1
|
Nguyen THV, Chelli S, Mallet-Ladeira S, Breugst M, Lakhdar S. Reactivity of the phosphaethynolate anion with stabilized carbocations: mechanistic studies and synthetic applications. Chem Sci 2024:d4sc03518f. [PMID: 39165734 PMCID: PMC11331332 DOI: 10.1039/d4sc03518f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Accepted: 07/27/2024] [Indexed: 08/22/2024] Open
Abstract
The reactivity of sodium phosphaethynolate Na(OCP) towards various Mayr's reference electrophiles was investigated using conventional UV-visible and laser-flash photolysis techniques. The kinetic data, along with density functional theory (DFT) calculations, enabled the first experimental quantification of the phosphorus nucleophilicity of [OCP]-. Product studies of these reactions demonstrate the formation of secondary as well as tertiary phosphines. The mechanism of this unprecedented phosphorus-atom transfer reaction is thoroughly discussed, with key intermediates successfully isolated and characterized. Importantly, some bulky secondary phosphine oxides synthesized using this approach, have demonstrated high efficiency as ligands in the Suzuki coupling reaction.
Collapse
Affiliation(s)
- Thi Hong Van Nguyen
- CNRS, Université Paul Sabatier, Laboratoire Hetérochimie Fondamentale et Appliquée (LHFA, UMR5069) 118 Route de Narbonne 31062 Cedex 09 Toulouse France
| | - Saloua Chelli
- CNRS, Université Paul Sabatier, Laboratoire Hetérochimie Fondamentale et Appliquée (LHFA, UMR5069) 118 Route de Narbonne 31062 Cedex 09 Toulouse France
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse (FR 2599) 118 Route de Narbonne 31062 Cedex 09 Toulouse France
| | - Martin Breugst
- Institut für Chemie, Technische Universität Chemnitz 09111 Chemnitz Germany
| | - Sami Lakhdar
- CNRS, Université Paul Sabatier, Laboratoire Hetérochimie Fondamentale et Appliquée (LHFA, UMR5069) 118 Route de Narbonne 31062 Cedex 09 Toulouse France
| |
Collapse
|
2
|
Horváth Á, Benkő Z. Phthalazine as a Diene in Diels-Alder Reactions With P- and As-Containing Anionic Dienophiles: Comparison of Possible Reaction Channels. Chempluschem 2024:e202400140. [PMID: 38819996 DOI: 10.1002/cplu.202400140] [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: 02/18/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/02/2024]
Abstract
Phthalazine can behave as a diene in Diels-Alder (DA) cycloadditions, typically at the pyridazine ring, however, its application is somewhat limited because these reactions usually require harsh conditions or sophisticated catalysts. As an unconventional example, phthalazine was reported to undergo cycloaddition with the [PCO]- anion without any catalyst. In this computational study, we scrutinise the mechanism of the DA reactions between phthalazine and the so far known [ECX]- (E: P, As; X: O, S, Se) anions as dienophiles. In principle, the attack of an [ECX]- anion may occur at two different sites of phthalazine, either at the benzene or the pyridazine ring, and both of these possible reaction channels were juxtaposed on the basis of energetic aspects. In all of the investigated cases, the analysis of the energy profiles reveals a clear regioselectivity that favours the attack at the pyridazine ring. As a result, so far unprecedented 2-pnictanaphth-3-olate analogues seem achievable as final products. Comparing the characteristics of these pathways allowed us to clarify the source of this regioselectivity: The pyridazine ring of phthalazine exhibits lower aromaticity than the benzene subring; therefore, in the DA step, the former ring shows a higher affinity toward a dienophile than the latter, leading to lower activation barriers. To further map the electronic and structural features of the cycloaddition steps, the local interactions evolving in the transition states were analysed and compared using global and local descriptors. In most aspects, the characteristics of both pathways were found to be rather similar, in contrast to the markedly differing activation barriers on the two routes.
