9770-9776

[6] On the constitution of solid basic salts of bivalent metals II Basic nickel halogenides with "elementary layer grid" XIV Announcement on basic salts [J].

Feitknecht, W ;

Collet, A .

HELVETICA CHIMICA ACTA, 1936, 19 :831-841

[7] The hydroxychloride of magnesium [J].

Feitknecht, W ;

Held, F .

HELVETICA CHIMICA ACTA, 1944, 27 :1480-1495

[8]

Hammersley AP., 1998, ESRF INTERNAL REPORT

[9]

Hinrichsen B, 2006, Z KRISTALLOGR, P231

[10] Neutron and x-ray structure determination of laurionite-type Pb{O(H,D)}X, with X=Cl,Br, and I, hydrogen bonds to lead(II) ions as a hydrogen-bond acceptor [J].

Lutz, HD ;

Beckenkamp, K ;

Kellersohn, T ;

Moller, H ;

Peter, S .

JOURNAL OF SOLID STATE CHEMISTRY, 1996, 124 (01) :155-161

← 1 2 →