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Paranjothy M. Theoretical Investigation of Dissociation versus Intramolecular Rearrangements in Aminohydroxymethylene. J Phys Chem A 2022; 126:6927-6933. [PMID: 36130264 DOI: 10.1021/acs.jpca.2c04950] [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
Aminohydroxymethylene (H2N-C̈-OH) is the simplest aminooxycarbene which is a heteroatom stabilized carbene. This highly reactive molecule was prepared in an Ar matrix in a recent experimental work. Unimolecular reactivity of this astrochemically important molecule was investigated and only fragmentations were identified contrary to the observations of both fragmentations and intramolecular rearrangements in other hydroxycarbenes. These rearrangement reactions form the corresponding imine and carbonyl compounds. In the present work, direct chemical dynamics simulations of unimolecular chemistry of aminohydroxymethylene were performed in the gas phase to study atomic level dissociation mechanisms. Classical trajectories were generated on-the-fly using potentials and gradients computed at the density functional B3LYP/6-31+G* level of electronic structure theory. Simulation results showed that intramolecular rearrangements accompany fragmentations during the unimolecular decay process of aminohydroxymethylene. However, the average lifetime of the intermediate isomers were found to be only few picoseconds which might not have been long enough for detection in the experiments.
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Affiliation(s)
- Manikandan Paranjothy
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan 342037, India
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2
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The Dissipative Photochemical Origin of Life: UVC Abiogenesis of Adenine. ENTROPY 2021; 23:e23020217. [PMID: 33579010 PMCID: PMC7916814 DOI: 10.3390/e23020217] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/22/2021] [Accepted: 02/03/2021] [Indexed: 11/21/2022]
Abstract
The non-equilibrium thermodynamics and the photochemical reaction mechanisms are described which may have been involved in the dissipative structuring, proliferation and complexation of the fundamental molecules of life from simpler and more common precursors under the UVC photon flux prevalent at the Earth’s surface at the origin of life. Dissipative structuring of the fundamental molecules is evidenced by their strong and broad wavelength absorption bands in the UVC and rapid radiationless deexcitation. Proliferation arises from the auto- and cross-catalytic nature of the intermediate products. Inherent non-linearity gives rise to numerous stationary states permitting the system to evolve, on amplification of a fluctuation, towards concentration profiles providing generally greater photon dissipation through a thermodynamic selection of dissipative efficacy. An example is given of photochemical dissipative abiogenesis of adenine from the precursor HCN in water solvent within a fatty acid vesicle floating on a hot ocean surface and driven far from equilibrium by the incident UVC light. The kinetic equations for the photochemical reactions with diffusion are resolved under different environmental conditions and the results analyzed within the framework of non-linear Classical Irreversible Thermodynamic theory.
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Eizaguirre A, Mó O, Yáñez M, Salpin JY, Tortajada J. Modelling peptide-metal dication interactions: formamide-Ca2+ reactions in the gas phase. Org Biomol Chem 2013; 10:7552-61. [PMID: 22892540 DOI: 10.1039/c2ob26166a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The collision induced dissociation of formamide-Ca(2+) complexes produced in the gas phase through nanoelectrospray ionization yields as main products ions [CaOH](+), [HCNH](+), [Ca(NH(2))](+), HCO(+) and [Ca(NH(3))](2+) and possibly [Ca(H(2)O)](2+) and [C,O,Ca](2+), the latter being rather minor. The mechanisms behind these fragmentation processes have been established by analyzing the topology of the potential energy surface by means of B3LYP calculations carried out with a core-correlated cc-pWCVTZ basis set. The Ca(2+) complexes formed by formamide itself and formimidic acid play a fundamental role. The former undergoes a charge separation reaction yielding [Ca(NH(2))](+) + HCO(+), and the latter undergoes the most favorable Coulomb explosion yielding [Ca-OH](+) + [HCNH](+) and is the origin of a multistep mechanism which accounts for the observed loss of water and HCN. Conversely, the other isomer of formamide, amino(hydroxyl)carbene, does not play any significant role in the unimolecular reactivity of the doubly charged molecular cation.
