On crystal chemistry of mercury chromates. Details of fragmentation and packing in crystal structures

被引：2

作者：

Borisov, SV ^{[1
]}

Magarill, SA ^{[1
]}

Pervukhina, NV ^{[1
]}

机构：

[1] Russian Acad Sci, Siberian Branch, AV Nikolaev Inst Inorgan Chem, Novosibirsk, Russia

来源：

JOURNAL OF STRUCTURAL CHEMISTRY | 2004年 / 45卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

chemistry of mercury chromates; 2[CrO4] and [CrO4](infinity) anion fragments; oxo-centered [Hg4O] tetrahedra; Hg4O2] cationic r-octabedra; Hg6Cr2O4] fragment (stella quadrangula);

D O I：

10.1007/s10947-005-0012-y

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In the crystal structures of the minerals edoylerite, deanesmithite, and wattersite and in the structures of the compounds HgCrO4, Hg3O2CrO4 (analog of the mineral schuetteite), and Pb2HgO2CrO4, there are atomic groups or fragments linked by relatively strong (covalent) bonds. The anion fragments represented by CrO4 tetrahedra are condensed into pairs and chains, in which adjacent tetrahedra are related by symmetry centers. The cation fragments form various patterns from zigzag ribbons of [Hg4S4] rings to ribbons and frameworks with [Hg6O2] r-octahedra, [Hg2CrO] and [Pb2HgO] triangles, and [Hg6Cr2O4] (stella quadrangula) groups. The symmetry of the fragments and their assemblies is analyzed. Analysis of the reference crystal-forming planes has revealed cation sublattices (close to the F-cubic sublattice in two cases), determining the typical features of the structures.

引用

页码：446 / 453

页数：8

共 22 条

[1]

[Anonymous], 1972, CRYSTAL CHEM PHYS ME

[2] NEUTRON-DIFFRACTION STUDY OF MERCURY(II)CHROMATE HEMIHYDRATE, HGCRO-4.1/2H-2O [J].

AURIVILLIUS, K ;

STALHANDSKE, C .

ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1975, 142 (3-4) :129-141

[3]

Bliznyuk N. A., 1992, Zh. Strukt. Khim, V33, P145

[4] Peculiarities of crystal structures of rare-earth metal sulfides with the period 4 Å [J].

Borisov, SV ;

Podberezskaya, NV ;

Pervukhina, NV ;

Magarill, SA .

ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1998, 213 (05) :253-258

[5] Experimental crystallography from atomic to supramolecular scale [J].

Borisov, SV ;

Klevtsova, RF ;

Magarill, SA ;

Pervukhina, NV ;

Podberezskaya, NV .

JOURNAL OF STRUCTURAL CHEMISTRY, 2002, 43 (04) :615-621

[6]

BORISOV SV, 2000, KRISTALLOGRAFIYA, V45, P779

[7]

BORISOV SV, 1985, ZH STRUKT KHIM, V26, P98

[8]

BORISOV SV, 2003, ZH STRUKT KHIM, V44, P1102

[9]

BORISOV SV, 1996, ZH STRUKT KHIM, V37, P907

[10]

BORISOV SV, 2003, ZH STRUKT KHIM, V44, P187

← 1 2 3 →