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Pu Z, Fu X, Qin J, Yang H, Shuai M, Li F. Spectroscopic and Theoretical Insights into H 2 Activation on Uranium Monoxide: Homolytic H 2 Cleavage Mediated by Intermediate OU(η 2-H 2). Inorg Chem 2024; 63:13304-13310. [PMID: 38986152 DOI: 10.1021/acs.inorgchem.4c01059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
Elucidating molecular-level interactions between dihydrogen (H2) and uranium oxides reveals fundamental insights into the intrinsic H2 activation mechanisms underlying processes such as heterogeneous catalysis over uranium oxides and corrosion of uranium induced by H2. Herein, the reactions of H2 with uranium monoxide (UO) molecules have been investigated via a combination of matrix-isolation infrared spectroscopy and quantum chemical calculations. A side-on bonded H2 complex, OU(η2-H2), is identified at 3733.7 and 800.3 cm-1. This species is regarded as a crucial intermediate along H2 activation pathways. Bonding analysis reveals cooperative U(π5f/6d) → H2(σ*) π// backdonation and U ← H2(σ) σ donation in OU(η2-H2) that facilitate the activation of the H2 moiety. Upon λ > 550 nm photoirradiation, OU(η2-H2) isomerizes into H2UO, indicating the homolytic H2 cleavage on UO. Mechanistic details of H2 adsorption and dissociation on UO molecules have been further elucidated.
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Affiliation(s)
- Zhen Pu
- Institute of Materials, China Academy of Engineering Physics, Mailbox No.9-21, Huafengxincun, Jiangyou, Sichuan 621908, PR China
| | - Xiaoguo Fu
- Institute of Materials, China Academy of Engineering Physics, Mailbox No.9-21, Huafengxincun, Jiangyou, Sichuan 621908, PR China
| | - Jianwei Qin
- Institute of Materials, China Academy of Engineering Physics, Mailbox No.9-21, Huafengxincun, Jiangyou, Sichuan 621908, PR China
| | - Hu Yang
- School of Materials and Chemistry, Southwest University of Science and Technology, 59 Middle Section of Qinglong Road, Mianyang 621010, PR China
| | - Maobing Shuai
- Institute of Materials, China Academy of Engineering Physics, Mailbox No.9-21, Huafengxincun, Jiangyou, Sichuan 621908, PR China
| | - Fang Li
- School of Materials and Chemistry, Southwest University of Science and Technology, 59 Middle Section of Qinglong Road, Mianyang 621010, PR China
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2
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Cheng J, Li T, Wang Y, Ati AH, Sun Q. The relationship between activated H2 bond length and adsorption distance on MXenes identified with graph neural network and resonating valence bond theory. J Chem Phys 2023; 159:191101. [PMID: 37965996 DOI: 10.1063/5.0169430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/14/2023] [Indexed: 11/16/2023] Open
Abstract
Motivated by the recent experimental study on hydrogen storage in MXene multilayers [Liu et al., Nat. Nanotechnol. 16, 331 (2021)], for the first time we propose a workflow to computationally screen 23 857 compounds of MXene to explore the general relation between the activated H2 bond length and adsorption distance. By using density functional theory we generate a dataset to investigate the adsorption geometries of hydrogen on MXenes, based on which we train physics-informed atomistic line graph neural networks (ALIGNNs) to predict adsorption parameters. To fit the results, we further derived a formula that quantitatively reproduces the dependence of H2 bond length on the adsorption distance from MXenes within the framework of Pauling's resonating valence bond theory, revealing the impact of transition metal's ligancy and valence on activating dihydrogen in H2 storage.
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Affiliation(s)
- Jiewei Cheng
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Tingwei Li
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Yongyi Wang
- College of Engineering, Peking University, Beijing 100871, China
| | - Ahmed H Ati
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Qiang Sun
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Center for Applied Physics and Technology, Peking University, Beijing 100871, China
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3
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A hassle-free and cost-effective transfer hydrogenation strategy for the chemoselective reduction of arylnitriles to primary amines through in situ-generated nickelII dihydride intermediate in water. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131926] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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4
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Liu K, Qin R, Zheng N. Insights into the Interfacial Effects in Heterogeneous Metal Nanocatalysts toward Selective Hydrogenation. J Am Chem Soc 2021; 143:4483-4499. [PMID: 33724821 DOI: 10.1021/jacs.0c13185] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Heterogeneous metal catalysts are distinguished by their structure inhomogeneity and complexity. The chameleonic nature of heterogeneous metal catalysts have prevented us from deeply understanding their catalytic mechanisms at the molecular level and thus developing industrial catalysts with perfect catalytic selectivity toward desired products. This Perspective aims to summarize recent research advances in deciphering complicated interfacial effects in heterogeneous hydrogenation metal nanocatalysts toward the design of practical heterogeneous catalysts with clear catalytic mechanism and thus nearly perfect selectivity. The molecular insights on how the three key components (i.e., catalytic metal, support, and ligand modifier) of a heterogeneous metal nanocatalyst induce effective interfaces determining the hydrogenation activity and selectivity are provided. The interfaces influence not only the H2 activation pathway but also the interaction of substrates to be hydrogenated with catalytic metal surface and thus the hydrogen transfer process. As for alloy nanocatalysts, together with the electronic and geometric ensemble effects, spillover hydrogenation occurring on catalytically "inert" metal by utilizing hydrogen atom spillover from active metal is highlighted. The metal-support interface effects are then discussed with emphasis on the molecular involvement of ligands located at the metal-support interface as well as cationic species from the support in hydrogenation. The mechanisms of how organic modifiers, with the ability to induce both 3D steric and electronic effects, on metal nanocatalysts manipulate the hydrogenation pathways are demonstrated. A brief summary is finally provided together with a perspective on the development of enzyme-like heterogeneous hydrogenation metal catalysts.
