Full
Outline
A rhombohedral two-dimensional (2D-Rh) C60 polymer has been successfully synthesized by cubic press methods under the conditions of 6 GPa and 700 ℃. X-ray diffraction (XRD) and nuclear magenatic resonance (NMR) were performed to characterize the samples. XRD spectrum indicates that the C60 polymer is rhombohedral, and sp3 bonds have formed between adjacent fullerene molecules via [2+2] cycloaddition reaction. 13C MAS NMR spectrum shows a broadened peak at δ145, which has two sidebands, and one small peak at about δ72. The broadening of the peak at δ145 could be related to the presence of inequivalent sp2 sites and structure disorder. The sidebands of the peak at δ145 show the large structure anisotropy of the corresponding carbons. The peak at δ72 indicates the presence sp3 bond of adjacent C60 molecules.
24
3
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
