Open AccessGe−Fe Carbonyl Cluster Compounds: Ionic Liquids‐Based Synthesis, Structures, and Properties
Author(s) -
Wolf Silke,
Egeberg Alexander,
Treptow Jens,
Feldmann Claus
Publication year - 2021
Publication title -
chemistryopen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 29
ISSN - 2191-1363
DOI - 10.1002/open.202000254
Subject(s) - ionic liquid , bimetallic strip , cluster (spacecraft) , chemistry , thermal decomposition , decomposition , ionic bonding , nanoparticle , inorganic chemistry , crystallography , ion , organic chemistry , materials science , catalysis , nanotechnology , computer science , programming language
Nine Ge−Fe carbonyl cluster compounds are prepared via ionic liquids‐based synthesis. This includes the novel compounds [EMIm][Fe(CO) 3 I(GeI 3 )], [EHIm][Fe(CO) 3 I(GeI 3 )], [BMIm][GeI 2 {Fe(CO) 4 } 2 (μ‐I)][AlCl 4 ] 2 , [GeI 2 {Fe(CO) 4 } 2 (μ‐I)][Fe(AlBr 4 ) 3 ], [BMIm] 2 [(FeI 2 ) 0.75 {Fe(CO) 2 I(GeI 3 ) 2 } 2 ], and [EHIm][Fe(CO) 4 (GeI 2 ) 2 Fe(CO) 3 GeI 3 ] as well as the previously reported compounds (Fe(CO) 4 (GeI 3 ) 2 , FeI 4 {GeI 3 Fe(CO) 3 } 2 , and Ge 12 {Fe(CO) 3 } 8 (μ‐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][{GeI 3 } 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).