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Affiliation(s)
- Kunlong Liu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ruixuan Qin
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Nanfeng Zheng
- State Key Laboratory for Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and National & Local Joint Engineering Research Center for Preparation Technology of Nanomaterials, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.,Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen 361005, China
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5
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Kim K, Kang DW, Choi Y, Kim W, Lee H, Lee JW. Improved H 2 utilization by Pd doping in cobalt catalysts for reductive amination of polypropylene glycol. RSC Adv 2020; 10:45159-45169. [PMID: 35516265 PMCID: PMC9058643 DOI: 10.1039/d0ra10033a] [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: 11/27/2020] [Accepted: 12/11/2020] [Indexed: 11/21/2022] Open
Abstract
Cobalt based catalysts having enhanced H2 dissociation and desorption were synthesized by inserting a trace amount of palladium. These catalysts were used for the reductive amination of polypropylene glycol (PPG) to polyetheramine (PEA). The catalytic activity toward PEA was significantly increased by incorporating an extremely low content of palladium (around 0.01 wt%) into cobalt based catalysts. The Pd inserted cobalt catalysts promoted reduction of cobalt oxide to cobalt metal and inhibited formation of cobalt nitride in the reductive amination. The Pd inserted cobalt catalysts not only enhanced hydrogen dissociation but also accelerated hydrogen desorption by increasing the electron density of cobalt through interaction between cobalt and palladium. These play a critical role in reducing cobalt oxide or cobalt nitride to cobalt metal as an active site for the reductive amination. Thus, the Pd inserted cobalt catalysts provide improved catalytic performance toward PEA production by maintaining the cobalt metal state. Addition of Pd into Co helped remarkably to reduce cobalt oxide and nitride to cobalt metal by enhanced hydrogen dissociation and desorption.![]()
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Affiliation(s)
- Kyungjun Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea .,LOTTE CHEMICAL R&D Center Daejeon 34110 Republic of Korea
| | - Dong Woo Kang
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Youngheon Choi
- LOTTE CHEMICAL R&D Center Daejeon 34110 Republic of Korea
| | - Wanggyu Kim
- LOTTE CHEMICAL R&D Center Daejeon 34110 Republic of Korea
| | - Hyunjoo Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | - Jae W Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
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Ghosh B, Bharadwaz P, Sarkar N, Phukan AK. Activation of small molecules by cyclic alkyl amino silylenes (CAASis) and germylenes (CAAGes): a theoretical study. Dalton Trans 2020; 49:13760-13772. [PMID: 32996965 DOI: 10.1039/d0dt03043k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Quantum chemical calculations have been carried out on a series of skeletally modified cyclic alkyl amino silylenes (CAASis) and germylenes (CAAGes) to understand their ligand properties and reactivity towards the activation of a variety of small molecules. The installation of boron or silicon atoms into the ring framework of these silylenes/germylenes led to a dramatic increase in their σ-basicity while the incorporation of ylidic moieties resulted in a sharp reduction of their π-acidity although it did help in increasing the electron donation ability. The calculated values of energy barriers for the activation of H-H, N-H, C-H and Si-H bonds by many of the cyclic silylenes considered here are found to be comparable to those for experimentally evaluated systems, indicating the potential of these computationally designed molecules in small molecule activation and calling for synthetic efforts towards their isolation. Furthermore, activations employing CAAGes are found to be more demanding than those with CAASis which may be attributed to the significantly lower Lewis basicity of the former than the latter.
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Affiliation(s)
- Bijoy Ghosh
- Department of Chemical Sciences, Tezpur University, Napaam 784028, Assam, India.
