C156 分子纳米碳：平面/波纹纳米片杂交

IF 16.1 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Angewandte Chemie International Edition Pub Date : 2024-11-21 DOI:10.1002/anie.202420419

Ruihua Fu, Xingyu Chen, Fei Qiu, Xinyue Liu, Jianlong Xia, Lei Zhang

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引用次数: 0

摘要

我们合成并鉴定了一种新型杂化纳米碳，它由一个波纹和两个平面纳米片组成。沿着杂化物的分子长轴形成了两对中位[5]螺旋烯，将波纹亚基和平面亚基连接起来，从而形成了稳定的构象。研究表明，混合物具有波纹亚基和平面亚基各自的电子特性。与波纹亚基相比，这种混合物与 C60 的几何匹配度更高，能以 1:1 的化学计量与 C60 复合，结合常数约为 105 M-1。这种混合物显示出不寻常的反卡沙荧光发射。瞬态吸收光谱显示，在这种杂化物的薄膜中，高电平单线激发态（Sn）发生了单线裂变（SF）。

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A C156 Molecular Nanocarbon: Planar/Rippled Nanosheets Hybridization

A novel hybrid nanocarbon consisting of one rippled and two planar nanosheets has been synthesized and characterized. Two meso pairs of [5]helicenes are formed along the long molecular axis of the hybrid to connect rippled and planar subunits, leading to a stable conformation. It is shown that the hybrid possesses the individual electronic properties of the rippled and planar subunits. Compared to the rippled subunit, such hybrid has a better geometric match to C60 and complexes with C60 in a 1:1 stoichiometry, with the association constant on the order of 105 M-1. The hybrid displays unusual anti-Kasha fluorescence emission. The transient absorption spectroscopy revealed that the singlet fission (SF) from higher level singlet excited states (Sn) is operative in the film of the hybrid.

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来源期刊

Angewandte Chemie International Edition 化学-化学综合

CiteScore

26.60

自引率

6.60%

发文量

3549

审稿时长

1.5 months

期刊介绍： Angewandte Chemie, a journal of the German Chemical Society (GDCh), maintains a leading position among scholarly journals in general chemistry with an impressive Impact Factor of 16.6 (2022 Journal Citation Reports, Clarivate, 2023). Published weekly in a reader-friendly format, it features new articles almost every day. Established in 1887, Angewandte Chemie is a prominent chemistry journal, offering a dynamic blend of Review-type articles, Highlights, Communications, and Research Articles on a weekly basis, making it unique in the field.