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Kaluva S, Karri VL, Kharat B, Naganathappa M. Many-body analysis and spectroscopic characterization of diazene oligomers: A theoretical study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 287:121957. [PMID: 36371876 DOI: 10.1016/j.saa.2022.121957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/24/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
The present study reports the many-body analysis and spectroscopic characterization of linear and cyclic diazene oligomers in gas and water solvent states. The oligomers of diazene from monomer to pentamer have been considered for the study. The spectroscopic studies such as geometrical parameters, infrared spectra, electronic absorption spectra, and natural transition orbitals (NTOs) were reported. Many-body analysis techniques have been implemented to study the interactions among the diazene oligomers. These calculations have been performed using exchange and correlation functional (B3LYP) and 6-311++G (d,p) basis set. The geometrical parameters and infrared modes of monomer diazene in the gas state are well-matched with the available experimental determinations at this level of theory. A significant change in vibrational modes of linear and cyclic diazene oligomers has been observed in the gas phase-to-water solvent state. The time-dependent density functional theory (TD-DFT) has been used to calculate the electronic absorption spectra of diazene oligomers. The Wavelength of electronic transitions, oscillator strength, and HOMO to LUMO gap has been reported. Many-body analysis shows that two-, three-, four-, and five-body energies have a remarkable contribution to the binding energy in addition to relaxation energies. All these calculations have been performed using Gaussian 16 program package.
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Affiliation(s)
- Sumalya Kaluva
- Department of Physics, School of Science, GITAM (Deemed to be University), Hyderabad 502329, TS, India
| | - Venkata Lakshmi Karri
- Department of Physics, School of Science, GITAM (Deemed to be University), Hyderabad 502329, TS, India
| | - Bhagwat Kharat
- Department of Physics, Swami Vivekanand Senior College, Mantha 431504, MH, India
| | - Mahadevappa Naganathappa
- Department of Physics, School of Science, GITAM (Deemed to be University), Hyderabad 502329, TS, India.
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2
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Gardner EJ, Marguet SC, Cobb CR, Pham DM, Beringer JAM, Bertke JA, Shafaat HS, Warren TH. Uncovering Redox Non-innocent Hydrogen-Bonding in Cu(I)-Diazene Complexes. J Am Chem Soc 2021; 143:15960-15974. [PMID: 34546737 DOI: 10.1021/jacs.1c04108] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The life-sustaining reduction of N2 to NH3 is thermoneutral yet kinetically challenged by high-energy intermediates such as N2H2. Exploring intramolecular H-bonding as a potential strategy to stabilize diazene intermediates, we employ a series of [xHetTpCu]2(μ-N2H2) complexes that exhibit H-bonding between pendant aromatic N-heterocycles (xHet) such as pyridine and a bridging trans-N2H2 ligand at copper(I) centers. X-ray crystallography and IR spectroscopy clearly reveal H-bonding in [pyMeTpCu]2(μ-N2H2) while low-temperature 1H NMR studies coupled with DFT analysis reveals a dynamic equilibrium between two closely related, symmetric H-bonded structural motifs. Importantly, the xHet pendant negligibly influences the electronic structure of xHetTpCuI centers in xHetTpCu(CNAr2,6-Me2) complexes that lack H-bonding as judged by nearly indistinguishable ν(CN) frequencies (2113-2117 cm-1). Nonetheless, H-bonding in the corresponding [xHetTpCu]2(μ-N2H2) complexes results in marked changes in ν(NN) (1398-1419 cm-1) revealed through resonance Raman studies. Due to the closely matched N-H BDEs of N2H2 and the pyH0 cation radical, the aromatic N-heterocyclic pendants may encourage partial H-atom transfer (HAT) from N2H2 to xHet through redox-non-innocent H-bonding in [xHetTpCu]2(μ-N2H2). DFT studies reveal modest thermodynamic barriers for concerted transfer of both H-atoms of coordinated N2H2 to the xHet pendants to generate tautomeric [xHetHTpCu]2(μ-N2) complexes, identifying metal-assisted concerted dual HAT as a thermodynamically favorable pathway for N2/N2H2 interconversion.
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Affiliation(s)
- Evan J Gardner
- Department of Chemistry, Georgetown University, Box 51277-1227, Washington, D.C. 20057, United States
| | - Sean C Marguet
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Caitlyn R Cobb
- Department of Chemistry, Georgetown University, Box 51277-1227, Washington, D.C. 20057, United States
| | - Dominic M Pham
- Department of Chemistry, Georgetown University, Box 51277-1227, Washington, D.C. 20057, United States
| | - Josalyne A M Beringer
- Department of Chemistry, Georgetown University, Box 51277-1227, Washington, D.C. 20057, United States
| | - Jeffery A Bertke
- Department of Chemistry, Georgetown University, Box 51277-1227, Washington, D.C. 20057, United States
| | - Hannah S Shafaat
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Timothy H Warren
- Department of Chemistry, Georgetown University, Box 51277-1227, Washington, D.C. 20057, United States
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3
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Tanifuji K, Ohki Y. Metal–Sulfur Compounds in N2 Reduction and Nitrogenase-Related Chemistry. Chem Rev 2020; 120:5194-5251. [DOI: 10.1021/acs.chemrev.9b00544] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kazuki Tanifuji
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, California 92697-3900, United States
| | - Yasuhiro Ohki
- Department of Chemsitry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
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Sindhu A, Pradhan R, Lourderaj U, Paranjothy M. Theoretical investigation of the isomerization pathways of diazenes: torsion vs. inversion. Phys Chem Chem Phys 2019; 21:15678-15685. [PMID: 31271157 DOI: 10.1039/c8cp05953e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diazenes are an important family of organic compounds used widely in synthetic and materials chemistry. These molecules have a planar geometry and exhibit cis-trans isomerization. The simplest of all these molecules - diazene (N2H2) - has been subjected to several experimental and theoretical studies. Two mechanisms have been proposed for the cis-trans isomerization of diazene, which are an in-plane inversion and an out-of-plane torsion. The activation energies for these pathways are similar and the competition between these two mechanisms has been discussed in the literature based on electronic structure theory calculations. Three decades ago, a classical dynamics investigation of diazene isomerization was carried out using a model Hamiltonian and it was indicated that the in-plane inversion is forbidden classically because of a centrifugal barrier and the out-of-plane torsion is the only isomerization pathway. In the present work, we investigated the cis-trans isomerization dynamics of diazene using ab initio classical trajectory simulations at the CASSCF(2,2)/aug-cc-pVDZ level of electronic structure theory. The simulation results confirmed the presence of the aforementioned centrifugal barrier for the inversion and torsion was the only observed pathway. The calculations were repeated for a similar system (difluorodiazene, N2F2) and again the centrifugal barrier prevented the inversion pathway.
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Affiliation(s)
- Aarti Sindhu
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan, India.
| | - Renuka Pradhan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, P. O. Jatni, Khurda, India
| | - Upakarasamy Lourderaj
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, P. O. Jatni, Khurda, India
| | - Manikandan Paranjothy
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan, India.
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Martin-Drumel MA, Baraban JH, Changala PB, Stanton JF, McCarthy MC. The Hunt for Elusive Molecules: Insights from Joint Theoretical and Experimental Investigations. Chemistry 2019; 25:7243-7258. [PMID: 30673130 DOI: 10.1002/chem.201805986] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Indexed: 11/10/2022]
Abstract
Rotational spectroscopy is an invaluable tool to unambiguously determine the molecular structure of a species, and sometimes even to establish its very existence. This article illustrates how experimental and theoretical state-of-the-art tools can be used in tandem to investigate the rotational structure of molecules, with particular emphasis on those that have long remained elusive. The examples of three emblematic species-gauche-butadiene, disilicon carbide, and germanium dicarbide-highlight the close, mutually beneficial interaction between high-level theoretical calculations and sensitive microwave measurements. Prospects to detect other elusive molecules of chemical and astronomical interest are discussed.
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Affiliation(s)
- Marie-Aline Martin-Drumel
- Institut des Sciences Moléculaires d'Orsay (ISMO), CNRS, Univ. Paris-Sud, Université Paris-Saclay, F-91405, Orsay, France
| | - Joshua H Baraban
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - P Bryan Changala
- JILA, National Institute of Standards and Technology and Department of, Physics, University of Colorado, Boulder, CO, 80309, USA
| | - John F Stanton
- Quantum Theory Project, Departments of Chemistry and Physics, Univ. of Florida, Gainesville, FL, 32611, USA
| | - Michael C McCarthy
- Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts, 02138, USA
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Nibler JW, Neisess JA, Hedberg K. Combined Electron-Diffraction, Spectroscopic, and Theoretical Determination of the Structure of N-Deuterio- trans-Methyldiazene, CH 3N═ND. Conformational Effects of the N═N Double Bond. J Phys Chem A 2018; 122:8600-8611. [PMID: 30272978 DOI: 10.1021/acs.jpca.8b08103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Gas phase electron-diffraction (GED) data obtained at a nozzle-tip temperature of 273 K have been combined with spectroscopic vibrational-rotational constants to determine the structure of trans-methyldiazene, an important prototype for the N═N double bond. The N-deuterio form CH3N═ND was used in the study since it is appreciably more stable than CH3N═NH. Both the theoretical and experimental results are consistent with a planar C s trans-CNND framework. The experimental results ( rα0/ rg273) are 1.465(2)/1.467(2) Å for the CN bond, 1.248(1)/1.251(1) Å for the N═N double bond, and 1.037(17)/1.048(17) Å for the ND bond. The NND angle is 105.9(20)/105.6(20)° and the CNN angle is 112.4(5)/112.2(5)°, where the uncertainties in parentheses are twice the standard deviation from a simultaneous least-squares fit of the GED and microwave data. For the methyl group, both theory and experiment indicate that two CH bonds are symmetrically arranged out of the molecular plane while the third CH' lies in the plane in an eclipsed (not staggered) cis-H'CNN arrangement. Theoretical calculations (B3LYP/cc-PVnZ and CCSD(T)/cc-PVnZ) suggest a slight distortion of the methyl group, with a tilt of the methyl top axis about 5° away from the N═N bond. The experimental data are consistent with this picture but are equally consistent with an undistorted methyl group. Inclusion of distortions predicted by theory in a complete basis set limit (CBS) lead to a preferred analysis with average values of 1.086(5)/1.106(5) Å for the CH bond length and an average HCH angle of 108.3(8)/107.8(8)°. Features of the structure of methyldiazene and related compounds are discussed. It is found that the short N═N bond length in the diazenes produces much greater steric repulsion than in analogous ethylene compounds and this effect leads to some interesting conformational and distortion differences for attached CH3 groups.
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Affiliation(s)
- Joseph W Nibler
- Department of Chemistry , Oregon State University , Corvallis , Oregon 97332-4003 , United States
| | - John A Neisess
- Department of Chemistry , Oregon State University , Corvallis , Oregon 97332-4003 , United States
| | - Kenneth Hedberg
- Department of Chemistry , Oregon State University , Corvallis , Oregon 97332-4003 , United States
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7
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Romero AH. Influence of the heteroatom on the structure, bonding and ring strain of a series of three-membered rings containing a second, third, fourth and fifth row elements: a theoretical investigation. Struct Chem 2018. [DOI: 10.1007/s11224-018-1139-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Góbi S, Bergantini A, Turner AM, Kaiser RI. Electron Radiolysis of Ammonium Perchlorate: A Reflectron Time-of-Flight Mass Spectrometric Study. J Phys Chem A 2017; 121:3879-3890. [PMID: 28445648 DOI: 10.1021/acs.jpca.7b01862] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sándor Góbi
- Department
of Chemistry and ‡W. M. Keck Laboratory in Astrochemistry, University of Hawaii at Ma̅noa, Honolulu, Hawaii 96822, United States
| | - Alexandre Bergantini
- Department
of Chemistry and ‡W. M. Keck Laboratory in Astrochemistry, University of Hawaii at Ma̅noa, Honolulu, Hawaii 96822, United States
| | - Andrew M. Turner
- Department
of Chemistry and ‡W. M. Keck Laboratory in Astrochemistry, University of Hawaii at Ma̅noa, Honolulu, Hawaii 96822, United States
| | - Ralf I. Kaiser
- Department
of Chemistry and ‡W. M. Keck Laboratory in Astrochemistry, University of Hawaii at Ma̅noa, Honolulu, Hawaii 96822, United States
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9
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Albertin G, Antoniutti S, Bortoluzzi M, Botter A, Castro J. Pentamethylcyclopentadienyl Half-Sandwich Diazoalkane Complexes of Ruthenium: Preparation and Reactivity. Inorg Chem 2016; 55:5592-602. [PMID: 27187280 DOI: 10.1021/acs.inorgchem.6b00671] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The diazoalkane complexes [Ru(η(5)-C5Me5)(N2CAr1Ar2){P(OR)3}L]BPh4 (1-4) [R = Me, L = P(OMe)3 (1); R = Et, L = P(OEt)3 (2); R = Me, L = PPh3 (3); R = Et, L = PPh3 (4); Ar1 = Ar2 = Ph (a); Ar1 = Ph, Ar2 = p-tolyl (b); Ar1Ar2 = C12H8 (c); Ar1 = Ph, Ar2 = PhC(O) (d)] and [Ru(η(5)-C5Me5){N2C(C12H8)}{PPh(OEt)2}(PPh3)]BPh4 (5c) were prepared by allowing chloro-compounds RuCl(η(5)-C5Me5)[P(OR)3]L to react with the diazoalkane Ar1Ar2CN2 in the presence of NaBPh4. Treatment of complexes 1-4 with H2O afforded 1,2-diazene derivatives [Ru(η(5)-C5Me5)(η(2)-NH═NH){P(OR)3}L]BPh4 (6-9) and ketone Ar1Ar2CO. A reaction path involving nucleophilic attack by H2O on the coordinated diazoalkane is proposed and supported by density functional theory calculations. The complexes were characterized spectroscopically (IR and (1)H, (31)P, (13)C, (15)N NMR) and by X-ray crystal structure determination of [Ru(η(5)-C5Me5)(N2CC12H8){P(OEt)3}2]BPh4 (2c) and [Ru(η(5)-C5Me5)(η(2)-NH═NH){P(OEt)3}2]BPh4 (7).