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Ullah SS, Kashyap C, Rohman SS, Guha AK. Hydrogen activation by isomeric aromatic phosphabenzene: A theoretical study. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.06.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Doubková S, Marek A. Frustrated Lewis pairs: A real alternative to deuteride/tritide reductions. J Labelled Comp Radiopharm 2019; 62:729-742. [PMID: 31170318 DOI: 10.1002/jlcr.3774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/17/2019] [Accepted: 05/17/2019] [Indexed: 11/11/2022]
Abstract
Deuterium- and tritium-labeled compounds play a principal role in tracing of biologically active molecules in complicated biochemical systems. The state-of-the-art techniques using noble metal catalysts or strong reducing agents often suffers from low functional group tolerances, poor selectivity, tricky or multistep synthesis of reagents, and low specific activity of the labeled product. Herein, we demonstrate a mild and nonmetallic technique of deuteration and tritiation of polarized double bonds, such as carbonyl compounds, yielding labeled alcohols of high specific activities. This one-pot synthesis uses carrier-free hydrogen gas in situ activated by a freshly prepared frustrated Lewis pair, generating reducing reagents. This labeling strategy shows better selectivity and functional group tolerances compared with current reductive methods. Reported is an example of the selective reduction of the aldehyde moiety of 3-acetylbenzaldehyde. What makes this technology groundbreaking is its mildness, selectivity, and generation of limited amount of radioactive waste as almost no byproducts were generated after use of (B(C6 F5 )3 3 H)(3 HTMP) reducing reagent. Radiochemical purity of desired 3 H-labeled product in a crude reaction mixture was determined of over 94%. This work provides, to the community of radiochemists, a practical protocol for frustrated Lewis pairs (FLP)-assisted deuterium/tritium labeling technology.
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Affiliation(s)
- Sabina Doubková
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague, Czech Republic
| | - Aleš Marek
- Institute of Organic Chemistry and Biochemistry, The Czech Academy of Sciences, Prague, Czech Republic
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9
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Wang Q, Kong X, Han H, Sang G, Zhang G, Gao T. The performance of adsorption, dissociation and diffusion mechanism of hydrogen on the Ti-doped ZrCo(110) surface. Phys Chem Chem Phys 2019; 21:12597-12605. [PMID: 31150026 DOI: 10.1039/c9cp02491c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Compared with pristine ZrCo(110), the adsorption, dissociation, and successive diffusion of hydrogen on the Ti-decorated ZrCo(110) have been investigated based on first-principles calculation. For the purpose of having fast absorption kinetics, both activation processes need to overcome small energy barriers. The adsorption energies of molecular as well as atomic hydrogen on the Ti-decorated ZrCo(110) surface were calculated using first-principles calculations with the periodic density functional theory (DFT). The H2 molecule on ZrCo(110) and Ti-doped ZrCo(110) surfaces could be spontaneously partially dissociated due to the interaction with the substrate surfaces, producing H atoms strongly chemisorbed to the hollow sites. The H2 dissociation energy barrier and the H diffusion barrier were also determined. Our results show that the activation energy for H2 dissociation on the decorated surface (0.052 eV) is much smaller than that of the pure surface (0.524 eV), elucidating that the activation condition of H2 on the pure ZrCo(110) is more severe than that on the Ti-doped surface. Particularly, Ti-decoration facilitates the H2 dissociation. Moreover, the re-desorption performance of the two dissociated H atoms is improved by lowering the energetic barrier from 1.798 eV (on the pure surface) to 1.315 eV (on the decorated surface). The calculations also reveal that decorating the surface with Ti eliminates the barrier for the into-bulk penetration of a hydrogen atom. Based on the local density of states, the Bader charge and differential charge density, as well as the influence of the Ti atom on topological properties were analyzed. Theoretical results presented in this study are generally in well accordance with the available theoretical and experimental data.
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Affiliation(s)
- Qingqing Wang
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu, 610064, China.
| | - Xianggang Kong
- College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu 610225, China
| | - Huilei Han
- College of Mathematics, Sichuan University, Chengdu, 610064, China
| | - Ge Sang
- Science and Technology on Surface Physics and Chemistry Laboratory, P. O. Box 9071-35, Jiangyou 621907, China
| | - Guanghui Zhang
- Science and Technology on Surface Physics and Chemistry Laboratory, P. O. Box 9071-35, Jiangyou 621907, China
| | - Tao Gao
- Institute of Atomic and Molecular Physics, Sichuan University, Chengdu, 610064, China.
