1
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Nelson E, Bertke JA, Thanzeel FY, Wolf C. Organometallic Chirality Sensing via "Click"-Like η 6-Arene Coordination with an Achiral Cp*Ru(II) Piano Stool Complex. Angew Chem Int Ed Engl 2024; 63:e202404594. [PMID: 38634562 DOI: 10.1002/anie.202404594] [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: 03/06/2024] [Revised: 04/09/2024] [Accepted: 04/18/2024] [Indexed: 04/19/2024]
Abstract
Piano stool complexes have been studied over many years and found widespread applications in organic synthesis, catalysis, materials and drug development. We now report the first examples of quantitative chiroptical molecular recognition of chiral compounds through click-like η6-arene coordination with readily available half sandwich complexes. This conceptually new approach to chirality sensing is based on irreversible acetonitrile displacement of [Cp*Ru(CH3CN)3]PF6 by an aromatic target molecule, a process that is fast and complete within a few minutes at room temperature. The metal coordination coincides with characteristic circular dichroism inductions that can be easily correlated to the absolute configuration and enantiomeric ratio of the bound molecule. A relay assay that decouples the determination of the enantiomeric composition and of the total sample amount by a practical CD/UV measurement protocol was developed and successfully tested. The introduction of piano stool complexes to the chiroptical sensing realm is mechanistically unique and extends the scope of currently known methods with small-molecule probes that require the presence of amino, alcohol, carboxylate or other privileged functional groups for binding of the target compound. A broad application range including pharmaceutically relevant multifunctional molecules and the use in chromatography-free asymmetric reaction analysis are also demonstrated.
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Affiliation(s)
- Eryn Nelson
- Chemistry Department, Georgetown University, 3700 O St NW, Washington, DC-20057
| | - Jeffery A Bertke
- Chemistry Department, Georgetown University, 3700 O St NW, Washington, DC-20057
| | - F Yushra Thanzeel
- Chemistry Department, Georgetown University, 3700 O St NW, Washington, DC-20057
| | - Christian Wolf
- Chemistry Department, Georgetown University, 3700 O St NW, Washington, DC-20057
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2
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Francis M, Nag E, Roy S. Coordination Chemistry of Bis-Cyclic Alkyl(Amino) Carbene (cAAC)-Supported Di-Phosphorus (P 2 ): An Efficient Route to Donor Base-Stabilized Elusive Di-Phosphorus-Monoxide(P 2 O)-Gold Complex. Chem Asian J 2024; 19:e202300882. [PMID: 38009659 DOI: 10.1002/asia.202300882] [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: 10/08/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023]
Abstract
The stability and reactivity studies of heavier di-atomic group-15 congeners of alkynes, e. g., the di-phosphorus (P≡P) compounds have been the topic of huge interest because of their contrasting transient properties and lower stability compared to those of the stable molecular di-nitrogen (N≡N). Herein, we depict the reactivity studies of the bis-cAAC-stabilized di-phosphorus (P2 ) having an inversely polarized phosphaalkene nature featuring the C=P double bonds with Au(I)Cl. Both the mono-, and the di-aurated phosphaalkenes with the formulae [(Me2 -cAAC=P)2 (AuCl)] (2), and [(Me2 -cAAC=P)2 (AuCl)2 ] (3), respectively have been isolated in the solid state. Moreover, for the first time, we have been able to isolate the cAAC-stabilized tetra-aurated elusive di-phosphorus-monoxide (P2 O) with the formula [(Cy-cAAC=P)-O-(P=cAAC-Cy)(AuCl)4 ] (5) in presence of oxygen. Complexes 2-3, 5 have been structurally characterized by single crystal X-ray diffraction, and further studied by NMR spectroscopy. Our findings reveal significant elongation of the CcAAC -P bonds in 2-3, 5, and the presence of aurophilic interaction in 5. Quantum chemical calculations, including density functional theory (DFT), and energy decomposition analysis coupled with natural orbitals for chemical valence (EDA-NOCV) have been performed to study the electron densities distribution and nature of bonding in 2-3, 5.