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia , Via Torino 155, 30172 Mestre Venezia, Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia , Via Torino 155, 30172 Mestre Venezia, Italy
| | - Marco Bortoluzzi
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia , Via Torino 155, 30172 Mestre Venezia, Italy
| | - Alessandra Botter
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia , Via Torino 155, 30172 Mestre Venezia, Italy
| | - Jesús Castro
- Departamento de Química Inorgánica, Facultade de Química, Edificio de Ciencias Experimentais, Universidade de Vigo , 36310 Vigo (Galicia), Spain
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10
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Influence of the decomposition of Tris(2,2-bipyridine)iron(II) and (III) on the reduction of Tris(2,2-bipyridine)iron(III) by hydrazine in aqueous acidic medium: a kinetic study. TRANSIT METAL CHEM 2015. [DOI: 10.1007/s11243-015-9993-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Albertin G, Antoniutti S, Botter A, Castro J. Hydrolysis of coordinated diazoalkanes to yield side-on 1,2-diazene derivatives. Inorg Chem 2015; 54:2091-3. [PMID: 25695769 DOI: 10.1021/ic502963n] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Diazoalkane complexes [Ru(η(5)-C5Me5)(N2CAr1Ar2)(PPh3){P(OR)3}]BPh4 [R = Me (1), Et (2); Ar1 = Ar2 = Ph (a); Ar1 = Ph, Ar2 = p-tolyl (b); Ar1Ar2 = C12H8 (c)] were prepared by allowing chloro complexes RuCl(η(5)-C5Me5)(PPh3)[P(OR)3] to react with diazoalkane Ar1Ar2CN2 in ethanol. The treatment of compounds 1 and 2 with H2O afforded 1,2-diazene derivatives [Ru(η(5)-C5Me5)(η(2)-NH═NH)(PPh3){P(OR)3}]BPh4 (3 and 4) and ketone Ar1Ar2CO. A reaction path involving nucleophilic attack by H2O on the coordinated diazoalkane is proposed. The complexes were characterized spectroscopically (IR and NMR) and by X-ray crystal structure determination of [Ru(η(5)-C5Me5)(η(2)-NH═NH)(PPh3){P(OMe)3}]BPh4 (3).
