Response to Comment on “Following Molecular Mobility during Chemical Reactions: No Evidence for Active Propulsion” and “Molecular Diffusivity of Click Reaction Components: The Diffusion Enhancement Question”
Response to Comment on “Following Molecular Mobility during Chemical Reactions: No Evidence for Active Propulsion” and “Molecular Diffusivity of Click Reaction Components: The Diffusion Enhancement Question”
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对“化学反应过程中分子迁移率的跟踪:没有主动推进的证据”和“点击反应成分的分子扩散性:扩散增强问题”的评论的回应
DOI:
10.1021/jacs.2c02830
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发表时间:
2022
影响因子:
15
通讯作者:
Beves, Jonathon E.
中科院分区:
文献类型:
--
作者:
Fillbrook, Lucy L.;Günther, Jan-Philipp;Majer, Günter;O’Leary, Daniel J.;Price, William S.;Van Ryswyk, Hal;Fischer, Peer;Beves, Jonathon E.
In their Comment (DOI: 10.1021/jacs.2c02965) on two related publications by our groups (J. Am. Chem. Soc.2021,143, 20884–20890; DOI: 10.1021/jacs.1c09455) and another (J. Am. Chem. Soc.2022,144, 1380–1388; DOI: 10.1021/jacs.1c11754), Huang and Granick discuss the diffusion NMR measurements of molecules during a copper-catalyzed azide–alkyne cycloaddition (CuAAC) “click” reaction. Here we respond to these comments and maintain that no diffusion enhancement was observed for any species during the reaction. We show that the relaxation agent does not interfere with the CuAAC reaction kinetics nor the diffusion of the molecules involved. Similarly, the gradient pulse length and diffusion time do not affect the diffusion coefficients. Peak overlap was completely removed in our study with the use of hydrazine as the reducing agent. The steady-state assumption does not hold for these diffusion measurements that take several minutes, which is the reason monotonic gradient orders are not suitable. Finally, we discuss the other reactions where similar changes in diffusion have been claimed. Our conclusions are fully supported by the results represented in our originalJACSArticle and the corresponding Supporting Information.
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影响因子:
15
作者:
L. Emsley
通讯作者:
L. Emsley
DOI:
10.1101/2021.07.20.452795
发表时间:
2021
期刊:
bioRxiv
影响因子:
--
作者:
Alexander A Choi;Ha H. Park;Kun Chen;Rui Yan;Wan Li;Ke Xu
通讯作者:
Ke Xu
影响因子:
--
作者:
Thomas Macdonald;William S. Price;R. Astumian;Jonathon E. Beves
通讯作者:
Jonathon E. Beves
影响因子:
8.6
作者:
Agudo-Canalejo, Jaime;Adeleke-Larodo, Tunrayo;Golestanian, Ramin
通讯作者:
Golestanian, Ramin
影响因子:
15
作者:
Muddana, Hari S.;Sengupta, Samudra;Mallouk, Thomas E.;Sen, Ayusman;Butler, Peter J.
通讯作者:
Butler, Peter J.