Collapse
Affiliation(s)
- Ádám Horváth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Műegyetem rkp 3., H-1111, Budapest, Hungary
| | - Zoltán Benkő
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Műegyetem rkp 3., H-1111, Budapest, Hungary
- HUN-REN-BME Computation Driven Chemistry Research Group, Műegyetem rkp 3., H-1111, Budapest, Hungary
| |
Collapse
|
3
|
Hauer S, Horsley Downie TM, Balázs G, Schwedtmann K, Weigand JJ, Wolf R. Cobalt-Mediated [3+1] Fragmentation of White Phosphorus: Access to Acylcyanophosphanides. Angew Chem Int Ed Engl 2024; 63:e202317170. [PMID: 38059391 DOI: 10.1002/anie.202317170] [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: 11/12/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/08/2023]
Abstract
Despite the accessibility of numerous transition metal polyphosphido complexes through transition-metal-mediated activation of white phosphorus, the targeted functionalization of Pn ligands to obtain functional monophosphorus species remains challenging. In this study, we introduce a new [3+1] fragmentation procedure for cyclo-P4 ligands, leading to the discovery of acylcyanophosphanides and -phosphines. Treatment of the complex [K(18c-6)][(Ar*BIAN)Co(η4 -P4 )] ([K(18c-6)]3, 18c-6=[18]crown-6, Ar*=2,6-dibenzhydryl-4-isopropylphenyl, BIAN=1,2-bis(arylimino)acenaphthene diimine) with acyl chlorides results in the formation of acylated tetraphosphido complexes [(Ar*BIAN)Co(η4 -P4 C(O)R)] (R=tBu, Cy, 1-Ad, Ph; 4 a-d). Subsequent reactions of 4 a-d with cyanide salts yield acylated cyanophosphanides [RC(O)PCN]- (9 a-d- ) and the cyclo-P3 cobaltate anion [(Ar*BIAN)Co(η3 -P3 )(CN)]- (8- ). Further reactions of 4 a-d with trimethylsilyl cyanide (Me3 SiCN) and isocyanides provide insight into a plausible mechanism of this [3+1] fragmentation reaction, as these reagents partially displace the P4 C(O)R ligand from the cobalt center. Several potential intermediates of the [3+1] fragmentation were characterized. Additionally, the introduction of a second acyl substituent was achieved by treating [K(18c-6)]9b with CyC(O)Cl, resulting in the first bis(acyl)monocyanophosphine (CyC(O))2 PCN (10).
Collapse
Affiliation(s)
- Sebastian Hauer
- University of Regensburg, Institute of Inorganic Chemistry, 93040, Regensburg, Germany
| | | | - Gábor Balázs
- University of Regensburg, Institute of Inorganic Chemistry, 93040, Regensburg, Germany
| | - Kai Schwedtmann
- TU Dresden, Faculty of Chemistry and Food Chemistry, 01062, Dresden, Germany
| | - Jan J Weigand
- TU Dresden, Faculty of Chemistry and Food Chemistry, 01062, Dresden, Germany
| | - Robert Wolf
- University of Regensburg, Institute of Inorganic Chemistry, 93040, Regensburg, Germany
| |
Collapse
|
4
|
Maslowsky E. Vibrational and computational data for homoleptic main-group element carbonyl complexes. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
|
5
|
Ziółkowska A, Doroszuk J, Ponikiewski Ł. Overview of the Synthesis and Catalytic Reactivity of Transition Metal Complexes Based on C═P Bond Systems. Organometallics 2023. [DOI: 10.1021/acs.organomet.2c00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
|
6
|
Hu C, Goicoechea JM. Synthesis, Structure and Reactivity of a Cyapho(dicyano)methanide Salt. Angew Chem Int Ed Engl 2022; 61:e202208921. [PMID: 35876032 PMCID: PMC9805078 DOI: 10.1002/anie.202208921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Indexed: 01/09/2023]
Abstract
We describe the synthesis of a cyapho(dicyano)methanide salt, [K(18-crown-6)][C(CN)2 (CP)], from reaction of [Na(18-crown-6)][PH2 ] (18-crown-6=1,4,7,10,13,16-hexaoxacyclooctadecane) with 1,1-diethoxy-2,2-dicyanoethylene (EtO)2 C=C(CN)2 . The reaction proceeds through a Michael addition-elimination pathway to afford [Na(18-crown-6)][HP{C(OEt)=C(CN)2 }]. Addition of a strong, non-nucleophilic base (KHMDS) to this intermediate results in the formation of [K(18-crown-6)][C(CN)2 (CP)]. Subsequent reactivity studies reveal that the cyapho(dicyano)methanide ion is susceptible to protonation with strong acids to afford the parent acid HC(CN)2 (CP). The reactivity of the cyaphide moiety in [C(CN)2 (CP)]- was explored through coordination to metal centers and in cycloaddition reactions with azides.
