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Jiang J, Zhu B, Jiang X, Lu B, Zeng X. Photochemistry of phosphenic chloride (ClPO 2): isomerization with chlorine metaphosphite (ClOPO) and reduction by carbon monoxide. Phys Chem Chem Phys 2022; 24:20828-20836. [PMID: 36040114 DOI: 10.1039/d2cp02986c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phosphenic chloride (ClPO2) is an elusive congener of nitryl chloride (ClNO2). By high-vacuum flash pyrolysis of 2-chloro-1,3,2-dioxaphospholane in the gas phase, ClPO2 has been efficiently generated and subsequently isolated in cryogenic N2, Ar, and CO matrices (10 K) for a first time study on its photochemistry. Upon 193 nm laser irradiation, ClPO2 isomerizes to the novel chlorine metaphosphite (ClOPO) by initial cleavage of the Cl-P bond (→ ˙Cl + ˙PO2) with subsequent Cl-O bond formation inside the N2 and Ar matrix cages. The reverse transformation becomes feasible under further irradiation at 266 nm. This photochemistry is consistent with the observed absorptions of ClPO2 and ClOPO at 207 and 250 nm, respectively. When the photolysis was performed in solid CO ice, no isomerization occurs due to CO-trapping of the initially generated ˙Cl atoms by forming caged radical pair ClCO˙⋯˙PO2. Concomitantly, photolytic reduction of ClPO2 to ClPO by CO has been observed, yielding a weakly bonded molecular complex consisting of ClPO and CO2 bonded through short intermolecular C⋯O contact (2.910 Å). The characterization of ClPO, ClPO2, ClOPO, and the molecular complexes of ClPO2-CO and ClPO-CO2 using matrix-isolation IR and UV-vis spectroscopy is supported by the theoretical calculations at the B3LYP/6-311 + G(3df) level, and the photochemistry of ClPO2 is also compared with the revisited photochemistry of ClNO2 in the N2-matrix.
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Affiliation(s)
- Junjie Jiang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai, 200433, China.
| | - Bifeng Zhu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai, 200433, China.
| | - Xin Jiang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai, 200433, China.
| | - Bo Lu
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai, 200433, China.
| | - Xiaoqing Zeng
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai, 200433, China.
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He LX, Liu XD, Zheng XT, Dong YQ, Bai WB, Lin YC, Jian RK. A versatile phosphorothioate bearing benzimidazole for the preparation of flame retardant, mechanically strong and high transparency epoxy resins. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110056] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Liu D, Ji P, Zhang T, Lv J, Cui Y. A bi-DOPO type of flame retardancy epoxy prepolymer: Synthesis, properties and flame-retardant mechanism. Polym Degrad Stab 2021. [DOI: 10.1016/j.polymdegradstab.2021.109629] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Abbenseth J, Wätjen F, Finger M, Schneider S. The Metaphosphite (PO
2
−
) Anion as a Ligand. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Josh Abbenseth
- Universität Göttingen Institut für Anorganische Chemie Tammannstrasse 4 37077 Göttingen Germany
| | - Florian Wätjen
- Universität Göttingen Institut für Anorganische Chemie Tammannstrasse 4 37077 Göttingen Germany
| | - Markus Finger
- Universität Göttingen Institut für Anorganische Chemie Tammannstrasse 4 37077 Göttingen Germany
| | - Sven Schneider
- Universität Göttingen Institut für Anorganische Chemie Tammannstrasse 4 37077 Göttingen Germany
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Abbenseth J, Wätjen F, Finger M, Schneider S. The Metaphosphite (PO 2 - ) Anion as a Ligand. Angew Chem Int Ed Engl 2020; 59:23574-23578. [PMID: 32936501 PMCID: PMC7756739 DOI: 10.1002/anie.202011750] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Indexed: 12/18/2022]
Abstract
The utilization of monomeric, lower phosphorous oxides and oxoanions, such as metaphosphite (PO2 - ), which is the heavier homologue of the common nitrite anion but previously only observed in the gas phase and by matrix isolation, requires new synthetic strategies. Herein, a series of rhenium(I-III) complexes with PO2 - as ligand is reported. Synthetic access was enabled by selective oxygenation of a terminal phosphide complex. Spectroscopic and computational examination revealed slightly stronger σ-donor and comparable π-acceptor properties of PO2 - compared to homologous NO2 - , which is one of the archetypal ligands in coordination chemistry.
