1
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Baris N, Dračínský M, Tarábek J, Filgas J, Slavíček P, Ludvíková L, Boháčová S, Slanina T, Klepetářová B, Beier P. Photocatalytic Generation of Trifluoromethyl Nitrene for Alkene Aziridination. Angew Chem Int Ed Engl 2024; 63:e202315162. [PMID: 38081132 DOI: 10.1002/anie.202315162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Indexed: 01/06/2024]
Abstract
N-Trifluoromethylated organics may be applied in drug design, agrochemical synthesis, and materials science, among other areas. Yet, despite recent advances in the synthesis of aliphatic, cyclic and heterocyclic N-trifluoromethyl compounds, no strategy based on trifluoromethyl nitrene has hitherto been explored. Here we describe the formation of triplet trifluoromethyl nitrene from azidotrifluoromethane, a stable and safe-to-use precursor, by visible light photocatalysis. The addition of CF3 N to alkenes via biradical intermediates afforded previously unknown aziridines substituted with trifluoromethyl group on the nitrogen atom. The obtained aziridines were converted into either N-trifluoromethylimidazolines, via formal [3+2] cycloaddition with nitriles, mediated by a Lewis acid, or into N-trifluoromethylaldimines, via ring opening and aryl group migration mediated by a strong Brønsted acid. Our findings open new opportunities for the development of novel classes of N-CF3 compounds with possible applications in the life sciences.
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Affiliation(s)
- Norbert Baris
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43, Prague, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Ján Tarábek
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Josef Filgas
- Department of Physical Chemistry, University of Chemistry and Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Petr Slavíček
- Department of Physical Chemistry, University of Chemistry and Technology, Technická 5, 166 28, Prague, Czech Republic
| | - Lucie Ludvíková
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Soňa Boháčová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Tomáš Slanina
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Blanka Klepetářová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
| | - Petr Beier
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, 166 00, Prague 6, Czech Republic
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2
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Wu Z, Zeng X. Curtius-Type Rearrangement of Sulfinyl Azides: A Matrix Isolation and Computational Study. J Phys Chem A 2022; 126:4367-4375. [PMID: 35771242 DOI: 10.1021/acs.jpca.2c02469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The highly unstable methyl sulfinyl azide, CH3S(O)N3, has been synthesized and characterized for the first time. In the gas phase, CH3S(O)N3 decomposes quickly at room temperature (300 K) with an estimated half-life (t1/2) of 7 min. Upon irradiation at 266 nm in cryogenic Ar (10 K) and Ne (3 K) matrices, the azide extrudes molecular nitrogen by yielding the novel sulfinyl nitrene intermediate CH3S(O)N in the closed-shell singlet ground state, which has been characterized with matrix-isolation IR and UV-vis spectroscopy. Prolonged irradiation at 266 nm causes Curtius rearrangement of the nitrene to form N-sulfinylamine CH3NSO and S-nitrosothiol CH3SNO. By high-vacuum flash pyrolysis (HVFP) at 800 K, CH3S(O)N3 also decomposes and furnishes CH3S(O)N with minor fragmentation products HNSO and CH2 in the gas phase. A similar photo-induced Curtius-type rearrangement of trifluoromethyl sulfinyl azide CF3S(O)N3 to CF3NSO and CF3SNO has also been observed in matrices. According to the theoretical calculations at the CCSD(T)/aug-cc-pVTZ//B3LYP/6-311++G (3df,3pd) level of theory, the rearrangement of CH3S(O)N3 prefers a stepwise pathway by initial formation of the nitrene intermediate CH3S(O)N. In line with the thermal persistence of CH3S(O)N in the gas phase, the barriers for its subsequent rearrangement are higher than 30 kcal mol-1.