Collapse
Affiliation(s)
- Chenyang Hu
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory12 Mansfield RoadOxfordOX1 3TAUK
| | - Jose M. Goicoechea
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory12 Mansfield RoadOxfordOX1 3TAUK
| |
Collapse
|
7
|
Timofeeva V, Baeza JML, Nougué R, Syroeshkin M, Segundo Rojas Guerrero R, Saffon-Merceron N, Altınbaş Özpınar G, Rathjen S, Müller T, Baceiredo A, Kato T. Reductive Elimination at Pb(II) Center of an (Amino)plumbylene-Substituted Phosphaketene: New Pathway for Phosphinidene Synthesis. Chemistry 2022; 28:e202201615. [PMID: 35638144 PMCID: PMC9401577 DOI: 10.1002/chem.202201615] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Indexed: 12/27/2022]
Abstract
A stable (amino)plumbylene‐substituted phosphaketene 3 was synthesized by the successive reactions of PbCl2 with two anionic reagents (lithium amidophosphine and NaPCO). Of particular interest, the thermal evolution of 3, at 80 °C, leads to the transient formation of corresponding amino‐ and phosphanylidene‐phosphaketenes (6 and 7), via a reductive elimination at the PbII center forming new N−P and P−P bonds. Further evolution of 6 gives a new cyclic (amino)phosphanylidene phosphorane 4, which shows a unique reactivity as a phosphinidene. This result provides a new synthetic route to phosphinidenes, extending and facilitating further their access.
Collapse
Affiliation(s)
- Vladislava Timofeeva
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France.,N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991, Moscow, Russia
| | - José Miguel Léon Baeza
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France.,Departamento de Química Inorganica, Facultad de Química, Pontificia Universidad Catolica de Chile, Casilla 306, Santiago, 22, Chile
| | - Raphael Nougué
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France
| | - Mikhail Syroeshkin
- N. D. Zelinsky Institute of Organic Chemistry, Leninsky prosp. 47, 119991, Moscow, Russia
| | - Rene Segundo Rojas Guerrero
- Departamento de Química Inorganica, Facultad de Química, Pontificia Universidad Catolica de Chile, Casilla 306, Santiago, 22, Chile
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse (FR 2599), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France
| | - Gül Altınbaş Özpınar
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, 26111, Oldenburg, Germany
| | - Saskia Rathjen
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, 26111, Oldenburg, Germany
| | - Thomas Müller
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Strasse 9-11, 26111, Oldenburg, Germany
| | - Antoine Baceiredo
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France
| | - Tsuyoshi Kato
- Laboratoire Hétérochimie Fondamentale et Appliquée (UMR 5069), Université de Toulouse, CNRS, 118 route de Narbonne, 31062, Toulouse, France
| |
Collapse
|
8
|
Hu C, Goicoechea JM. Synthesis, Structure and Reactivity of a Cyapho(dicyano)methanide Salt. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chenyang Hu
- University of Oxford Department of Chemistry Department of Chemistry UNITED KINGDOM
| | - Jose Manuel Goicoechea
- University of Oxford Department of Chemistry CRL, Mansfield Road OX1 3TA Oxford UNITED KINGDOM
| |
Collapse
|
9
|
Horváth Á, Benkő Z. Understanding the Mechanism of Diels-Alder Reactions with Anionic Dienophiles: A Systematic Comparison of [ECX] - (E = P, As; X = O, S, Se) Anions. Inorg Chem 2022; 61:7922-7934. [PMID: 35533395 PMCID: PMC9131451 DOI: 10.1021/acs.inorgchem.2c00549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
While Diels–Alder
(DA) reactions involving neutral or cationic
dienophiles are well-known, the characteristics of the analogous reactions
with anionic dienophiles are practically unexplored. Herein we present
the first comparative computational investigations on the characteristics
of DA cycloadditions with anionic dienophiles on the basis of the
reactions of [ECX]− anions (E = P, As; X = O, S,
Se) with 2H-pyran-2-one. All of these reactions were