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Affiliation(s)
- Maria Francis
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, 517507, India
| | - Ekta Nag
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, 517507, India
| | - Sudipta Roy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati, 517507, India
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3
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Aman M, Dostál L, Růžička A, Růžičková Z, Jambor R. B-substituted group 1 phosphides: synthesis and reactivity. Dalton Trans 2023; 52:16870-16885. [PMID: 37916487 DOI: 10.1039/d3dt02568c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
1-Boryl-8-phosphinonaphthalenes 1-BCy2-8-PCl2-C10H6 (1) and 1-BCy2-8-PPhCl-C10H6 (2) were prepared and used as starting materials for the synthesis of B-substituted phosphides. The reduction of 1 and 2 by Mg provided neutral compounds [1-BCy-8-PCy-C10H6]2 (3) and [1-BCy2-8-PPh-C10H6]2 (4). Compound 3 represents the dimer of phosphinoborane 1-BCy-8-PCy-C10H6 while complex 4 is a rare example of a discrete B ← P coordinated diphosphine. The reduction of 2 by Na or K in THF yielded B-substituted group 1 phosphides [Na(THF)3]+[1-BCy2-8-PPh-C10H6]- (5) and {[K(THF)2]+[1-BCy2-8-PPh-C10H6]-}∞ (6), which structurally resembled bulky group 1 phosphides. Complex 5 showed easy activation of elemental chalcogens E (E = O, S, Se) to give B-substituted chalcogenophosphinites {[Na(THF)2]+[1-BCy2-8-P(E)Ph-C10H6]}2 (E = O (7), S (8), Se (9)) as the products of chalcogen insertion into the P-Na bond. Importantly no oxidation to dichalcogenophosphinates was observed. Compound 5 is tolerant of the CO polar bonds in organic substrates and the reactions of 5 with 2,3-butanedione or an acyl chloride provided {[Na(THF)2]+[1-BCy2-8-P{CHC(O)C(Me)O}Ph-C10H6]-}2 (10) and [1-BCy2-8-P{C(O)tBu}Ph-C10H6] (11). Finally, B-coordinated phosphatetrylenes [1-BCy2-8-P(SnL)Ph-C10H6] (12) and [1-BCy2-8-P(PbL)Ph-C10H6] (13) (L is {2,6-(Me2NCH2)C6H3}-) were also prepared by substitution reactions of 5.
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Affiliation(s)
- Michal Aman
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Libor Dostál
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Zdenka Růžičková
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
| | - Roman Jambor
- Department of General and Inorganic Chemistry, University of Pardubice, 532 10 Pardubice, Czech Republic.
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4
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Kumar P, Sharma U, Ananthnag GS. The Story of Acyl Phosphines: Synthesis, Reactivity, and Catalytic Applications. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Pawan Kumar
- Department of Chemistry, Rajdhani College University of Delhi New Delhi India
| | - Urvashi Sharma
- Department of Chemistry, Rajdhani College University of Delhi New Delhi India
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5
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Casciotti M, Romo-Islas G, Álvarez M, Molina F, Muñoz-Molina JM, Belderrain TR, Rodríguez L. Gold( i) complexes bearing a PNP-type pincer ligand: photophysical properties and catalytic investigations. Dalton Trans 2022; 51:17162-17169. [DOI: 10.1039/d2dt02429b] [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
The synthesis and characterization of two dinuclear and five tetranuclear gold(i) complexes bearing the 2,6-bis(diphenylphosphinomethyl)pyridine diphosphane ligand (DPPMPY) are herein reported.
