The importance of the counter-cation in reductive rare-earth metal chemistry: 18-crown-6 instead of 2,2,2-cryptand allows isolation of [Y<sup>II</sup>(NR<sub>2</sub>)<sub>3</sub>]<sup>1−</sup> and ynediolate and enediolate complexes from CO reactions
Austin J. Ryan, Joseph W. Ziller, William J. Evans
Abstract
The use of 18-crown-6 (18-c-6) in place of 2.2.2-cryptand (crypt) in rare earth amide reduction reactions involving potassium has proven to be crucial in the synthesis of Ln(<sc>ii</sc>) complexes and isolation of their CO reduction products.
Topics & Concepts
CryptandChemistryRare earthMetalPotassium18-Crown-6AmideInorganic chemistryCrown (dentistry)Reduction (mathematics)StereochemistryMoleculeOrganic chemistryMineralogyIonMaterials scienceGeometryComposite materialMathematicsInorganic Chemistry and MaterialsCoordination Chemistry and OrganometallicsOrganometallic Complex Synthesis and Catalysis