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Affiliation(s)
- Zhuang Wu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200437, China
| | - Xiaoqing Zeng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200437, China
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3
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Godara S, Radhakrishnan A, Paranjothy M. Chemical Dynamics Simulations of Curtius Reaction of Acetyl- and Fluorocarbonyl Azides. J Phys Chem A 2020; 124:6438-6444. [PMID: 32668155 DOI: 10.1021/acs.jpca.0c04366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Curtius rearrangement is the elimination of N2 from carbonyl azides RC(O)N3 to form isocyanates RNCO. Two mechanisms, viz., stepwise and concerted have been proposed in the literature for this reaction. The stepwise mechanism involves the formation of a nitrene RC(O)N by elimination of N2 followed by an intramolecular rearrangement of the nitrene to form the isocyanate. The concerted mechanism is a single-step pathway forming the N2 + RNCO products directly. Previous experimental and theoretical studies have indicated that the mechanism is usually concerted for thermal reactions and both stepwise and concerted are preferred under photochemical conditions. In the present work, we investigated the mechanism of Curtius rearrangement of two carbonyl azides with different substituents (R = CH3 and F). Atomic level reaction mechanisms were studied using chemical dynamics simulations under thermal reaction conditions. Classical trajectories were generated on-the-fly at the density functional B3LYP/6-31+G* level of electronic structure theory with similar initial conditions for both the molecules. Simulation results showed a dominant concerted mechanism for CH3C(O)N3 and the operation of both the mechanisms for FC(O)N3. The fluorocarbonyl nitrene FC(O)N had an appreciable lifetime before undergoing intramolecular rearrangement to form the isocyanate. In a small number of trajectories, the product isocyanate produced via the concerted dissociation of FC(O)N3, isomerized back to the nitrene form.
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Affiliation(s)
- Sumitra Godara
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, 342037 Rajasthan, India
| | - Anjali Radhakrishnan
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, 342037 Rajasthan, India
| | - Manikandan Paranjothy
- Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, 342037 Rajasthan, India
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4
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Lu B, Qin Y, Lu Y, Liu Q, Zeng X. Acryloylnitrenes: Spectroscopic Characterization, Spin Multiplicities, and Rearrangement to Vinyl Isocyanates. J Phys Chem A 2020; 124:6319-6329. [PMID: 32660245 DOI: 10.1021/acs.jpca.0c04204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The simplest acryloylnitrene, CH2═CHC(O)N (1b), and two halogenated derivatives, CH2═CFC(O)N (2b) and CH2═CBrC(O)N (3b), were generated through the 266 nm laser photolysis of the corresponding azide precursors in solid N2-matrices at 15 K. The IR spectroscopic characterization of these new acylnitrenes is supported by 15N-labeling and quantum chemical calculations at the B3LYP/6-311++G(3df,3pd) level of theory. For the three nitrenes 1b, 2b, and 3b, two conformers exhibiting syn and anti configurations between the C═C and C═O bonds with respect to the C-C bonds have been identified. Consistent with the CBS-QB3 calculated singlet-triplet energy gaps (ΔEST < 0 kcal mol-1), the IR spectral analysis suggests that all these acryloylnitrenes adopt oxazirine-like structures with closed-shell singlet spin multiplicity. Upon subsequent green light (532 nm) irradiation, these acryloylnitrenes rearrange to form vinyl isocyanates CH2═CXNCO (X = H, F, Br), for which the IR spectra have also been obtained. According to the calculations on the α,β-fluorinated acryloylnitrenes at the CBS-QB3 level, their spin multiplicities can be switched from singlet CH2═CFC(O)N (ΔEST = -0.86 kcal mol-1) to triplet CF2═CFC(O)N (ΔEST = +0.61 kcal mol-1), whereas CFH═CFC(O)N is magnetically bistable due to a rather small ΔEST (+0.09 kcal mol-1).
