Metallo-supramolecular libraries: triangles, polymers and double-helicates assembled by copper(I) coordination to directly linked bis-pyridylimine ligands
UNSPECIFIED. (2003) Metallo-supramolecular libraries: triangles, polymers and double-helicates assembled by copper(I) coordination to directly linked bis-pyridylimine ligands. DALTON TRANSACTIONS (11). pp. 2141-2148. ISSN 1477-9226Full text not available from this repository.
Official URL: http://dx.doi.org/10.1039/b311005a
Copper(I) coordination is investigated for three pyridine-azine ligands, in which two pyridylimine binding units are linked directly through the imine nitrogen atoms. Substituents on the imine units of the ligands influence the metallo-supramolecular architecture adopted. X-Ray analysis confirms the solid state structures for a dinuclear double-helicate, a trinuclear circular-helicate and a polymeric array. In each structure the copper(I) centre is four-coordinate. In acetone solution a library of architectures is observed. For the unsubstituted and methyl substituted ligands dinuclear (double-helical) and trinuclear (circular helical) structures dominate. With phenyl substituents only the double-helical species is present in solution. The work casts further light on the use of multiple competing interactions ('frustration') to design libraries of supramolecular architectures.
|Item Type:||Journal Article|
|Subjects:||Q Science > QD Chemistry|
|Journal or Publication Title:||DALTON TRANSACTIONS|
|Publisher:||ROYAL SOC CHEMISTRY|
|Number of Pages:||8|
|Page Range:||pp. 2141-2148|
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