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Zhang XH, Wu X, Shi HX. Mechanistic investigation on rhodium(III)-catalyzed cycloaddition of 2-vinylphenol derivatives with ethyne or carbon monoxide by DFT study. CHINESE J CHEM PHYS 2022. [DOI: 10.1063/1674-0068/cjcp2009172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Rhodium-catalyzed cycloaddition reaction was calculated by density functional theory M06-2X method to directly synthesize benzoxepine and coumarin derivatives. In this work, we conducted a computational study of two competitive mechanisms in which the carbon atom of acetylene or carbon monoxide attacked and inserted from two different directions of the six-membered ring reactant to clarify the principle characteristics of this transformation. The calculation results reveal that: (i) the insertion process of alkyne or carbon monoxide is the key step of the reaction; (ii) for the (5+2) cycloaddition reaction of acetylene, higher energy is required to break the Rh−O bond of the reactant, and the reaction tends to complete the insertion from the side of the Rh−C bond; (iii) for the (5+1) cycloaddition of carbon monoxide, both reaction paths have lower activation free energy, and the two will generate a competition mechanism.
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Affiliation(s)
- Xing-hui Zhang
- College of Chemical Engineering, Lanzhou University of Arts and Science, Lanzhou 730010, China
| | - Xi Wu
- School of Foreign Languages, Lanzhou University of Arts and Science, Lanzhou 730010, China
| | - Hai-xiong Shi
- College of Chemical Engineering, Lanzhou University of Arts and Science, Lanzhou 730010, China
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Li W, Jin J, Wu X, Ding X, Wang G. Infrared photodissociation spectroscopic and theoretical study of H nC 4O + ( n = 1, 2) cation clusters in the gas phase. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1879301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Wei Li
- School of Mathematics and Physics, North China Electric Power University, Beijing, People’s Republic of China
- Institute of clusters and low dimensional nanomaterials, North China Electric Power University, Beijing, People’s Republic of China
| | - Jiaye Jin
- Department of Chemistry, Fudan University, Shanghai, People’s Republic of China
| | - Xiaonan Wu
- Department of Chemistry, Fudan University, Shanghai, People’s Republic of China
| | - Xunlei Ding
- School of Mathematics and Physics, North China Electric Power University, Beijing, People’s Republic of China
- Institute of clusters and low dimensional nanomaterials, North China Electric Power University, Beijing, People’s Republic of China
| | - Guanjun Wang
- Department of Chemistry, Fudan University, Shanghai, People’s Republic of China
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Thorwirth S, Harding ME, Asvany O, Brünken S, Jusko P, Lee KLK, Salomon T, McCarthy MC, Schlemmer S. Descendant of the X-ogen carrier and a ‘mass of 69’: infrared action spectroscopic detection of HC3O+ and HC3S+. Mol Phys 2020. [DOI: 10.1080/00268976.2020.1776409] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sven Thorwirth
- I. Physikalisches Institut, Universität zu Köln, Köln, Germany
| | - Michael E. Harding
- Institut für Physikalische Chemie, Abteilung für Theoretische Chemie, Karlsruher Institut für Technologie (KIT), Karlsruhe, Germany
| | - Oskar Asvany
- I. Physikalisches Institut, Universität zu Köln, Köln, Germany
| | - Sandra Brünken
- Institute for Molecules and Materials, FELIX Laboratory, Radboud University, Nijmegen, The Netherlands
| | - Pavol Jusko
- I. Physikalisches Institut, Universität zu Köln, Köln, Germany
| | | | - Thomas Salomon
- I. Physikalisches Institut, Universität zu Köln, Köln, Germany
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