Comparison of the Electrophilicities of the Free and the (Tricarbonyl)iron-Coordinated Tropylium Ion
作者:Herbert Mayr、Karl-Heinz Müller、Armin R. Ofial、Michael Bühl
DOI:10.1021/ja982072k
日期:1999.3.1
(tricarbonyl)iron complexes of the tropyliumion E(6) = −3.81 ± 0.24 and of the dihydrotropylium ion E(22) = −9.88 indicate that the former is 105−106 times more reactive toward nucleophiles. Comparison with the electrophilicity parameter of the free tropyliumion E(1) = −4.62 ± 0.57 shows that coordination by Fe(CO)3 affects its electrophilic reactivity only slightly. Density-functional calculations