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Parthiban J, Awasthi MK, Kharde TA, Kalita K, Singh SK. Recent progress in molecular transition metal catalysts for hydrogen production from methanol and formaldehyde. Dalton Trans 2024; 53:4363-4389. [PMID: 38349644 DOI: 10.1039/d3dt03668e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Abstract
Hydrogen is considered as a potential alternative and sustainable energy carrier, but its safe storage and transportation are still challenging due to its low volumetric energy density. Notably, C1-based substrates, methanol and formaldehyde, containing high hydrogen contents of 12.5 wt% and 6.7 wt%, respectively, can release hydrogen on demand in the presence of a suitable catalyst. Advantageously, both methanol and aqueous formaldehyde are liquid at room temperature, and hence can be stored and transported considerably more safely than hydrogen gas. Moreover, these C1-based substrates can be produced from biomass waste and can also be regenerated from CO2, a greenhouse gas. In this review, the recent progress in hydrogen production from methanol and formaldehyde over noble to non-noble metal complex-based molecular transition metal catalysts is extensively reviewed. This review also focuses on the critical role of the structure-activity relationship of the catalyst in the dehydrogenation pathway.
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Affiliation(s)
- Jayashree Parthiban
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
| | - Mahendra K Awasthi
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
| | - Tushar A Kharde
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
| | - Khanindra Kalita
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
| | - Sanjay Kumar Singh
- Catalysis Group, Department of Chemistry, Indian Institute of Technology Indore, Simrol, Indore 453552, Madhya Pradesh, India.
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Ocampo MVL, Murray LJ. Metal-Tuned Ligand Reactivity Enables CX 2 (X = O, S) Homocoupling with Spectator Cu Centers. J Am Chem Soc 2024; 146:1019-1025. [PMID: 38165085 DOI: 10.1021/jacs.3c11928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Ligand non-innocence is ubiquitous in catalysis with ligands in synthetic complexes contributing as electron reservoirs or co-sites for substrate activation. The latter chemical non-innocence is manifested in H+ storage or relay at sites beyond the metal primary coordination sphere. Reaction of a competent CO2-to-oxalate reduction catalyst, namely, [K(THF)3](Cu3SL), where L3- is a tris(β-diketiminate) cyclophane, with CS2 affords tetrathiooxalate at long reaction times or at high CS2 concentrations, where otherwise an equilibrium is established between the starting species and a complex-CS2 adduct in which the CS2 is bound to the C atom on the ligand backbone. X-ray diffraction analysis of this adduct reveals no apparent metal participation, suggesting an entirely ligand-based reaction controlled by the charge state of the cluster. Thermodynamic parameters for the formation of the aforementioned Cligand-CS2 bond were experimentally determined, and trends with cation Lewis acidity were studied, where more acidic cations shift the equilibrium toward the adduct. Relevance of such an adduct in the reduction of CO2 to oxalate by this complex is supported by DFT studies, similar effects of countercation Lewis acidity on product formation, and the homocoupled heterocumulene product speciation as determined by isotopic labeling studies. Taken together, this system extends chemical non-innocence beyond H+ to effect catalytic transformations involving C-C bond formation and represents the rarest example of metal-ligand cooperativity, that is, spectator metal ion(s) and the ligand as the reaction center.
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Affiliation(s)
- M Victoria Lorenzo Ocampo
- Center for Catalysis, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Leslie J Murray
- Center for Catalysis, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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3
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Guin AK, Pal S, Chakraborty S, Chakraborty S, Paul ND. Oxygen Dependent Switchable Selectivity during Ruthenium Catalyzed Selective Synthesis of C3-Alkylated Indoles and Bis(indolyl)methanes. J Org Chem 2023. [PMID: 38015094 DOI: 10.1021/acs.joc.3c01191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Herein, we report a ligand-centered redox-controlled oxygen-dependent switchable selectivity during ruthenium-catalyzed selective synthesis of C3-alkylated indoles and bis(indolyl)methanes (BIMs). A wide variety of C3-alkylated indoles and BIMs were prepared selectively in moderate to good isolated yields by coupling a wide variety of indoles and alcohols, catalyzed by a well-defined, air-stable, and easy-to-prepare Ru(II)-catalyst (1a) bearing a redox-active tridentate pincer (L1a). Catalyst 1a efficiently catalyzed the C3-alkylation of indoles under an argon atmosphere while, under an oxygen environment, exclusively producing the BIMs. A few drug molecules containing BIMs were also synthesized efficiently. 1a exhibited excellent chemoselectivity with alcohols containing internal carbon-carbon double bonds. Mechanistic investigation revealed that the coordinated azo-aromatic ligand actively participates during the catalysis. During the dehydrogenation of alcohols, the azo-moiety of the ligand stores the hydrogen removed from the alcohols and subsequently transfers the hydrogen to the alkylideneindolenine intermediate, forming the C3-alkylated indoles. While under an oxygen environment, the transfer of hydrogen from the ligand scaffold to the molecular oxygen generates H2O2, leaving no scope for hydrogenation of the alkylideneindolenine intermediate, rather than it undergoing 1,4-Michael-type addition forming the BIMs.
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Affiliation(s)
- Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhasree Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Santana Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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Yuan X, Wu X, Xiong J, Yan B, Gao R, Liu S, Zong M, Ge J, Lou W. Hydrolase mimic via second coordination sphere engineering in metal-organic frameworks for environmental remediation. Nat Commun 2023; 14:5974. [PMID: 37749093 PMCID: PMC10520056 DOI: 10.1038/s41467-023-41716-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 09/15/2023] [Indexed: 09/27/2023] Open
Abstract
Enzymes achieve high catalytic activity with their elaborate arrangements of amino acid residues in confined optimized spaces. Nevertheless, when exposed to complicated environmental implementation scenarios, including high acidity, organic solvent and high ionic strength, enzymes exhibit low operational stability and poor activity. Here, we report a metal-organic frameworks (MOFs)-based artificial enzyme system via second coordination sphere engineering to achieve high hydrolytic activity under mild conditions. Experiments and theoretical calculations reveal that amide cleavage catalyzed by MOFs follows two distinct catalytic mechanisms, Lewis acid- and hydrogen bonding-mediated hydrolytic processes. The hydrogen bond formed in the secondary coordination sphere exhibits 11-fold higher hydrolytic activity than the Lewis acidic zinc ions. The MOFs exhibit satisfactory degradation performance of toxins and high stability under extreme working conditions, including complicated fermentation broth and high ethanol environments, and display broad substrate specificity. These findings hold great promise for designing artificial enzymes for environmental remediation.