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Affiliation(s)
- Ane Eizaguirre
- Departamento de Química, Módulo 13, Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco, 28049, Madrid, Spain
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WANG NANA, LI PING, HU YI, BU YUXIANG, WANG WEIHUA, XIE XIAOYAN. ASSOCIATION OF URACIL WITH Zn2+ AND THE HYDRATED Zn2+: A DFT INVESTIGATION. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2011. [DOI: 10.1142/s0219633607002927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The association behaviors between Uracil and Zn 2+ in vacuum and in the presence of extra water molecules have been investigated systematically using the density functional theory (DFT). In these systems, the interaction of Zn 2+ with the carbonyl oxygen O 4 is systematically favored relative to O 2. For Uracil- Zn 2+ complexes, the more stable coordination mode among the possible complexes corresponds to the bidentate one, where the monodentate coordination mode is about 37 kcal/mol higher in energy relative to the bidentate case. Correspondingly, the stabilities of these structures are enhanced due to the formations of the four-membered chelate ring in the bidentate coordination processes. In the monodentate coordination complexes, the hydration effects are larger than those in the bidentate coordination complexes. The most basic center in the Uracil remains the same regardless of whether introducing the water molecules to Zn 2+ or not. The calculated Zn 2+ bonding energies in Uracil- Zn 2+( H 2 O ) complexes are reduced in comparison to those of the unhydrated Uracil- Zn 2+ complexes. Moreover, investigations of stepwise hydration of Zn 2+ in the most stable Uracil- Zn 2+ complex suggest that the successive hydration effect on the Zn 2+ site can enhance the strength of C = O bond in the Uracil- Zn 2+ complexes and reduce the association interaction of Uracil with Zn 2+. Additionally, the most acidic site of Uracil has been changed from N 1- to N 3– H group before and after introducing the Zn 2+ and there is a significant increase in the overall acidity of the system.
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Affiliation(s)
- NANA WANG
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - PING LI
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - YI HU
- High-performance Computational Center, Shandong University, Jinan, 250100, P. R. China
| | - YUXIANG BU
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
- Institute of Theoretical Chemistry, Shandong University, Jinan, 250100, P. R. China
| | - WEIHUA WANG
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
| | - XIAOYAN XIE
- Department of Chemistry, Qufu Normal University, Qufu, 273165, P. R. China
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Lee GY. Interaction of Proline with Cu+and Cu2+Ions in the Gas PhaseGab Yong Lee*Department of Life Chemistry, Catholic University of Daegu, Gyeongsan 712‐702, Korea(Received March 3, 2009)INTRODUCTIONCopper ions are the most important transitionmetals involved in several biological processes ofliving systems, including oxidation, dioxygentransport, and charge transfer.1 The study of interactionsbetween the metal ion and amino acids hasattracted considerable attention from experimental2-6and theoretical6-11 viewpoints. Thermochemicalinformation on interactions between the metal ion and biological. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2009. [DOI: 10.5012/jkcs.2009.53.3.257] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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6
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Cheng W, Jiang H, Zhang D, Zhang C. A DFT study of the reactions of the Cu+ ion with methylamine and dimethylamine. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2008.10.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wang W, Wang N, Li P, Bu Y, Xie X, Song R. Theoretical studies on the properties of uracil and its dimer upon thioketo substitution. Theor Chem Acc 2008. [DOI: 10.1007/s00214-008-0442-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Fleming GJ, McGill PR, Idriss H. Gas phase interaction of L
-proline with Be2+
, Mg2+
and Ca2+
ions: a computational study. J PHYS ORG CHEM 2007. [DOI: 10.1002/poc.1249] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Mó O, Yáñez M, Salpin JY, Tortajada J. Thermochemistry, bonding, and reactivity of Ni+ and Ni2+ in the gas phase. MASS SPECTROMETRY REVIEWS 2007; 26:474-516. [PMID: 17492664 DOI: 10.1002/mas.20134] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
In this review, we present a general overview on the studies carried out on Ni(+-)- and Ni(2+)-containing systems in the gas phase since 1996. We have focused our attention in the determination of binding energies in parallel with an analysis of the structure and bonding of the complexes formed by the interaction of Ni(+) with one ligand, or in clusters where this metal ion binds several identical or different ligands. Solvation of Ni(2+) by different ligands is also discussed, together with the theoretical information available of doubly charged Ni-containing species. The final section of this review is devoted to an analysis of the gas-phase uni- and bimolecular reactivity of Ni(+) and Ni(2+) complexes.
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Affiliation(s)
- Otilia Mó
- Departamento de Química, C-9, Universidad Autónoma de Madrid, Cantoblanco, 28049-Madrid, Spain
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Turecek F. Copper-biomolecule complexes in the gas phase. The ternary way. MASS SPECTROMETRY REVIEWS 2007; 26:563-82. [PMID: 17474124 DOI: 10.1002/mas.20137] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
This review deals with copper complexes of a variety of organic and bioorganic molecules that have been produced as gas-phase ions by electrospray and other ionization methods and studied experimentally by mass spectrometry and theoretically by ab initio and density functional theory computations. Ternary complexes of Cu((II)) allow one to modify the oxidation state and coordination sphere of the copper ion and thus induce novel fragmentations that involve redox and radical-based reactions. Structure elucidation, distinction, and quantitation of leucine and isoleucine isomers in peptides, distinction of enantiomers in chiral compounds, and sensitive detection of antibiotics are some of the highlights of mass spectrometry of ternary copper complexes. Binary copper complexes are mainly represented by Cu((I)) species in which the copper ion displays the properties of a weak Lewis acid.
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Affiliation(s)
- Frantisek Turecek
- Department of Chemistry, Bagley Hall, University of Washington, Seattle, WA 98195-1700, USA.
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Lamsabhi AM, Alcamí M, Mó O, Yáñez M, Tortajada J. Gas-Phase Deprotonation of Uracil−Cu2+ and Thiouracil−Cu2+ Complexes. J Phys Chem A 2006; 110:1943-50. [PMID: 16451028 DOI: 10.1021/jp055163u] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The deprotonation of Cu2+ complexes with uracil, 2-thiouracil, 4-thiouracil, and 2,4-dithiouracil has been investigated by means of B3LYP/ 6-311+G(2df,2p)//6-31G(d) calculations. The most stable [(uracil-H)Cu]+ and [(thiouracil-H)Cu]+ complexes correspond to bidentate structures in which Cu interacts with the deprotonated ring-nitrogen atom and with the oxygen or the sulfur atom of the adjacent carbonyl or thiocarbonyl group. For 2- and 4-thiouracil derivatives, the structures in which the metal cation interacts with the thiocarbonyl group are clearly favored with respect to those in which Cu interacts with the carbonyl group. This is at variance with what was found to be the most stable structure of the corresponding Cu2+ complexes, where association to the carbonyl oxygen was always preferred over the association to the thiocarbonyl group. The [(uracil-H)Cu]+ and [(thiouracil-H)Cu]+ complexes can be viewed as the result of Cu+ attachment to the uracil-H and thiouracil-H radicals formed by the deprotonation of the corresponding uracil+* and thiouracil+* radical cations. As a matter of fact their relative stability is dictated by the intrinsic stability of the corresponding uracil-H and thiouracil-H radical and by the fact that, in general, the N3-deprotonated site is a better electron donor than the N1. In all complexes, the bonding of Cu both to nitrogen and sulfur and to nitrogen and oxygen has a significantly large covalent character.
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Affiliation(s)
- Al Mokhtar Lamsabhi
- Departamento de Química C-9, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049-Madrid, Spain
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Lamsabhi AM, Alcamí M, Mó O, Yáñez M, Tortajada J. Association of Cu2+with Uracil and Its Thio Derivatives: A Theoretical Study. Chemphyschem 2004; 5:1871-8. [PMID: 15648135 DOI: 10.1002/cphc.200400208] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The structures and relative stabilities of the complexes between Cu2+ and uracil, 2-thiouracil, 4-thiouracil, and 2,4-dithiouracil were investigated by B3LYP/6-311+G(2df,2p)//B3LYP/6-31G* DFT calculations. In those systems in which both types of basic centers, that is, a carbonyl and a thiocarbonyl group, are present, association of Cu2+ with the oxygen atom is systematically favored, in contrast to what was found for the corresponding Cu+ complexes. This can be understood by considering that association of Cu2+ is immediately followed by oxidation of the base, which accumulates the negative charge at the oxygen atoms. Similarly, for 2,4-dithiouracil the most basic site for Cu+ attachment is the sulfur atom at the 4-position, while for association of Cu2+ it is sulfur at the 2-position. In contrast, differences between uracil-Cu+ and uracil-Cu2+ complexes are very small, and in both cases the oxygen atom at the 4-position is the most basic. Cu2+ binding energies are about 4 and 1.2 times larger than Cu+ binding energies and proton affinities, respectively. Uracil- and thiouracil-Cu2+ complexes are thermodynamically unstable but kinetically stable with respect to their dissociation into uracil*+ + Cu+ or thiouracil*+ + Cu+. The Cu2+ binding energies vary with the difference between the second ionization potential of the metal and the first ionization potential of the base. regardless of the reference acid (H+, Cu+, Cu2+) the basicity trend is 2,4-dithiouracil > 4-thiouracil > 2-thiouracil > uracil.
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Affiliation(s)
- Al Mokhtar Lamsabhi
- Departamento de Química C-9, Facultad de Ciencias Universidad Autónoma de Madrid Cantoblanco, 28049 Madrid, Spain
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Hoppilliard Y, Ohanessian G, Bourcier S. Fragmentation Mechanisms of Glycine-Cu+in the Gas Phase. An Experimental and Theoretical Study†. J Phys Chem A 2004. [DOI: 10.1021/jp047905+] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu H, Hu Y, Yang S. Photodissociation Studies of Mass-Selected Complex Cations Mg +( N, N-dimethylformamide) 1,2. J Phys Chem A 2003. [DOI: 10.1021/jp036110k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Haichuan Liu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yihua Hu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Shihe Yang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Rodríguez-Santiago L, Noguera M, Sodupe M, Salpin JY, Tortajada J. Gas Phase Reactivity of Ni+ with Urea. Mass Spectrometry and Theoretical Studies. J Phys Chem A 2003. [DOI: 10.1021/jp036216f] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L. Rodríguez-Santiago
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra 08193, and Laboratoire Analyze et Environnement. CNRS UMR 8587, Université d'Evry-Val-d'Essonne, Boulevard François Mitterrand 91025 Evry Cedex, France
| | - M. Noguera
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra 08193, and Laboratoire Analyze et Environnement. CNRS UMR 8587, Université d'Evry-Val-d'Essonne, Boulevard François Mitterrand 91025 Evry Cedex, France
| | - M. Sodupe
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra 08193, and Laboratoire Analyze et Environnement. CNRS UMR 8587, Université d'Evry-Val-d'Essonne, Boulevard François Mitterrand 91025 Evry Cedex, France
| | - J. Y. Salpin
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra 08193, and Laboratoire Analyze et Environnement. CNRS UMR 8587, Université d'Evry-Val-d'Essonne, Boulevard François Mitterrand 91025 Evry Cedex, France
| | - J. Tortajada
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra 08193, and Laboratoire Analyze et Environnement. CNRS UMR 8587, Université d'Evry-Val-d'Essonne, Boulevard François Mitterrand 91025 Evry Cedex, France
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Liu H, Sun J, Yang S. Photodissociation of Bidentate Metal Complex Cations−Hydrogen Shift Reactions. J Phys Chem A 2003. [DOI: 10.1021/jp034757z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Haichuan Liu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Julong Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Shihe Yang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
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Cheng MJ, Hu CH, Yeh CS. Reactions of 2-Propanol with Cu+ in the Gas Phase: A Density Functional Theory Study. J Phys Chem A 2002. [DOI: 10.1021/jp0211335] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mu-Jeng Cheng
- Department of Chemistry, National Changhua University of Education, Changhua 500, Taiwan
| | - Ching-Han Hu
- Department of Chemistry, National Changhua University of Education, Changhua 500, Taiwan
| | - Chen-Sheng Yeh
- Department of Chemistry, National Chen Kung University, Tainan 701, Taiwan
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18
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Boutreau L, Toulhoat P, Tortajada J, Luna A, Mó O, Yáñez M. Reactions between Glycolic Acid and Cu+ in the Gas Phase. An Experimental and Theoretical Study. J Phys Chem A 2002. [DOI: 10.1021/jp026378w] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mó O, Yáñez M, Gal JF, Maria PC, Guillemin JC. Vinyl- and ethynylsilanes, -germanes and -stannanes. A new case of dissociative proton attachment. J PHYS ORG CHEM 2002. [DOI: 10.1002/poc.498] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gresh N, Policar C, Giessner-Prettre C. Modeling Copper(I) Complexes: SIBFA Molecular Mechanics versus ab Initio Energetics and Geometrical Arrangements. J Phys Chem A 2002. [DOI: 10.1021/jp0106146] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- N. Gresh
- Equipe de Pharmacochimie Moléculaire et Cellulaire, UMR 8638, Université René Descartes, 4, avenue de l'Observatoire, 75270 Paris Cedex 06, France, Laboratoire de Chimie Bioorganique et Bioinorganique, FRE 2127, Bâtiment 420, Université de Paris Sud, 91405 Orsay, Cedex, France, and Laboratoire de Chimie Théorique, UMR 7616, Université P. & M. Curie, Case Courrier 137, 4, place Jussieu, 75252 Paris Cedex 05, France
| | - C. Policar
- Equipe de Pharmacochimie Moléculaire et Cellulaire, UMR 8638, Université René Descartes, 4, avenue de l'Observatoire, 75270 Paris Cedex 06, France, Laboratoire de Chimie Bioorganique et Bioinorganique, FRE 2127, Bâtiment 420, Université de Paris Sud, 91405 Orsay, Cedex, France, and Laboratoire de Chimie Théorique, UMR 7616, Université P. & M. Curie, Case Courrier 137, 4, place Jussieu, 75252 Paris Cedex 05, France