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10
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Li W, Li C, Lyu Y. A computational mechanistic insight into H2 activation and CO2 reduction over β-Diketiminato-ligated group 13 metal complexes. J Catal 2019. [DOI: 10.1016/j.jcat.2019.03.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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11
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Bharadwaz P, Chetia P, Phukan AK. Electronic and Ligand Properties of Skeletally Substituted Cyclic (Alkyl)(Amino)Carbenes (CAACs) and Their Reactivity towards Small Molecule Activation: A Theoretical Study. Chemistry 2017; 23:9926-9936. [DOI: 10.1002/chem.201701645] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Priyam Bharadwaz
- Department of Chemical Sciences; Tezpur University, Napam; 784 028 Assam India
| | - Pubali Chetia
- Department of Chemical Sciences; Tezpur University, Napam; 784 028 Assam India
| | - Ashwini K. Phukan
- Department of Chemical Sciences; Tezpur University, Napam; 784 028 Assam India
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12
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Cammarota RC, Clouston LJ, Lu CC. Leveraging molecular metal–support interactions for H2 and N2 activation. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.06.014] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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13
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Bhattacharjee R, Nijamudheen A, Karmakar S, Datta A. Strain Control: Reversible H2 Activation and H2/D2 Exchange in Pt Complexes. Inorg Chem 2016; 55:3023-9. [PMID: 26958700 DOI: 10.1021/acs.inorgchem.5b02904] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rameswar Bhattacharjee
- Department
of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur 700032, West Bengal, India
| | - Abdulrahiman Nijamudheen
- Department
of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur 700032, West Bengal, India
| | - Sharmistha Karmakar
- Department
of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur 700032, West Bengal, India
| | - Ayan Datta
- Department
of Spectroscopy, Indian Association for the Cultivation of Science, Jadavpur 700032, West Bengal, India
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14
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Zhang X, Cao Z. Insight into the reaction mechanisms for oxidative addition of strong σ bonds to an Al(i) center. Dalton Trans 2016; 45:10355-65. [DOI: 10.1039/c6dt01154c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The oxidative additions of σ X–H bonds to an Al(i) center follow different mechanisms depending on their bonding features and local structural environments.
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Affiliation(s)
- Xiangfei Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry
- and College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 360015
| | - Zexing Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces
- Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry
- and College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 360015
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15
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Grabowski SJ. Cleavage of hydrogen by activation at a single non-metal centre - towards new hydrogen storage materials. Phys Chem Chem Phys 2015; 17:13539-46. [PMID: 25939477 DOI: 10.1039/c5cp00219b] [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]
Abstract
Molecular surfaces of non-metal species are often characterized by both positive and negative regions of electrostatic potential (EP) at a non-metal centre. This centre may activate molecular hydrogen which further leads to the addition reaction. The positive EP regions at the non-metal centres correspond to σ-holes; the latter sites are enhanced by electronegative substituents. This is why the following simple moieties; PFH2, SFH, AsFH2, SeFH, BrF3, PF(CH3)2 and AsF(CH3)2, were chosen here to analyze the H2 activation and its subsequent splitting at the P, As, S, Se and Br centres. Also the reverse H-H bond reforming process is analyzed. MP2/aug-cc-pVTZ calculations were performed for systems corresponding to different stages of these processes. The sulphur centre in the SFH moiety is analyzed in detail since the potential barrier height for the addition reaction for this species is the lowest of the moieties analyzed here. The results of calculations show that the SFH + H2 → SFH3 reaction in the gas phase is endothermic but it is exothermic in polar solvents.
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Affiliation(s)
- Sławomir J Grabowski
- Faculty of Chemistry, University of the Basque Country and Donostia, International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Spain
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16
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Tsipis AC, Gkarmpounis DN. The hydrogen storage capacity of coinage metalated benzenes studied by DFT. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1064906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Athanassios C. Tsipis
- Laboratory of Inorganic and General Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
| | - Dimitrios N. Gkarmpounis
- Laboratory of Inorganic and General Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Greece
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18
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Liu Y, Zou J, Zeng X, Ding W. Study on hydrogen storage properties of Mg–X (X = Fe, Co, V) nano-composites co-precipitated from solution. RSC Adv 2015. [DOI: 10.1039/c4ra12977f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A systematic investigation has been performed on the hydrogen sorption properties of the Mg–X (X = Fe, Co, V) nano-composites co-precipitated from solution through an adapted Rieke method.