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Affiliation(s)
- Martina Casciotti
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible, Departamento de Química, Universidad de Huelva, 21007, Huelva, Spain
| | - Guillermo Romo-Islas
- Departament de Química Inorgànica i Orgànica. Secció de Química Inorgànica. Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB). Universitat de Barcelona, 08028 Barcelona, Spain
| | - María Álvarez
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible, Departamento de Química, Universidad de Huelva, 21007, Huelva, Spain
| | - Francisco Molina
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible, Departamento de Química, Universidad de Huelva, 21007, Huelva, Spain
| | - José María Muñoz-Molina
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible, Departamento de Química, Universidad de Huelva, 21007, Huelva, Spain
| | - Tomás R. Belderrain
- Laboratorio de Catálisis Homogénea, Unidad Asociada al CSIC, CIQSO-Centro de Investigación en Química Sostenible, Departamento de Química, Universidad de Huelva, 21007, Huelva, Spain
| | - Laura Rodríguez
- Departament de Química Inorgànica i Orgànica. Secció de Química Inorgànica. Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
- Institut de Nanociència i Nanotecnologia (IN2UB). Universitat de Barcelona, 08028 Barcelona, Spain
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6
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Vosáhlo P, Schulz J, Císařová I, Štěpnička P. Cyclopalladation of a ferrocene acylphosphine and the reactivity of the C-H activated products. Dalton Trans 2021; 50:6232-6244. [PMID: 33871524 DOI: 10.1039/d1dt00668a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Acylphosphines are an attractive subclass of phosphine ligands with specific reactivity and ligating properties. This study describes the synthesis of a ferrocene-based acylphosphine, FcC(O)PPh2 (1, Fc = ferrocenyl), the corresponding phosphine chalcogenides FcC(O)P(E)Ph2 (E = O, S and Se), and palladium(ii) complexes resulting from the orthometallation of 1, viz. [Pd(μ-X)(1- H)]2 (2-X, where X = Cl, Br and I), which in turn serve as a convenient entry point to a range of monopalladium complexes. Thus, the cleavage of 2-X with phosphines, 4-(dimethylamino)pyridine and in situ-generated 1,3-dimesitylimidazolin-2-ylidene (L) provided complexes [PdX(L)(1- H)] (3-5), which are typically obtained as single isomers by crystallisation but undergo spontaneous isomerisation in solution leading to equilibrium mixtures of cis and trans isomers. Upon treatment with sodium acetylacetonate (Na(acac)), 2-Cl was transformed into [Pd(acac)(1- H)] (6), which reacted with (diphenylphosphino)acetic acid under proton transfer to give [Pd(Ph2PCH2CO2-κ2O,P)(1- H)] (7), while the reaction with allylating agents produced the π-allyl complex [Pd(η3-C3H5)(1- H)] (9). Compound [PdCl(PMe3)(1- H)] was further used to prepare a series of diorganopalladium complexes [Pd(R)(PMe3)(1- H)] (8; R = Me, 4-C6H4Me, 4-C6H4CF3, CH[double bond, length as m-dash]CHC6H4Me-4 and C[triple bond, length as m-dash]CC6H4Me-4). All compounds were structurally characterised using spectroscopic methods and, in most cases, also by X-ray diffraction analysis. The structural data indicated the rigidity of the Pd(1- H)+ fragment and revealed variations in the Pd-donor distances dictated by an interplay between the trans influence and steric demands of the ligands surrounding Pd(ii). Moreover, some compounds were studied by DFT to rationalise their isomerisation equilibria and electrochemical properties, which were examined by cyclic voltammetry.
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Affiliation(s)
- Petr Vosáhlo
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
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7
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Pearce KG, Simenok V, Crossley IR. Phosphacycloalkyldiones: synthesis and coordinative behaviour of 6- and 7-member cyclic diketophosphanyls. Dalton Trans 2020; 49:5482-5492. [DOI: 10.1039/d0dt00864h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Condensation of glutaryl and adipoyl chlorides with bis(silyl)phosphanes RP(SiMe3)2 (R = Me, nBu, tBu, Ph, Mes) affords the conformationally fluxional phosphacycloalkyldiones (CH2)n(CO)2PR (n = 3, 4); their coordination behaviour is explored.
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8
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A. C. A. Bayrakdar T, Scattolin T, Ma X, Nolan SP. Dinuclear gold(i) complexes: from bonding to applications. Chem Soc Rev 2020; 49:7044-7100. [DOI: 10.1039/d0cs00438c] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The last two decades have seen a veritable explosion in the use of gold(i) complexes bearing N-heterocyclic carbene (NHC) and phosphine (PR3) ligands.
