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Using Chiral Ligand Substituents To Promote the Formation of Dinuclear, Double‐Stranded Iron, Manganese, and Zinc Mesocates
Author(s) -
Reid Stuart D.,
Wilson Claire,
De Matteis Cristina I.,
Love Jason B.
Publication year - 2007
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200700804
Subject(s) - chemistry , protonolysis , manganese , zinc , ligand (biochemistry) , divalent , medicinal chemistry , condensation , salt (chemistry) , stereochemistry , schiff base , halide , polymer chemistry , inorganic chemistry , catalysis , organic chemistry , physics , biochemistry , receptor , thermodynamics
The synthesis and structures of dinuclear manganese, iron, and zinc complexes of chiral di‐iminodipyrromethane ligands (L) are reported. Schiff base condensation reactions between 5,5′‐diformyl‐2,2′‐dipyrromethane and the chiral amines (–)‐( R )‐CH(Me) t Bu and (+)‐( R )‐CH(Me)Ph result in the straightforward synthesis of the new, chiral ligands H 2 L 2 and H 2 L 3 , respectively. Salt elimination reactions between K 2 L and divalent Mn and Fe halides, and protonolysis reactions between ZnMe 2 and H 2 L result in the formation of the new dinuclear complexes [M 2 (L) 2 ]. Investigation of the structures of these compounds in solution and in the solid state reveal that chiral mesocates are formed for L = L 2 , whereas for L = L 3 , a racemic mixture of helicates is present.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)