1
|
Zhao J, Qi L, Li W, Cheng J, Li Q, Liu S. CH4 activation by PtX+ (X = F, Cl, Br, I). Front Chem 2022; 10:1027465. [PMID: 36226113 PMCID: PMC9548706 DOI: 10.3389/fchem.2022.1027465] [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: 08/25/2022] [Accepted: 09/06/2022] [Indexed: 11/23/2022] Open
Abstract
Reactions of PtX+ (X = F, Cl, Br, I) with methane have been investigated at the density functional theory (DFT) level. These reactions take place more easily along the low-spin potential energy surface. For HX (X = F, Cl, Br, I) elimination, the formal oxidation state of the metal ion appears to be conserved, and the importance of this reaction channel decreases in going as the sequence: X = F, Cl, Br, I. A reversed trend is observed in the loss of H2 for X = F, Cl, Br, while it is not favorable for PtI+ in the loss of either HI or H2. For HX eliminations, the transfer form of H is from proton to atom, last to hydride, and the mechanisms are from PCET to HAT, last to HT for the sequence of X = F, Cl, Br, I. One reason is mainly due to the electronegativity of halogens. Otherwise, the mechanisms of HX eliminations also can be explained by the analysis of Frontier Molecular Orbitals. While for the loss of H2, the transfer of H is in the form of hydride for all the X ligands. Noncovalent interactions analysis also can be explained the reaction mechanisms.
Collapse
Affiliation(s)
| | | | - Wenzuo Li
- *Correspondence: Wenzuo Li, ; Qingzhong Li, ; Shaoli Liu,
| | | | - Qingzhong Li
- *Correspondence: Wenzuo Li, ; Qingzhong Li, ; Shaoli Liu,
| | - Shaoli Liu
- *Correspondence: Wenzuo Li, ; Qingzhong Li, ; Shaoli Liu,
| |
Collapse
|
2
|
Bi T, Zurek E. Electronic Structure and Superconductivity of Compressed Metal Tetrahydrides. Chemistry 2021; 27:14858-14870. [PMID: 34469606 DOI: 10.1002/chem.202102679] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Indexed: 11/10/2022]
Abstract
Tetrahydrides crystallizing in the ThCr2 Si2 structure type have been predicted to become stable for a plethora of metals under pressure, and some have recently been synthesized. Through detailed first-principles investigations we show that the metal atoms within these I 4 / m m m symmetry MH4 compounds may be divalent, trivalent or tetravalent. The valence of the metal atom and its radius govern the bonding and electronic structure of these phases, and their evolution under pressure. The factors important for enhancing superconductivity include a large number of hydrogenic states at the Fermi level, and the presence of quasi-molecular H 2 δ - units whose bonds have been stretched and weakened (but not broken) via electron transfer from the electropositive metal, and via a Kubas-like interaction with the metal. Analysis of the microscopic mechanism of superconductivity in MgH4 , ScH4 and ZrH4 reveals that phonon modes involving a coupled libration and stretch of the H 2 δ - units leading to the formation of more complex hydrogenic motifs are important contributors towards the electron phonon coupling mechanism. In the divalent hydride MgH4 , modes associated with motions of the hydridic hydrogen atoms are also key contributors, and soften substantially at lower pressures.
Collapse
Affiliation(s)
- Tiange Bi
- Department of Chemistry, State University of New York at Buffalo, Buffalo, NY 14260-3000, USA
| | - Eva Zurek
- Department of Chemistry, State University of New York at Buffalo, Buffalo, NY 14260-3000, USA
| |
Collapse
|
3
|
Bai ST, Zhou C, Wu X, Sun R, Sels B. Suppressing Dormant Ru States in the Presence of Conventional Metal Oxides Promotes the Ru-MACHO-BH-Catalyzed Integration of CO 2 Capture and Hydrogenation to Methanol. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02638] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Shao-Tao Bai
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, Heverlee 3001, Belgium
- Guangdong Provincial Key Laboratory of Catalysis and Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, No.1088 Xueyuan Blvd, Nanshan District, Shenzhen 518055, P.R. China
- Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Cheng Zhou
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, Heverlee 3001, Belgium
| | - Xian Wu
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, Heverlee 3001, Belgium
| | - Ruiyan Sun
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, Heverlee 3001, Belgium
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, P.R. China
| | - Bert Sels
- Center for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan 200F, Heverlee 3001, Belgium
| |
Collapse
|
4
|
Affiliation(s)
- Robin N. Perutz
- Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Barbara Procacci
- Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| |
Collapse
|
5
|
Corker EC, Ruiz-Martínez J, Riisager A, Fehrmann R. Mechanistic insights into the oxidative dehydrogenation of amines to nitriles in continuous flow. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00577a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mechanistic investigations including in situ infrared spectroscopy and Hammett investigations of the oxidative dehydrogenation of amine compounds using RuO2/Al2O3 catalysts.
