期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 48, 页码 19416-19421出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja206242v
关键词
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资金
- NSF [CHE-1056657, CHE-0847926, CHE-0936988, DGE-0903653, DGE-0654193]
- National Science Foundation
- National Institutes of Health/National Institute of General Medical Sciences under NSF [DMR-0936384]
- NSF Materials Research Science and Engineering Centers (MRSEC) [DMR-0520404]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1120296] Funding Source: National Science Foundation
Two-dimensional layered covalent organic frameworks (2D COFs) organize g-electron systems into ordered structures ideal for exciton and charge transport and exhibit permanent porosity available for subsequent fiinctionalization. A 2D COF with the largest pores reported to date was synthesized by condensing 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) and 4,4'-diphenylbutadiynebis(boronic acid) (DPB). The COF was prepared as both a high surface area microcrystalline powder as well as a vertically oriented thin film on a transparent single-layer graphene/fused silica substrate. Complementary molecular dynamics and density functional theory calculations provide insight into the interlayer spacing of the COF and suggest that adjacent layers are horizontally offset by 1.7-1.8 angstrom, in contrast to the eclipsed AA stacking typically proposed for these materials.
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