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Iron Vanadates Synthesized from Hydrothermal Brines: Rb2FeV6O16, Cs2FeV6O16, and SrFe3V18O38
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2019-11-04 , DOI: 10.1002/ejic.201900799 Tiffany M. Smith Pellizzeri 1, 2 , Colin D. McMillen 1 , Yimei Wen 1 , George Chumanov 1 , Joseph W. Kolis 1, 3
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2019-11-04 , DOI: 10.1002/ejic.201900799 Tiffany M. Smith Pellizzeri 1, 2 , Colin D. McMillen 1 , Yimei Wen 1 , George Chumanov 1 , Joseph W. Kolis 1, 3
Affiliation
Three new alkali and alkaline earth iron vanadates have been synthesized via high‐temperature hydrothermal brines. Compound 1, Rb2FeV6O16, is built from vanadium(IV/V) oxo layers with iron(III) tetrahedra embedded in them, crystallizing in space group Cc. Compound 2, Cs2FeV6O16, has similar vanadium‐rich layers, but with a very different pattern to the layered structure in space group P1. The difference in alkali metal between 1 and 2 influences the polarity of the iron vanadate layers. Compound 3, SrFe3V18O38, crystallizes in space group R3, with a complex three‐dimensional vanadate framework containing vanadium(IV) and vanadium(III/IV) octahedra. The framework is templated by Fe(III) tetrahedra and octahedra as well as Sr cuboctahedra. All compounds were characterized by single‐crystal X‐ray diffraction, Raman spectroscopy, and energy‐dispersive X‐ray spectroscopy (EDX). Broadly, this study demonstrates the structural variety that can be obtained by exploiting the sensitivity of vanadium's coordination and oxidation state in a novel hydrothermal halide environment.
中文翻译:
由水热卤化物合成的钒酸铁:Rb2FeV6O16,Cs2FeV6O16和SrFe3V18O38
通过高温热液盐水合成了三种新的碱金属和碱土金属钒酸盐。化合物1(Rb 2 FeV 6 O 16)由钒(IV / V)羰基合成层组成,其中嵌入了铁(III)四面体,在空间群Cc中结晶。化合物2 Cs 2 FeV 6 O 16具有相似的富钒层,但与空间群P 1中的层状结构的图案非常不同。1和2之间的碱金属差异会影响钒酸铁层的极性。化合物3SrFe 3 V 18 O 38,在空间群R 3中结晶,具有包含钒(IV)和钒(III / IV)八面体的复杂三维钒酸盐骨架。该框架由Fe(III)四面体和八面体以及Sr立方八面体作为模板。所有化合物均通过单晶X射线衍射,拉曼光谱和能量色散X射线光谱(EDX)进行表征。广泛地讲,这项研究证明了在新颖的热液卤化物环境中利用钒配位和氧化态的敏感性可以获得的结构多样性。
更新日期:2019-11-04
中文翻译:
由水热卤化物合成的钒酸铁:Rb2FeV6O16,Cs2FeV6O16和SrFe3V18O38
通过高温热液盐水合成了三种新的碱金属和碱土金属钒酸盐。化合物1(Rb 2 FeV 6 O 16)由钒(IV / V)羰基合成层组成,其中嵌入了铁(III)四面体,在空间群Cc中结晶。化合物2 Cs 2 FeV 6 O 16具有相似的富钒层,但与空间群P 1中的层状结构的图案非常不同。1和2之间的碱金属差异会影响钒酸铁层的极性。化合物3SrFe 3 V 18 O 38,在空间群R 3中结晶,具有包含钒(IV)和钒(III / IV)八面体的复杂三维钒酸盐骨架。该框架由Fe(III)四面体和八面体以及Sr立方八面体作为模板。所有化合物均通过单晶X射线衍射,拉曼光谱和能量色散X射线光谱(EDX)进行表征。广泛地讲,这项研究证明了在新颖的热液卤化物环境中利用钒配位和氧化态的敏感性可以获得的结构多样性。