Article Cite This: Inorg. Chem. 2017, 56, 13311-13320
pubs.acs.org/IC
Bimetallic Trifluoroacetates as Single-Source Precursors for Alkali− Manganese Fluoroperovskites B. Dulani Dhanapala,† Hashini N. Munasinghe,† Leopoldo Suescun,‡ and Federico A. Rabuffetti*,† †
Department of Chemistry, Wayne State University, Detroit, Michigan 48202, United States Cryssmat-Lab/Cátedra de Física/DETEMA, Facultad de Química, Universidad de la República, Montevideo 11800, Uruguay
‡
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S Supporting Information *
ABSTRACT: Alkali−manganese(II) trifluoroacetates were synthesized, and their potential as single-source precursors for the solid-state and solution-phase synthesis of AMnF3 fluoroperovskites (A = Na, K, Rb, Cs) was demonstrated. Crystals of Na2Mn2(tfa)6(tfaH), K2Mn2(tfa)6(tfaH)2·H2O, Rb2Mn2(tfa)6·H2O, and CsMn(tfa)3 (tfa = trifluoroacetato) were grown via solvent evaporation and their crystal structures solved using single-crystal X-ray diffraction (XRD). Chemical purity was confirmed using thermal analyses (TGA/DTA) and Rietveld analysis of powder XRD patterns. Thermal decomposition of Na2Mn2(tfa)6(tfaH), K2Mn2(tfa)6(tfaH)2·H2O, Rb2Mn2(tfa)6·H2O, and CsMn(tfa)3 in both the solid state and solution phase yielded crystalline, single-phase NaMnF3, KMnF3, RbMnF3, and CsMnF3 fluoroperovskites, respectively. Nanocrystals (
