Confusion of Möbius aromaticity: disruption of annulenic pathway in singly N-confused [28]hexaphyrin and its mono-Pd(II) complex.
نویسندگان
چکیده
Singly N-confused [26] and [28]hexaphyrins (4, 5) with planar and twisted structures, respectively, were prepared via the acid catalyzed [3 + 3] condensation of N-confused and regular tripyrrane precursors. Hückel aromaticity is observed for [26]hexaphyrin, while the [28]hexaphyrin and its mono-Pd(II) complex exhibit "nonaromaticity" in spite of their Möbius-type structures, judging from the spectroscopic features and theoretical calculations.
منابع مشابه
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عنوان ژورنال:
- Dalton transactions
دوره 41 20 شماره
صفحات -
تاریخ انتشار 2012