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Gutsev GL, Mochena MD, Johnson E, Bauschlicher CW. Dissociative and associative attachment of NO to iron clusters. J Chem Phys 2006; 125:194312. [PMID: 17129108 DOI: 10.1063/1.2378831] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Electronic and geometrical structures of iron clusters with associative (FeNO, Fe2NO, Fe3NO, Fe4NO, Fe5NO, and Fe6NO) and dissociative (OFeN, OFe2N, OFe3N, OFe4N, OFe5N, and OFe6N) attachments of NO, as well as the corresponding singly negatively and positively charged ions, are computed using density functional theory with generalized gradient corrections. Both types of isomers are found to be stable and no spontaneous dissociation was observed during the geometry optimizations. The ground states correspond to dissociative attachment of NO for all iron clusters Fe(n), except for Fe and Fe+. All of the OFe(n)N clusters have ferrimagnetic ground states, except for OFe2N, OFe2N-, OFe4N, and OFe4N-, which prefer the ferromagnetic coupling. In the ferrimagnetic states, the excess spin density at one iron atom couples antiferromagnetically to the excess spin densities of all other iron atoms. Relative to the high-spin Fe(n) ground state, the lowest energy ferrimagnetic state quenches the total magnetic moments of iron clusters by 7, which is to be compared with a reduction in the magnetic moment of one in the lowest energy ferromagnetic states. Dissociation of NO on the iron clusters has a pronounced impact on the energetics of reactions; the Fe(n)NO+CO-->Fe(n)N+CO2 channels are exothermic while the OFe6N+CO--> Fe6N+CO2 channels are nearly thermoneutral.
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Affiliation(s)
- G L Gutsev
- Department of Physics, Florida A&M University, Tallahassee, Florida 32307, USA.
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Hess C, Ozensoy E, Yi CW, Goodman DW. NO Dimer and Dinitrosyl Formation on Pd(111): From Ultra-High-Vacuum to Elevated Pressure Conditions. J Am Chem Soc 2006; 128:2988-94. [PMID: 16506779 DOI: 10.1021/ja057131q] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Using in situ polarization modulation infrared reflection absorption spectroscopy (PM-IRAS) and conventional IRAS techniques, the adsorption of NO on Pd(111) was studied from ultra-high-vacuum (UHV) conditions to 400 mbar. New monomeric and non-monomeric high-coverage NO adsorption states were observed at 400 mbar. Initial NO adsorption at 600 K and subsequent cooling in the presence of 400 mbar NO lead to a new high-coverage monomeric adsorption state. For NO adsorption at room temperature, the formation of NO dimer as well as dinitrosyl states was observed, which upon heating transformed into the high-coverage monomeric adsorption state. In contrast, under UHV conditions, NO dimers were stable only at low temperatures up to 60 K, above which they transformed into a monomeric NO adsorption state with a (2x2)-3NO structure. Our results demonstrate that stable NO dimeric and dinitrosyl species can be formed on Pd(111) at elevated pressure conditions, emphasizing their potential role in catalysis.
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Affiliation(s)
- Christian Hess
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, TX 77842-3012, USA
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Andrews L, Citra A. Infrared spectra and density functional theory calculations on transition metal nitrosyls. Vibrational frequencies of unsaturated transition metal nitrosyls. Chem Rev 2002; 102:885-912. [PMID: 11942782 DOI: 10.1021/cr0000729] [Citation(s) in RCA: 271] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lester Andrews
- University of Virginia, Department of Chemistry, P.O. Box 400319, Charlottesville, VA 22904-4319, USA
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Endou A, Ohashi N, Yoshizawa K, Takami S, Kubo M, Miyamoto A, Broclawik E. Comparative Investigation on the Adsorption Properties of Precious Metal Clusters toward NO: A Density Functional Study. J Phys Chem B 2000. [DOI: 10.1021/jp000035l] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akira Endou
- Department of Materials Chemistry, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai 980-8579, Japan
| | - Nobumoto Ohashi
- Department of Materials Chemistry, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai 980-8579, Japan
| | - Kentaro Yoshizawa
- Department of Materials Chemistry, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai 980-8579, Japan
| | - Seiichi Takami
- Department of Materials Chemistry, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai 980-8579, Japan
| | - Momoji Kubo
- Department of Materials Chemistry, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai 980-8579, Japan
| | - Akira Miyamoto
- Department of Materials Chemistry, Graduate School of Engineering, Tohoku University, Aoba-yama 07, Sendai 980-8579, Japan
| | - Ewa Broclawik
- Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek, 30-239 Cracow, Poland
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Zhou M, Andrews L. Reactions of Laser-Ablated Fe, Co, and Ni with NO: Infrared Spectra and Density Functional Calculations of MNO+ and M(NO)x (M = Fe, Co, x = 1−3; M = Ni, x = 1, 2), and M(NO)x- (M = Co, Ni; x = 1, 2). J Phys Chem A 2000. [DOI: 10.1021/jp993340j] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mingfei Zhou
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319
| | - Lester Andrews
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319
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Lu X, Xu X, Wang N, Zhang Q. Adsorption and Decomposition of NO on Magnesium Oxide: A Quantum Chemical Study. J Phys Chem B 1999. [DOI: 10.1021/jp984387s] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xin Lu
- State Key Laboratory for Physical Chemistry of Solid Surfaces; Institute of Physical Chemistry, Department of Chemistry, Xiamen University, Xiamen 361005, PR China
| | - Xin Xu
- State Key Laboratory for Physical Chemistry of Solid Surfaces; Institute of Physical Chemistry, Department of Chemistry, Xiamen University, Xiamen 361005, PR China
| | - Nanqin Wang
- State Key Laboratory for Physical Chemistry of Solid Surfaces; Institute of Physical Chemistry, Department of Chemistry, Xiamen University, Xiamen 361005, PR China
| | - Qianer Zhang
- State Key Laboratory for Physical Chemistry of Solid Surfaces; Institute of Physical Chemistry, Department of Chemistry, Xiamen University, Xiamen 361005, PR China
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Zhanpeisov N, Matsuoka M, Mishima H, Yamashita H, Anpo M. Interaction of NO molecules with a copper-containing zeolite. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0166-1280(98)00290-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Zhanpeisov NU, Matsuoka M, Yamashita H, Anpo M. Cluster Quantum Chemical ab Initio Study on the Interaction of NO Molecules with Highly Dispersed Titanium Oxides Incorporated into Silicalite and Zeolites. J Phys Chem B 1998. [DOI: 10.1021/jp981402k] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- N. U. Zhanpeisov
- Department of Applied Chemistry, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599, Japan, and Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
| | - M. Matsuoka
- Department of Applied Chemistry, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599, Japan, and Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
| | - H. Yamashita
- Department of Applied Chemistry, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599, Japan, and Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
| | - M. Anpo
- Department of Applied Chemistry, Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599, Japan, and Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
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