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia , Dorsoduro 2137, 30123 Venezia, Italy
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12
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Morsing TJ, Schau-Magnussen M, Døssing A. 1,3,4-Thiadiazolidine-2,5-dione: Crystal Structure, Calculation of Aromaticity and Photodecomposition Quantum Yield. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Thorbjørn J. Morsing
- Department of Chemistry; University of Copenhagen; Universitetsparken 5 DK-2100 Copenhagen Denmark
| | - Magnus Schau-Magnussen
- Department of Chemistry; University of Copenhagen; Universitetsparken 5 DK-2100 Copenhagen Denmark
| | - Anders Døssing
- Department of Chemistry; University of Copenhagen; Universitetsparken 5 DK-2100 Copenhagen Denmark
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13
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Leow D, Chen YH, Hung TH, Su Y, Lin YZ. Photodriven Transfer Hydrogenation of Olefins. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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A kinetic study of the oxidation of hydrazine by tris(1,10-phenanthroline)iron(III) in acidic medium. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.06.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Köthe C, Metzinger R, Limberg C. Reduction and Hydrogenation of a Diazene by a (β‐Diketiminato)nickel Hydrazide. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Claudia Köthe
- Humboldt‐Universität zu Berlin, Institut für Chemie Brook‐Taylor‐Str. 2, 12489 Berlin, Germany, Fax: +49‐30‐2093‐6966, http://www.chemie.hu‐berlin.de/aglimberg/
| | - Ramona Metzinger
- Humboldt‐Universität zu Berlin, Institut für Chemie Brook‐Taylor‐Str. 2, 12489 Berlin, Germany, Fax: +49‐30‐2093‐6966, http://www.chemie.hu‐berlin.de/aglimberg/
| | - Christian Limberg
- Humboldt‐Universität zu Berlin, Institut für Chemie Brook‐Taylor‐Str. 2, 12489 Berlin, Germany, Fax: +49‐30‐2093‐6966, http://www.chemie.hu‐berlin.de/aglimberg/
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16
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Sokolov AY, Schaefer HF. Coordination Properties of Bridging Diazene Ligands in Unusual Diiron Complexes. Organometallics 2010. [DOI: 10.1021/om100098t] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander Yu. Sokolov
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602
| | - Henry F. Schaefer
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602
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17
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Field LD, Li HL, Dalgarno SJ. Side-on Bound Diazene and Hydrazine Complexes of Ruthenium. Inorg Chem 2010; 49:6214-21. [DOI: 10.1021/ic100821u] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Leslie D. Field
- School of Chemistry, University of New South Wales, NSW 2052, Australia
| | - Hsiu L. Li
- School of Chemistry, University of New South Wales, NSW 2052, Australia
| | - Scott J. Dalgarno
- School of EPS-Chemistry, Heriot-Watt University, Edinburgh, Scotland EH14 4AS, U.K
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18
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Gaviglio C, Doctorovich F. Hydrogen-Free Homogeneous Catalytic Reduction of Olefins in Aqueous Solutions. J Org Chem 2008; 73:5379-84. [DOI: 10.1021/jo800302v] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Carina Gaviglio
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Piso 3, (C1428EHA) Buenos Aires, Argentina
| | - Fabio Doctorovich
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, Piso 3, (C1428EHA) Buenos Aires, Argentina
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19
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Kirby AJ, Souza BS, Medeiros M, Priebe JP, Manfredi AM, Nome F. Hydroxylamine as an oxygen nucleophile. Chemical evidence from its reaction with a phosphate triester. Chem Commun (Camb) 2008:4428-9. [DOI: 10.1039/b810408e] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Field LD, Li HL, Dalgarno SJ, Turner P. The first side-on bound metal complex of diazene, HNNH. Chem Commun (Camb) 2008:1680-2. [DOI: 10.1039/b802039f] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Badawi HM. Conformational stability and vibrational analyses of vinyl diazene CH2CH–NNH and vinyl imine CH2CH–CHNH. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.theochem.2004.10.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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22
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Lai CH, Su MD, Chu SY. Theoretical Study of HNXH (X = N, P, As, Sb, and Bi) Isomers in the Singlet and Triplet States. J Phys Chem A 2003. [DOI: 10.1021/jp021842i] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chin-Hung Lai
- Department of Chemistry, National Tsing Hua University, Hsinchu 30043, Taiwan, R.O.C., and School of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, R.O.C
| | - Ming-Der Su
- Department of Chemistry, National Tsing Hua University, Hsinchu 30043, Taiwan, R.O.C., and School of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, R.O.C
| | - San-Yan Chu
- Department of Chemistry, National Tsing Hua University, Hsinchu 30043, Taiwan, R.O.C., and School of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, R.O.C
