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Synthesis of hydroxo-bridged Dy(iii) dimers supported by crown ethers through C-H activation and oxygen-atom transfer of Me3NO
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DOI：10.1039/d6dt00818f.png)
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Abstract
En 中文
Me3NO is well known for undergoing an oxygen-atom transfer reaction, while the C-H activation of Me3NO with organometallic complexes is far less explored. Herein, we report the synthesis and characterization of two hydroxo-bridged dinuclear complexes [Dy(12-crown-4)(& micro;-OH)(CH3CN)I](2)I-2(CH3CN)(2) (3) and [Dy(15-crown-5)(& micro;-OH)(CH3CN)](2)I-4 (4), which were formed by the reactions of different crown ether supported complexes [Dy(12-crown-4)(2)(CH3CN)]I-3 (1) and [Dy(15-crown-5)(CH3CN)(2)I]I-2 (2) with Me3NO, respectively. The observation of bridging hydroxo groups in complexes 3 and 4 indicates that Me3NO underwent C-H activation along with OAT during the reactions. In contrast, the reactions of 1 and 2 with H2O led to two hydrated adducts [Dy(12-crown-4)(2)(H2O)](CH3CN)(3)I-3 (5) and [Dy(15-crown-5)(CH3CN)(2)(H2O)]I-3 (6), respectively.
Keywords:
METAL-CARBONYLS
SUBSTITUTION-REACTIONS
LANTHANIDE COMPLEXES
MAGNETIC-PROPERTIES
SERIES
RELAXATION
REACTIVITY
MECHANISM
KINETICS
CLUSTERS
Journal
IF:
3.3
Papers:
3.3W
Citations:
7.5W
Organization
Cited Papers