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Get Free AccessAbstract Based on chiral, enantiomerically pure 7‐[( S )‐phenylethylurea]‐8‐hydroxyquinoline ( 1 ‐H), trinuclear helicate‐type complexes 2 – 5 are formed with divalent transition‐metal cations. X‐ray structural analyses reveal the connection of two monomeric complex units [M( 1 ) 3 ] − (M=Zn, Mn, Co, Ni) by a central metal ion to form a “dimer”. Due to the enantiopurity of the ligand, the complexes are obtained as pure enantiomers, resulting in pronounced circular dichroism (CD) spectra. Single‐ion effects and intra‐ and intermolecular coupling are observed with dominating ferromagnetic coupling in the case of the cobalt(II) and nickel(II) and dominating antiferromagnetic coupling in the case of the manganese(II) complex.
Markus Albrecht, Marcel Fiege, Paul Kögerler, Manfred Speldrich, Roland Fröhlich, Marianne Engeser (2010). Magnetic Coupling in Enantiomerically Pure Trinuclear Helicate‐Type Complexes Formed by Hierarchical Self‐Assembly. , 16(29), DOI: https://doi.org/10.1002/chem.200903108.
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Type
Article
Year
2010
Authors
6
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.1002/chem.200903108
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