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Affiliation(s)
| | - Thomas Scattolin
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
| | - Xinyuan Ma
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
| | - Steven P. Nolan
- Department of Chemistry and Center for Sustainable Chemistry
- Ghent University
- Ghent
- Belgium
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9
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González-Sebastián L, Morales-Morales D. Cross-coupling reactions catalysed by palladium pincer complexes. A review of recent advances. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.04.021] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Taguchi HO, Tanigawa I, Takeuchi K, Ozawa F. On the Geometrical Stability of Square-Planar Platinum(0) Complexes That Bear a PNP-Pincer-Type Phosphaalkene Ligand (Eind 2 -BPEP). Chemistry 2018; 24:17055-17061. [PMID: 30350899 DOI: 10.1002/chem.201803097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/05/2018] [Indexed: 11/12/2022]
Abstract
The four-coordinate Pt0 complex [Pt(PPh3 )(Eind2 -BPEP)] (Eind=1,1,3,3,5,5,7,7-octaethyl-1,2,3,5,6,7-hexahydro-s-indacen-4-yl; BPEP=2,6-bis(1-phenyl-2-phosphaethenyl)pyridine), which bears a PNP-pincer-type phosphaalkene ligand (Eind2 -BPEP; PNP=N,N-bis(diphenylphosphine)-2,6-diaminopyridine), were found to adopt a square-planar configuration around the Pt center (τ4 =0.11). This coordination geometry is very uncommon for formal d10 complexes. In this study, a series of ligands with different electronic properties (i.e., DMAP, 2,6-lutidine, PMe3 , tBuNC, and CO) were introduced in place of PPh3 , and their effects on the coordination geometry were examined. X-ray diffraction analysis revealed that all complexes adopted a square-planar configuration (τ4 =0.20-0.27). In contrast, DFT calculations indicated that the geometrical stability towards distortion around Pt varied with the ligand. The complexes with pyridine-based ligands had rigid planar structures, whereas those with π-accepting ligands, such as CO, were relatively flexible towards distortion. The electronic effects of the ligands were reflected in the spectroscopic properties of the complexes, which showed a large color change in the near-infrared region.
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Affiliation(s)
- Hiro-Omi Taguchi
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research & IRCCS, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Ippei Tanigawa
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research & IRCCS, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Katsuhiko Takeuchi
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research & IRCCS, Kyoto University, Uji, Kyoto 611-0011, Japan.,Present Address: Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, 305-8565, Japan
| | - Fumiyuki Ozawa
- International Research Center for Elements Science (IRCELS), Institute for Chemical Research & IRCCS, Kyoto University, Uji, Kyoto 611-0011, Japan
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11
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Kashid VS, Radhakrishna L, Balakrishna MS. First examples of tri- and tetraphosphametacyclophanes: synthesis and isolation of an unusual hexapalladium complex containing pincer units with Pd–P covalent bonds. Dalton Trans 2017; 46:6510-6513. [DOI: 10.1039/c7dt00737j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First examples of tri- and tetraphosphametacyclophanes and a rare hexapalladium(ii) dipincer complex containing Pd–P covalent bonds are described.
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Affiliation(s)
- Vitthalrao S. Kashid
- Phosphorus Laboratory
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | - Latchupatula Radhakrishna
- Phosphorus Laboratory
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | - Maravanji S. Balakrishna
- Phosphorus Laboratory
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
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12
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Kashid VS, Naik S, Balakrishna MS. Silver(I) Complexes of Bisphosphines PhN{P(OC6H4C3H5-o)2}2 (1) and 2,6-{Ph2PC(O)}2C5H3N (2). PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2016. [DOI: 10.1007/s40010-016-0309-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Qi L, Li Q, Hong X, Liu L, Zhong XX, Chen Q, Li FB, Liu Q, Qin HM, Wong WY. Synthesis, characterization and luminescent properties of three-coordinate copper(I) halide complexes containing 2-(diphenylphosphino)biphenyl. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1239255] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Lei Qi
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, PR China
| | - Qian Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, PR China
| | - Xiao Hong
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, PR China
| | - Li Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, PR China
| | - Xin-Xin Zhong
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, PR China
| | - Qiao Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, PR China
| | - Fa-Bao Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, School of Chemistry and Chemical Engineering, Hubei University, Wuhan, PR China
| | - Qian Liu
- Institute of Molecular Functional Materials and Department of Chemistry and Partner State Key Laboratory of Environmental and Biological Analysis, Hong Kong Baptist University, Hong Kong, PR China
| | - Hai-Mei Qin
- Fujian Provincial Key Lab of Theoretical and Computational Chemistry, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China
| | - Wai-Yeung Wong
- Institute of Molecular Functional Materials and Department of Chemistry and Institute of Advanced Materials, Hong Kong Baptist University, Hong Kong, PR China
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14
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Saunders AJ, Crossley IR, Roe SM. Aroylphosphanes: Base‐Free Synthesis and Their Coordination Chemistry with Platinum‐Group Metals. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600592] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | - S. Mark Roe
- Department of ChemistryUniversity of SussexBrightonUK
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