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Affiliation(s)
- Bo Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Yuanyuan Qin
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Yan Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Qian Liu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China.,Department of Chemistry, Fudan University, Shanghai 200433, China
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5
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Liu Q, Qin Y, Lu Y, Wentrup C, Zeng X. Spectroscopic Characterization of Nicotinoyl and Isonicotinoyl Nitrenes and the Photointerconversion of 4-Pyridylnitrene with Diazacycloheptatetraene. J Phys Chem A 2019; 123:3793-3801. [PMID: 30978289 DOI: 10.1021/acs.jpca.9b01680] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recently, nicotinoyl nitrene (2) has been generated from the photodecomposition of nicotinoyl azide (1) and used as the key intermediate in probing nucleobase solvent accessibility inside cells. Following the 266 nm laser photolysis of nicotinoyl azide (1) and isonicotinoyl azide (5) in solid N2 matrices at 15 K, nicotinoyl nitrene (2) and isonicotinoyl nitrene (6) have now been identified by matrix-isolation infrared (IR) spectroscopy. Both aroyl nitrenes 2 and 6 adopt closed-shell singlet ground states stabilized by significant Nnitrene···O interactions, which is consistent with the spectroscopic analysis and calculations at the CBS-QB3 level of theory. Upon subsequent visible light irradiations, 2 (400 ± 20 nm) and 6 (532 nm) undergo rearrangement to pyridyl isocyanates 3 and 7. Further dissociation of 3 and 7 under 193 nm laser irradiation results in CO elimination and formation of ketenimines 12 and 13 via the ring opening of elusive pyridyl nitrenes 4 and 8, respectively. In addition to the IR spectroscopic identification of 8 in the triplet ground state, its reversible photointerconversion with ring expansion to diazacycloheptatetraene 9 has been observed directly. The spectroscopic identification of the nitrene intermediates was aided by calculations at the B3LYP/6-311++G(3df,3pd) level, and the mechanism for their generation in stepwise decompositions of the azides is discussed in the light of CBS-QB3 calculations.
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Affiliation(s)
- Qian Liu
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , 215123 Suzhou , China
| | - Yuanyuan Qin
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , 215123 Suzhou , China
| | - Yan Lu
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , 215123 Suzhou , China
| | - Curt Wentrup
- School of Chemistry and Molecular Biosciences , The University of Queensland , Brisbane , Queensland 4072 , Australia
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science , Soochow University , 215123 Suzhou , China
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6
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Chloro- and Dichloro-methylsulfonyl Nitrenes: Spectroscopic Characterization, Photoisomerization, and Thermal Decomposition. Molecules 2018; 23:molecules23123312. [PMID: 30551679 PMCID: PMC6321523 DOI: 10.3390/molecules23123312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 12/18/2022] Open
Abstract
Chloro- and dichloro-methylsulfonyl nitrenes, CH₂ClS(O)₂N and CHCl₂S(O)₂N, have been generated from UV laser photolysis (193 and 266 nm) of the corresponding sulfonyl azides CH₂ClS(O)₂N₃ and CHCl₂S(O)₂N₃, respectively. Both nitrenes have been characterized with matrix-isolation IR and EPR spectroscopy in solid N₂ (10 K) and glassy toluene (5 K) matrices. Triplet ground-state multiplicity of CH₂ClS(O)₂N (|D/hc| = 1.57 cm-1 and |E/hc| = 0.0026 cm-1) and CHCl₂S(O)₂N (|D/hc| = 1.56 cm-1 and |E/hc| = 0.0042 cm-1) has been confirmed. In addition, dichloromethylnitrene CHCl₂N (|D/hc| = 1.57 cm-1 and |E/hc| = 0 cm-1), formed from SO₂-elimination in CHCl₂S(O)₂N, has also been identified for the first time. Upon UV light irradiation (365 nm), the two sulfonyl nitrenes R⁻S(O)₂N (R = CH₂Cl and CHCl₂) undergo concomitant 1,2-R shift to N-sulfonlyamines R⁻NSO₂ and 1,2-oxygen shift to S-nitroso compounds R⁻S(O)NO, respectively. The identification of these new species with IR spectroscopy is supported by 15N labeling experiments and quantum chemical calculations at the B3LYP/6-311++G(3df,3pd) level. In contrast, the thermally-generated sulfonyl nitrenes CH₂ClS(O)₂N (600 K) and CHCl₂S(O)₂N (700 K) dissociate completely in the gas phase, and in both cases, HCN, SO₂, HCl, HNSO, and CO form. Additionally, ClCN, OCCl₂, HNSO₂, •NSO₂, and the atmospherically relevant radical •CHCl₂ are also identified among the fragmentation products of CHCl₂S(O)₂N. The underlying mechanisms for the rearrangement and decomposition of CH₂ClS(O)₂N and CHCl₂S(O)₂N are discussed based on the experimentally-observed products and the calculated potential energy profile.