found to be both kinetically and thermodynamically feasible, enabling
synthetic access toward 2-phosphaphenolate and arsaphenolate derivatives
in the future. This study also reveals that the [ECO]− anions show clear regioselectivity, while for [ECS]− and [ECSe]− anions, the two possible reaction
channels have very similar energetics. Additionally, the activation
barriers for the [ECO]− anions are lower than those
of the heavier analogues. The observed differences can be traced back
to the starkly differing nucleophilic character of the pnictogen center
in the anions, leading to a barrier-lowering effect in the case of
the [ECO]− anions. Furthermore, analysis of the
geometries and electron distributions of the corresponding transition
states revealed structure–property relationships, and thus
a direct comparison of the cycloaddition reactivity of these anions
was achieved. Along one of the two pathways, a good correlation was
found between the activation barriers and suitable nucleophilicity
descriptors (nucleophilic Parr function and global nucleophilicity).
Additionally, the tendency of the reaction energies can be explained
by the changing aromaticity of the products. In contrast to the phosphaethynolate [PCO]− anion, the cycloaddition reactivity of the heavier congeners ([ECX]−, where E = P, As and X = O, S, Se) is unexplored.
In this computational study, the Diels−Alder reaction between
the known [ECX]− anions and 2-pyrone was employed
to compare the reactivity patterns. The first activation barrier of
these reactions correlates with the nucleophilicity of the anions,
indicating a barrier-lowering effect. The feasibility of the studied
reactions, leading to P and As heterocycles, was also explored.
Collapse
Affiliation(s)
- Ádám Horváth
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Müegyetem rkp. 3, Budapest H-1111, Hungary
| | - Zoltán Benkő
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Müegyetem rkp. 3, Budapest H-1111, Hungary
| |
Collapse
|
10
|
Basappa S, Bhawar R, Nagaraju DH, Bose SK. Recent advances in the chemistry of the phosphaethynolate and arsaethynolate anions. Dalton Trans 2022; 51:3778-3806. [PMID: 35108724 DOI: 10.1039/d1dt03994f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Over the past decade, the reactivity of 2-phosphaethynolate (OCP-), a heavier analogue of the cyanate anion, has been the subject of momentous interest in the field of modern organometallic chemistry. It is used as a precursor to novel phosphorus-containing heterocycles and as a ligand in decarbonylative processes, serving as a synthetic equivalent of a phosphinidene derivative. This perspective aims to describe advances in the reactivities of phosphaethynolate and arsaethynolate anions (OCE-; E = P, As) with main-group element, transition metal, and f-block metal scaffolds. Further, the unique structures and bonding properties are discussed based on spectroscopic and theoretical studies.
Collapse
Affiliation(s)
- Suma Basappa
- Centre for Nano and Material Sciences (CNMS), Jain University, Jain Global Campus, Bangalore-562112, India.
| | - Ramesh Bhawar
- Centre for Nano and Material Sciences (CNMS), Jain University, Jain Global Campus, Bangalore-562112, India.
| | - D H Nagaraju
- Department of Chemistry, School of Applied Sciences, Reva University, Bangalore 560064, India.
| | - Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS), Jain University, Jain Global Campus, Bangalore-562112, India.
| |
Collapse
|
11
|
Grützmacher H, Le Corre G. Simple conversion of trisodium phosphide, Na3P, into silyl- and cyanophosphides and structure of a terminal silver phosphide. Dalton Trans 2022; 51:3497-3501. [DOI: 10.1039/d1dt04223h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of trisodium phosphide (Na3P) with chlorosilanes allows for simple derivatization into silyl- and cyano-substituted phosphanide species which were compared to each other. The recently discovered cyano(triphenylsilyl)phosphanide shows unique coordination...
