研究目的
To report a new family of giant star-shaped N-doped nanographenes with diameters up to 6.5 nm and characterize their structural, optoelectronic, and electrochemical properties.
研究成果
The high molar absorptivity, low LUMO energies and φΣμ values illustrate the n-type semiconducting character and their potential in charge transport and energy conversion applications.
研究不足
The synthesis of extended SNGs is still a challenging task that requires dealing with insoluble intermediates and products, which overall makes synthesis, purification, characterisation and processing difficult.
1：Experimental Design and Method Selection:
The synthesis involved a careful design and synthesis of a C3-symmetrical precursor from which the SNG core is then extended radially.
2：Sample Selection and Data Sources:
The synthesis was achieved using a key C3-symmetrical precursor (SNG-G0), from which the aromatic core was extended radially.
3：List of Experimental Equipment and Materials:
The synthesis required the use of cyclohexane-1,2,3,4,5,6-hexaone (HKT) and 1,2,3,4,5,6-hexaaminobenzene (HAB) as starting materials.
4：Experimental Procedures and Operational Workflow:
The synthesis involved cyclocondensation reactions followed by deprotection steps to yield the desired SNGs.
5：Data Analysis Methods:
The SNGs were characterized by 1H-NMR, 13C-NMR, MALDI-TOF HRMS, UV-vis, photoluminescence, cyclic voltammetry, and TRMC.
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