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7
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Liu Q, Wan H, Lu Y, Lu B, Zeng X. Photodecomposition of 1H
-Pyrrole Carbonyl Azides: Direct Observation of Singlet 1H
-Pyrrole Carbonyl Nitrenes and Triplet 1H
-3-Pyrrylnitrene. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800830] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Qian Liu
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
| | - Huabin Wan
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
| | - Yan Lu
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
| | - Bo Lu
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
| | - Xiaoqing Zeng
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; 215123 Suzhou China
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8
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Wentrup C. Carbenes and Nitrenes: Recent Developments in Fundamental Chemistry. Angew Chem Int Ed Engl 2018; 57:11508-11521. [DOI: 10.1002/anie.201804863] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Curt Wentrup
- School of Chemistry and Molecular BiosciencesThe University of Queensland Brisbane Qld 4072 Australia
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9
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Wentrup C. Carbene und Nitrene: Aktuelle Entwicklungen in der Grundlagenchemie. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804863] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Curt Wentrup
- School of Chemistry and Molecular Biosciences; The University of Queensland; Brisbane Qld 4072 Australien
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10
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Xie BB, Cui CX, Fang WH, Cui G. Photoinduced Curtius rearrangements of fluorocarbonyl azide, FC(O)N 3: a QM/MM nonadiabatic dynamics simulation. Phys Chem Chem Phys 2018; 20:19363-19372. [DOI: 10.1039/c8cp02651c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Upon either photolysis or pyrolysis, carbonyl azide can eliminate molecular nitrogen along with the formation of isocyanate.
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Affiliation(s)
- Bin-Bin Xie
- Hangzhou Institute of Advanced Studies
- Zhejiang Normal University
- Hangzhou 311231
- P. R. China
- Key Laboratory of Theoretical and Computational Photochemistry
| | - Cheng-Xing Cui
- School of Chemistry and Chemical Engineering
- Henan Institute of Science and Technology
- Xinxiang 453003
- P. R. China
| | - Wei-Hai Fang
- Hangzhou Institute of Advanced Studies
- Zhejiang Normal University
- Hangzhou 311231
- P. R. China
- Key Laboratory of Theoretical and Computational Photochemistry
| | - Ganglong Cui
- Key Laboratory of Theoretical and Computational Photochemistry
- Ministry of Education College of Chemistry
- Beijing Normal University
- Beijing 100875
- P. R. China
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11
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Wu Z, Feng R, Li H, Xu J, Deng G, Abe M, Bégué D, Liu K, Zeng X. Fast Heavy-Atom Tunneling in Trifluoroacetyl Nitrene. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201710307] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhuang Wu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Ruijuan Feng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Hongmin Li
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Jian Xu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Guohai Deng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Manabu Abe
- Department of Chemistry, Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama, Higashi-Hiroshima Hiroshima 739-8526 Japan
| | - Didier Bégué
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR5254; CNRS/ UNIV PAU & Pays Adour; Pau 64000 France
| | - Kun Liu
- College of Chemistry; Tianjin Normal University; Tianjin 300387 China
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
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12
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Wu Z, Feng R, Li H, Xu J, Deng G, Abe M, Bégué D, Liu K, Zeng X. Fast Heavy-Atom Tunneling in Trifluoroacetyl Nitrene. Angew Chem Int Ed Engl 2017; 56:15672-15676. [DOI: 10.1002/anie.201710307] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Zhuang Wu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Ruijuan Feng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Hongmin Li
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Jian Xu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Guohai Deng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Manabu Abe
- Department of Chemistry, Graduate School of Science; Hiroshima University; 1-3-1 Kagamiyama, Higashi-Hiroshima Hiroshima 739-8526 Japan
| | - Didier Bégué
