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Yang Y, Shen Q, Zhang C, Rowell N, Zhang M, Chen X, Luan C, Yu K. Direct and Indirect Pathways of CdTeSe Magic-Size Cluster Isomerization Induced by Surface Ligands at Room Temperature. ACS CENTRAL SCIENCE 2023; 9:519-530. [PMID: 36968545 PMCID: PMC10037450 DOI: 10.1021/acscentsci.2c01394] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Indexed: 06/18/2023]
Abstract
The field of isomerization reactions for colloidal semiconductor magic-size clusters (MSCs) remains largely unexplored. Here, we show that MSCs isomerize via two fundamental pathways that are regulated by the acidity and amount of an incoming ligand, with CdTeSe as the model system. When MSC-399 isomerizes to MSC-422 at room temperature, the peak red-shift from 399 to 422 nm is continuous (pathway 1) and/or stepwise (pathway 2) as monitored in situ and in real time by optical absorption spectroscopy. We propose that pathway 1 is direct, with intracluster configuration changes and a relatively large energy barrier. Pathway 2 is indirect, assisted by the MSC precursor compounds (PCs), from MSC-399 to PC-399 to PC-422 to MSC-422. Pathway 1 is activated when PC-422 to MSC-422 is suppressed. Our findings unambiguously suggest that when a change occurs directly on a nanospecies, its absorption peak continuously shifts. The present study provides an in-depth understanding of the transformative behavior of MSCs via ligand-induced isomerization upon external chemical stimuli.
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Affiliation(s)
- Yusha Yang
- Engineering
Research Center in Biomaterials, Sichuan
University, Chengdu, Sichuan 610065, P. R. China
| | - Qiu Shen
- Engineering
Research Center in Biomaterials, Sichuan
University, Chengdu, Sichuan 610065, P. R. China
| | - Chunchun Zhang
- Analytical
& Testing Center, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Nelson Rowell
- Metrology
Research Centre, National Research Council
Canada, Ottawa, Ontario K1A 0R6, Canada
| | - Meng Zhang
- Institute
of Atomic and Molecular Physics, Sichuan
University, Chengdu, Sichuan 610065, P. R. China
| | - Xiaoqin Chen
- Engineering
Research Center in Biomaterials, Sichuan
University, Chengdu, Sichuan 610065, P. R. China
| | - Chaoran Luan
- Laboratory
of Ethnopharmacology, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610065, P. R. China
| | - Kui Yu
- Engineering
Research Center in Biomaterials, Sichuan
University, Chengdu, Sichuan 610065, P. R. China
- Institute
of Atomic and Molecular Physics, Sichuan
University, Chengdu, Sichuan 610065, P. R. China
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Trofimov BA, Belyaeva KV. Zwitterionic adducts of N-heterocycles to electrophilic acetylenes as a master key to diversity and complexity of fundamental nitrogen heterocycles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Bai H, Zhang H, Guo Y, Chen H, Wei D, Li S, Zhu Y, Zhang W. Understanding theZselectivity of the metal-free intermolecular aminoarylation of alkynes: a DFT study. Org Chem Front 2019. [DOI: 10.1039/c8qo01093e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The unusualZselectivity of the title reaction is revealed to be determined by the inherent requirements of dynamic preference of pathways that promise theZ-geometry product, rather than the isomerization of theE-productin situ.
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Affiliation(s)
- Huining Bai
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Huimin Zhang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Yuen Guo
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Hui Chen
- Institute of Chemistry, Henan Academy of Sciences
- Zhengzhou 450002
- P.R. China
| | - Donghui Wei
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Shijun Li
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Yanyan Zhu
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Wenjing Zhang
- College of Chemistry and Molecular Engineering
- Zhengzhou University
- Zhengzhou
- P. R. China
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Abu-Saleh AAAA, Almatarneh MH, Poirier RA. Bimolecular reactions of carbenes: Proton transfer mechanism. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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5
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Probing the Origin of Challenge of Realizing Metallaphosphabenzenes: Unfavorable 1,2-Migration in Metallapyridines Becomes Feasible in Metallaphosphabenzenes. Sci Rep 2016; 6:28543. [PMID: 27340012 PMCID: PMC4919789 DOI: 10.1038/srep28543] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 06/03/2016] [Indexed: 11/08/2022] Open
Abstract
Metallabenzenes have attracted considerable interest of both theoretical and experimental chemists. However, metallaphosphabenzene has never been synthesized. Thus, understanding the origin of the challenge of synthesizing metallaphosphabenzene is particularly urgent for experimentalists. Now density functional theory (DFT) calculations have been carried out to examine this issue. Our results reveal that the 1,2-migration in metallapyridines is unfavorable whereas such a 1,2-migration in metallaphosphabenzenes is feasible, which can be rationalized by the reluctance of phosphorus to participate in π bonding. In addition, π-donor ligands and the 5d transition metals can stabilize metallaphosphabenzenes. Compared with hydride and methyl migration, the chloride migration has a relatively lower activation barrier due to the polarization of the M=P bond. CO ligand could further decrease the reaction barrier of the migration due to the reduction of the interaction between the metal centre and the phosphorus atom. All of these findings could help synthetic chemists to realize the first metallaphosphabenzene.
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Li Y, Li F, Zhu Y, Li X, Zhou Z, Liu C, Zhang W, Tang M. DFT study on reaction mechanisms of cyclic dipeptide generation. Struct Chem 2016. [DOI: 10.1007/s11224-016-0740-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Azad CS, Khan IA, Narula AK. Organocatalyzed asymmetric Michael addition by an efficient bifunctional carbohydrate–thiourea hybrid with mechanistic DFT analysis. Org Biomol Chem 2016; 14:11454-11461. [DOI: 10.1039/c6ob02158a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of thiourea based bifunctional organocatalysts having d-glucose as a core scaffold were synthesized and examined as catalysts for the asymmetric Michael addition reaction of aryl/alkyl trans-β-nitrostyrenes over cyclohexanone and other Michael donors having active methylene.
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Affiliation(s)
- Chandra S. Azad
- “Hygeia” Centre of Excellence in Pharmaceutical Sciences (CEPS)
- GGS Indraprastha University
- New Delhi
- India
| | - Imran A. Khan
- Department of Chemistry
- Guru Nanak Dev University
- Amritsar
- India
| | - Anudeep K. Narula
- “Hygeia” Centre of Excellence in Pharmaceutical Sciences (CEPS)
- GGS Indraprastha University
- New Delhi
- India
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Zhang M, Wei D, Wang Y, Li S, Liu J, Zhu Y, Tang M. DFT study on the reaction mechanisms and stereoselectivities of NHC-catalyzed [2 + 2] cycloaddition between arylalkylketenes and electron-deficient benzaldehydes. Org Biomol Chem 2015; 12:6374-83. [PMID: 24940721 DOI: 10.1039/c4ob00606b] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, two possible mechanisms (mechanisms A and B) on the stereoselective [2 + 2] cycloaddition of aryl(alkyl)ketenes and electron-deficient benzaldehydes catalyzed by N-heterocyclic carbenes (NHCs) have been investigated using density functional theory (DFT). Our calculated results indicate that the favorable mechanism (mechanism A) includes three processes: the first step is the nucleophilic attack on the arylalkylketene by the NHC catalyst to form an intermediate, the second step is the [2 + 2] cycloaddition of the intermediate and benzaldehyde for the formation of a β-lactone, and the last step is the dissociation of the NHC catalyst and the β-lactone. Notably, the [2 + 2] cycloaddition, in which two chiral centers associated with four configurations (SS, RR, SR and RS) are formed, is demonstrated to be both the rate- and stereoselectivity-determining step. Moreover, the reaction pathway associated with the SR configuration is the most favorable pathway and leads to the main product, which is in good agreement with the experimental results. Furthermore, the analysis of global and local reactivity indexes has been performed to explain the role of the NHC catalyst in the [2 + 2] cycloaddition reaction. Therefore, this study will be of great use for the rational design of more efficient catalysts for this kind of cycloaddition.
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Affiliation(s)
- Mengmeng Zhang
- The College of Chemistry and Molecular Engineering, Center of Computational Chemistry, Zhengzhou University, Zhengzhou, Henan Province 450001, P.R. China.
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Wang Y, Wang Y, Zhang W, Zhu Y, Wei D, Tang M. Mechanisms and stereoselectivities of the Rh(i)-catalyzed carbenoid carbon insertion reaction of benzocyclobutenol with diazoester. Org Biomol Chem 2015; 13:6587-97. [DOI: 10.1039/c5ob00608b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Mechanisms and stereoselectivities of a Rh(i)-catalyzed carbenoid carbon insertion reaction of benzocyclobutenol with diazoester have been investigated using the DFT method.
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Affiliation(s)
- Yanyan Wang
- College of Chemistry and Molecular Engineering
- Center of Computational Chemistry
- Zhengzhou University
- Zhengzhou
- PR China
| | - Yang Wang
- College of Chemistry and Molecular Engineering
- Center of Computational Chemistry
- Zhengzhou University
- Zhengzhou
- PR China
| | - Wenjing Zhang
- College of Chemistry and Molecular Engineering
- Center of Computational Chemistry
- Zhengzhou University
- Zhengzhou
- PR China
| | - Yanyan Zhu
- College of Chemistry and Molecular Engineering
- Center of Computational Chemistry
- Zhengzhou University
- Zhengzhou
- PR China
| | - Donghui Wei
- College of Chemistry and Molecular Engineering
- Center of Computational Chemistry
- Zhengzhou University
- Zhengzhou
- PR China
| | - Mingsheng Tang
- College of Chemistry and Molecular Engineering
- Center of Computational Chemistry
- Zhengzhou University
- Zhengzhou
- PR China
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Mechanistic insights into the stereoselective C2-functionalization of 1-substituted imidazoles with cyanophenylacetylene and aldehydes. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.09.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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11
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Wang Y, Wei D, Zhu Y, Liu P, Tang M. A DFT study on the reaction mechanisms of isocyanide-based multicomponent synthesis of polysubstituted cyclopentenes. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.06.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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A DFT study on the mechanisms of three-component reaction between imidazoles, isocyanates and cyanophenylacetylene. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.05.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Zhu Y, Li Y, Zhang W, Zhao Q, Tang M. DFT study on reaction mechanisms of propylamine and dimethyl acetylenedicarboxylate with 1,3-dimethylalloxan. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2012.10.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Influence of reaction conditions on product distribution in the green oxidation of cyclohexene to adipic acid with hydrogen peroxide. Catal Today 2011. [DOI: 10.1016/j.cattod.2011.04.041] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Wei D, Wang L, Tang M. A DFT study on the thermal reaction mechanisms of fluorobutanesulfonyl azide with pyrazine under solvent free condition. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2011.04.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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A combined experimental and DFT study of active structures and self-cycle mechanisms of mononuclear tungsten peroxo complexes in oxidation reactions. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.02.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Wei D, Zhu Y, Zhang C, Sun D, Zhang W, Tang M. A DFT study on enantioselective synthesis of aza-β-lactams via NHC-catalyzed [2+2] cycloaddition of ketenes with diazenedicarboxylates. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcata.2010.11.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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He Y, Xue Y. Mechanism Insight into the Cyanide-Catalyzed Benzoin Condensation: A Density Functional Theory Study. J Phys Chem A 2010; 114:9222-30. [DOI: 10.1021/jp103031q] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yunqing He
- College of Chemistry, Key Lab of Green Chemistry and Technology in Ministry of Education and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, People’s Republic of China, and Department of Chemistry and Engineering, Sichuan University of Arts and Science, Dazhou 635000,People’s Republic of China
| | - Ying Xue
- College of Chemistry, Key Lab of Green Chemistry and Technology in Ministry of Education and State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, People’s Republic of China, and Department of Chemistry and Engineering, Sichuan University of Arts and Science, Dazhou 635000,People’s Republic of China
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Wei D, Cui C, Qu Z, Zhu Y, Tang M. A computational study on the reaction mechanisms of N-formylation of amines under a Lewis acid catalysis. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.theochem.2010.04.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Ilieva S, Cheshmedzhieva D, Tasheva D. The origin of diastereoselectivity in the Michael addition reaction: a computational study of the interaction between CH-acidic Schiff base and α,β-unsaturated ketones. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Wei D, Zhang W, Zhu Y, Tang M. A DFT study on the reaction mechanisms of ketene–ketone [2+2+2] cycloaddition to form 3-aryglutaric anhydrides under a Lewis acid catalysis: What is the role of BF3? ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcata.2010.04.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Zhang C, Zhu Y, Wei D, Sun D, Zhang W, Tang M. Theoretical Study on the Reaction Mechanism between 6-Benzyl-6-azabicyclo[2.2.1]hept-2-ene and Benzoyl Isocyanate to Urea and Isourea. J Phys Chem A 2010; 114:2913-9. [DOI: 10.1021/jp910173d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Cong Zhang
- Center of Computational Chemistry, Department of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450052, P. R. China
| | - Yanyan Zhu
- Center of Computational Chemistry, Department of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450052, P. R. China
| | - Donghui Wei
- Center of Computational Chemistry, Department of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450052, P. R. China
| | - Dongzhen Sun
- Center of Computational Chemistry, Department of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450052, P. R. China
| | - Wenjing Zhang
- Center of Computational Chemistry, Department of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450052, P. R. China
| | - Mingsheng Tang
- Center of Computational Chemistry, Department of Chemistry, Zhengzhou University, Zhengzhou, Henan Province, 450052, P. R. China
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