Synthesis and chiral resolution of a triply twisted Möbius carbon nanobelt

Fan, Wei; Fukunaga, T.; Wu, Shaofei; Han, Yi; Zhou, Qifeng; Wang, Jinyi; Li, Zhengtao; Hou, Xudong; Wei, Haipeng; Ni, Yong; Isobe, Hiroyuki; Wu, Jishan

doi:10.1038/s44160-023-00317-3

Cited by 38 publications

(14 citation statements)

References 39 publications

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“…Armed with this facile method to fully conjugated molecular carbons, in 2023, Wu and Isobe’s teams constructed a triply twisted Möbius carbon nanobelt (MCNB) 120 through three steps from the key building blocks (Figure g). The fully π-conjugated structure and D 3 symmetry of the MCNB induced a desirable orientation of the electric and magnetic transition moments, thus, realizing a larger dissymmetry factor and higher circularly polarized luminescence (CPL) brightness of B CPL = 106 M –1 cm –1 . These synthetic strategies will promote the synthesis of diverse topological molecular carbons with persistent chirality as well as promising applications in CPL-active carbon nanomaterials in the future.…”

Section: Carbon Nanotube and Its Segmentsmentioning

confidence: 98%

“…The fully πconjugated structure and D 3 symmetry of the MCNB induced a desirable orientation of the electric and magnetic transition moments, thus, realizing a larger dissymmetry factor and higher circularly polarized luminescence (CPL) brightness of B CPL = 106 M −1 cm −1 . 144 These synthetic strategies will promote the synthesis of diverse topological molecular carbons with persistent chirality as well as promising applications in CPL-active carbon nanomaterials in the future.…”

Section: Carbon Nanotube and Its Segmentsmentioning

confidence: 99%

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Molecular Carbons: How Far Can We Go?

Wang,

Fan,

et al. 2023

ACS Nano

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The creation and development of carbon nanomaterials promoted material science significantly. Bottom-up synthesis has emerged as an efficient strategy to synthesize atomically precise carbon nanomaterials, namely, molecular carbons, with various sizes and topologies. Different from the properties of the feasibly obtained mixture of carbon nanomaterials, numerous properties of single-component molecular carbons have been discovered owing to their well-defined structures as well as potential applications in various fields. This Perspective introduces recent advances in molecular carbons derived from fullerene, graphene, carbon nanotube, carbyne, graphyne, and Schwarzite carbon acquired with different synthesis strategies. By selecting a variety of representative examples, we elaborate on the relationship between molecular carbons and carbon nanomaterials. We hope these multiple points of view presented may facilitate further advancement in this field.

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Section: Carbon Nanotube and Its Segmentsmentioning

confidence: 98%

Section: Carbon Nanotube and Its Segmentsmentioning

confidence: 99%

Molecular Carbons: How Far Can We Go?

Wang,

Fan,

et al. 2023

ACS Nano

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“…Because of the structural integrity of each CNB sidewall structure (armchair, zigzag, and chiral), the structure-dependent properties were deeply investigated. Furthermore, related aromatic nanobelts and topological nanobelts, such as CNBs with the Mobius twist; 58 triply twisted CNB; 59 and infinitene, 60 an infinity-shaped polyarene comprised of 12 benzene rings, have also been synthesized in recent years.…”

Section: ■ Recent History Of Carbon Nanobeltsmentioning

confidence: 99%

“…It was revealed that the bowl-shaped CNB has unique structure-derived properties, such as the encapsulation of C 60 . In 2023, Wu and co-workers also synthesized a triply twisted Möbius CNB with three intramolecular twists by Suzuki coupling-mediated macrocyclization, Bi(OTf) 3 -catalyzed cyclization of vinyl ethers, and oxidative dehydrogenation . The separated enantiomers exhibited a large absorption dissymmetry factor (| g abs | = 0.019) caused by the fully conjugated structure and the arrangement of the electric and magnetic transition moments.…”

Section: Synthesis Of Cnbs and Related Aromatic Beltsmentioning

confidence: 99%

Carbon Nanobelts: Brief History and Perspective

Imoto,

Yagi,

Itami

2023

Precision Chemistry

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Carbon nanotubes (CNTs) are an emerging nanomaterial because of their outstanding performance in various applications. In recent years, the segment molecules of CNTs, referred to as carbon nanorings (CNRs) or carbon nanobelts (CNBs), have gained attention for their unique structures and properties, as well as their potential as seed molecules for the precise synthesis of CNTs. CNBs are rigid and thick segments of CNTs whose synthesis has been addressed by scientists fascinated by the uniqueness of CNBs long before the discovery of CNTs. After 60 years of efforts by synthetic chemists all over the world, the synthesis of the first CNB, (6,6)CNB, was achieved by our group in 2017. Since this milestone, diverse types of nanobelts have been synthesized through various synthetic routes, thereby demonstrating their photophysical, magnetic, and redox properties derived from rigid belt structures. The applications of CNBs have also been introduced recently. The formation of the host–guest complex, transformation to three-dimensional molecules, and measurement of conductivity have been reported for CNBs. This paper summarizes the brief history and perspective of CNBs. Further synthetic campaigns and aggressive application of CNBs would create novel and groundbreaking scenes in materials science.

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“…Curved π-conjugated molecules have unique molecular architectures, which confer an interesting combination of synthetic challenges, properties, applications, and aesthetic appeal. 1–4 The redox, optical, self-assembly, and charge-transport properties of these curved aromatic molecules can be significantly modulated compared with their non-planar counterparts, as evidenced by various curved carbon allotropes, such as carbon nanotubes, 5 nanobelts, 6–9 nanobowls, 10–13 and nanorings. 14–16 Among these allotropes, cycloparaphenylenes (CPPs), often referred to as carbon nanorings/nanohoops, have been initially envisioned as the simplest building blocks for the size-selective growth of armchair carbon nanotubes.…”

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confidence: 99%