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR5254; CNRS/ UNIV PAU & Pays Adour; Pau 64000 France
| | - Kun Liu
- College of Chemistry; Tianjin Normal University; Tianjin 300387 China
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
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13
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Wan H, Xu J, Liu Q, Li H, Lu Y, Abe M, Zeng X. Contrasting Photolytic and Thermal Decomposition of Phenyl Azidoformate: The Curtius Rearrangement Versus Intramolecular C–H Amination. J Phys Chem A 2017; 121:8604-8613. [DOI: 10.1021/acs.jpca.7b07969] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huabin Wan
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Jian Xu
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Qian Liu
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Hongmin Li
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Yan Lu
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
| | - Manabu Abe
- Department
of Chemistry, Graduate School of Science, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Xiaoqing Zeng
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, P. R. China
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14
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Bégué D, Santos-Silva H, Dargelos A, Wentrup C. Imidoylnitrenes R′C(═NR)–N, Nitrile Imines, 1H-Diazirines, and Carbodiimides: Interconversions and Rearrangements, Structures, and Energies at DFT and CASPT2 Levels of Theory. J Phys Chem A 2017; 121:8227-8235. [DOI: 10.1021/acs.jpca.7b08445] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Didier Bégué
- Institut
Pluridisciplinaire de Recherche sur l’Environnement et les
Matériaux, Université de Pau et des Pays de l’Adour, 64000 Pau, France
| | - Hugo Santos-Silva
- Institut
Pluridisciplinaire de Recherche sur l’Environnement et les
Matériaux, Université de Pau et des Pays de l’Adour, 64000 Pau, France
| | - Alain Dargelos
- Institut
Pluridisciplinaire de Recherche sur l’Environnement et les
Matériaux, Université de Pau et des Pays de l’Adour, 64000 Pau, France
| | - Curt Wentrup
- School
of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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15
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Peng XL, Ding WL, Li QS, Li ZS. Theoretical insights into photo-induced Curtius rearrangement of chlorodifluoroacetyl azide. Org Chem Front 2017. [DOI: 10.1039/c7qo00083a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism of photo-induced Curtius rearrangement is a two-step reaction with a nitrene intermediate.
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Affiliation(s)
- Xing-Liang Peng
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
| | - Wei-Lu Ding
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
| | - Quan-Song Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
| | - Ze-Sheng Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
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16
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Wan H, Li H, Xu J, Wu Z, Liu Q, Chu X, Abe M, Bégué D, Zeng X. N-Methylcarbamoyl azide: spectroscopy, X-ray structure and decomposition via methylcarbamoyl nitrene. Org Chem Front 2017. [DOI: 10.1039/c7qo00277g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Methylcarbamoyl azide has been characterized and the nitrene intermediate in its Curtius-rearrangement has been observed in two conformations by matrix-isolation IR and EPR spectroscopy.
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Affiliation(s)
- Huabin Wan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Hongmin Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Jian Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Zhuang Wu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Qifan Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Xianxu Chu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
| | - Manabu Abe
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Higashi-Hiroshima
- Japan
| | - Didier Bégué
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM)
- Université de Pau et des Pays de l'Adour
- Pau
- France
| | - Xiaoqing Zeng
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- P. R. China
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17
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Li H, Wu Z, Li D, Wan H, Xu J, Abe M, Zeng X. Direct observation of methoxycarbonylnitrene. Chem Commun (Camb) 2017; 53:4783-4786. [DOI: 10.1039/c7cc01926b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Methoxycarbonylnitrene CH3OC(O)N, the missing link in the frequently studied Curtius-rearrangement of CH3OC(O)N has been directly observed by using matrix-isolation IR and EPR spectroscopy.