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Affiliation(s)
- Xin Yuan
- Lab of Applied Biocatalysis, School of Food Science and Technology, South China University of Technology, 510640, Guangzhou, Guangdong, China
| | - Xiaoling Wu
- Lab of Applied Biocatalysis, School of Food Science and Technology, South China University of Technology, 510640, Guangzhou, Guangdong, China.
| | - Jun Xiong
- Lab of Applied Biocatalysis, School of Food Science and Technology, South China University of Technology, 510640, Guangzhou, Guangdong, China
| | - Binhang Yan
- Department of Chemical Engineering, Tsinghua University, 100084, Beijing, China
| | - Ruichen Gao
- Lab of Applied Biocatalysis, School of Food Science and Technology, South China University of Technology, 510640, Guangzhou, Guangdong, China
| | - Shuli Liu
- Lab of Applied Biocatalysis, School of Food Science and Technology, South China University of Technology, 510640, Guangzhou, Guangdong, China
| | - Minhua Zong
- Lab of Applied Biocatalysis, School of Food Science and Technology, South China University of Technology, 510640, Guangzhou, Guangdong, China
| | - Jun Ge
- Key Laboratory of Industrial Biocatalysis, Ministry of Education, Department of Chemical Engineering, Tsinghua University, 100084, Beijing, China.
| | - Wenyong Lou
- Lab of Applied Biocatalysis, School of Food Science and Technology, South China University of Technology, 510640, Guangzhou, Guangdong, China.
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5
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Mukherjee A, Datta S, Richmond MG, Bhattacharya S. Ruthenium complexes of 1,4-diazabutadiene ligands with a cis-RuCl 2 moiety for catalytic acceptorless dehydrogenation of alcohols: DFT evidence of chemically non-innocent ligand participation. RSC Adv 2023; 13:25660-25672. [PMID: 37649575 PMCID: PMC10463240 DOI: 10.1039/d3ra04750d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 08/07/2023] [Indexed: 09/01/2023] Open
Abstract
The acceptorless dehydrogenative coupling (ADC) of primary alcohols to esters by diazabutadiene-coordinated ruthenium compounds is reported. Treatment of cis-Ru(dmso)4Cl2 in acetone at 56 °C with different 1,4-diazabutadienes [p-XC6H4N[double bond, length as m-dash]C(H)(H)C[double bond, length as m-dash]NC6H4X-p; X = H, CH3, OCH3, and Cl; abbreviated as DAB-X], gives trans-Ru[κ2-N,N-DAB-X]2Cl2 as the kinetic product of substitution. Heating these products in o-xylene at 144 °C gives the thermodynamically favored cis-Ru[κ2-N,N-DAB-X]2Cl2 isomers. Electronic structure calculations confirm the greater stability of the cis diastereomer. The molecular structures for each pair of geometric isomers have been determined by X-ray diffraction analyses. Cyclic voltammetry experiments on the complexes show an oxidative response and a reductive response within 0.50 to 0.93 V and -0.76 to -1.24 V vs. SCE respectively. The cis-Ru[κ2-N,N-DAB-X]2Cl2 complexes function as catalyst precursors for the acceptorless dehydrogenative coupling of primary alcohols to H2 and homo- and cross-coupled esters. When 1,4-butanediol and 1,5-pentanediol are employed as substrates, lactones and hydroxyaldehydes are produced as the major dehydrogenation products, while secondary alcohols afforded ketones in excellent yields. The mechanism for the dehydrogenation of benzyl alcohol to benzyl benzoate and H2 using cis-Ru[κ2-N,N-DAB-H]2Cl2 (cis-1) as a catalyst precursor was investigated by DFT calculations. The data support a catalytic cycle that involves the four-coordinate species Ru[κ2-N,N-DAB-H][κ1-N-DAB-H](κ1-OCH2Ph) whose protonated κ1-diazabutadiene moiety functions as a chemically non-innocent ligand that facilitates a β-hydrogen elimination from the κ1-O-benzoxide ligand to give the corresponding hydride HRu[κ2-N,N-DAB-H][κ1-N-DAB-H](κ2-O,C-benzaldehyde). H2 production follows a Noyori-type elimination to give (H2)Ru[κ2-N,N-DAB-H][κ1-N-DAB-H](κ1-O-benzaldehyde) as an intermediate in the catalytic cycle.
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Affiliation(s)
- Aparajita Mukherjee
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University Kolkata 700 032 India
| | - Sayanti Datta
- Department of Chemistry, Brainware University Kolkata 700 125 India
| | | | - Samaresh Bhattacharya
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University Kolkata 700 032 India
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Guin AK, Pal S, Chakraborty S, Chakraborty S, Paul ND. N-Alkylation of Amines by C1-C10 Aliphatic Alcohols Using A Well-Defined Ru(II)-Catalyst. A Metal-Ligand Cooperative Approach. J Org Chem 2023; 88:5944-5961. [PMID: 37052217 DOI: 10.1021/acs.joc.3c00313] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
A Ru(II)-catalyzed efficient and selective N-alkylation of amines by C1-C10 aliphatic alcohols is reported. The catalyst [Ru(L1a)(PPh3)Cl2] (1a) bearing a tridentate redox-active azo-aromatic pincer, 2-((4-chlorophenyl)diazenyl)-1,10-phenanthroline (L1a) is air-stable, easy to prepare, and showed wide functional group tolerance requiring only 1.0 mol % (for N-methylation and N-ethylation) and 0.1 mol % of catalyst loading for N-alkylation with C3-C10 alcohols. A wide array of N-methylated, N-ethylated, and N-alkylated amines were prepared in moderate to good yields via direct coupling of amines and alcohols. 1a efficiently catalyzes the N-alkylation of diamines selectively. It is even suitable for synthesizing N-alkylated diamines using (aliphatic) diols producing the tumor-active drug molecule MSX-122 in moderate yield. 1a showed excellent chemo-selectivity during the N-alkylation using oleyl alcohol and monoterpenoid β-citronellol. Control experiments and mechanistic investigations revealed that the 1a-catalyzed N-alkylation reactions proceed via a borrowing hydrogen transfer pathway where the hydrogen removed from the alcohol during the dehydrogenation step is stored in the ligand backbone of 1a, which in the subsequent steps transferred to the in situ formed imine intermediate to produce the N-alkylated amines.
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Affiliation(s)
- Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhasree Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhajit Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Santana Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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7
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Exploring the conversion mechanism of formaldehyde to CO2 and H2 catalyzed by bifunctional ruthenium catalysts: A DFT study. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Yuan XA, Li D, Wang S, Jiang YY, Liu P, Bi S. Distinctive Mechanistic Scenarios and Substituent Effects of Gold(I) versus Copper(I) Catalysis for Hydroacylation of Terminal Alkynes with Glyoxal Derivatives. J Org Chem 2022; 87:11681-11692. [PMID: 35984222 DOI: 10.1021/acs.joc.2c01316] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Density functional theory (DFT) calculations have been conducted to study the mechanisms, substituent effects, and the role of bases in Au- and Cu-catalyzed hydroacylation of terminal alkyne with glyoxal derivatives. The two reactions, despite being catalyzed by the same group of transition metals, follow distinctive reaction mechanisms. Through the detailed DFT calculations, insights into the mechanisms are obtained, and the substituent effects and the role of the bases are understood.
