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Ge−Fe Carbonyl Cluster Compounds: Ionic Liquids‐Based Synthesis, Structures, and Properties
ChemistryOpen ( IF 2.5 ) Pub Date : 2020-11-23 , DOI: 10.1002/open.202000254
Silke Wolf 1 , Alexander Egeberg 1 , Jens Treptow 1 , Claus Feldmann 1
Affiliation  

Nine Ge−Fe carbonyl cluster compounds are prepared via ionic liquids‐based synthesis. This includes the novel compounds [EMIm][Fe(CO)3I(GeI3)], [EHIm][Fe(CO)3I(GeI3)], [BMIm][GeI2{Fe(CO)4}2(μ‐I)][AlCl4]2, [GeI2{Fe(CO)4}2(μ‐I)][Fe(AlBr4)3], [BMIm]2[(FeI2)0.75{Fe(CO)2I(GeI3)2}2], and [EHIm][Fe(CO)4(GeI2)2Fe(CO)3GeI3] as well as the previously reported compounds (Fe(CO)4(GeI3)2, FeI4{GeI3Fe(CO)3}2, and Ge12{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][{GeI3}2Fe(CO)3I], 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).

中文翻译:

Ge−Fe 羰基簇化合物:基于离子液体的合成、结构和性能

通过基于离子液体的合成制备了九种 Ge−Fe 羰基簇化合物。其中包括新型化合物 [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 ]和[EHIm][Fe(CO) 4 (GeI 2 ) 2 Fe(CO) 3 GeI 3 ]以及先前报道的化合物(Fe(CO) 4 (GeI 3 ) 2、Fel 4 {GeI 3 Fe(CO) 3 } 2和 Ge 12 {Fe(CO) 3 } 8 (μ-I) 4 (EMIm:1-乙基-3-甲基咪唑鎓,EHIm: 1-乙基咪唑鎓,BMIm:1-丁基-3-甲基咪唑鎓)。通过这一系列化合物,可以对合成条件和结构特征进行比较,例如,可以将各个 Ge−Fe 羰基簇的组成和结构关联起来此外,通过[EMIm][{GeI 3 } 2 Fe(CO) 3 I],我们可以示例性地展示离子液体中作为单源前体的热分解,从而产生双金属Ge−Fe纳米粒子尺寸小且尺寸分布窄(7.0±1.4 nm)。
更新日期:2020-11-23
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