Crystal Growth and Structures of Three New Platinates: Ln₃NaPtO₇ (Ln = La, Nd) and La₄PtO₇

Author(s)

Tara J. Hansen, University of South Carolina - Columbia
René B. Macquart, University of South Carolina - Columbia
Mark D. Smith, University of South Carolina - ColumbiaFollow
Hans-Conrad zur Loye, University of South Carolina - ColumbiaFollow

Document Type

Paper

Subject Area(s)

Crystal growth,structures,three,new platinates, Ln3NaPtO7

Abstract

Single crystals of three lanthanide containing platinates, La₃NaPtO₇, Nd₃NaPtO₇ and La₄PtO₇, were grown from carbonate fluxes. La₃NaPtO₇ and Nd₃NaPtO₇ crystallize in the trigonal space group R3¯c with lattice parameters of a = 5.7458(2) Å and c = 35.650(1) Å, and a = 5.6862(5) Å and c = 34.896(3) Å, respectively. La₄PtO₇ crystallizes in the monoclinic space group I2/m with lattice parameters of a = 9.799(1) Å, b = 4.0014(5) Å, c = 9.491(1) Å and β = 91.759(5)°. La₃NaPtO₇ and Nd₃NaPtO₇ are the first all-platinum members of the [A_nB_n−1O_3n][A₂O] family of oxides. The difference in structure types of the three compounds arises from the size of the alkali metal cations present in the fluxes. Synthetic conditions as well as the structure differences between these platinates are discussed.

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.solidstatesciences.2007.06.014

Publication Info

Published in Solid State Sciences, Volume 9, Issue 9, 2007, pages 785-791.

Rights

© Solid State Sciences 2007, Elsevier.

APA Citation

Hansen, T., Macquart, R., Smith, M., & zur Loye, H.-C. (2007). Crystal Growth and Structures of Three New Platinates: Ln₃NaPtO₇ (Ln = La, Nd) and La₄PtO₇. Solid State Sciences, 9(9), 785–791. https://doi.org/10.1016/j.solidstatesciences.2007.06.014