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Affiliation(s)
- Xiang-Ai Yuan
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, People's Republic of China
| | - Dan Li
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, People's Republic of China
| | - Shanshan Wang
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, People's Republic of China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, People's Republic of China
| | - Peng Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, People's Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, People's Republic of China
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9
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Guin AK, Mondal R, Chakraborty G, Pal S, Paul ND. Ruthenium-Catalyzed Dehydrogenative Functionalization of Alcohols to Pyrroles: A Comparison between Metal-Ligand Cooperative and Non-cooperative Approaches. J Org Chem 2022; 87:7106-7123. [PMID: 35583483 DOI: 10.1021/acs.joc.2c00311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Herein, we report the synthesis and characterization of two ruthenium-based pincer-type catalysts, [1]X (X = Cl, PF6) and 2, containing two different tridentate pincer ligands, 2-pyrazolyl-(1,10-phenanthroline) (L1) and 2-arylazo-(1,10-phenanthroline) (L2a/2b, L2a = 2-(phenyldiazenyl)-1,10-phenanthroline; L2b = 2-((4-chlorophenyl)diazenyl)-1,10-phenanthroline), and their application in the synthesis of substituted pyrroles via dehydrogenative alcohol functionalization reactions. In catalyst [1]X (X = Cl, PF6), the tridentate scaffold 2-pyrazolyl-(1,10-phenanthroline) (L1) is apparently redox innocent, and all the redox events occur at the metal center, and the coordinated ligands remain as spectators. In contrast, in catalysts 2a and 2b, the coordinated azo-aromatic scaffolds are highly redox-active and known to participate actively during the dehydrogenation of alcohols. A comparison between the catalytic activities of these two catalysts was made, starting from the simple dehydrogenation of alcohols to further dehydrogenative functionalization of alcohols to various substituted pyrroles to understand the advantages/disadvantages of the metal-ligand cooperative approach. Various substituted pyrroles were prepared via dehydrogenative coupling of secondary alcohols and amino alcohols, and the N-substituted pyrroles were synthesized via dehydrogenative coupling of aromatic amines with cis-2-butene-1,4-diol and 2-butyne-1,4-diol, respectively. Several control reactions and spectroscopic experiments were performed to characterize the catalysts and establish the reaction mechanism.
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Affiliation(s)
- Amit Kumar Guin
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Rakesh Mondal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Gargi Chakraborty
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Subhasree Pal
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
| | - Nanda D Paul
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Botanic Garden, Howrah 711103, India
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10
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Wu M, Huang S, Hou H, Lin J, Lin M, Zhou S, Zheng Z, Sun W, Ke F. DIPEA-induced activation of OH - for the synthesis of amides via photocatalysis. RSC Adv 2022; 12:14724-14728. [PMID: 35702194 PMCID: PMC9109258 DOI: 10.1039/d2ra02107b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/02/2022] [Indexed: 11/21/2022] Open
Abstract
The development of green protocols for photocatalysis where water acts as a nucleophile, induced by a weak organic base, is difficult to achieve in organic chemistry. Herein, an efficient light-mediated strategy for the synthesis of amides in which a weak organic base acts as a reductant to induce the formation of OH– from water under metal-free conditions is reported. A mechanistic study reveals that the generation of an N,N-diisopropylethylamine (DIPEA) radical via single electron transfer (SET), with the assistance of photocatalyst, that increases the nucleophilicity of the water molecules with respect to the cyanides is essential. Moreover, the removal rate of nitrile in wastewater can be as high as 83%, indicating that this strategy has excellent potential for nitrile degradation. Under weak organic base condition DIPEA as a reductant to increase the nucleophilicity of H2O an excellent potential system for nitrile degradation.![]()
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Affiliation(s)
- Mei Wu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Sheng Huang
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Huiqing Hou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Jie Lin
- Department of VIP Dental Service, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350002 China
| | - Mei Lin
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Sunying Zhou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Zhiqiang Zheng
- Department of VIP Dental Service, School and Hospital of Stomatology, Fujian Medical University Fuzhou 350002 China
| | - Weiming Sun
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Fang Ke
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
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11
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Yan J, Zhou Y, Liu X, Li DS. Mechanistic insights into H 2 evolution via water splitting at the expense of B 2(OH) 4: a theoretical study. Phys Chem Chem Phys 2022; 24:8182-8188. [PMID: 35343980 DOI: 10.1039/d1cp05277b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
H2 has been comprehensively deemed a promising potential candidate to replace traditional fossil fuel-based energy. Typically, the hydrolysis of most hydrogen-rich boron hydrides (e.g. NaBH4, NH3BH3 and Me2NHBH3) catalyzed by nanomaterials generates H2 with only one H atom supplied by water and the other one by a hydrogen-rich boron hydride. Interestingly, both H atoms of produced H2 are provided by water upon hydrolysis of B2(OH)4. Herein, the catalytic mechanisms of H2 evolution upon water splitting at the expense of B2(OH)4 in its hydrolysis reactions catalyzed by acid, base or metal nanoparticles have been investigated by density functional theory (DFT) calculations. By computational studies, the mechanisms of catalysis by base and metal nanoparticles are basically the same as those speculated from our previous experiments. The previously proposed acid catalytic mechanism has been overturned, however. This study not only provides important insights into the catalytic mechanism for water splitting at the expense of B2(OH)4, but also opens up an exciting opportunity to use water to store H2.
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Affiliation(s)
- Jiaying Yan
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei, 443002, China.
| | - Yuhang Zhou
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei, 443002, China.
| | - Xiang Liu
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei, 443002, China.
| | - Dong-Sheng Li
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang, Hubei, 443002, China.
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12
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Huang C, Pang Y, Yuan XA, Jiang YY, Wang X, Liu P, Bi S, Xie J. Noncovalent Interaction- and Steric Effect-Controlled Regiodivergent Selectivity in Dimeric Manganese-Catalyzed Hydroarylation of Internal Alkynes: A Computational Study. J Org Chem 2022; 87:4215-4225. [PMID: 35262361 DOI: 10.1021/acs.joc.1c03058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Selective hydroarylation of internal alkynes catalyzed by a dimeric manganese complex provides a powerful strategy for the construction of multisubstituted alkenes. In this work, density functional theory (DFT) calculations and experimental studies were carried out to explore the mechanism and origin of regiodivergent hydroarylation of internal alkynes reported by our group. The results demonstrate that this reaction first proceeds via a bimetallic mechanism to generate the active catalyst that subsequently undergoes a monometallic mechanism to run the three-stage catalytic cycle: alkyne migratory insertion, protonation, and active catalyst regeneration. Alkyne migratory insertion is considered as the regioselectivity-determining step. Energy decomposition analyses on insertion transition states suggest that the interaction between the substrate and catalyst is mainly responsible for the observed exclusive γ-selectivity of 1a, while the deformation of these two sections induced by the sterically hindered phenyl group and aryl group accounts for the complete β-position arylation of 1e. The decrease of γ-selectivity with the regulation of a tertiary alcohol motif in 1a originates from the reduced noncovalent interaction. The computational results provide important insights into the origin of regiodivergent selectivities and useful information for further designing and adjusting the strategy in Mn-catalyzed alkyne hydroarylation.