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Affiliation(s)
- Hongmin Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Jiangsu 215123
- China
| | - Zhuang Wu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Jiangsu 215123
- China
| | - Dingqing Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Jiangsu 215123
- China
| | - Huabin Wan
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Jiangsu 215123
- China
| | - Jian Xu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Jiangsu 215123
- China
| | - Manabu Abe
- Department of Chemistry
- Graduate School of Science
- Hiroshima University
- Hiroshima 739-8526
- Japan
| | - Xiaoqing Zeng
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Jiangsu 215123
- China
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18
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Liu Q, Li H, Wu Z, Li D, Beckers H, Rauhut G, Zeng X. Photolysis of Carbonyl Diisocyanate: Generation of Isocyanatocarbonyl Nitrene and Diazomethanone. Chem Asian J 2016; 11:2953-2959. [DOI: 10.1002/asia.201601073] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Qifan Liu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P. R. China
| | - Hongmin Li
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P. R. China
| | - Zhuang Wu
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P. R. China
| | - Dingqing Li
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P. R. China
| | - Helmut Beckers
- Institut für Chemie und Biochemie; Freie Universität Berlin; Berlin 14195 Germany
| | - Guntram Rauhut
- Institute of Theoretical Chemistry; University of Stuttgart; Stuttgart 70569 Germany
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P. R. China
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19
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Chavez TA, Liu Y, Toscano JP. Time-Resolved Infrared (TRIR) Studies of Oxycarbonylnitrenes. J Org Chem 2016; 81:6320-8. [DOI: 10.1021/acs.joc.6b00949] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tyler A. Chavez
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Yonglin Liu
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - John P. Toscano
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
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20
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Li H, Wan H, Wu Z, Li D, Bégué D, Wentrup C, Zeng X. Direct Observation of Carbamoylnitrenes. Chemistry 2016; 22:7856-62. [DOI: 10.1002/chem.201600824] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Hongmin Li
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Huabin Wan
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Zhuang Wu
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Dingqing Li
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Didier Bégué
- Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM); Université de Pau et des Pays de l'Adour; 64000 Pau France
| | - Curt Wentrup
- School of Chemistry and Molecular Biosciences; The University of Queensland; 4072 Brisbane, Queensland Australia
| | - Xiaoqing Zeng
- The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou; College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
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21
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Li H, Wu Z, Li D, Zeng X, Beckers H, Francisco JS. A Singlet Thiophosphoryl Nitrene and Its Interconversion with Thiazyl and Thionitroso Isomers. J Am Chem Soc 2015; 137:10942-5. [PMID: 26275526 DOI: 10.1021/jacs.5b07302] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Thiophosphoryl nitrenes, R2P(S)N, are thiazirine-like intermediates that have been chemically inferred from trapping products in early solution studies. In this work, photolysis of the simplest thiophosphoryl azide, F2P(S)N3, in solid noble-gas matrices enabled a first-time spectroscopic (IR and UV-vis) identification of the thiophosphoryl nitrene F2P(S)N in its singlet ground state. Upon visible-light irradiation (≥495 nm), it converts into the thionitroso isomer F2P-N═S, which can also be produced in the gas phase from flash vacuum pyrolysis of F2P(S)N3. Further irradiation of F2P-NS with 365 nm UV light leads to the reformation of F2P(S)N and isomerization to the thiazyl species F2P-S≡N.
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Affiliation(s)
- Hongmin Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Zhuang Wu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Dingqing Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, China
| | - Helmut Beckers
- Institut für Chemie und Biochemie, Freie Universität Berlin , D-14195 Berlin, Germany
| | - Joseph S Francisco
- Department of Chemistry, Purdue University , West Lafayette, Indiana 47907, United States
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22
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Li H, Li D, Zeng X, Liu K, Beckers H, Schaefer HF, Esselman BJ, McMahon RJ. Toward Understanding the Decomposition of Carbonyl Diazide (N3)2C═O and Formation of Diazirinone cycl-N2CO: Experiment and Computations. J Phys Chem A 2015. [PMID: 26218716 DOI: 10.1021/acs.jpca.5b04586] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Carbonyl diazide, (N3)2CO (I), is a highly explosive compound. The isolation of the substance in a neat form was found to provide unique access to two other high-energy molecules, namely, N3-NCO (III) and cycl-N2CO (IV), among the decomposition products of (I). To understand the underlying reaction mechanism, the decomposition reactions including the thermal conversion of two conformers of (I) were revisited, and the potential energy surface (PES) was computationally explored by using the methods of B3LYP/6-311+G(3df) and CBS-QB3. The most stable syn-syn structure (I) readily converts into the syn-anti conformer (ΔHexptl = 1.1 ± 0.5 kcal mol(-1)), which undergoes decomposition in two competing pathways: a concerted path to N3-NCO (III) or a stepwise route to (III) via the nitrene intermediate N3C(O)N (1)(II). The calculated activation barriers (Ea) are almost the same (∼33 kcal mol(-1), B3LYP/6-311+G(3df)). Further decomposition of (III) occurs through a concerted fragmentation into 2 N2 + CO with a moderate Ea of 22 kcal mol(-1), and this process is compared to the isoelectronic species N3-N3 → 3 N2 (Ea = 17 kcal mol(-1)) and OCN-NCO → N2 + 2 CO (61 kcal mol(-1)). No low-energy pathway leading to (IV) was found on the singlet PES. However, the intervention of triplet ground-state (3)(II) from the initially generated (1)(II) through an intersystem crossing (ISC) offers a likely approach to (IV); that is, (3)(II) can decompose in a concerted process (Ea = 30 kcal mol(-1)) by eliminating one N2 to yield the disfavored OCNN (3)(VI). A careful intrinsic reaction coordinate analysis and a combined energy scan of the N-C-N angle reveals a bifurcation point on this triplet PES, which allows a spin crossover to the singlet PES along the reaction coordinate and eventually leads to the formation of the metastable diazirinone (IV).
