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- W2989049063 abstract "Reactions of the ligand precursors 2‐(2′‐pyridyl)‐3,5‐Me 2 ‐pyrrole ( L 1 H) and 2‐(2‐pyridyl)‐3,4,5‐Me 3 ‐pyrrole ( L 2 H) with [(Me 3 Si) 2 N] 3 RE( μ ‐Cl)Li(THF) 3 in toluene afforded a series of low‐coordinated rare‐earth metal bis‐amido complexes L 1 RE[N(SiMe 3 ) 2 ] 2 [RE = Y ( 1a ), Dy ( 1b ), Er ( 1c ), Yb ( 1d )] and L 2 RE[N(SiMe 3 ) 2 ] 2 [RE = Y ( 2a ), Dy ( 2b ), Er ( 2c ), Yb ( 2d )]. With the ionic radius of rare‐earth metal increasing, the reaction of L 1 H and [(Me 3 Si) 2 N] 3 RE( μ ‐Cl)Li(THF) 3 gave dinuclear complexes ( L 1 ) 2 RE( μ ‐Cl)( μ ‐ η 5 : η 1 : η 1 ‐ L 1 )RE( L 1 )[N(SiMe 3 ) 2 ] 2 [RE = Sm ( 1e ), Pr ( 1f )]; however, the reaction of L 2 H and [(Me 3 Si) 2 N] 3 Sm( μ ‐Cl)Li(THF) 3 afforded ( L 2 ) 2 Sm[N(SiMe 3 ) 2 ] 2 ( 2e ). Results indicated that the ionic radius of rare‐earth metal and subtle change in the ligands have substantial effects on the structure and bonding mode of complexes. The complexes showed a high catalytic activity for the ring‐opening reaction of cyclohexene oxide with amines to afford various β ‐aminoalcohols under mild solvent‐free conditions." @default.
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- W2989049063 date "2019-11-13" @default.
- W2989049063 modified "2023-09-28" @default.
- W2989049063 title "Syntheses, structures and catalytic activities of low‐coordinated rare‐earth metal complexes containing 2,2′‐pyridylpyrrolides" @default.
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- W2989049063 doi "https://doi.org/10.1002/aoc.5275" @default.
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