N(CH3)4.

被引：0
|
作者：
Machida, M.
Suhara, M.
Aono, S.
Kobayashi, T.
机构：
来源：
Phase Transitions | 1983年 / 3卷 / 03期
关键词：
MAGNETIC RESONANCE;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The successive phase transitions of left bracket N(CH//3)//4 right bracket //2ZnCl//4 have been investigated by means of EPR and DSC of Mn**2** plus doped samples. Changes in the EPR spectrum with varying temperature show the presence of six phases (I, II, . . . , VI) between 27 and minus 140 degree C. The spin Hamiltonian parameters and the orientations of the D tensor were determined in phases I and V. In phase II, the broadening and splitting of the spectrum are attributed to incommensuration. A discommensurate phenomenon is also detected. The spectra in phases III, IV and VI, are characteristic of modulated superstructures. The modulation amplitude and orientation angle for ZnCl//4**2** minus ion are related to the phase angle. The effect of changing temperature on the modulation amplitude and initial phase are shown.
引用
收藏
页码：227 / 239
相关论文
共 50 条
  • [1] N(CH3)4.
    Kobayashi, T.
    Suhara, M.
    Machida, M.
    Phase Transitions, 1984, 4 (04) : 281 - 290
  • [2] N(CH3)4.
    Dolinsek, J.
    Hanzel, D.
    Blinc, R.
    Koren, M.
    Physica Status Solidi (A) Applied Research, 1986, 95 (01):
  • [3] N(CH3)4.
    Paduan-Filho, Armando
    Carlin, Richard L.
    Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics, 1987, 145 (01): : 16 - 20
  • [4] The structure of the isomorphic substances N(CH3)(4) I, N(CH3)(4)Br, N(CH3)(4)Cl.
    Vegard, L
    Sollesnes, K
    PHILOSOPHICAL MAGAZINE, 1927, 4 (24): : 985 - 1001
  • [5] The reactions of (CH3)(4)N+I-, (CH3)(4)N+ICl2-, (CH3)(4)N+ICl4- and (CH3)(4)N+Cl- with trifluoromethylhypochlorite CF3OCl
    Minkwitz, R
    Brochler, R
    ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 1997, 52 (03): : 401 - 404
  • [6] The reactions of (CH3)4N+I-, (CH3)4N+ICl2-, (CH3)4N+ICl4- and (CH3)4N+Cl- with trifluoromethylhypochlorite CF3OCl
    Minkwitz, Rolf
    Bröchler, Raimund
    Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences, 1997, 52 (03): : 401 - 404
  • [7] (CH3)4N.
    Morita, Makoto
    Shoki, Tsutomu
    Journal of Luminescence, 1987, 40-41 : 678 - 679
  • [8] (CH3)4N.
    Colla, E.
    Muralt, P.
    Arend, H.
    Perret, R.
    Godefroy, G.
    Dumas, C.
    Solid State Communications, 1984, 52 (12): : 1033 - 1036
  • [9] SOLVENT-FREE SYNTHESIS OF TETRAMETHYLAMMONIUM SALTS - SYNTHESIS AND CHARACTERIZATION OF [N(CH3)(4)](2)[C2O4], [N(CH3)(4)][CO3CH4], [N(CH3)(4)][NO2], [N(CH3)(4)][CO2H], AND [N(CH3)(4)][O2C(CH2)(2)CO2CH3]
    ALBERT, B
    JANSEN, M
    ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1995, 621 (10): : 1735 - 1740
  • [10] A STUDY OF SOME TETRAMETHYLAMMONIUM METAL COMPLEXES [(CH3)4N]2CO(NCO),[(CH3)4N]2CO(NCS), [(CH3)4N]2 CO(NCSE), [(CH3)4N]2 ZN(NCO), [(CH3)4N]2 ZN(NCS),?CH3)4N!2 ZN(NCSE)
    KERGOAT, R
    GUERCHAIS, JE
    GENET, F
    BULLETIN DE LA SOCIETE FRANCAISE MINERALOGIE ET DE CRISTALLOGRAPHIE, 1970, 93 (02): : 166 - +
12345