| | - C. Giessner-Prettre
- Equipe de Pharmacochimie Moléculaire et Cellulaire, UMR 8638, Université René Descartes, 4, avenue de l'Observatoire, 75270 Paris Cedex 06, France, Laboratoire de Chimie Bioorganique et Bioinorganique, FRE 2127, Bâtiment 420, Université de Paris Sud, 91405 Orsay, Cedex, France, and Laboratoire de Chimie Théorique, UMR 7616, Université P. & M. Curie, Case Courrier 137, 4, place Jussieu, 75252 Paris Cedex 05, France
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Pantazis DA, Tsipis AC, Tsipis CA. Ab Initio Quantum Chemical Study of the Coordination Preferences and Catalytic Role of Cu+ Ions in the Dehydration Reactions of Hydroxyformaldoxime Conformers and the Oxidation of HCN to Hydroxyformaldoxime by Hydrogen Peroxide. J Phys Chem A 2002. [DOI: 10.1021/jp013700e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dimitrios A. Pantazis
- Laboratory of Applied Quantum Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, 540 06 Thessaloniki, Greece
| | - Athanassios C. Tsipis
- Laboratory of Applied Quantum Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, 540 06 Thessaloniki, Greece
| | - Constantinos A. Tsipis
- Laboratory of Applied Quantum Chemistry, Faculty of Chemistry, Aristotle University of Thessaloniki, 540 06 Thessaloniki, Greece
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Nakao Y, Hirao K, Taketsugu T. Theoretical study of first-row transition metal oxide cations. J Chem Phys 2001. [DOI: 10.1063/1.1362323] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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23
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Nakao Y, Hirao K, Taketsugu T. Theoretical study of the water activation by a cobalt cation: Ab initio multireference theory versus density functional theory. J Chem Phys 2001. [DOI: 10.1063/1.1336568] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Kirmse W. Carbene protonation. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s1079-350x(01)80003-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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Luna A, Amekraz B, Morizur JP, Tortajada J, Mó O, Yáñez M. Reactions of Urea with Cu+ in the Gas Phase: An Experimental and Theoretical Study. J Phys Chem A 2000. [DOI: 10.1021/jp9934634] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Luna A, Gevrey S, Tortajada J. Modeling the Interaction of the Phosphate Group in Nucleotides with Copper(I) in the Gas Phase: Reactivity of Cu+ with Orthophosphoric Acid and Its Monomethyl Ester. J Phys Chem B 1999. [DOI: 10.1021/jp991050x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Luna
- Laboratoire de Chimie Organique Structurale, Universite Pierre et Marie Curie, CNRS UMR 8587, 4 Place Jussieu, Boîte 45, 75252 Paris Cedex 05, France
| | - S. Gevrey
- Laboratoire de Chimie Organique Structurale, Universite Pierre et Marie Curie, CNRS UMR 8587, 4 Place Jussieu, Boîte 45, 75252 Paris Cedex 05, France
| | - J. Tortajada
- Laboratoire de Chimie Organique Structurale, Universite Pierre et Marie Curie, CNRS UMR 8587, 4 Place Jussieu, Boîte 45, 75252 Paris Cedex 05, France
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Guo JX, Ho JJ. Ab Initio Study of Substitution Effect and Catalytic Effect of Intramolecular Hydrogen Transfer of N-Substituted Formamides. J Phys Chem A 1999. [DOI: 10.1021/jp991026j] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jin-Xiang Guo
- Department of Chemistry, National Taiwan Normal University 88, sec. 4, Tingchow Rd. Taipei, Taiwan 117, ROC
| | - Jia-Jen Ho
- Department of Chemistry, National Taiwan Normal University 88, sec. 4, Tingchow Rd. Taipei, Taiwan 117, ROC
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Nakao Y, Taketsugu T, Hirao K. Theoretical study of ammonia activation by M+ (M=Sc, Ni, Cu). J Chem Phys 1999. [DOI: 10.1063/1.479027] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Bertrán J, Rodríguez-Santiago L, Sodupe M. The Different Nature of Bonding in Cu+-Glycine and Cu2+-Glycine. J Phys Chem B 1999. [DOI: 10.1021/jp984534m] [Citation(s) in RCA: 184] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Bertrán
- Departament de Química, Unitat de Química Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - L. Rodríguez-Santiago
- Departament de Química, Unitat de Química Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - M. Sodupe
- Departament de Química, Unitat de Química Física, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
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Alcamí M, Mó O, Yáñez M, Luna A, Morizur JP, Tortajada J. Exploring the Potential Energy Surface of the Association of Cu+ to Oxaziridine, Nitrosomethane, and Formaldoxime. J Phys Chem A 1998. [DOI: 10.1021/jp982796i] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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