Collapse
Affiliation(s)
- Emily C. Corker
- Centre for Catalysis and Sustainable Chemistry
- Department of Chemistry
- Technical University of Denmark
- Kgs. Lyngby
- Denmark
| | - Javier Ruiz-Martínez
- Group of Inorganic Chemistry and Catalysis
- Department of Chemistry
- Utrecht University
- 3584 CG Utrecht
- The Netherlands
| | - Anders Riisager
- Centre for Catalysis and Sustainable Chemistry
- Department of Chemistry
- Technical University of Denmark
- Kgs. Lyngby
- Denmark
| | - Rasmus Fehrmann
- Centre for Catalysis and Sustainable Chemistry
- Department of Chemistry
- Technical University of Denmark
- Kgs. Lyngby
- Denmark
| |
Collapse
|
6
|
Kozachuk O, Luz I, Llabrés i Xamena FX, Noei H, Kauer M, Albada HB, Bloch ED, Marler B, Wang Y, Muhler M, Fischer RA. Multifunctional, Defect-Engineered Metal-Organic Frameworks with Ruthenium Centers: Sorption and Catalytic Properties. Angew Chem Int Ed Engl 2014; 53:7058-62. [DOI: 10.1002/anie.201311128] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Indexed: 11/10/2022]
|
7
|
Kozachuk O, Luz I, Llabrés i Xamena FX, Noei H, Kauer M, Albada HB, Bloch ED, Marler B, Wang Y, Muhler M, Fischer RA. Multifunktionale, Defekt-manipulierte Metall-organische Gerüste mit Rutheniumzentren: Sorption und katalytische Eigenschaften. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201311128] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
8
|
Low temperature hydrogenation of iron nanoparticles on graphene. Sci Rep 2014; 4:4598. [PMID: 24710406 PMCID: PMC3978499 DOI: 10.1038/srep04598] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 03/07/2014] [Indexed: 11/08/2022] Open
Abstract
Hydrogenation of iron nanoparticles was performed both computationally and experimentally where previously chemically-bonded iron hydride is considered to be unachievable under ordinary conditions. Density functional theory (DFT) calculations predict that hydrogenated iron nanoparticles are stabilized on a single-layer graphene/Cu substrate. Experimentally, iron nanoparticles were deposited onto a graphene/Cu substrate by vacuum deposition. Hydrogenation was done at 1atm of hydrogen gas and under liquid nitrogen. Mass spectrometry peak confirmed the hydrogen release from hydrogenated iron nanoparticles while a scanning transmission electron microscopy is used in order to link a geometrical shape of iron hydride nanoparticles between experimental and theoretical treatments. The hydrogenated iron nanoparticles were successfully synthesized where hydrogenated iron nanoparticles are stable under ordinary conditions.
Collapse
|
9
|
Takahashi K, Isobe S, Ohnuki S. The stabilization of Fe, Ru, and Os clusters upon hydrogenation. RSC Adv 2013. [DOI: 10.1039/c3ra42651c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
|
10
|
Asatryan R, Bozzelli JW, Ruckenstein E. Dihydrogen Catalysis: A Degradation Mechanism for N2-Fixation Intermediates. J Phys Chem A 2012; 116:11618-42. [DOI: 10.1021/jp303692v] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rubik Asatryan
- Department of Chemical and Biological
Engineering, State University of New York, Buffalo, New York 14260, United States
- Department of Chemistry and
Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Joseph W. Bozzelli
- Department of Chemistry and
Environmental Science, New Jersey Institute of Technology, Newark, New Jersey 07102, United States
| | - Eli Ruckenstein
- Department of Chemical and Biological
Engineering, State University of New York, Buffalo, New York 14260, United States
| |
Collapse
|
11
|
Wang X, Andrews L. Tetrahydrometalate species VH(2)(H(2)), NbH(4), and TaH(4): matrix infrared spectra and quantum chemical calculations. J Phys Chem A 2011; 115:14175-83. [PMID: 22017260 DOI: 10.1021/jp2076148] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Laser ablated V, Nb, and Ta atoms react with molecular hydrogen in excess neon at 4 K to give vanadium, niobium, and tantalum dihydrides that further react with H(2) to form VH(2)(H(2)), NbH(4), and TaH(4). The reaction products are identified by deuterium and deuterium hydride isotopic substitution. DFT and CCSD theoretical calculations are used to predict energies, geometries, and vibrational frequencies for these novel metal hydrides complex and molecules. The vanadium dihydride hydrogen complex, VH(2)(H(2)), is identified, while the niobium and tantalum tetrahydrides, NbH(4) and TaH(4,) with D(2d) symmetry structures are confirmed. Reactions of group 5 metal atoms with H(2) condensing in solid hydrogen gave VH(2)(H(2)) and the higher tetrahydride-hydrogen complexes NbH(4)(H(2))(4) and TaH(4)(H(2))(4).
Collapse
Affiliation(s)
- Xuefeng Wang
- Department of Chemistry, Tongji University, Shanghai, China
| | | |
Collapse
|
12
|
Wang Q, Wang X, Andrews L. The HRuCCH, RuCCH2, and Ru-η2-C2H2 Molecules: Infrared Spectra and Density Functional Calculations. J Phys Chem A 2011; 115:12194-200. [DOI: 10.1021/jp207423q] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Qiang Wang
- Department of Chemistry, Tongji University, Shanghai, 200092, China
| | - Xuefeng Wang
- Department of Chemistry, Tongji University, Shanghai, 200092, China
| | - Lester Andrews
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| |
Collapse
|
13
|
Tsoureas N, Nunn J, Bevis T, Haddow MF, Hamilton A, Owen GR. Strong agostic-type interactions in ruthenium benzylidene complexes containing 7-azaindole based scorpionate ligands. Dalton Trans 2011; 40:951-8. [DOI: 10.1039/c0dt01148g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
14
|
YANASE S, OI T. H/D Isotope Effects Accompanying Electrolysis of Water as Studied by Molecular Orbital Calculations. JOURNAL OF COMPUTER CHEMISTRY-JAPAN 2011. [DOI: 10.2477/jccj.h2302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|