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Affiliation(s)
- Hongmin Li
- †College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, P. R. China
| | - Dingqing Li
- †College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, P. R. China
| | - Xiaoqing Zeng
- †College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, P. R. China
| | - Kun Liu
- ¶College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Helmut Beckers
- ‡Institut für Chemie und Biochemie, Freie Universität Berlin, D-14195 Berlin, Germany
| | - Henry F Schaefer
- §Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30677, United States
| | - Brian J Esselman
- ⊥Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1322, United States
| | - Robert J McMahon
- ⊥Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, Wisconsin 53706-1322, United States
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23
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Sun H, Zhu B, Wu Z, Zeng X, Beckers H, Jenks WS. Thermally Persistent Carbonyl Nitrene: FC(O)N. J Org Chem 2015; 80:2006-9. [DOI: 10.1021/jo502821y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Hailong Sun
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, China
| | - Bifeng Zhu
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, China
| | - Zhuang Wu
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, China
| | - Xiaoqing Zeng
- College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Jiangsu 215123, China
| | - Helmut Beckers
- Institut
für Chemie und Biochemie, Freie Universität Berlin, D-14195 Berlin, Germany
| | - William S. Jenks
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011-3111, United States
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24
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Li D, Li H, Zhu B, Zeng X, Willner H, Beckers H, Neuhaus P, Grote D, Sander W. Decomposition of fluorophosphoryl diazide: a joint experimental and theoretical study. Phys Chem Chem Phys 2015; 17:6433-9. [DOI: 10.1039/c4cp05694a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stepwise decomposition of fluorophosphoryl diazide (FP(O)(N3)2), via nitrene (FP(O)(N3)N) and the cyclic intermediate (FP(O)N2), was experimentally and theoretically studied.
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Affiliation(s)
- Dingqing Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- China
| | - Hongmin Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- China
| | - Bifeng Zhu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- China
| | - Xiaoqing Zeng
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- China
| | - Helge Willner
- FB C-Anorganische Chemie
- Bergische Universität Wuppertal
- 42119 Wuppertal
- Germany
| | - Helmut Beckers
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Patrik Neuhaus
- Lehrstuhl für Organische Chemie II
- Ruhr-Universität Bochum
- 44780 Bochum
- Germany
| | - Dirk Grote
- Lehrstuhl für Organische Chemie II
- Ruhr-Universität Bochum
- 44780 Bochum
- Germany
| | - Wolfram Sander
- Lehrstuhl für Organische Chemie II
- Ruhr-Universität Bochum
- 44780 Bochum
- Germany
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25
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Wu Z, Li H, Zhu B, Zeng X, Hayes SA, Mitzel NW, Beckers H, Berger RJF. Conformational composition, molecular structure and decomposition of difluorophosphoryl azide in the gas phase. Phys Chem Chem Phys 2015; 17:8784-91. [DOI: 10.1039/c5cp00850f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Difluorophosphoryl azide F2P(O)N3 has one dominating conformer in the gas phase at ambient temperature. It decomposes upon flash vacuum pyrolysis to the hitherto unknown nitrene F2P(O)N.