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Affiliation(s)
- Yana Liu
- School of Materials Science and Engineering
- National Engineering Research Center of Light Alloys Net Forming
- State Key Laboratory of Metal Matrix Composite
- Shanghai Engineering Research Center of Mg Materials and Applications
- Shanghai Jiao Tong University
| | - Jianxin Zou
- School of Materials Science and Engineering
- National Engineering Research Center of Light Alloys Net Forming
- State Key Laboratory of Metal Matrix Composite
- Shanghai Engineering Research Center of Mg Materials and Applications
- Shanghai Jiao Tong University
| | - Xiaoqin Zeng
- School of Materials Science and Engineering
- National Engineering Research Center of Light Alloys Net Forming
- State Key Laboratory of Metal Matrix Composite
- Shanghai Engineering Research Center of Mg Materials and Applications
- Shanghai Jiao Tong University
| | - Wenjiang Ding
- School of Materials Science and Engineering
- National Engineering Research Center of Light Alloys Net Forming
- State Key Laboratory of Metal Matrix Composite
- Shanghai Engineering Research Center of Mg Materials and Applications
- Shanghai Jiao Tong University
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19
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Dahcheh F, Martin D, Stephan DW, Bertrand G. Synthesis and Reactivity of a CAAC-Aminoborylene Adduct: A Hetero-Allene or an Organoboron Isoelectronic with Singlet Carbenes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408371] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Dahcheh F, Martin D, Stephan DW, Bertrand G. Synthesis and reactivity of a CAAC-aminoborylene adduct: a hetero-allene or an organoboron isoelectronic with singlet carbenes. Angew Chem Int Ed Engl 2014; 53:13159-63. [PMID: 25267591 DOI: 10.1002/anie.201408371] [Citation(s) in RCA: 234] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Indexed: 11/08/2022]
Abstract
A one-electron reduction of a cyclic (alkyl)(amino)carbene (CAAC)-bis(trimethylsilyl)aminodichloroborane adduct leads to a stable aminoboryl radical. A second one-electron reduction gives rise to a CAAC-aminoborylene adduct, which features an allenic structure. However, in manner similar to that of stable electrophilic singlet carbenes, this compound activates small molecules, such as CO and H2.
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Affiliation(s)
- Fatme Dahcheh
- Joint UCSD-CNRS Research Chemistry Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA 92093-0343 (USA); Department of Chemistry, University of Toronto, 80 St. George St. Toronto, ON M5S 3H6 (Canada)
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21
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Ogo S. H2and O2Activation-A Remarkable Insight into Hydrogenase. CHEM REC 2014; 14:397-409. [DOI: 10.1002/tcr.201402010] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Indexed: 12/15/2022]
Affiliation(s)
- Seiji Ogo
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER); Kyushu University; 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan
- Department of Chemistry and Biochemistry; Graduate School of Engineering; Kyushu University; 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan
- Core Research for Evolutional Science and Technology (CREST); Japan Science and Technology Agency (JST); Kawaguchi Center Building; 4-1-8 Honcho Kawaguchi-shi Saitama 332-0012 Japan
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22
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Calvo B, Macías R, Polo V, Artigas MJ, Lahoz FJ, Oro LA. Heterolytic H2 activation on a carbene-ligated rhodathiaborane promoted by isonido-nido cage opening. Chem Commun (Camb) 2013; 49:9863-5. [PMID: 24037230 DOI: 10.1039/c3cc45880f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new mechanism of H2 activation is reported to occur on a carbene-ligated rhodathiaborane that features metal-thiaborane bifunctional synergistic effects. The key is the creation of vacant coordination sites by an isonido-nido structural transformation leading to the heterolytic H-H bond splitting.
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Affiliation(s)
- Beatriz Calvo
- ISQCH, Universidad de Zaragoza-CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain.
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23
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Ho MH, Raugei S, Rousseau R, Dupuis M, Bullock RM. Evaluation of the Role of Water in the H2 Bond Formation by Ni(II)-Based Electrocatalysts. J Chem Theory Comput 2013; 9:3505-14. [DOI: 10.1021/ct400396s] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ming-Hsun Ho
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
| | - Simone Raugei
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
| | - Roger Rousseau
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
| | - Michel Dupuis
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
| | - R. Morris Bullock
- Center for Molecular Electrocatalysis,
Pacific Northwest National Laboratory, P.O. Box 999, K1-83, Richland,
Washington 99352, United States
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24
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Devarajan D, Doubleday CE, Ess DH. Theory of divalent main group H2 activation: electronics and quasiclassical trajectories. Inorg Chem 2013; 52:8820-33. [PMID: 23837687 DOI: 10.1021/ic4010399] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Density functional theory (DFT), absolutely localized molecular orbital (ALMO) analysis, and quasiclassical trajectories (QCTs) were used to study the structure, barrier heights, thermodynamics, electronic properties, and dynamics of dihydrogen (H2) activation by singlet divalent main group compounds (ER2; E = C, Si, Ge). ALMO energy and charge decomposition calculations reveal that in the transition state CR2 acts as an ambiphile toward H2 because of equal forward-bonding and back-bonding orbital stabilization while SiR2 and GeR2 act as nucleophiles with dominant orbital energy stabilization arising from ER2 to H2 donation. Frontier molecular orbital (FMO) energy gaps do not provide a reasonable estimate of energy stabilization gained between the ER2 and H2 in the transition state or an accurate description of the nucleophilic versus electrophilic character because of electron repulsion and orbital overlap influences that are neglected. In CR2 transition states, forward-bonding and back-bonding are maximized in the nonleast motion geometry. In contrast, SiR2/GeR2 transition states have side-on geometries to avoid electron-electron repulsion. Electron repulsion, rather than orbital interactions, also determines the relative barrier heights of CR2 versus SiR2/GeR2 reactions. Examination of barrier heights and reaction energies shows a clear kinetic-thermodynamic relationship for ER2 activation of H2. A computational survey of R groups on ER2 divalent atom centers was performed to explore the possibility for H2 activation to occur with a low barrier and thermodynamically reversible. QCTs show that dihydrogen approach and reaction with CR2 may involve geometries significantly different than the static transition-state structure. In contrast, trajectories for dihydrogen addition to SiR2 involve geometries close to the side-on approach suggested by the static transition-state structure. QCTs also demonstrate that addition of H2 to CR2 and SiR2 is dynamically concerted with the average time gap of bond formation between E-H bonds of approximately 11 and 21 fs, respectively.
