π-Extended Open-[70]Fullerenes with a Fused Azaacene
Shumpei Sadai1, Yoshifumi Hashikawa1, Yasujiro Murata1
1Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
Abstract:
By the reaction with aromatic diamines, π-extended open-[60]fullerenes were synthesized, in which the nucleophilicity of the diamine switched annulation and orifice-cutting modes, thus generating a fused pyrazine or imidazole. Employing this method for [70]fullerene analogues, we synthesized the first π-extended [70]fullerenes exhibiting strong absorption behavior owing to the fused azaacene and 10π-elongation from the [60]fullerene core. The thus-formed 20-membered ring orifice realized the encapsulation of argon within the [70]fullerene cavity.
More Related Videos
08:18Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
Published on: March 4, 2021
11:45Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
Published on: August 22, 2018
Related Concept Videos
Hybridization of Atomic Orbitals II
Aromatic Hydrocarbon Cations: Structural Overview
Removing one hydrogen from the intervening CH2 group...
π Molecular Orbitals of 1,3-Butadiene
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
Five-Membered Heterocyclic Aromatic Compounds: Overview
Aromatic Hydrocarbon Anions: Structural Overview
Due to the absence of continuous...
Hybridization of Atomic Orbitals I
