RbNb6Cl12O2: CRYSTAL STRUCTURE AND MAGNETIC PROPERTIES

https://doi.org/10.22146/ijc.21640

Fakhili Gulo(1*)

(1) Department of Chemistry Education, FKIP - Sriwijaya University, Jl. Palembang-Prabumulih Km 32 Indralaya, OI, 30662
(*) Corresponding Author

Abstract


A novel niobium oxychloride cluster compound, RbNb6Cl12O2 was obtained by solid state synthesis from stoichiometric mixture of RbCl, Nb2O5, NbCl5 and Nb powder, heated at 675 °C. Its structure was determined by single-crystal X-ray diffraction. It crystallizes in the monoclinic system (a = 6.8097(4) Å, b = 11.6700(9) Å, c = 12.5090(9) Å, ß = 101.337(4) °, V = 974.68(12) Å3, and Z = 2) with the space group of P21/c. The cluster framework of this compound is based on  units connected via oxide ligands in the a-direction with two Nb-O linkages between adjacent clusters, which resembles intercluster bonding in Chevrel-Sergent phases. In the other two directions, the linkages occur through single Cla-a bridges. The framework generates channels where the cations Rb+ are located. This compound contains valence electron concentration (VEC) of 15 per cluster unit and therefore exhibits the paramagnetic behavior.


Keywords


niobium oxychloride cluster; solid state; VEC; paramagnetic

Full Text:

Full Text Pdf


References

[1] Simon, A., “Discrete and Condensed Transition Metal Clusters in Solids” in Clusters and Colloids – From Theory to Applications. Ed. Schmidt, G., VCH Verlagsgesellschaft mbH, Weinheim, 1994, 373 – 458.

[2] Fisher, Ø., and Maple, M.P., “Superconducting Ternary Compounds: Prospectsand Perseptives” in "Topics in Current Physics: Superconductivity in Ternary Compounds. Eds. Fisher, Ø., and Maple, M.P., Springer-Verlag, Berlin, 1982, 1 – 24.

[3] Fischer, C., Alonso-Vante, N., Fiechter, S., and Tributsch, H., 1995, J. Appl. Electrochem. 25, 1004.

[4] Tarascon, J.M., Di Salvo, F.J., Murphy, D.W., Hull, G.W., Rietman, E.A., and Waszczak, S.V., 1984, J. Solid State Chem., 54, 104.

[5] Yaghi, O.M., Scott, M.J., and Holm, R.H., 1992, Inorg. Chem., 31, 4778.

[6] Perrin, C., 1997, J. Alloys Comp., 262, 10.

[7] Chevrel, R., Sergent, M., and Prigent, J., 1971, J. Solid State Chem., 3, 515.

[8] Sägebarth, M. E., Simon, A., Imoto, H., Weppner, W., and Kliche, G., 1995, Z. Anorg. Allgem. Chem., 621, 1589.

[9] Köhler, J., Tischtau, R., and Simon, A., 1991, J. Chem. Soc., Dalton Trans., 829.

[10] Xu, J., Emge, T., and Greenblatt, M., 1996, J. Solid State Chem., 123, 21.

[11] Cordier, S., Gulo, F., and Perrin, C., 1999, Solid State Sci., 1, 637.

[12] Gulo, F. and Perrin, C., 2002, J. Solid State Chem, 163, 325.

[13] Gulo, F. and Perrin, C., 2000, J. Mater. Chem. 10, 1721.

[14] Sheldrick, G.M., 1997, SHELXS-97, Crystal Structure Solution, University of Göttingen.

[15] Sheldrick, G.M., 1997, SHELXL-97, Crystal Structure Refinement, University of Göttingen.

[16] Naumov, N.G., Cordier, S., Gulo, F., Roisnel, T., Fedorov, V.E., and Perrin, C., 2003, Inorg. Chim. Acta, 350, 503.

[17] Anokhina, E.V., Essig, M.W., Day, C.S., and Lachgar, A., 1999, J. Am. Chem. Soc., 121, 6827.

[18] Simon, A., von Schnering, H.-G., and Schäfer, H., 1968, Z. Allg. Anorg. Chem., 361, 235.

[19] Simon, A., von Schnering, H.-G., Wöhrle, H., and Schäfer, H., 1965, Z. Allg. Anorg. Chem., 339, 155.

[20] Gulo, F. and Perrin, C., 2000, Mater. Res. Bull., 35, 253.

[21] Cordier, S., Perrin, C., and Sergent, M., 1996, Mat. Res. Bull., 31, 683.

[22] Ogliaro, F., Cordier, S., Halet, J.F, Perrin, C., Saillard, J.Y., and Sergent, M., 1998, Inorg. Chem., 37, 6199.



DOI: https://doi.org/10.22146/ijc.21640

Article Metrics

Abstract views : 670 | views : 724


Copyright (c) 2010 Indonesian Journal of Chemistry

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

 


Indonesian Journal of Chemistry (ISSN 1411-9420 / 2460-1578) - Chemistry Department, Universitas Gadjah Mada, Indonesia.

Web
Analytics View The Statistics of Indones. J. Chem.