Collapse
|
12
|
Shen Q, Xu J, Chen X. π- delocalization in phosphaphthalimide and its ambident reactivity (O/P) toward main-group electrophiles. Dalton Trans 2022; 51:10240-10248. [DOI: 10.1039/d2dt01163h] [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 report on phosphaphthalimide (1), the phosphorus analogue of the phthalimide anion, dates back to forty years ago. However, the presence of π-delocalization between two-coordinated phosphorus centre and neighbouring carbonyl...
Collapse
|
13
|
Ergöçmen D, Goicoechea JM. Synthesis, Structure and Reactivity of a Cyapho-Cyanamide Salt. Angew Chem Int Ed Engl 2021; 60:25286-25289. [PMID: 34554622 DOI: 10.1002/anie.202111619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/23/2021] [Indexed: 11/05/2022]
Abstract
We describe a facile synthesis of the cyapho-cyanamide salt [Na(18-crown-6)][N(CN)(CP)] from reaction of [Na(18-crown-6)][PH2 ] (18-crown-6=1,4,7,10,13,16-hexaoxacyclooctadecane) with dimethyl N-cyanocarbonimidate, (MeO)2 C=N(CN). The reaction proceeds with elimination of two equivalents of methanol. Careful tuning of the reaction conditions allowed for the isolation and characterization of the N-cyano(carboximidate)phosphide intermediate [HP{C(OMe)N(CN)}]- . Due to the adverse effects of methanol in these reaction mixtures, a bulk scale synthesis of [Na(18-crown-6)][N(CN)(CP)] could be achieved by addition of a base (LiHMDS) to neutralize the resulting alcohol. Further reactivity studies of this anion reveal that functionalization at the phosphorus atom is viable to yield a new family of cyanide-functionalised phosphorus heterocycles.
Collapse
Affiliation(s)
- Doruk Ergöçmen
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Jose M Goicoechea
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| |
Collapse
|
14
|
Ergöçmen D, Goicoechea JM. Synthesis, Structure and Reactivity of a Cyapho‐Cyanamide Salt. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202111619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Doruk Ergöçmen
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA U.K
| | - Jose M. Goicoechea
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA U.K
| |
Collapse
|
15
|
Barlow KR, Goodlett SM, Arradondo SN, Tschumper GS. Fundamental vibrational frequencies of isolated 2-phosphaethynolate and 2-phosphaethynthiolate anions: OCP – and SCP –. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1967495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Kayleigh R. Barlow
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, USA
| | - Stephen M. Goodlett
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, USA
| | | | - Gregory S. Tschumper
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, USA
| |
Collapse
|
16
|
Qian W, Lu B, Tan G, Rauhut G, Grützmacher H, Zeng X. Vibrational spectrum and photochemistry of phosphaketene HPCO. Phys Chem Chem Phys 2021; 23:19237-19243. [PMID: 34524290 DOI: 10.1039/d1cp02860j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The vibrational spectra of the simplest phosphaketene HPCO and its isotopologue DPCO in solid Ar-matrices at 12.0 K have been analyzed with the aid of the computations at the CCSD(T)-F12a/cc-pVTZ-F12 level using configuration-selective vibrational configuration interaction (VCI). In addition to the four IR fundamentals, four overtone and ten combination bands have been unambiguously identified. Furthermore, the photochemistry of HPCO in the matrix has been investigated for the first time. Upon UV-light irradiation (365 or 266 nm), CO-elimination occurs by forming the parent phosphinidene HP that can be trapped by ˙NO to yield the elusive phosphinimine-N-oxyl radical HPNO˙. In contrast, an excimer laser (193 nm) irradiation of HPCO causes additional decomposition to H˙ and ˙PCO with concomitant formation of the long-sought phosphaethyne HOCP.
