Ge-Fe Carbonyl Cluster Compounds: Ionic Liquids-Based Synthesis, Structures, and Properties.

ABSTRACT: Nine Ge-Fe carbonyl cluster compounds are prepared via ionic liquids-based synthesis. This includes the novel compounds [EMIm][Fe(CO)₃ I(GeI₃ )], [EHIm][Fe(CO)₃ I(GeI₃ )], [BMIm][GeI₂ {Fe(CO)₄ }₂ (?-I)][AlCl₄ ]₂ , [GeI₂ {Fe(CO)₄ }₂ (?-I)][Fe(AlBr₄ )₃ ], [BMIm]₂ [(FeI₂ )_0.75 {Fe(CO)₂ I(GeI₃ )₂ }₂ ], and [EHIm][Fe(CO)₄ (GeI₂ )₂ Fe(CO)₃ GeI₃ ] as well as the previously reported compounds (Fe(CO)₄ (GeI₃ )₂ , FeI₄ {GeI₃ Fe(CO)₃ }₂ , and Ge₁₂ {Fe(CO)₃ }₈ (?-I)₄ (EMIm: 1-ethyl-3-methylimidazolium, EHIm: 1-ethylimidazolium, BMIm: 1-butyl-3-methylimidazolium). With this series of compounds, a comparison of synthesis conditions and structural features is possible and, for instance, allows correlating the composition and structure of the respective Ge-Fe carbonyl cluster compounds with the type and acidity of the ionic liquid. With [EMIm][{GeI₃ }₂ Fe(CO)₃ I], moreover, we can exemplarily show the thermal decomposition as a single-source precursor in the ionic liquid, resulting in bimetallic Ge-Fe nanoparticles with small size and narrow size distribution (7.0±1.4?nm).

SUBMITTER: Wolf S 

PROVIDER: S-EPMC7874258 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature