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Rigid, strained, and flexible: a DFT study of a backbone-affected monohydride formation of salen and salan complexes. Theor Chem Acc 2022. [DOI: 10.1007/s00214-022-02889-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThe monohydride formation of some palladium(II)-sulfosalen and sulfosalan catalysts was studied by DFT methods. The coordination of the hydrogen molecule to the metal center and the following heterolytic dissociation of the coordinated hydrogen could occur in a two-step or a concerted process resulting in a monohydride complex and having a protonated dissociated phenolate arm. The effect of the backbone frame of the ligands (the molecular unit between two nitrogen atoms) strongly determines the energetics and the type of the hydride formation. Rigid, strained, and flexible molecular structures were studied covering a wide range of planar and spherical types of backbones. Besides the previously studied Direct 1 and Direct 2 mechanisms, three other mechanisms of direct monohydride formation were found. Known and fictive structures were studied to predict kinetically and thermodynamically preferred pathways as well as complexes for this type of reaction.
Graphical Abstract
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2
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Purgel M, Fehér PP, Balogh ÁK, Bunda S, Joó F. Water-mediated formation of hydride derivates from flexible Pd-salan complexes: A DFT study. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111331] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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3
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Mella C, Torres CC, Pecchi G, Campos CH. Mesoporous Palladium N,N'-Bis(3-Allylsalicylidene)o-Phenylenediamine-Methyl Acrylate Resins as Heterogeneous Catalysts for the Heck Coupling Reaction. MATERIALS (BASEL, SWITZERLAND) 2019; 12:ma12162612. [PMID: 31426313 PMCID: PMC6721152 DOI: 10.3390/ma12162612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 06/10/2023]
Abstract
Palladium N,N'-bis(3-allylsalicylidene)o-phenylenediamine complex (PdAS) immobilized onto mesoporous polymeric methyl acrylate (MA) based resins (PdAS(x)-MA, x = 1, 2, 5, or 10 wt.%) were successfully prepared as heterogeneous catalysts for the Heck reaction. The catalysts were synthesized via radical suspension polymerization using PdAS as a metal chelate monomer, divinylbenzene and MA as co-monomers. The effect of the PdAS(x) content on the physicochemical properties of the resins is also reported. The catalysts were characterized by using a range of analytical techniques. The large surface area (>580 m2·g-1) and thermal stability (up to 250 °C) of the PdAS(x)-MA materials allows their application as catalysts in the C-C coupling reaction between iodobenzene and MA in the presence of trimethylamine at 120 °C using DMF as the solvent. The PdAS(10)-MA catalyst exhibited the highest catalytic performance with no significant catalytic loss being observed after five reuses, thereby indicating excellent catalyst stability in the reaction medium.
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Affiliation(s)
- Claudio Mella
- Depto. Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile
| | - Cecilia C Torres
- Depto. de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andrés Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano 4300866, Chile
| | - Gina Pecchi
- Depto. Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile
- Millenium Nuclei on Catalytic Processes towards Sustainable Chemistry (CSC), Santiago 8340518, Chile
| | - Cristian H Campos
- Depto. Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile.
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4
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Bis-quinoline-2-carboxylic acid Copper Salt as an Efficient Catalyst for Synthesis of Aryl Olefins by Heck Reaction. Catal Letters 2019. [DOI: 10.1007/s10562-019-02885-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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5
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Yang L, Hu X, Wu Y. The influence of axial ligands on the catalytic activity and enantioselectivity of salen‐Mn complexes in the asymmetric epoxidation. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.3972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Liu Yang
- School of Chemistry and Chemical EngineeringNanjing University Nanjing P.R. China
| | - Xingbang Hu
- School of Chemistry and Chemical EngineeringNanjing University Nanjing P.R. China
| | - Youting Wu
- School of Chemistry and Chemical EngineeringNanjing University Nanjing P.R. China
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6
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Ghasemi S, Harandi ZA. Thermo-responsive poly(N-isopropylacrylamide)-block-poly(ionic liquid) of pyridinium sulfonate immobilized Pd nanoparticles in C–C coupling reactions. RSC Adv 2018; 8:14570-14578. [PMID: 35540787 PMCID: PMC9079935 DOI: 10.1039/c8ra01303a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 03/12/2018] [Indexed: 11/21/2022] Open
