On-surface synthesis of aromatic cyclo [10] carbon and cyclo [14] carbon

L Sun, W Zheng, W Gao, F Kang, M Zhao, W Xu - Nature, 2023 - nature.com
All-carbon materials based on sp 2-hybridized atoms, such as fullerenes, carbon nanotubes
and graphene, have been much explored due to their remarkable physicochemical …

Electronic Structure and Aromaticity of an Unusual Cyclo[18]carbon Precursor, C18Br6**

X Wang, Z Liu, J Wang, T Lu, W Xiong… - … A European Journal, 2023 - Wiley Online Library
Herein, the electronic structure and bonding character of the stable cyclo [18] carbon (C18)
precursor, C18Br6, are thoroughly characterized by molecular orbital (MO), density of states …

Bonding Character, Electron Delocalization, and Aromaticity of Cyclo[18]Carbon (C18) Precursors, C18‐(CO)n (n=6, 4, and 2): Focusing on the Effect of Carbonyl …

X Wang, Z Liu, X Yan, T Lu, W Zheng… - … –A European Journal, 2022 - Wiley Online Library
The bonding character, electron delocalization, and aromaticity of the cyclo [18] carbon
(C18) precursors, C18‐(CO) n (n= 6, 4, and 2), have been studied by combining quantum …

Remarkable Size Effect on Photophysical and Nonlinear Optical Properties of All‐Carboatomic Rings, Cyclo [18] carbon and Its Analogues

Z Liu, T Lu, A Yuan, X Wang, Q Chen… - Chemistry–An Asian …, 2021 - Wiley Online Library
Inspired by recent experimental observation of molecular morphology and theoretical
predictions of multiple properties of cyclo [18] carbon, we systematically studied the …

Cyclo [18] carbon as an ultra-elastic molecular O-ring with unique mechanical properties

S Fang, YH Hu - Carbon, 2021 - Elsevier
Recent atomic manipulation by an AFM tip created the first sp-hybridized carbon material–
cyclo [18] carbon. Herein, we revealed the unique mechanical properties of cyclo [18] …

Aromaticity of Even-Number Cyclo[n]carbons (n = 6–100)

GV Baryshnikov, RR Valiev, RT Nasibullin… - The Journal of …, 2020 - ACS Publications
The recently synthesized cyclo [18] carbon molecule has been characterized in a number of
studies by calculating electronic, spectroscopic, and mechanical properties. However, cyclo …

A short history of cyclocarbons

HL Anderson, CW Patrick, LM Scriven… - Bulletin of the …, 2021 - academic.oup.com
The cyclocarbons constitute a family of molecular carbon allotropes consisting of rings of two-
coordinate atoms. Their high reactivities make them difficult to study, but there has been …

Odd-Number Cyclo[n]Carbons Sustaining Alternating Aromaticity

GV Baryshnikov, RR Valiev, LI Valiulina… - The Journal of …, 2022 - ACS Publications
Cyclo [n] carbons (n= 5, 7, 9,..., 29) composed from an odd number of carbon atoms are
studied computationally at density functional theory (DFT) and ab initio complete active …

Cyclo[18]carbon Formation from C18Br6 and C18(CO)6 Precursors

R Suresh, GV Baryshnikov, AV Kuklin… - The Journal of …, 2022 - ACS Publications
Although cyclo [18] carbon has been isolated experimentally from two precursors, C18Br6
and C18 (CO) 6, no reaction mechanisms have yet been explored. Herein, we provide …

Stability of the polyynic form of C 18, C 22, C 26, and C 30 nanorings: a challenge tackled by range-separated double-hybrid density functionals

E Brémond, AJ Pérez-Jiménez, C Adamo… - Physical Chemistry …, 2022 - pubs.rsc.org
We calculate the relative energy between the cumulene and polyyne structures of a set of
C4k+ 2 (k= 4–7) rings (C18, C22, C26, and C30 prompted by the recent synthesis of the …