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A selective Cu(II)/Fe(III)-mediated hydrogenation of steroidal haloalkenes in the presence of hydrazine. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(02)02875-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Transition metal complexes with sulfur ligands. Part CLV.11For Part CLIV see Ref. [1], Eur. J. Inorg. Chem., in press. Structural and spectroscopic characterization of hydrogen bridge diastereomers of [μ-N2H2{Fe(PR3)(‘tpS4’)}2] diazene complexes (‘tpS4’2−=1,2-bis(2-mercaptophenylthio)phenylene(2−)). Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(02)00987-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Martin JML, Taylor PR. Benchmark ab initio thermochemistry of the isomers of diimide, N2H2, using accurate computed structures and anharmonic force fields. Mol Phys 1999. [DOI: 10.1080/00268979909483004] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mineva T, Russo N, Sicilia E. Solvation effects on reaction profiles by the polarizable continuum model coupled with the Gaussian density functional method. J Comput Chem 1998. [DOI: 10.1002/(sici)1096-987x(199802)19:3<290::aid-jcc3>3.0.co;2-o] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Han JY, Swarts JC, Sykes AG. Kinetic Studies on the Hydrazine and Phenylhydrazine Reductions of the Escherichia coli R2 Subunit of Ribonucleotide Reductase. Inorg Chem 1996. [DOI: 10.1021/ic9515012] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Joo-Yeon Han
- Department of Chemistry, The University of Newcastle, Newcastle upon Tyne NE1 7RU, U.K
| | - Jannie C. Swarts
- Department of Chemistry, The University of Newcastle, Newcastle upon Tyne NE1 7RU, U.K
| | - A. Geoffrey Sykes
- Department of Chemistry, The University of Newcastle, Newcastle upon Tyne NE1 7RU, U.K
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Johnson MD, Hornstein BJ. Kinetics and mechanism of the ferrate oxidation of hydrazine and monomethylhydrazine. Inorganica Chim Acta 1994. [DOI: 10.1016/0020-1693(94)04041-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Cheng TY, Ponce A, Hillhouse GL, Rheingold AL. Hydroxylamin, Hydrazin und Diazen als einzähnige Liganden in Ruthenium- und Osmiumkomplexen. Angew Chem Int Ed Engl 1994. [DOI: 10.1002/ange.19941060623] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Selected recent publications of R.A. Back. INT J CHEM KINET 1994. [DOI: 10.1002/kin.550260103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Biehl H, Stuhl F. Vacuum‐ultraviolet photolysis of N2H2: Generation of NH fragments. J Chem Phys 1994. [DOI: 10.1063/1.466984] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Site-specific DNA damage induced by hydrazine in the presence of manganese and copper ions. The role of hydroxyl radical and hydrogen atom. J Biol Chem 1991. [DOI: 10.1016/s0021-9258(18)52324-3] [Citation(s) in RCA: 88] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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36
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Coyne LM, Costanzo PM, Theng BK. Luminescence and ESR studies of relationships between O(-)-centres and structural iron in natural and synthetically hydrated kaolinites. CLAY MINERALS 1989; 24:671-693. [PMID: 11542170 DOI: 10.1180/claymin.1989.024.4.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Luminescence, induced by dehydration and by wetting with hydrazine and unsymmetrically substituted hydrazine, and related ESR spectra have been observed from several kaolinites, synthetically hydrated kaolinites, and metahalloysites. The amine-wetting luminescence results suggest that intercalation, not a chemiluminescence reaction, is the luminescence trigger. Correlation between hydration-induced luminescence and g = 2 ESR signals associated with O(-)-centres in several natural halloysites, and concurrent diminution of the intensity of both these signal types as a function of aging in two 8.4 angstroms synthetically hydrated, kaolinites, confirm a previously-reported relationship between the luminescence induced by dehydration and in the presence of O(-)-centres (holes, i.e., electron vacancies) in the tetrahedral sheet. Furthermore, the ESR spectra of the 8.4 angstroms hydrate showed a concurrent change in the line shape of the g = 4 signal from a shape usually associated with structural Fe in an ordered kaolinite, to a simpler one typically observed in more disordered kaolinite, halloysite, and montmorillonite. Either structural Fe centres and the O(-)-centres interact, or both are subject to factors previously associated with degree of order. The results question the long-term stability of the 8.4 angstroms hydrate, although XRD does not indicate interlayer collapse over this period. Complex inter-relationships are shown between intercalation, stored energy, structural Fe, and the degree of hydration which may be reflected in catalytic as well as spectroscopic properties of the clays.
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Affiliation(s)
- L M Coyne
- Department of Chemistry, San Jose State University, USA
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Janssen G, Verhulst A, Parmentier G. Location of double bonds in polyenic long-chain carboxylic acids containing a conjugated diene unit. ACTA ACUST UNITED AC 1988. [DOI: 10.1002/bms.1200150102] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Nguyen MT, Hoesch L. Triazene: Anab initio Molecular-Orbital Study of Structure, Properties, and Hydrogen-Transfer Reaction Pathways. Helv Chim Acta 1986. [DOI: 10.1002/hlca.19860690717] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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