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Affiliation(s)
- Congcong Huang
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Yubo Pang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xiang-Ai Yuan
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Xiaoyu Wang
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Peng Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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13
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de Zwart FJ, Sinha V, Trincado M, Grützmacher H, de Bruin B. Computational mechanistic studies of ruthenium catalysed methanol dehydrogenation. Dalton Trans 2022; 51:3019-3026. [PMID: 35079760 PMCID: PMC8862544 DOI: 10.1039/d1dt04168a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Homogeneous ruthenium catalysed methanol dehydrogenation could become a key reaction for hydrogen production in liquid fuel cells. In order to improve existing catalytic systems, mechanistic insight is paramount in directing future studies. Herein, we describe what computational mechanistic research has taught us so far about ruthenium catalysed dehydrogenation reactions. In general, two mechanistic pathways can be operative in these reactions: a metal-centered or a metal-ligand cooperative (Noyori-Morris type) minimum energy reaction pathway (MERP). Discerning between these mechanisms on the basis of computational studies has proven to be highly input dependent, and to circumvent pitfalls it is important to consider several factors, such as solvent effects, metal-ligand cooperativity, alternative geometries, and complex electronic structures of metal centres. This Frontiers article summarizes the reported computational research performed on ruthenium catalyzed dehydrogenation reactions performed in the past decade, and serves as a guide for future research.
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Affiliation(s)
- Felix J de Zwart
- Van 't Hoff Institute for Molecular Sciences (HIMS), Science Park 904, 1098 XH Amsterdam, The Netherlands.
| | - Vivek Sinha
- Inorganic Systems Engineering, Department of Chemical Engineering, Delft University of Technology, Van der Maasweg 9, Delft 2629 HZ, The Netherlands.
| | - Monica Trincado
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Hansjörg Grützmacher
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zurich, Switzerland
| | - Bas de Bruin
- Van 't Hoff Institute for Molecular Sciences (HIMS), Science Park 904, 1098 XH Amsterdam, The Netherlands.
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14
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Wang Q, Lan J, Liang R, Xia Y, Qin L, Chung LW, Zheng Z. New Tricks for an Old Dog: Grubbs Catalysts Enable Efficient Hydrogen Production from Aqueous-Phase Methanol Reforming. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05369] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Qian Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Jialing Lan
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Rong Liang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Yihao Xia
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Lei Qin
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Lung Wa Chung
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhiping Zheng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
- Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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15
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Kumar A, Daw P, Milstein D. Homogeneous Catalysis for Sustainable Energy: Hydrogen and Methanol Economies, Fuels from Biomass, and Related Topics. Chem Rev 2022; 122:385-441. [PMID: 34727501 PMCID: PMC8759071 DOI: 10.1021/acs.chemrev.1c00412] [Citation(s) in RCA: 100] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Indexed: 02/08/2023]
Abstract
As the world pledges to significantly cut carbon emissions, the demand for sustainable and clean energy has now become more important than ever. This includes both production and storage of energy carriers, a majority of which involve catalytic reactions. This article reviews recent developments of homogeneous catalysts in emerging applications of sustainable energy. The most important focus has been on hydrogen storage as several efficient homogeneous catalysts have been reported recently for (de)hydrogenative transformations promising to the hydrogen economy. Another direction that has been extensively covered in this review is that of the methanol economy. Homogeneous catalysts investigated for the production of methanol from CO2, CO, and HCOOH have been discussed in detail. Moreover, catalytic processes for the production of conventional fuels (higher alkanes such as diesel, wax) from biomass or lower alkanes have also been discussed. A section has also been dedicated to the production of ethylene glycol from CO and H2 using homogeneous catalysts. Well-defined transition metal complexes, in particular, pincer complexes, have been discussed in more detail due to their high activity and well-studied mechanisms.
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Affiliation(s)
- Amit Kumar
- School
of Chemistry, University of St. Andrews, North Haugh, Fife, U.K., KY16 9ST
| | - Prosenjit Daw
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Berhampur, Govt. ITI (transit Campus), Berhampur 760010, India
| | - David Milstein
- Department
of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 76100, Israel
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16
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Yuan XA, Huang C, Wang X, Liu P, Bi S, Li D. Computational Study on the Mechanisms and Origins of Selectivity in Hydroarylation of 1,3-Diyne Alcohol Catalyzed by Di- and Mononuclear Manganese Complexes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiang-Ai Yuan
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Congcong Huang
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Xiaoyu Wang
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Peng Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Dan Li
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
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17
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Saha T, Prasad Rath S, Goswami S. Ruthenium(II) Complex of a Tridentate Azoaromatic Pincer Ligand and its Use in Catalytic Transfer Hydrogenation of Aldehydes and Ketones with Isopropanol. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tanushri Saha
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A&2B Raja S. C. Mullick Road Jadavpur, Kolkata 700032 India
| | - Santi Prasad Rath
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A&2B Raja S. C. Mullick Road Jadavpur, Kolkata 700032 India
| | - Sreebrata Goswami
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A&2B Raja S. C. Mullick Road Jadavpur, Kolkata 700032 India
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18
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Junker P, Rey Planells A, Espinosa Ferao A, Streubel R. Analysis of Non-innocence of Phosphaquinodimethane Ligands when Charge and Aromaticity Come into Play. Chemistry 2021; 27:9350-9359. [PMID: 33811689 PMCID: PMC8362198 DOI: 10.1002/chem.202100420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Indexed: 11/11/2022]
Abstract
Several phosphaquinodimethanes and their M(CO)5 complexes (M=Cr, Mo, W) and model derivatives have been theoretically investigated regarding the quest of non-innocence. Computed structural and electronic properties of the P-Me/NH2 substituted phosphaquinodimethanes and tungsten complexes revealed an interesting non-innocent ligand behaviour for the radical anion complexes with distonic ion character and a strong rearomatization of the middle phenyl ring. The latter was further probed taking also geometric aromaticity (HOMA) and quinoid distortion parameters (HOMQc) into account, as well as NICS(1). Furthermore, the effect of the P-substitution was investigated for real (or plausible) complexes and their free ligands focusing on the resulting aromaticity at the middle phenyl ring and vertical one-electron redox processes. The best picture of ligand engagement in redox changes was provided by representing NICS(1) values versus HOMA and the new geometric distortion parameter HOMQc8.