Abstract
A thermo-responsive poly(N-isopropylacrylamide)-block-poly(ionic liquid) (PNIPAM-b-PIL) of pyridinium-type was prepared. Initially, controlled synthesis of PNIPAM was performed via RAFT method. Subsequently, PNIPAM as macromolecular chain transfer agent (macro-CTA) was used for fabrication of PNIPAM-b-PIL through reaction with a synthesized IL monomer i.e. 4-vinyl pyridinium propane sulfonate. The Pd catalyst was produced throughout palladium nanoparticles' anchoring into this block copolymer. The catalyst was characterized using ICP, FT-IR, NMR, UV-Vis, TGA, XRD, SEM and EDX techniques. The catalyst's TEM image proved nearly fine dispersion of PdNPs with negligible agglomeration. The catalyst was used in the production of a variety of substituted alkenes and biaryl compounds (Heck and Suzuki coupling) in organic and aqueous media and under solvent free conditions. Additionally, the results signified extreme reusability of the catalyst with a simple recycling procedure. Preparation of thermo-responsive PNIPAM-b-PIL/PdNPs via RAFT method and its catalytic behavior in C–C coupling with extreme reusability.![]()
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Affiliation(s)
- Soheila Ghasemi
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
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7
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Chen C, Zheng Q, Ni S, Wang H. Facile one-pot nanocatalysts encapsulation of palladium–NHC complexes for aqueous Suzuki–Miyaura couplings. NEW J CHEM 2018. [DOI: 10.1039/c7nj04836j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd–NHC loaded nanocatalysts (NCs) were readily constructed by a facile one-pot self-assembly approach. These nanoparticles exhibited excellent catalytic activity in aqueous Suzuki–Miyaura couplings.
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Affiliation(s)
- Chao Chen
- College of Life Sciences
- Huzhou University
- Huzhou
- China
| | - Qing Zheng
- College of Life Sciences
- Huzhou University
- Huzhou
- China
| | - Shengliang Ni
- College of Life Sciences
- Huzhou University
- Huzhou
- China
| | - Hangxiang Wang
- The First Affiliated Hospital
- School of Medicine
- Zhejiang University
- Hangzhou
- China
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Rao KU, Lakshmidevi J, Appa RM, Prasad SS, Narasimhulu M, Vijitha R, Rao KSVK, Venkateswarlu K. Palladium(II)-Porphyrin Complexes as Efficient and Eco-Friendly Catalysts for Mizoroki-Heck Coupling. ChemistrySelect 2017. [DOI: 10.1002/slct.201701413] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Kanusu Umamaheswara Rao
- Department of Chemistry; Jawaharlal Nehru Technological University Hyderabad, Kukatpalli; Hyderabad 500 085 India
| | - Jangam Lakshmidevi
- Laboratory for Synthetic & Natural Products Chemistry; Department of Chemistry; Yogi Vemana University; Kadapa 516 003 India
| | - Rama Moorthy Appa
- Laboratory for Synthetic & Natural Products Chemistry; Department of Chemistry; Yogi Vemana University; Kadapa 516 003 India
| | - Sana Siva Prasad
- Laboratory for Synthetic & Natural Products Chemistry; Department of Chemistry; Yogi Vemana University; Kadapa 516 003 India
| | - Manchala Narasimhulu
- Laboratory for Synthetic & Natural Products Chemistry; Department of Chemistry; Yogi Vemana University; Kadapa 516 003 India
| | - Raagala Vijitha
- Polymer Biomaterial Design & Synthesis Laboratory; Department of Chemistry; Yogi Vemana University; Kadapa 516 003 India
| | | | - Katta Venkateswarlu
- Laboratory for Synthetic & Natural Products Chemistry; Department of Chemistry; Yogi Vemana University; Kadapa 516 003 India
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Wang Y, Liu X, Du C, Zhang L. Salicylaldoxime-functionalized poly(ethylene glycol)-grafted dicationic ionic liquid as a water-soluble and recyclable ligand for palladium-catalyzed Mizoroki–Heck reactions in aqueous phase. SYNTHETIC COMMUN 2017. [DOI: 10.1080/00397911.2017.1293108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Yinglei Wang
- School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang, China
| | - Xueguo Liu
- School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang, China
| | - Chaojun Du
- School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang, China
| | - Li Zhang
- School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang, China
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10
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Song JY, Liu Y, Zhao HY, Han HT, Li ZF, Guo WH, Chu WY, Sun ZZ. Efficient nickel(ii) naringenin-oxime complex catalyzed Mizoroki–Heck cross-coupling reaction in the presence of hydrazine hydrate. NEW J CHEM 2017. [DOI: 10.1039/c7nj03148c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A novel nickel(ii) naringenin-oxime complex was designed, synthesized and characterized.