Collapse
Affiliation(s)
- Weiyu Qian
- Department of Chemistry, Fudan University, 200433 Shanghai, China.
| | - Bo Lu
- Department of Chemistry, Fudan University, 200433 Shanghai, China.
| | - Gengwen Tan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China.
| | - Guntram Rauhut
- Institute for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart 70569, Germany
| | | | - Xiaoqing Zeng
- Department of Chemistry, Fudan University, 200433 Shanghai, China.
| |
Collapse
|
17
|
Obi AD, Machost HR, Dickie DA, Gilliard RJ. A Thermally Stable Magnesium Phosphaethynolate Grignard Complex. Inorg Chem 2021; 60:12481-12488. [PMID: 34346670 DOI: 10.1021/acs.inorgchem.1c01700] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The 2-phosphaethynolate (OCP) anion has found versatile applications across the periodic table but remains underexplored in group 2 chemistry due to challenges in isolating thermally stable complexes. By rationally modifying their coordination environments using 1,3-dialkyl-substituted N-heterocyclic carbenes (NHCs), we have now isolated and characterized thermally stable, structurally diverse, and hydrocarbon soluble magnesium phosphaethynolate complexes (2, 4Me, and 8-10), including the novel phosphaethynolate Grignard reagent (2iPr). The methylmagnesium phosphaethynolate and magnesium diphosphaethynolate complexes readily activate dioxane with subsequent H-atom abstraction to form [(NHC)MgX(μ-OEt)]2 [X = Me (3) or OCP (8 and 9)] complexes. Their reactivities increased with the Lewis acidity of the Mg2+ cation and may be attenuated by Lewis base saturation or a slight increase in carbene sterics. Solvent effects were also investigated and led to the surreptitious isolation of an ether-free sodium phosphaethynolate (NHC)3Na(OCP) (6), which is soluble in aromatic hydrocarbons and can be independently prepared by the reaction of NHC and [Na(dioxane)2][OCP] in toluene. Under forcing conditions (105 °C, 3 days), the magnesium diphosphaethynolate complex (NHC)3Mg(OCP)2 (10) decomposes to a mixture of organophosphorus complexes, among which a thermal decarbonylation product [(NHC)2PI][OCP] (11) was isolated.
Collapse
Affiliation(s)
- Akachukwu D Obi
- Department of Chemistry, University of Virginia, 409 McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22904, United States
| | - Haleigh R Machost
- Department of Chemistry, University of Virginia, 409 McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22904, United States
| | - Diane A Dickie
- Department of Chemistry, University of Virginia, 409 McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22904, United States
| | - Robert J Gilliard
- Department of Chemistry, University of Virginia, 409 McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22904, United States
| |
Collapse
|
18
|
Petrone DA, Szkop KM, Miao L, St Onge P, Qu ZW, Grimme S, Stephan DW. A Primary Acyl Phosphine Stabilized by a Phosphonium Ylide. Angew Chem Int Ed Engl 2021; 60:18547-18551. [PMID: 34125463 DOI: 10.1002/anie.202106846] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Indexed: 11/07/2022]
Abstract
Primary acyl-phosphines are scarce in the literature. Here we show that the reaction of Ph3 GePCO with the ylide Ph3 PCH2 proceeds to give the species Ph3 PCHC(O)PH(GePh3 ) 1. Deprotonation of 1 with Na[N(SiMe3 )2 ] generates the salt [Na(THF)2 ][Ph3 PCHC(O)P(GePh3 )] 2 which provides subsequent access to the bis-germanylated acylphosphine, Ph3 PCHC(O)P(GePh3 )2 3. Alternatively, treatment of 1 with HCl in dioxane affords the primary acylphosphine Ph3 PCHC(O)PH2 4. Compound 4 is a rare example of an air stable primary acyl-phosphines and the first devoid of a stabilizing heteroatom adjacent to the carbonyl fragment.