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Affiliation(s)
- Josh Abbenseth
- Universität GöttingenInstitut für Anorganische ChemieTammannstrasse 437077GöttingenGermany
| | - Florian Wätjen
- Universität GöttingenInstitut für Anorganische ChemieTammannstrasse 437077GöttingenGermany
| | - Markus Finger
- Universität GöttingenInstitut für Anorganische ChemieTammannstrasse 437077GöttingenGermany
| | - Sven Schneider
- Universität GöttingenInstitut für Anorganische ChemieTammannstrasse 437077GöttingenGermany
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Chu X, Qian W, Lu B, Wang L, Qin J, Li J, Rauhut G, Trabelsi T, Francisco JS, Zeng X. The Triplet Hydroxyl Radical Complex of Phosphorus Monoxide. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xianxu Chu
- College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Weiyu Qian
- College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Bo Lu
- College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
| | - Lina Wang
- Department of Chemistry Fudan University Shanghai 200433 China
| | - Jie Qin
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry Chongqing University Chongqing 401331 China
| | - Jun Li
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry Chongqing University Chongqing 401331 China
| | - Guntram Rauhut
- Institute for Theoretical Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Tarek Trabelsi
- Department of Earth and Environment Science and Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6243 USA
| | - Joseph S. Francisco
- Department of Earth and Environment Science and Department of Chemistry University of Pennsylvania Philadelphia Pennsylvania 19104-6243 USA
| | - Xiaoqing Zeng
- College of Chemistry Chemical Engineering and Materials Science Soochow University Suzhou 215123 China
- Department of Chemistry Fudan University Shanghai 200433 China
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Chu X, Qian W, Lu B, Wang L, Qin J, Li J, Rauhut G, Trabelsi T, Francisco JS, Zeng X. The Triplet Hydroxyl Radical Complex of Phosphorus Monoxide. Angew Chem Int Ed Engl 2020; 59:21949-21953. [PMID: 33073924 DOI: 10.1002/anie.202011512] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Indexed: 01/07/2023]
Abstract
Phosphorus monoxide (. PO) is a key intermediate in phosphorus chemistry, and its association with the hydroxyl radical (. OH) to yield metaphosphorous acid (cis-HOPO) contributes to the chemiluminescence in the combustion of phosphines. When photolyzing cis-HOPO in an Ar-matrix at 2.8 K, the simplest dioxophosphorane HPO2 and an elusive hydroxyl radical complex (HRC) of . PO form. This prototypical radical-radical complex reforms into cis-HOPO at above 12.0 K by overcoming a barrier of 0.28±0.02 kcal mol-1 . The vibrational spectra of this HRC and its D- and 18 O-isotopologues suggest a structure of . OH⋅⋅⋅OP. , for which a triplet spin multiplicity with a binding energy of -3.20 kcal mol-1 has been computed at the UCCSD(T)-F12a/aug-cc-pVTZ level.
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Affiliation(s)
- Xianxu Chu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Weiyu Qian
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Bo Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Lina Wang
- Department of Chemistry, Fudan University, Shanghai, 200433, China
| | - Jie Qin
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, China
| | - Jun Li
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, China
| | - Guntram Rauhut
- Institute for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Tarek Trabelsi
- Department of Earth and Environment Science and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania, 19104-6243, USA
| | - Joseph S Francisco
- Department of Earth and Environment Science and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania, 19104-6243, USA
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
- Department of Chemistry, Fudan University, Shanghai, 200433, China
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