Ikemoto K, Harada S, Yang S, Matsuno T, Isobe H. A Defective Nanotube Molecule of C
552 H
496 N
24 with Pyridinic and Pyrrolic Nitrogen Atoms.
Angew Chem Int Ed Engl 2022;
61:e202114305. [PMID:
34727413 DOI:
10.1002/anie.202114305]
[Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Indexed: 01/05/2023]
Abstract
A 3-nm molecule comprising a cylindrical core and cross-shaped rims was designed and synthesized by developing a modular synthetic route. By using a cyclic precursor from previous studies as a starting material, multiple carbazole units were installed at the rims of the defective cylinder. The defective cylinder was synthetically doped with two types of nitrogen atoms, that is, pyridinic and pyrrolic nitrogen atoms, which resulted in solvatochromic shifts in fluorescence by charge-transfer interactions. The structure of the large, C552 H496 N24 molecule was fully disclosed by crystallographic analyses, and the unique helical arrangement of nitrogen-doped cylinders in the crystal was revealed.
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