Electronic communication through the ureylene bridge: spectroscopy, structure and electrochemistry of dimethyl 1,1-ureylenedi(1-ferrocenecarboxylate) |
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Authors: | Khaled Mahmoud Gabriele Schatte |
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Affiliation: | a Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK, Canada S7N 5C9 b Saskatchewan Structural Science Centre, University of Saskatchewan, Saskatoon, SK, Canada S7N 5C9 |
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Abstract: | Dimethyl 1′,1′-ureylenedi(1-ferrocenecarboxylate) (1) formed during the synthesis of 1-amino, 1′-ferrocenecarboxylic acid shows virtual molecular centrosymmetry. Electronic coupling between the two Fc groups through the ureylene bridge results in both Fc groups being individually oxidizable (ΔE1/2?0.14 V). The possible existence of intermolecular electronic communication has discussed. The oxidation was followed by spectroelectrochemistry. The separation between the two halfwave potentials ΔE1/2=137±5 mV and the comproportionation constant Kc=207. |
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Keywords: | Electronic communication Diferrocene Spectroelectrochemistry Ureylene bridge |
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