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Affiliation(s)
- Deepa Devarajan
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
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25
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Hydrogen Activation by Frustrated Lewis Pairs: Insights from Computational Studies. Top Curr Chem (Cham) 2013; 332:157-211. [DOI: 10.1007/128_2012_399] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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26
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Guo Y, Li W, Yan J, Moosa B, Amad M, Werth CJ, Khashab NM. Fullerene-Catalyzed Reduction of Azo Derivatives in Water under UV Irradiation. Chem Asian J 2012; 7:2842-7. [DOI: 10.1002/asia.201200701] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 08/23/2012] [Indexed: 11/08/2022]
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27
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Zhao L, Huang F, Lu G, Wang ZX, Schleyer PVR. Why the Mechanisms of Digermyne and Distannyne Reactions with H2 Differ So Greatly. J Am Chem Soc 2012; 134:8856-68. [DOI: 10.1021/ja300111q] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- LiLi Zhao
- College of Chemistry and Chemical
Engineering, Graduate University of the Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Fang Huang
- College of Chemistry and Chemical
Engineering, Graduate University of the Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Gang Lu
- College of Chemistry and Chemical
Engineering, Graduate University of the Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhi-Xiang Wang
- College of Chemistry and Chemical
Engineering, Graduate University of the Chinese Academy of Sciences, Beijing 100049, P. R. China
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28
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Computational Design of Metal-Free Molecules for Activation of Small Molecules, Hydrogenation, and Hydroamination. Top Curr Chem (Cham) 2012; 332:231-66. [DOI: 10.1007/128_2012_385] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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29
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KUANG XIANGJUN, WANG XINQIANG, LIU GAOBIN. A density functional study on the adsorption of hydrogen molecule onto small copper clusters. J CHEM SCI 2011. [DOI: 10.1007/s12039-011-0130-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Zhou M, Wang C, Zhuang J, Zhao Y, Zheng X. Matrix Isolation Spectroscopic and Theoretical Study of Dihydrogen Activation by Group V Metal Dioxide Molecules. J Phys Chem A 2010; 115:39-46. [DOI: 10.1021/jp109498b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mingfei Zhou
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China, and Department of Chemistry, Zhejiang Sci-Tech University, Hanzhou, China
| | - Caixia Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China, and Department of Chemistry, Zhejiang Sci-Tech University, Hanzhou, China
| | - Jia Zhuang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China, and Department of Chemistry, Zhejiang Sci-Tech University, Hanzhou, China
| | - Yanying Zhao
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China, and Department of Chemistry, Zhejiang Sci-Tech University, Hanzhou, China
| | - Xuming Zheng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, China, and Department of Chemistry, Zhejiang Sci-Tech University, Hanzhou, China
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31
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Zhou M, Wang C, Li ZH, Zhuang J, Zhao Y, Zheng X, Fan K. Spontaneous Dihydrogen Activation by Neutral TaO4 Complex at Cryogenic Temperatures. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201003001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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32
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Zhou M, Wang C, Li ZH, Zhuang J, Zhao Y, Zheng X, Fan K. Spontaneous Dihydrogen Activation by Neutral TaO4 Complex at Cryogenic Temperatures. Angew Chem Int Ed Engl 2010; 49:7757-61. [DOI: 10.1002/anie.201003001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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33
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Li J, Kathmann SM, Hu HS, Schenter GK, Autrey T, Gutowski M. Theoretical Investigations on the Formation and Dehydrogenation Reaction Pathways of H(NH2BH2)nH (n = 1−4) Oligomers: Importance of Dihydrogen Interactions. Inorg Chem 2010; 49:7710-20. [DOI: 10.1021/ic100418a] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jun Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
- W. R. Wiley Environmental Molecular Sciences Laboratory and Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Shawn M. Kathmann
- W. R. Wiley Environmental Molecular Sciences Laboratory and Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Han-Shi Hu
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Gregory K. Schenter
- W. R. Wiley Environmental Molecular Sciences Laboratory and Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Tom Autrey
- W. R. Wiley Environmental Molecular Sciences Laboratory and Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352
| | - Maciej Gutowski
- W. R. Wiley Environmental Molecular Sciences Laboratory and Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99352
- Chemistry-School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K
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34
