THE TEMPERATURE AND CHEMICAL-COMPOSITION DEPENDENCE OF THE MODULATION WAVE VECTOR IN ((CH3)4N)2ZNCL4-XBRX COMPOUNDS DETERMINED FROM THE MORPHOLOGY

被引：6

作者：

VOGELS, LJP ^{[1
]}

VERHEIJEN, MA ^{[1
]}

MEEKES, H ^{[1
]}

BENNEMA, P ^{[1
]}

机构：

[1] CATHOLIC UNIV NIJMEGEN,RIM,SOLID STATE CHEM LAB,6525 ED NIJMEGEN,NETHERLANDS

来源：

JOURNAL OF CRYSTAL GROWTH | 1992年 / 121卷 / 04期

关键词：

D O I：

10.1016/0022-0248(92)90576-5

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

In this paper we investigate the morphology of ((CH3)4N)2ZnCl4-xBrx (x = 0 to 4) solid solution crystals in the incommensurate and lock-in phases by sphere growth experiments. On these spheres satellite faces appear, which give direct information about the crystal structure. The crystal structure can be described by a normal basic structure distorted by a displacive modulation with wave vector q, added to the classical 3D lattice. The sphere experiments reveal directly the phase transitions in the crystal structure as well as the magnitude of the modulation wave vector. As a result, we confirm the data on q as determined in X-ray diffraction experiments, and find in addition a new commensurate phase (q = 4/11 c*) for x = 1.2 to 2.19 in between two incommensurate phases. We discuss the possible symmetry of this phase.

引用

页码：697 / 708

页数：12

共 50 条

[31] A STRUCTURAL STUDY OF PHASE-TRANSITIONS IN [N(CH3)4]2ZNCL4 AT LOW-TEMPERATURE
KASANO, H
KOSHIJI, N
MASHIYAMA, H
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1992, 61 (01) : 348 - 356
[32] Synthesis, calorimetric study, infrared spectroscopy and crystal structure investigation of β-[tetraethylammonium tetramethylammonium tetrachlorozincate(II)] [β]-[(C2H5)4N][(CH3)4N]ZnCl4
Hlel, F.
Rheim, A.
Guerfel, T.
Guidara, K.
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 2006, 61 (08): : 1002 - 1006
[33] Temperature dependence of the crystal-optics characteristics of [N(CH3)4]2ZnCl4:Ni2+ crystals with correlated motion of tetrahedral groups
Sveleba, S. A.
Katerinchuk, I. M.
Semotyuk, O. V.
Kunyo, I. M.
Karpa, I. V.
Phitsych, E. I.
Pankivskyi, Yu. I.
CRYSTALLOGRAPHY REPORTS, 2010, 55 (02) : 253 - 257
[34] Dielectric and electric studies of the [N(CH3)4][N(C2H5)4]ZnCl4 compound at low temperature
Karoui, K.
Ben Rhaiem, A.
Hlel, F.
Arous, M.
Guidara, K.
MATERIALS CHEMISTRY AND PHYSICS, 2012, 133 (01) : 1 - 7
[35] Temperature dependence of the crystal-optics characteristics of [N(CH3)4]2ZnCl4:Ni2+ crystals with correlated motion of tetrahedral groups
S. A. Sveleba
I. M. Katerinchuk
O. V. Semotyuk
I. M. Kunyo
I. V. Karpa
E. I. Phitsych
Yu. I. Pankivskyi
Crystallography Reports, 2010, 55 : 253 - 257
[36] STRUCTURAL PHASE-TRANSITIONS IN ((C2H5)4N)2CDX4 AND ((CH3)4N)2CDX4 COMPOUNDS WITH X = CL, BR
KAHRIZI, M
STEINITZ, MO
SOLID STATE COMMUNICATIONS, 1989, 70 (06) : 599 - 603
[37] SPECIFIC-HEAT OF (N(CH3)4)2ZNCL4 IN 80-300-K TEMPERATURE REGION
STRUKOV, BA
TARASKIN, SA
UESU, Y
VAN, M
SUVKHANOV, AB
IZVESTIYA AKADEMII NAUK SSSR SERIYA FIZICHESKAYA, 1990, 54 (04): : 710 - 713
[38] CRYSTAL-STRUCTURE AND PRESSURE-DEPENDENCE OF ELECTRICAL CONDUCTIVITIES OF [(CH3)4N][PT(DMIT)2]2
KOBAYASHI, A
MIYAMOTO, A
KOBAYASHI, H
CLARK, A
UNDERHILL, AE
JOURNAL OF MATERIALS CHEMISTRY, 1991, 1 (05) : 827 - 830
[39] The structure of [(CH3)3(C6H5)N]2ZnCl4 at room temperature
Blachnik, R.
Reuter, H.
Siethoff, C.
Zeitschrift fuer Kristallographie, 210 (07):
[40] CRYSTALLINE-STRUCTURE OF COMPLEX TECHNETIUM COMPOUNDS .2. [(CH3)4N] [TCV(NCS)6]
HAUCK, J
SCHWOCHA.K
BUCKSCH, R
INORGANIC & NUCLEAR CHEMISTRY LETTERS, 1973, 9 (09): : 927 - 929

← 1 2 3 4 5 →