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Affiliation(s)
- Philip Junker
- Institut für Anorganische ChemieRheinische Friedrich-Wilhelms-Universität BonnGerhardt-Domagk-Straße 153121BonnGermany
| | - Alicia Rey Planells
- Departamento de Química OrgánicaFacultad de QuímicaUniversidad de MurciaCampus de Espinardo30100MurciaSpain
| | - Arturo Espinosa Ferao
- Departamento de Química OrgánicaFacultad de QuímicaUniversidad de MurciaCampus de Espinardo30100MurciaSpain
| | - Rainer Streubel
- Institut für Anorganische ChemieRheinische Friedrich-Wilhelms-Universität BonnGerhardt-Domagk-Straße 153121BonnGermany
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19
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Yang J, Pell AJ, Hedin N, Lyubartsev A. Computational insight into the hydrogenation of CO2 and carbamic acids to methanol by a ruthenium(II)-based catalyst: The role of amino (NH) ligand group. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111544] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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20
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Mechanism of Rh(III)-catalyzed alkylation of N-pyrimidylindoline with cyclopropanols: A DFT study. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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21
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Liu TT, Tang SY, Hu B, Liu P, Bi S, Jiang YY. Mechanism and Origin of Chemoselectivity of Ru-Catalyzed Cross-Coupling of Secondary Alcohols to β-Disubstituted Ketones. J Org Chem 2020; 85:12444-12455. [DOI: 10.1021/acs.joc.0c01671] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tian-Tian Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Shi-Ya Tang
- SINOPEC Research Institute of Safety Engineering, Qingdao 266000, People’s Republic of China
| | - Bing Hu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Peng Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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22
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Bani-Yaseen AD, Elbashier E. Computational Insights on the Electrocatalytic Behavior of [Cp*Rh] Molecular Catalysts Immobilized on Graphene for Heterogeneous Hydrogen Evolution Reaction. Sci Rep 2020; 10:5777. [PMID: 32238849 PMCID: PMC7113254 DOI: 10.1038/s41598-020-62758-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 03/13/2020] [Indexed: 12/03/2022] Open
Abstract
The heterogeneous metal-based molecular electrocatalyst can typically exhibit attractive features compared to its homogeneous analogue including recoverability and durability. As such, it is necessary to evaluate the electrocatalytic behavior of heterogenized molecular catalysts of interest toward gaining insights concerning the retainability of such behaviors while benefiting from heterogenization. In this work, we examined computationally the electrochemical properties of nanographene-based heterogenized molecular complexes of Rhodium. We assessed, as well, the electrocatalytic behavior of the heterogenized molecular catalyst for hydrogen evolution reaction (HER). Two electrochemical pathways were examined, namely one- and two-electron electrochemical reduction pathways. Interestingly, it is computationally demonstrated that [RhIII(Cp*)(phen)Cl]+-Gr can exhibit redox and electrocatalytic properties for HER that are comparable to its homogeneous analogue via a two-electron reduction pathway. On the other hand, the one-electron reduction pathway is notably found to be less favorable kinetically and thermodynamically. Furthermore, molecular insights are provided with respect to the HER employing molecular orbitals analyses and mechanistic aspects. Importantly, our findings may provide insights toward designing more efficient graphene-based molecular heterogeneous electrocatalysts for more efficient energy production.
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Affiliation(s)
- Abdulilah Dawoud Bani-Yaseen
- Department of Chemistry & Earth Sciences, College of Arts & Science, Qatar University, P.O. Box 2713, Doha, State of Qatar.
| | - Elkhansa Elbashier
- Department of Chemistry & Earth Sciences, College of Arts & Science, Qatar University, P.O. Box 2713, Doha, State of Qatar
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23
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Govindarajan N, Sinha V, Trincado M, Grützmacher H, Meijer EJ, Bruin B. An In‐Depth Mechanistic Study of Ru‐Catalysed Aqueous Methanol Dehydrogenation and Prospects for Future Catalyst Design. ChemCatChem 2020. [DOI: 10.1002/cctc.202000057] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Nitish Govindarajan
- Van ‘t Hoff Institute for Molecular Sciences and Amsterdam Center for Multiscale Modeling Science Park 904 1098 XH Amsterdam The Netherlands
| | - Vivek Sinha
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Van ‘t Hoff Institute for Molecular Sciences Science Park 904 1098 XH Amsterdam The Netherlands
| | - Monica Trincado
- Department of Chemistry and Applied Biosciences ETH Zürich Zürich CH-8093 Switzerland
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences ETH Zürich Zürich CH-8093 Switzerland
| | - Evert Jan Meijer
- Van ‘t Hoff Institute for Molecular Sciences and Amsterdam Center for Multiscale Modeling Science Park 904 1098 XH Amsterdam The Netherlands
| | - Bas Bruin
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Van ‘t Hoff Institute for Molecular Sciences Science Park 904 1098 XH Amsterdam The Netherlands
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24
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Immobilization of a selective Ru-pincer complex for low temperature methanol reforming–Material and process improvements. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.12.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Zhao Y, Liu X, Zheng L, Du Y, Shi X, Liu Y, Yan Z, You J, Jiang Y. One-Pot Methylenation–Cyclization Employing Two Molecules of CO2 with Arylamines and Enaminones. J Org Chem 2019; 85:912-923. [DOI: 10.1021/acs.joc.9b02858] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yulei Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xu Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Lijun Zheng
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yulan Du
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xinrui Shi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yunlin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhengquan Yan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Jinmao You
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, China
| | - Yuanye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
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26
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Meng R, Bi S, Jiang YY, Liu Y. C–H Activation versus Ring Opening and Inner- versus Outer-Sphere Concerted Metalation–Deprotonation in Rh(III)-Catalyzed Oxidative Coupling of Oxime Ether and Cyclopropanol: A Density Functional Theory Study. J Org Chem 2019; 84:11150-11160. [PMID: 31432674 DOI: 10.1021/acs.joc.9b01868] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ran Meng
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Yuxia Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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27
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Bains AK, Kundu A, Yadav S, Adhikari D. Borrowing Hydrogen-Mediated N-Alkylation Reactions by a Well-Defined Homogeneous Nickel Catalyst. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02977] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Amreen K. Bains