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Li H, Zhao L, Lu G, Mo Y, Wang ZX. Insight into the relative reactivity of “Frustrated Lewis pairs” and stable carbenes in activating H2 and CH4: A comparative computational study. Phys Chem Chem Phys 2010; 12:5268-75. [DOI: 10.1039/b924586c] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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35
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Zhao L, Li H, Lu G, Wang ZX. Computational design of metal-free catalysts for catalytic hydrogenation of imines. Dalton Trans 2010; 39:4038-47. [DOI: 10.1039/b921941b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Kim H, Rhee Y. Dispersion-Oriented Soft Interaction in a Frustrated Lewis Pair and the Entropic Encouragement Effect in its Formation. Chemistry 2009; 15:13348-55. [DOI: 10.1002/chem.200902322] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Moc J. What is the energy barrier for H2 dissociation on Group 13 sub-nanosized metal cluster to form dihydride? Density functional dependence study. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Sumerin V, Schulz F, Nieger M, Atsumi M, Wang C, Leskelä M, Pyykkö P, Repo T, Rieger B. Experimental and theoretical treatment of hydrogen splitting and storage in boron–nitrogen systems. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.03.023] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Rokob TA, Hamza A, Pápai I. Rationalizing the Reactivity of Frustrated Lewis Pairs: Thermodynamics of H2 Activation and the Role of Acid−Base Properties. J Am Chem Soc 2009; 131:10701-10. [DOI: 10.1021/ja903878z] [Citation(s) in RCA: 269] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tibor András Rokob
- Chemical Research Center of the Hungarian Academy of Sciences, P.O. Box 17, H-1525 Budapest, Hungary
| | - Andrea Hamza
- Chemical Research Center of the Hungarian Academy of Sciences, P.O. Box 17, H-1525 Budapest, Hungary
| | - Imre Pápai
- Chemical Research Center of the Hungarian Academy of Sciences, P.O. Box 17, H-1525 Budapest, Hungary
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41
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Shima S, Thauer RK, Ermler U. Carbon Monoxide as Intrinsic Ligand to Iron in the Active Site of [Fe]-Hydrogenase. METAL-CARBON BONDS IN ENZYMES AND COFACTORS 2009. [DOI: 10.1039/9781847559333-00219] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Structural and spectroscopic studies on [Fe]-hydrogenase revealed an active site mononuclear low spin iron coordinated by the Cys176 sulfur, two CO, and the sp2 hybridized nitrogen of a 2-pyridinol compound with back bonding properties similar to those of cyanide. Thus, [Fe]-hydrogenases are endowed with an iron-ligation pattern related to that found in the active site of [NiFe]- and [FeFe]-hydrogenases although the three hydrogenases and the enzymes involved in their posttranslational maturation have evolved independently and although CO and cyanide ligands are not found in any other metallo-enzymes. Obviously, low-spin iron complexed with thiolate(s), CO, and cyanide or a cyanide functional analogue plays an essential role in H2 activation.
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Affiliation(s)
- Seigo Shima
- Max Planck Institute for Terrestrial Microbiology Karl-von-Frisch-Strasse D-35043 Marburg Germany
| | - Rudolf K. Thauer
- Max Planck Institute for Terrestrial Microbiology Karl-von-Frisch-Strasse D-35043 Marburg Germany
| | - Ulrich Ermler
- Max Planck Institute for Biophysics Max-von-Laue-Strasse 3 D-60438 Frankfurt/Main Germany
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42
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Liu J, Han Y, Ge Q. Effect of Doped Transition Metal on Reversible Hydrogen Release/Uptake from NaAlH4. Chemistry 2009; 15:1685-95. [DOI: 10.1002/chem.200801045] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Rokob TA, Hamza A, Stirling A, Pápai I. On the Mechanism of B(C6F5)3-Catalyzed Direct Hydrogenation of Imines: Inherent and Thermally Induced Frustration. J Am Chem Soc 2009; 131:2029-36. [DOI: 10.1021/ja809125r] [Citation(s) in RCA: 221] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Andrea Hamza
- Chemical Research Center of HAS, P.O. Box 17, H-1525 Budapest, Hungary
| | - András Stirling
- Chemical Research Center of HAS, P.O. Box 17, H-1525 Budapest, Hungary
| | - Imre Pápai
- Chemical Research Center of HAS, P.O. Box 17, H-1525 Budapest, Hungary
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44
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Moc J. Hydrogenation of aluminium hexamer: Ab initio molecular orbital theory and density functional theory study. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.10.033] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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45
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Sumerin V, Schulz F, Atsumi M, Wang C, Nieger M, Leskelä M, Repo T, Pyykkö P, Rieger B. Molecular Tweezers for Hydrogen: Synthesis, Characterization, and Reactivity. J Am Chem Soc 2008; 130:14117-9. [DOI: 10.1021/ja806627s] [Citation(s) in RCA: 333] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Victor Sumerin
- Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland, and WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany
| | - Felix Schulz
- Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland, and WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany
| | - Michiko Atsumi
- Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland, and WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany
| | - Cong Wang
- Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland, and WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany