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Affiliation(s)
- Jin-Yi Song
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
| | - Yang Liu
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
| | - Hong-Yan Zhao
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
| | - Hua-Tao Han
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
| | - Zhuo-Fei Li
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
| | - Wei-Hao Guo
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
| | - Wen-Yi Chu
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
| | - Zhi-Zhong Sun
- School of Chemistry and Materials Science
- Heilongjiang University
- Harbin 150080
- P. R. China
- Key Laboratory of Chemical Engineering Process & Technology for High-efficiency Conversion
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11
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Lebedeva MA, Chamberlain TW, Thomas A, Thomas BE, Stoppiello CT, Volkova E, Suyetin M, Khlobystov AN. Chemical reactions at the graphitic step-edge: changes in product distribution of catalytic reactions as a tool to explore the environment within carbon nanoreactors. NANOSCALE 2016; 8:11727-11737. [PMID: 27222094 DOI: 10.1039/c6nr03360a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A series of explorative cross-coupling reactions have been developed to investigate the local nanoscale environment around catalytically active Pd(ii)complexes encapsulated within hollow graphitised nanofibers (GNF). Two new fullerene-containing and fullerene-free Pd(ii)Salen catalysts have been synthesised, and their activity and selectivity towards different substrates has been explored in nanoreactors. The catalysts not only show a significant increase in activity and stability upon heterogenisation at the graphitic step-edges inside the GNF channel, but also exhibit a change in selectivity affected by the confinement which alters the distribution of isomeric products of the reaction. Furthermore, the observed selectivity changes reveal unprecedented details regarding the location and orientation of the catalyst molecules inside the GNF nanoreactor, inaccessible by any spectroscopic or microscopic techniques, thus shedding light on the precise reaction environment inside the molecular catalyst-GNF nanoreactor.
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Affiliation(s)
- Maria A Lebedeva
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK. and Department of Materials, University of Oxford, 16 Parks Road, Oxford, OX1 3PH, UK
| | - Thomas W Chamberlain
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK. and School of Chemistry, University of Leeds, Leeds, LS2 9JT, UK
| | - Alice Thomas
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
| | - Bradley E Thomas
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
| | - Craig T Stoppiello
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK.
| | - Evgeniya Volkova
- Institute of Mechanics of Ural Branch of Russian Academy of Sciences, T. Baramzinoy St., 34, Izhevsk, 426067, Russian Federation
| | - Mikhail Suyetin
- Institute of Mechanics of Ural Branch of Russian Academy of Sciences, T. Baramzinoy St., 34, Izhevsk, 426067, Russian Federation
| | - Andrei N Khlobystov
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK. and Nanoscale and Microscale Research Centre, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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12
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Pourjavadi A, Safaie N, Hosseini SH, Bennett C. Graphene oxide/poly(imidazole/imidazolium) nanocomposite: An effective support for immobilization of large amounts of Pd nanoparticles. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.04.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Martínez AV, Leal-Duaso A, García JI, Mayoral JA. An extremely highly recoverable clay-supported Pd nanoparticle catalyst for solvent-free Heck–Mizoroki reactions. RSC Adv 2015. [DOI: 10.1039/c5ra10191c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Palladium nanoparticles supported onto LAPONITE® clay are shown to be robust and highly recoverable catalysts (up to 75 catalytic cycles) for Mizoroki–Heck reactions.
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Affiliation(s)
- Alejandro V. Martínez
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) and Department of Organic Chemistry
- Facultad de Ciencias. CSIC-Universidad de Zaragoza
- E-50009 Zaragoza
- Spain
| | - Alejandro Leal-Duaso
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) and Department of Organic Chemistry
- Facultad de Ciencias. CSIC-Universidad de Zaragoza
- E-50009 Zaragoza
- Spain
| | - José I. García
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) and Department of Organic Chemistry
- Facultad de Ciencias. CSIC-Universidad de Zaragoza
- E-50009 Zaragoza
- Spain
| | - José A. Mayoral
- Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) and Department of Organic Chemistry
- Facultad de Ciencias. CSIC-Universidad de Zaragoza
- E-50009 Zaragoza
- Spain
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14
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Xi X, Shao J, Hu X, Wu Y. Structure and asymmetric epoxidation reactivity of chiral Mn(iii) salen catalysts modified by different axial anions. RSC Adv 2015. [DOI: 10.1039/c5ra13178b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The axial anions influence the electronic structure, steric configuration, and enantioselectivity of the chiral Mn(iii) salen complexes.
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Affiliation(s)
- Xiuxing Xi
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Jing Shao
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Xingbang Hu
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Youting Wu
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
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