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar 140306, India
| | - Abhishek Kundu
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar 140306, India
| | - Sudha Yadav
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar 140306, India
| | - Debashis Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar 140306, India
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28
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Yue X, Li L, Li P, Luo C, Pu M, Yang Z, Lei M. A Computational Study on Iridium‐Catalyzed Production of Acetic Acid from Ethanol and Water Solution. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xin Yue
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of ChemistryBeijing University of Chemical Technology Beijing 100029 China
| | - Longfei Li
- College of Pharmaceutical ScienceHebei University Baoding Hebei 071002 China
| | - Pengjie Li
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of ChemistryBeijing University of Chemical Technology Beijing 100029 China
| | - Chenguang Luo
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of ChemistryBeijing University of Chemical Technology Beijing 100029 China
| | - Min Pu
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of ChemistryBeijing University of Chemical Technology Beijing 100029 China
| | - Zuoyin Yang
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of ChemistryBeijing University of Chemical Technology Beijing 100029 China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of ChemistryBeijing University of Chemical Technology Beijing 100029 China
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29
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Jiang YY, Zhu L, Fan X, Zhang Q, Fu YJ, Li H, Hu B, Bi S. A computational study on H 2S release and amide formation from thionoesters and cysteine. Org Biomol Chem 2019; 17:5771-5778. [PMID: 31135017 DOI: 10.1039/c9ob00854c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The recognition of the biological activity of H2S has drawn much attention to the development of biocompatible H2S release reactions. Thiol-, particularly cysteine-triggered systems which mimic the enzymatic conversion of cysteine or homocysteine to H2S have been intensively reported recently. Herein, a density functional theory (DFT) study was performed to address the reaction mechanism of H2S release and potential amide bond formation from thionoesters and cysteine to gain deeper mechanistic insights. Three possible mechanisms were considered and we found that the one starting from the nucleophilic addition of the ionized mercapto of cysteine on thionoester to generate a dithioester intermediate (Path A) is kinetically favored over the others starting from the nucleophilic addition of the amine of cysteine to generate thionoamide intermediates (Paths B and C). Dithioester then undergoes intramolecular nucleophilic addition of an amine group and the rate-limiting water-assisted proton transfer to generate a cyclic thiol intermediate, and finally affords H2S and dihydrothiazole via water-assisted elimination. The hydrolysis of thionoamide or dihydrothiazole to produce amide is highly difficult under neutral conditions but is operative under strong basic conditions, which explains the experimental observation that dihydrothiazole rather than amide is the major product. Meanwhile, the ring opening reaction of the cyclic thiol intermediate to form the more stable thionoamide is detrimental to H2S release and becomes competitive under basic conditions.
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Affiliation(s)
- Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People's Republic of China.
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30
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Fan X, Jiang YY, Zhu L, Zhang Q, Bi S. Mechanism and Origin of Stereoselectivity of Pd-Catalyzed Cascade Annulation of Aryl Halide, Alkene, and Carbon Monoxide via C–H Activation. J Org Chem 2019; 84:4353-4362. [DOI: 10.1021/acs.joc.9b00348] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xia Fan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Ling Zhu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Qi Zhang
- Institute of Industry & Equipment Technology, Hefei University of Technology, Hefei 230009, People’s Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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31
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Saha T, Pramanick R, Sengupta D, Goswami S. Metal-ligand cooperativity in a ruthenium(II) complex of bis-azoaromatic ligand for catalytic dehydrogenation of alcohols. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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32
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Jiang YY, Li G, Yang D, Zhang Z, Zhu L, Fan X, Bi S. Mechanism of Cu-Catalyzed Aerobic C(CO)–CH3 Bond Cleavage: A Combined Computational and Experimental Study. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03993] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Guoqing Li
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Daoshan Yang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People’s Republic of China
| | - Zhaoshun Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Ling Zhu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Xia Fan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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33
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Sinha V, Trincado M, Grützmacher H, de Bruin B. DFT Provides Insight into the Additive-Free Conversion of Aqueous Methanol to Dihydrogen Catalyzed by [Ru(trop 2dad)]: Importance of the (Electronic) Flexibility of the Diazadiene Moiety. J Am Chem Soc 2018; 140:13103-13114. [PMID: 30215248 PMCID: PMC6209174 DOI: 10.1021/jacs.8b09011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
![]()
The
mechanism for complete dehydrogenation of aqueous methanol to CO2 and three equivalents of H2 catalyzed by [Ru(trop2dad)] was investigated with DFT (trop2dad = 1,4-bis(5H-dibenzo[a,d]cyclohepten-5-yl)-1,4-diazabuta-1,3-diene).
To date, this is the only catalyst that promotes the acceptorless
dehydrogenation of aqueous methanol in homogeneous phase under mild
conditions without the addition of an additive (base, acid, or a secondary
catalyst). A detailed understanding of the mechanism of this transformation
may therefore be of significant importance for the conversion of liquid
organic fuels. Previous computational studies using simplified models
of the catalyst suggested entirely ligand-centered reaction pathways
with rather high-energy barriers for complete dehydrogenation of aqueous
methanol. These are, however, not consistent with the experimental
data. In the present paper, we reveal a different reaction mechanism
for aqueous methanol dehydrogenation that involves metal–ligand
cooperativity involving the diazadiene (dad) ligand and has substantially
lower barriers, in good agreement with the experimental data. The
dad moiety of the ligand actively participates in the alcohol activation
mechanism. In the first step of the reaction, the dad ligand rearranges
from a σ- to a π-bound coordination mode. This adjusts
the electronic structure of both the metal and the ligand, leading
to an enhanced Brønsted basicity of the nitrogen centers and
higher Lewis acidity of the ruthenium center. As a result, concerted
proton-hydride transfer to/from metal-hydride and N-protonated dad-ligand
moieties becomes possible, leading to low-barrier metal–ligand
cooperative elementary steps for alcohol activation and H2 elimination.