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Affiliation(s)
- Zhuang Wu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- China
| | - Hongmin Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- China
| | - Bifeng Zhu
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- China
| | - Xiaoqing Zeng
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- 215123 Suzhou
- China
| | - Stuart A. Hayes
- Lehrstuhl für Anorganische Chemie und Strukturchemie
- Centre for Molecular Materials CM2
- D-33615 Bielefeld
- Germany
| | - Norbert W. Mitzel
- Lehrstuhl für Anorganische Chemie und Strukturchemie
- Centre for Molecular Materials CM2
- D-33615 Bielefeld
- Germany
| | - Helmut Beckers
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
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26
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Nunes CM, Araujo-Andrade C, Fausto R, Reva I. Generation and Characterization of a 4π-Electron Three-Membered Ring 1H-Diazirine: An Elusive Intermediate in Nitrile Imine–Carbodiimide Isomerization. J Org Chem 2014; 79:3641-6. [DOI: 10.1021/jo402744f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Cláudio M. Nunes
- Department
of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Cuauhtémoc Araujo-Andrade
- Department
of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
- Unidad
Académica de Física, Autonomous University of Zacatecas, 98060 Zacatecas, ZAC, Mexico
| | - Rui Fausto
- Department
of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
| | - Igor Reva
- Department
of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
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27
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Zeng X, Beckers H, Willner H. Thermally Persistent Fluorosulfonyl Nitrene and Unexpected Formation of the Fluorosulfonyl Radical. J Am Chem Soc 2013; 135:2096-9. [DOI: 10.1021/ja312073w] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xiaoqing Zeng
- Bergische Universität Wuppertal, FB
C, Mathematik
und Naturwissenschaften, Fachgruppe Chemie, Wuppertal, Germany
| | - Helmut Beckers
- Bergische Universität Wuppertal, FB
C, Mathematik
und Naturwissenschaften, Fachgruppe Chemie, Wuppertal, Germany
| | - Helge Willner
- Bergische Universität Wuppertal, FB
C, Mathematik
und Naturwissenschaften, Fachgruppe Chemie, Wuppertal, Germany
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28
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Ramos LA, Zeng X, Ulic SE, Beckers H, Willner H, Della Védova CO. Chlorodifluoroacetyl Azide, ClF2CC(O)N3: Preparation, Properties, and Decomposition. J Org Chem 2012; 77:6456-62. [DOI: 10.1021/jo3009726] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Luis A. Ramos
- CEQUINOR (UNLP-CONICET), Departamento
de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 esq. 115, 1900 La Plata, Argentina
| | - Xiaoqing Zeng
- Fachbereich
C - Anorganische Chemie, Bergische Universität Wuppertal, 42097 Wuppertal,
Germany
| | - Sonia E. Ulic
- CEQUINOR (UNLP-CONICET), Departamento
de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 esq. 115, 1900 La Plata, Argentina
- Departamento de Ciencias Básicas, Universidad Nacional de Luján, Rutas 5 y 7 (6700),
Luján, Argentina
| | - Helmut Beckers
- Fachbereich
C - Anorganische Chemie, Bergische Universität Wuppertal, 42097 Wuppertal,
Germany
| | - Helge Willner
- Fachbereich
C - Anorganische Chemie, Bergische Universität Wuppertal, 42097 Wuppertal,
Germany
| | - Carlos O. Della Védova
- CEQUINOR (UNLP-CONICET), Departamento
de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, 47 esq. 115, 1900 La Plata, Argentina
- Laboratorio de Servicios a la Industria y al Sistema Científico (UNLP-CIC-CONICET), Buenos Aires, Argentina
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29
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Zeng X, Beckers H, Neuhaus P, Grote D, Sander W. Elusive Fluoro Sulfinyl Nitrite, FS(O)NO, Produced by Photolysis of Matrix-isolated FS(O)2N. Z Anorg Allg Chem 2011. [DOI: 10.1002/zaac.201100396] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Zeng X, Beckers H, Willner H. Elusive O═P≡N, a Rare Example of Phosphorus σ2λ5-Coordination. J Am Chem Soc 2011; 133:20696-9. [DOI: 10.1021/ja2091867] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiaoqing Zeng
- FB C-Mathematik
und Naturwissenschaften-Fachgruppe
Chemie, Bergische Universität Wuppertal, D-42097 Wuppertal,
Germany
| | - Helmut Beckers
- FB C-Mathematik
und Naturwissenschaften-Fachgruppe
Chemie, Bergische Universität Wuppertal, D-42097 Wuppertal,
Germany
| | - Helge Willner
- FB C-Mathematik
und Naturwissenschaften-Fachgruppe
Chemie, Bergische Universität Wuppertal, D-42097 Wuppertal,
Germany
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