Collapse
Affiliation(s)
- David A Petrone
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S3H6, Canada
| | - Kevin M Szkop
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S3H6, Canada
| | - Linkun Miao
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S3H6, Canada
| | - Piers St Onge
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S3H6, Canada
| | - Zheng-Wang Qu
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstrasse 4, 53115, Bonn, Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstrasse 4, 53115, Bonn, Germany
| | - Douglas W Stephan
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario, M5S3H6, Canada
| |
Collapse
|
19
|
Petrone DA, Szkop KM, Miao L, St. Onge P, Qu Z, Grimme S, Stephan DW. A Primary Acyl Phosphine Stabilized by a Phosphonium Ylide. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106846] [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)
- David A. Petrone
- Department of Chemistry University of Toronto 80 St. George St. Toronto Ontario M5S3H6 Canada
| | - Kevin M. Szkop
- Department of Chemistry University of Toronto 80 St. George St. Toronto Ontario M5S3H6 Canada
| | - Linkun Miao
- Department of Chemistry University of Toronto 80 St. George St. Toronto Ontario M5S3H6 Canada
| | - Piers St. Onge
- Department of Chemistry University of Toronto 80 St. George St. Toronto Ontario M5S3H6 Canada
| | - Zheng‐Wang Qu
- Mulliken Center for Theoretical Chemistry Institut für Physikalische und Theoretische Chemie Rheinische Friedrich-Wilhelms-Universität Bonn Beringstrasse 4 53115 Bonn Germany
| | - Stefan Grimme
- Mulliken Center for Theoretical Chemistry Institut für Physikalische und Theoretische Chemie Rheinische Friedrich-Wilhelms-Universität Bonn Beringstrasse 4 53115 Bonn Germany
| | - Douglas W. Stephan
- Department of Chemistry University of Toronto 80 St. George St. Toronto Ontario M5S3H6 Canada
| |
Collapse
|
20
|
Yu J, Liu K, Wu Q, Li B, Kong X, Hu K, Mei L, Yuan L, Chai Z, Shi W. Facile Access to Uranium and Thorium Phosphaethynolate Complexes Supported by Tren: Experimental and Theoretical Study. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100149] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jipan Yu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| | - Kang Liu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| | - Qunyan Wu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| | - Bin Li
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| | - Xianghe Kong
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| | - Kongqiu Hu
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| | - Lei Mei
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| | - Liyong Yuan
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| | - Zhifang Chai
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
- Engineering Laboratory of Advanced Energy Materials Institute of Industrial Technology Chinese Academy of Sciences, Ningbo Zhejiang 315201 China
| | - Weiqun Shi
- Laboratory of Nuclear Energy Chemistry, Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China
| |
Collapse
|
21
|
Hagspiel S, Fantuzzi F, Dewhurst RD, Gärtner A, Lindl F, Lamprecht A, Braunschweig H. Adducts of the Parent Boraphosphaketene H 2 BPCO and their Decarbonylative Insertion Chemistry. Angew Chem Int Ed Engl 2021; 60:13666-13670. [PMID: 33843132 PMCID: PMC8252595 DOI: 10.1002/anie.202103521] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/08/2021] [Indexed: 01/06/2023]
Abstract
The first examples of Lewis base adducts of the parent boraphosphaketene (H2 B-PCO) and their cyclodimers are prepared. One of these adducts is shown to undergo mild decarbonylation and phosphinidene insertion into a B-C bond of a borole, forming very rare examples of 1,2-phosphaborinines, B/P isosteres of benzene. The strong donor properties of these 1,2-phosphaborinines are confirmed by the synthesis of their π complexes with the Group 6 metals.