| | - Martin Nieger
- Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland, and WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany
| | - Markku Leskelä
- Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland, and WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany
| | - Timo Repo
- Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland, and WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany
| | - Pekka Pyykkö
- Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland, and WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany
| | - Bernhard Rieger
- Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland, and WACKER-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany
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Guo Y, Li S. Unusual Concerted Lewis Acid−Lewis Base Mechanism for Hydrogen Activation by a Phosphine−Borane Compound. Inorg Chem 2008; 47:6212-9. [DOI: 10.1021/ic702489s] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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47
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Rokob TA, Hamza A, Stirling A, Soós T, Pápai I. Turning Frustration into Bond Activation: A Theoretical Mechanistic Study on Heterolytic Hydrogen Splitting by Frustrated Lewis Pairs. Angew Chem Int Ed Engl 2008; 47:2435-8. [DOI: 10.1002/anie.200705586] [Citation(s) in RCA: 331] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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48
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Rokob TA, Hamza A, Stirling A, Soós T, Pápai I. Turning Frustration into Bond Activation: A Theoretical Mechanistic Study on Heterolytic Hydrogen Splitting by Frustrated Lewis Pairs. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200705586] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Vergnaud J, Grellier M, Bouhadir G, Vendier L, Sabo-Etienne S, Bourissou D. Synthesis and Reactivity of Ruthenium Arene Complexes Incorporating Novel Ph2PCH2CH2BR2 Ligands. Easy Access to the Four-Membered Ruthenacycle [(p-cymene)RuCl(κC,P-CH2CH2PPh2)]. Organometallics 2008. [DOI: 10.1021/om701139a] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jérôme Vergnaud
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Mary Grellier
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Ghenwa Bouhadir
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Laure Vendier
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Sylviane Sabo-Etienne
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
| | - Didier Bourissou
- Laboratoire de Chimie de Coordination du CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and Laboratoire Hétérochimie Fondamentale et Appliquée (UMR-CNRS 5069), Université Paul Sabatier, 118 route de Narbonne, F-31062 Toulouse Cedex 09, France
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50
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Vogt S, Lyon EJ, Shima S, Thauer RK. The exchange activities of [Fe] hydrogenase (iron-sulfur-cluster-free hydrogenase) from methanogenic archaea in comparison with the exchange activities of [FeFe] and [NiFe] hydrogenases. J Biol Inorg Chem 2008; 13:97-106. [PMID: 17924153 PMCID: PMC2757585 DOI: 10.1007/s00775-007-0302-2] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2007] [Accepted: 09/08/2007] [Indexed: 12/27/2022]
Abstract
[Fe] hydrogenase (iron-sulfur-cluster-free hydrogenase) catalyzes the reversible reduction of methenyltetrahydromethanopterin (methenyl-H4MPT+) with H2 to methylene-H4MPT, a reaction involved in methanogenesis from H2 and CO2 in many methanogenic archaea. The enzyme harbors an iron-containing cofactor, in which a low-spin iron is complexed by a pyridone, two CO and a cysteine sulfur. [Fe] hydrogenase is thus similar to [NiFe] and [FeFe] hydrogenases, in which a low-spin iron carbonyl complex, albeit in a dinuclear metal center, is also involved in H2 activation. Like the [NiFe] and [FeFe] hydrogenases, [Fe] hydrogenase catalyzes an active exchange of H2 with protons of water; however, this activity is dependent on the presence of the hydride-accepting methenyl-H4MPT+. In its absence the exchange activity is only 0.01% of that in its presence. The residual activity has been attributed to the presence of traces of methenyl-H4MPT+ in the enzyme preparations, but it could also reflect a weak binding of H2 to the iron in the absence of methenyl-H4MPT+. To test this we reinvestigated the exchange activity with [Fe] hydrogenase reconstituted from apoprotein heterologously produced in Escherichia coli and highly purified iron-containing cofactor and found that in the absence of added methenyl-H4MPT+ the exchange activity was below the detection limit of the tritium method employed (0.1 nmol min(-1) mg(-1)). The finding reiterates that for H2 activation by [Fe] hydrogenase the presence of the hydride-accepting methenyl-H4MPT+ is essentially required. This differentiates [Fe] hydrogenase from [FeFe] and [NiFe] hydrogenases, which actively catalyze H2/H2O exchange in the absence of exogenous electron acceptors.
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Affiliation(s)
- Sonja Vogt
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Strasse, 35043 Marburg, Germany
| | - Erica J. Lyon
- Bellarmine University, 2001 Newburg Rd, Louisville, KY 40205 USA
| | - Seigo Shima
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Strasse, 35043 Marburg, Germany
| | - Rudolf K. Thauer
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Strasse, 35043 Marburg, Germany
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