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Influence of zeolite confinement effects on cation-π interactions in methanol-to-hydrocarbon conversion

Chemical Communications, ISSN: 1364-548X, Vol: 58, Issue: 66, Page: 9242-9245
2022
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Article Description

By using 2D C-C correlation MAS NMR spectroscopy and DFT calculations, the nature of cation-π interactions between cyclopentenyl cations and benzene was clarified over H-ZSM-5, H-β and H-SSZ-13 zeolites. The cation-π interactions are favored over H-β and H-SSZ-13 with large channels or cages. The zeolite structure is identified to affect the arrangements of cyclopentenyl cations and benzene in the confined environment, leading to different extents of overlapping of positive-negative charge centers and cation-π interaction strength. The stronger cation-π interactions facilitate the bimolecular reactions between cyclopentenyl cations and benzene and the formation of coke species.

Bibliographic Details

Wang, Chao; Chu, Yueying; Hu, Min; Cai, Wenjin; Wang, Qiang; Li, Shenhui; Xu, Jun; Deng, Feng

Royal Society of Chemistry (RSC)

Materials Science; Chemical Engineering; Chemistry

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