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Affiliation(s)
- Vivek Sinha
- Homogeneous, Supramolecular and Bio-inspired Catalysis Group (HomKat), van 't Hoff Institute for Molecular Sciences (HIMS) , Universiteit van Amsterdam , Amsterdam 1012 WX , The Netherlands
| | - Monica Trincado
- Laboratorium für Anorganische Chemie , ETH , Zürich 8092 , Switzerland
| | | | - Bas de Bruin
- Homogeneous, Supramolecular and Bio-inspired Catalysis Group (HomKat), van 't Hoff Institute for Molecular Sciences (HIMS) , Universiteit van Amsterdam , Amsterdam 1012 WX , The Netherlands
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34
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Rath SP, Sengupta D, Ghosh P, Bhattacharjee R, Chakraborty M, Samanta S, Datta A, Goswami S. Effects of Ancillary Ligands on Redox and Chemical Properties of Ruthenium Coordinated Azoaromatic Pincer. Inorg Chem 2018; 57:11995-12009. [PMID: 30207466 DOI: 10.1021/acs.inorgchem.8b01558] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In this work, the effect of the electronically different ancillary ligands on the overall properties of the RuIIL moiety (L = 2,6-bis(phenylazo)pyridine) in heteroleptic complexes of general formula [RuLQCl]0/+ was investigated. Four different ancillary ligands (Q) with different electronic effects were used to prepare the heteroleptic compounds from the precursor complex, [RuL(CH3CN)Cl2] (1); Q = pcp: 2-(4-chloro-phenylazo)pyridine (strong π-acceptor), [2]+; bpy: 2,2'-bipyridyl (moderate π-acceptor), [3]+; acac-: acetylacetonate (strong σ-donor), 4; and DTBCat2-: 3,5-di- tert-butyl catecholate (strong π-donor), 5. The complexes [2]+, [3]+, 4, and 5 were fully characterized and structurally identified. The electronic structures of these complexes along with their redox partners were elucidated by using a host of physical measurements: nuclear magnetic resonance, cyclic voltammetry, electronic paramagnetic resonance, UV-vis-NIR spectroscopy, and density functional theory. The studies revealed significant effects of the coligands on azo bond lengths of the RuL moiety and their redox behavior. Aerobic alcohol oxidation reactions using these Ru complexes as catalysts were scrutinized. It was found that the catalytic efficiency is primarily controlled by the electronic effect of the coligand. Accordingly, the complex [2]+ (containing a strong π-acceptor coligand, pcp) brings about oxidation efficiently, producing 86% of benzaldehyde. In comparison, however, the complexes 4 and 5 (containing electron donating coligand) furnished only 15-20% of benzaldehyde under identical reaction conditions. Investigations of the reaction mechanism suggest that an unstable Ru-H species is formed, which is transformed to a Ru-hydrazo intermediate by H-walking as reported by Hall et al. ( J. Am. Chem. Soc., 2015, 137, 12330). Aerial O2 regenerates the catalyst via oxidation of the hydrazo intermediate.
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Affiliation(s)
- Santi Prasad Rath
- Department of Inorganic Chemistry , Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032 , India
| | - Debabrata Sengupta
- Department of Inorganic Chemistry , Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032 , India
| | - Pradip Ghosh
- Department of Inorganic Chemistry , Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032 , India
| | - Rameswar Bhattacharjee
- Department of Spectroscopy , Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032 , India
| | - Mou Chakraborty
- Department of Inorganic Chemistry , Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032 , India
| | - Subhas Samanta
- Department of Inorganic Chemistry , Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032 , India
| | - Ayan Datta
- Department of Spectroscopy , Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032 , India
| | - Sreebrata Goswami
- Department of Inorganic Chemistry , Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032 , India
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35
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Li L, Lei M, Liu L, Xie Y, Schaefer HF. Metal-Substrate Cooperation Mechanism for Dehydrogenative Amidation Catalyzed by a PNN-Ru Catalyst. Inorg Chem 2018; 57:8778-8787. [PMID: 30010329 DOI: 10.1021/acs.inorgchem.8b00563] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The pyridine-based PNN ruthenium pincer complex (PNN)Ru(CO)(H) can catalyze the well-known dehydrogenative amidation reaction, but the mechanism is not fully understood. In this work, we find there exists an alternative metal-substrate cooperation mechanism in this reaction system, which is more favorable than the aromatization-dearomatization mechanism. The possible reaction of the excess base t-BuO- with catalyst species (PNN)Ru(CO)(H) is studied, indicating t-BuO- is able to facilitate the ligand substitution and enhance catalytic activities. With the bifunctional Ru-N moiety, the imine-substituted species (PN)(imine)Ru(CO)(H) 5 could serve as an alternative catalytic species and efficiently facilitate some elementary steps such as the hydrogen transfer, hydrogen elimination, and C-N coupling. Meanwhile, the C-N coupling step proceeds via the split of aldehydic C-H bond across the Ru(II)-imine bond, which results in an amide bond directly. The hemiaminal is uninvolved in the C-N coupling process. Finally, the formation of linear peptides and cyclic dipeptides are unveiled by the newly proposed mechanism. The metal-substrate cooperation could widely exist in transition metal catalyst systems with a large influence on the reaction activity.
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Affiliation(s)
- Longfei Li
- Center for Computational Quantum Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | | | | | - Yaoming Xie
- Center for Computational Quantum Chemistry , University of Georgia , Athens , Georgia 30602 , United States
| | - Henry F Schaefer
- Center for Computational Quantum Chemistry , University of Georgia , Athens , Georgia 30602 , United States
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36
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Valdés H, García-Eleno MA, Canseco-Gonzalez D, Morales-Morales D. Recent Advances in Catalysis with Transition-Metal Pincer Compounds. ChemCatChem 2018. [DOI: 10.1002/cctc.201702019] [Citation(s) in RCA: 146] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hugo Valdés
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior s/n, Ciudad Universitaria, Coyoacán 04510 Ciudad de México México
| | - Marco A. García-Eleno
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM; Universidad Autónoma del Estado de México; Carretera Toluca-Atlacomulco Km 14.5 Toluca, Estado de México 50200 México
| | - Daniel Canseco-Gonzalez
- CONACYT-Laboratorio Nacional de Investigación y Servicio, Agroalimentario y Forestal; Universidad Autónoma Chapingo; Texcoco de Mora México
| | - David Morales-Morales
- Instituto de Química; Universidad Nacional Autónoma de México; Circuito Exterior s/n, Ciudad Universitaria, Coyoacán 04510 Ciudad de México México
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37
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Advances in Homogeneous Catalysis for Low Temperature Methanol Reforming in the Context of the Methanol Economy. Top Catal 2018. [DOI: 10.1007/s11244-018-0963-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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38
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Abramov PA, Dmitriev AA, Kholin KV, Gritsan NP, Kadirov MK, Gushchin AL, Sokolov MN. Mechanistic study of the [(dpp-bian)Re(CO)3Br] electrochemical reduction using in situ EPR spectroscopy and computational chemistry. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.03.111] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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39
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Jiang YY, Liu TT, Zhang RX, Xu ZY, Sun X, Bi S. Mechanism and Rate-Determining Factors of Amide Bond Formation through Acyl Transfer of Mixed Carboxylic–Carbamic Anhydrides: A Computational Study. J Org Chem 2018; 83:2676-2685. [DOI: 10.1021/acs.joc.7b03107] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Tian-Tian Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Rui-Xue Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Zhong-Yan Xu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Xue Sun
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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40
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Jiang YY, Liu TT, Sun X, Xu ZY, Fan X, Zhu L, Bi S. Computational study of the mechanism of amide bond formation via CS2-releasing 1,3-acyl transfer. Org Biomol Chem 2018; 16:5808-5815. [DOI: 10.1039/c8ob01338a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A systematic computational study on CS2-releasing 1,3-acyl transfer was performed for the first time and provided deeper mechanistic insights.
