Aromatic and antiaromatic gold(III) hexaphyrins with multiple gold-carbon bonds |
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Authors: | Mori Shigeki Osuka Atsuhiro |
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Institution: | Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan. |
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Abstract: | Au(III) metalation of hexakis(pentafluorophenyl) 26]hexaphyrin led to formation of aromatic mono-Au(III) hexaphyrin and bis-Au(III) hexaphyrin, in which the inner pyrrolic beta-protons are activated to form gold-carbon bonds, hence accommodating Au(III) ion with a NNCC core in a square planar manner. Two-electron reductions of these complexes with NaBH4 provided the corresponding 28]hexaphyrin complexes which exhibit distinct paratropic ring currents. |
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