Journal of the Chemical Society, Dalton Transactions p. 403 - 408 (1995)
Update date:2022-09-26
Topics:
Beer, Paul D.
Drew, Michael G. B.
Graydon, Andrew R.
Smith, David K.
Stokes, Sally E.
New acyclic monosubstituted aryl cobaltocenium derivatives, functionalised with additional hydrogen-bonding amine groups have been prepared.Quantitative investigation of the anion-binding properties by 1H NMR spectroscopy and electrochemical methods shows enhanced binding believed to be due to amine group participation in hydrogen bonding.Similar recognition studies on 1,1'-bis-substituted aryl cobaltocenium analogues indicate an order of magnitude selectivity for the dihydrogenphosphate anion over simple halide anions.The importance of hydrogen bonding is also illustrated by the first single-crystal structure showing the anion complex of a cobaltocenium recetptor.
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