Distance-Selected Topochemical Dehydro-Diels-Alder Reaction of 1,4-Diphenylbutadiyne toward Crystalline Graphitic Nanoribbons

Peijie Zhang, Xingyu Tang, Yida Wang, Xuan Wang, Dexiang Gao, Yapei Li, Haiyan Zheng, Yajie Wang, Xinxin Wang, Riqiang Fu, Mingxue Tang, Kazutaka Ikeda, Ping Miao, Takanori Hattori, Asami Sano-Furukawa, Christopher A. Tulk, Jamie J. Molaison, Xiao Dong, Kuo Li, Jing JuHo Kwang Mao

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Solid-state topochemical polymerization (SSTP) is a promising method to construct functional crystalline polymeric materials, but in contrast to various reactions that happen in solution, only very limited types of SSTP reactions are reported. Diels-Alder (DA) and dehydro-DA (DDA) reactions are textbook reactions for preparing six-membered rings in solution but are scarcely seen in solid-state synthesis. Here, using multiple cutting-edge techniques, we demonstrate that the solid 1,4-diphenylbutadiyne (DPB) undergoes a DDA reaction under 10-20 GPa with the phenyl as the dienophile. The crystal structure at the critical pressure shows that this reaction is "distance-selected". The distance of 3.2 Å between the phenyl and the phenylethynyl facilitates the DDA reaction, while the distances for other DDA and 1,4-addition reactions are too large to allow the bonding. The obtained products are crystalline armchair graphitic nanoribbons, and hence our studies open a new route to construct the crystalline carbon materials with atomic-scale control.

Original languageEnglish
Pages (from-to)17662-17669
Number of pages8
JournalJournal of the American Chemical Society
Volume142
Issue number41
DOIs
StatePublished - Oct 14 2020

Funding

The authors acknowledge the support of the National Natural Science Foundation of China (NSFC) (Grant nos. 21771011 and 21875006). The authors also acknowledge the support of the National Key Research and Development Program of China (2019YFA0708502). This research used resources of the Advanced Light Source, which is a U.S. Department of Energy (DOE) Office of Science User Facility under Contract no. DE-AC02-05CH11231. This research used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. Neutron diffraction experiments at J-PARC were performed through the J-PARC user programs (nos. 2018B0249 and 2018BF2106). High-resolution solid-state C NMR were measured at National High Magnetic Field Laboratory supported by the U.S. NSF Cooperative Agreement DMR-1644779 and the State of Florida. The calculations were performed on the TianheII supercomputer at the Chinese National Supercomputer Center in Guangzhou. The authors thank Dr. Haijun Yang for his help in the synthesis of deuterated DPB, Dr. Xiaohuan Lin for her help in the analysis of XRD data, Dr. Xiaoge Wang and Ms. Yunling Jia for their help in the HRTEM experiments, and Dr. Hyun Hwi Lee for his help in the in situ XRD measurements performed in the 5A XRS-MS beamline at the Pohang Accelerator Laboratory (PAL). Dr. K. Li thanks Dr. T. A. Strobel for helpful discussion. 13

FundersFunder number
State of Florida
National Science FoundationDMR-1644779
National Science Foundation
U.S. Department of Energy
Office of ScienceDE-AC02-05CH11231
Office of Science
National Natural Science Foundation of China21875006, 21771011
National Natural Science Foundation of China
National Key Research and Development Program of China2019YFA0708502
National Key Research and Development Program of China

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