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Affiliation(s)
- Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Tian-Tian Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Xue Sun
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Zhong-Yan Xu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Xia Fan
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Ling Zhu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
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41
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Chao Y, Lai J, Yang Y, Zhou P, Zhang Y, Mu Z, Li S, Zheng J, Zhu Z, Tan Y. Visible light-driven methanol dehydrogenation and conversion into 1,1-dimethoxymethane over a non-noble metal photocatalyst under acidic conditions. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01030g] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dehydrogenation and conversion of methanol into 1,1-dimethoxymethane (DMM) was achieved over noble metal free photocatalyst CdS/Ni2P under visible light.
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42
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Zhang Z, Li Y, Hou C, Zhao C, Ke Z. DFT study of CO2 hydrogenation catalyzed by a cobalt-based system: an unexpected formate anion-assisted deprotonation mechanism. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02012k] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An unexpected formate anion-assisted deprotonation mechanism is unfolded by a DFT study of CO2 hydrogenation catalyzed by a cobalt-based system.
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Affiliation(s)
- Zhihan Zhang
- School of Materials Science and Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Yinwu Li
- School of Materials Science and Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Cheng Hou
- School of Materials Science and Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Cunyuan Zhao
- School of Materials Science and Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
| | - Zhuofeng Ke
- School of Materials Science and Engineering
- PCFM Lab
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510275
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43
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Jiang YY, Zhu L, Liang Y, Man X, Bi S. Mechanism of Amide Bond Formation from Carboxylic Acids and Amines Promoted by 9-Silafluorenyl Dichloride Derivatives. J Org Chem 2017; 82:9087-9096. [DOI: 10.1021/acs.joc.7b01637] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuan-Ye Jiang
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Ling Zhu
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Yujie Liang
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Xiaoping Man
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical
Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
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44
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Jiang YY, Zhu L, Man X, Liang Y, Bi S. Mechanism of trifluoroacetic-acid-promoted N-to-S acyl transfer of enamides. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.099] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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45
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Lv X, Lu G, Wang ZQ, Xu ZN, Guo GC. Computational Evidence for Lewis Base-Promoted CO2 Hydrogenation to Formic Acid on Gold Surfaces. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00277] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xiangying Lv
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
- Key
Laboratory for Yellow River and Huai River Water Environment and Pollution
Control, Ministry of Education, Henan Key Laboratory for Environmental
Pollution Control, School of Environment, Henan Normal University, Xinxiang, Henan 453007, People’s Republic of China
| | - Gang Lu
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
| | - Zhi-Qiao Wang
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
| | - Zhong-Ning Xu
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
| | - Guo-Cong Guo
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research
on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People’s Republic of China
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46
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Exploring Promising Catalysts for Chemical Hydrogen Storage in Ammonia Borane: A Density Functional Theory Study. Catalysts 2017. [DOI: 10.3390/catal7050140] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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47
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Trincado M, Sinha V, Rodriguez-Lugo RE, Pribanic B, de Bruin B, Grützmacher H. Homogeneously catalysed conversion of aqueous formaldehyde to H 2 and carbonate. Nat Commun 2017; 8:14990. [PMID: 28452367 PMCID: PMC5414358 DOI: 10.1038/ncomms14990] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 02/20/2017] [Indexed: 01/28/2023] Open
Abstract
Small organic molecules provide a promising solution for the requirement to store large amounts of hydrogen in a future hydrogen-based energy system. Herein, we report that diolefin-ruthenium complexes containing the chemically and redox non-innocent ligand trop2dad catalyse the production of H2 from formaldehyde and water in the presence of a base. The process involves the catalytic conversion to carbonate salt using aqueous solutions and is the fastest reported for acceptorless formalin dehydrogenation to date. A mechanism supported by density functional theory calculations postulates protonation of a ruthenium hydride to form a low-valent active species, the reversible uptake of dihydrogen by the ligand and active participation of both the ligand and the metal in substrate activation and dihydrogen bond formation.
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Affiliation(s)
- M Trincado
- Department of Chemistry and Applied Biosciences ETH Zürich, Laboratory of Inorganic Chemistry, Wolfgang Pauli Str. 10, Zürich CH-8093, Switzerland
| | - Vivek Sinha
- Supramolecular and Homogeneous Catalysis Group, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, Amsterdam 1098 XH, The Netherlands
| | - Rafael E Rodriguez-Lugo
- Labotatorio de Química Bioinorgánica, Centro de Química, Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas 1020-A, Venezuela
| | - Bruno Pribanic
- Department of Chemistry and Applied Biosciences ETH Zürich, Laboratory of Inorganic Chemistry, Wolfgang Pauli Str. 10, Zürich CH-8093, Switzerland
| | - Bas de Bruin
- Supramolecular and Homogeneous Catalysis Group, van 't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, Amsterdam 1098 XH, The Netherlands
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences ETH Zürich, Laboratory of Inorganic Chemistry, Wolfgang Pauli Str. 10, Zürich CH-8093, Switzerland
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48
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Jiang YY, Wang C, Liang Y, Man X, Bi S, Fu Y. A Ligand-Dissociation-Involved Mechanism in Amide Formation of Monofluoroacylboronates with Hydroxylamines. J Org Chem 2017; 82:1064-1072. [DOI: 10.1021/acs.joc.6b02642] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Yuan-Ye Jiang
- School
of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Chen Wang
- Zhejiang
Key Laboratory of Alternative Technologies for Fine Chemicals Process, Shaoxing University, Shaoxing 312000, People’s Republic of China
| | - Yujie Liang
- School
of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Xiaoping Man
- School
of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Siwei Bi
- School
of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, People’s Republic of China
| | - Yao Fu
- Collaborative
Innovation Center of Chemistry for Energy Materials, CAS Key Laboratory
of Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei 230026, People’s Republic of China
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49
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Crabtree RH. Homogeneous Transition Metal Catalysis of Acceptorless Dehydrogenative Alcohol Oxidation: Applications in Hydrogen Storage and to Heterocycle Synthesis. Chem Rev 2017; 117:9228-9246. [DOI: 10.1021/acs.chemrev.6b00556] [Citation(s) in RCA: 346] [Impact Index Per Article: 49.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Robert H. Crabtree
- Department of Chemistry & Energy Sciences Institute, Yale University, P.O. Box 208107, New Haven, Connecticut 06520-8107, United States
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50
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Lee K, Donahue CM, Daly SR. Triaminoborane-bridged diphosphine complexes with Ni and Pd: coordination chemistry, structures, and ligand-centered reactivity. Dalton Trans 2017; 46:9394-9406. [DOI: 10.1039/c7dt02144e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis, coordination chemistry, and reactivity of two diphosphines containing the cyclic triaminoborane 1,8,10,9-triazaboradecalin (TBD) are described.
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Affiliation(s)
- Kyounghoon Lee
- The University of Iowa
- Department of Chemistry
- Iowa City
- USA
| | | | - Scott R. Daly
- The University of Iowa
- Department of Chemistry
- Iowa City
- USA
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