Synthesis, structure and anion co-ordination chemistry of a novel macrocyclic cobaltocenium receptor
- 1 January 1995
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 21,p. 3447-3453
- https://doi.org/10.1039/dt9950003447
Abstract
A new macrocyclic amide-substituted cobaltocenium receptor, 1,1′-[(ethylenedioxy)bis(ethyleneaminocarbonyl)]cobaltocenium hexafluorophosphate 2 has been prepared and its single-crystal X-ray structure determined. Proton NMR anion co-ordination studies revealed that 2 and other new acyclic cobaltocenium derivatives complex chloride and bromide anions with 1:1 stoichiometry. Comparative stability constant evaluations imply that the macrocyclic receptor 2 forms halide complexes of greatest thermodynamic stability, suggestive of a ‘macrocyclic anion effect’. Cyclic voltammetric investigations showed the cobaltocenium receptors to electrochemically recognise halide anions.Keywords
This publication has 0 references indexed in Scilit: