Abstract
The crystal structure [(C2H5)4N]2CuCl4 has been determined by X-ray diffraction at 243K. The room temperature phase (phase I) belongs to the space group P42/nm [1] whereas the low temperature phase (phase II) is orthorhombic and belongs to the space group Pnna. The phase transition at Tc=258K is of improper ferroelastic type and it is associated with the ordering of the CuCl4 2− and a partial ordering of the [(C2H5)4N]+ ions which are disordered in the high temperature tetragonal phase. At lower temperature, there occurs another instability which could correspond to a complete ordering in the crystal.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Mahoui, A., Lapasset, J., Moret, J., Saint Grégoire, P.: Z. Krist.210, 125–128 (1995)
Stucky, G.D., Folkers, J.B., Kistenmacher, T.J.: Acta Crystallogr.23, 1064 (1967)
Cain, B.E., Thesis, University Of Syracuse, USA (1971)
Lamotte, J., Vermeire, M.: J. Appl. Crystallogr8, 689 (1975)
Melia, T.P., Merrifield, R.: J. Chem. Soc. (A) 1166 (1970)
Melia, T.P., Merrifield, R.: J. Inorg. Nucl. Chem.32, 1873–1876 (1970)
Landee, C.P., Westrum, Jr. E.F.: J. Chem. Therm.11, 247–260 (1979)
Uehara, A., Iimura, A., Shimizu, K., Monta, S., Yoshifuji, A., Tsuchiya, R., Imai, H., Uemori, Y., Nakagawa, S., Kyuno, E.: Thermochimica Acta77, 299–309 (1984)
Ghoch, A., De, G., Chaudhuri, N.R.: Thermochimica Acta108, 97–10 (1986)
Ghoch, A., De, G., Chaudhuri, N.R.: Thermochimica Acta96, 367–371 (1986)
Czapla, Z., Dacko, S.: Ferroelectrics125, 17–22 (1992)
Kahrizi, M., Steinitz, M.O.: Solid State Commun70, (6), 599–603 (1989)
Kahrizi, M., Steinitz, M.O.: Solid State Commun74, (5), 333–335 (1990)
Caetano, O., Lopez, M., Mahoui, A., Lapasset, J., Moret, J., Assih, T., Saint Grégoire, P.: Ferroelectric Letters19, no 3/4) (1995)
Mahoui, A., Lapasset, J., Moret, J.: Acta Crystallogr. C50, 358–362 (1994)
Sheldrick, G.M.: SHELX76 Program for Crystal Structure Determination. Cambridge 1976
Johnson, C.K.: ORTEPII, Report ORNL-5138. Oak Ridge National Laboratory, Tennessee, USA 1976
André, D., Michalowicz, A.: MacORTEP. Laboratoire de Physicochimie Structurale, UFR de Sciences et Technologie, Créteil, France 1991
Cromer, D.T., Mann, J.B.: Acta Crystallogr. A24, 321–324 (1968)
International Tables For X-Ray Crystallography. vol. IV, Reidel: Dordrecht 1974
International Tables for X-Ray Crystallography. vol. III, pp. 213–316, Kynoch, Birmingham 1962
Wolthuis, A.J., Huiskamp, W.J., De Jongh, L.J., Carlin, R.L.: Physica B142, 301–319 (1986)
Helgesson, G., Jagner, S.: Acta Chem. Scand A41, 556–561 (1987)
Powell, H.M., Wait, E.: J. Chem. Soc. (A) 1866–1872 (1958)
Brown, D.S., Einstein, F.W.B., Tuck, D.G.: Inorg. Chem.8, 14–18 (1969)
Wait, E., Powell, H.M.: J. Chem. Soc. (A) 1872–1875 (1958)
Russel, R.D., Tucker, P.A., Whittaker, C.: Acta Crystallogr. B31, 2530–2531 (1975)
Doudin, B., Chapuis, G.: Acta Crystallogr. B46, 175–180 (1990)
Halvorson, K.E., Patterson, C., Willet, R.D.: Acta Crystallogr. B46, 508–519 (1990)
Nye, J.F.: Physical Properties Of Crystals. Oxford: Clarendon Press 1957
Gufan, Yu.M., Larin, E.S.: Dokl Akad. Nauk SSSR242, 1311–1313 (1978) [english translation: Sov. Phys. Dokl.23, 754–755 (1978)]
Gufan Yu.M., Larin E.S.: Izv. Akad. Nauk. SSSR, Ser. Fiz.43, 1567–1585 (1979) [english translation. Bull. Scad. Sci. USSR43, 14–29 (1979)]
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Mahoui, A., Lapasset, J., Sannikov, D.G. et al. On the ordering in [(C2H5)4N]2CuCl4 crystal: an X-ray study and theoretical considerations. Z. Phys. B - Condensed Matter 99, 543–549 (1995). https://doi.org/10.1007/s002570050074
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s002570050074