AI Article Synopsis
- The study introduces stable and crystalline chromium(I) tetracarbonyl complexes that utilize pyridyl-MIC ligands along with weakly coordinating anions (WCAs), which include specific aluminum and boron derivatives.
- Comprehensive characterization of these complexes was achieved through crystallographic, spectroscopic, and theoretical methods, with a focus on how counter anions affect IR and EPR spectroscopic properties.
- This research marks the first instance of such stable chromium complexes with a chelating ligand, contributing valuable insights into their photochemical and electrochemical behaviors.
Article Abstract
Here we present stable and crystalline chromium(I) tetracarbonyl complexes with pyridyl-MIC (MIC=mesoionic carbene) ligands and weakly coordinating anions (WCA=[Al(OR ) ] , R =C(CF ) and BAr =[B(Ar ) ] , Ar =3,5-(CF ) C H ). The complexes were fully characterized via crystallographic, spectroscopic and theoretical methods. The influence of counter anions on the IR and EPR spectroscopic properties of the Cr complexes was investigated, and the electronic innocence versus non-innocence of WCAs was probed. These are the first examples of stable and crystalline [Cr(CO) ] complexes with a chelating accepting ligand, and the data presented here are of relevance for both the photochemical and the electrochemical properties of these classes of compounds.
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| http://dx.doi.org/10.1002/chem.202301205 | DOI Listing |
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