Direct structural identification of carbenium ions and investigation of host-guest interaction in the methanol to olefins reaction obtained by multinuclear NMR correlations

Xiao, Dong, Xu, Shutao, Han, Xiuwen, Bao, Xinhe, Liu, Zhongmin and Blanc, Frederic ORCID: 0000-0001-9171-1454 (2017) Direct structural identification of carbenium ions and investigation of host-guest interaction in the methanol to olefins reaction obtained by multinuclear NMR correlations. CHEMICAL SCIENCE, 8 (12). pp. 8309-8314.

Text finalpublishedversion.pdf - Published version Download (657kB)

Abstract

Probing and determining the intermediates formed during catalytic reactions in heterogeneous catalysis are strong challenges. Using ¹³C labelling and two dimensional ¹³C-¹³C through-bond NMR correlations, we directly reveal the structures of a range of carbenium ion species formed during the conversion of methanol to olefins on acidic H-ZSM-5 zeolite by mapping the carbon-carbon bond connectivities. Additionally, we use ¹³C-²⁷Al and ²⁹Si-¹³C through-space NMR experiments to probe the interactions between the confined carbon species (including carbenium ions) and the framework of the zeolite, which quantitatively provide an estimate for the carbon-aluminium and carbon-silicon distances, respectively.

Item Type:	Article
Additional Information:	similarity_check: This document is Similarity Check deposited related_data: Supplementary Information identifier: Dong Xiao (ORCID) identifier: Xinhe Bao (ORCID) identifier: Frédéric Blanc (ORCID) copyright_licence: The Royal Society of Chemistry has an exclusive publication licence for this journal copyright_licence: This article is freely available. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence (CC BY 3.0) peer_review_method: Single-blind history: Received 21 August 2017; Accepted 7 October 2017; Accepted Manuscript published 10 October 2017; Advance Article published 24 October 2017
Depositing User:	Symplectic Admin
Date Deposited:	30 Nov 2017 07:31
Last Modified:	07 Feb 2024 02:05
DOI:	10.1039/c7sc03657d
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3013157