Collapse
Affiliation(s)
- Stephan Hagspiel
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Felipe Fantuzzi
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Physical and Theoretical ChemistryJulius-Maximilians-Universität WürzburgEmil-Fischer-Strasse 4297074WürzburgGermany
| | - Rian D. Dewhurst
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Annalena Gärtner
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Felix Lindl
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Anna Lamprecht
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| | - Holger Braunschweig
- Institute for Inorganic ChemistryJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
- Institute for Sustainable Chemistry & Catalysis with BoronJulius-Maximilians-Universität WürzburgAm Hubland97074WürzburgGermany
| |
Collapse
|
22
|
Hagspiel S, Fantuzzi F, Dewhurst RD, Gärtner A, Lindl F, Lamprecht A, Braunschweig H. Addukte des Stammboraphosphaketens H
2
BPCO und deren Insertionsreaktionen mittels Decarbonylierung. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Stephan Hagspiel
- Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Felipe Fantuzzi
- Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institut für Physikalische und Theoretische Chemie Julius-Maximilians-Universität Würzburg Emil-Fischer-Straße 42 97074 Würzburg Deutschland
| | - Rian D. Dewhurst
- Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Annalena Gärtner
- Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Felix Lindl
- Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Anna Lamprecht
- Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| | - Holger Braunschweig
- Institut für Anorganische Chemie Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
- Institute for Sustainable Chemistry & Catalysis with Boron Julius-Maximilians-Universität Würzburg Am Hubland 97074 Würzburg Deutschland
| |
Collapse
|
23
|
Faria EN, Jupp AR, Goicoechea JM. Novel primary phosphinecarboxamides derived from diamines. Dalton Trans 2021; 50:6991-6996. [PMID: 33949541 DOI: 10.1039/d1dt01198g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We describe the synthesis of N-functionalised phosphinecarboxamides obtained by reaction of the 2-phosphaethynolate anion (PCO-) with diamines, specifically hydrazine, methylenediamine and ethylenediamine, in the presence of acid. The resulting neutral compounds can be deprotonated to generate phosphide anions that, when further reacted with electrophiles, form secondary phosphines.
Collapse
Affiliation(s)
- Erica N Faria
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Andrew R Jupp
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| | - Jose M Goicoechea
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
| |
Collapse
|
24
|
Suter R, Gilliard RJ, Iskandarov J, Benkő Z, Wörle M, Grützmacher H. Anionic 1-Aza-3,4-diphospholides as redox active ligands. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
25
|
Watt FA, Burkhardt L, Schoch R, Mitzinger S, Bauer M, Weigend F, Goicoechea JM, Tambornino F, Hohloch S. η
3
‐Coordination and Functionalization of the 2‐Phosphaethynthiolate Anion at Lanthanum(III)**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100559] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Fabian A. Watt
- Department of Chemistry and Center for Sustainable Systems Design (CSSD) Paderborn University Warburger Strasse 100 33098 Paderborn Germany
| | - Lukas Burkhardt
- Department of Chemistry and Center for Sustainable Systems Design (CSSD) Paderborn University Warburger Strasse 100 33098 Paderborn Germany
| | - Roland Schoch
- Department of Chemistry and Center for Sustainable Systems Design (CSSD) Paderborn University Warburger Strasse 100 33098 Paderborn Germany
| | - Stefan Mitzinger
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
| | - Matthias Bauer
- Department of Chemistry and Center for Sustainable Systems Design (CSSD) Paderborn University Warburger Strasse 100 33098 Paderborn Germany
| | - Florian Weigend
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps-Universität Marburg Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Jose M. Goicoechea
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
| | - Frank Tambornino
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften (WZMW) Philipps-Universität Marburg Hans-Meerwein-Strasse 4 35032 Marburg Germany
| | - Stephan Hohloch
- Institute for General, Inorganic and Theoretical Chemistry University of Innsbruck Innrain 80–82 6020 Innsbruck Austria
| |
Collapse
|
26
|
Watt FA, Burkhardt L, Schoch R, Mitzinger S, Bauer M, Weigend F, Goicoechea JM, Tambornino F, Hohloch S. η 3 -Coordination and Functionalization of the 2-Phosphaethynthiolate Anion at Lanthanum(III)*. Angew Chem Int Ed Engl 2021; 60:9534-9539. [PMID: 33565689 PMCID: PMC8252525 DOI: 10.1002/anie.202100559] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Indexed: 01/08/2023]
Abstract
We present the η3 -coordination of the 2-phosphaethynthiolate anion in the complex (PN)2 La(SCP) (2) [PN=N-(2-(diisopropylphosphanyl)-4-methylphenyl)-2,4,6-trimethylanilide)]. Structural comparison with dinuclear thiocyanate-bridged (PN)2 La(μ-1,3-SCN)2 La(PN)2 (3) and azide-bridged (PN)2 La(μ-1,3-N3 )2 La(PN)2 (4) complexes indicates that the [SCP]- coordination mode is mainly governed by electronic, rather than steric factors. Quantum mechanical investigations reveal large contributions of the antibonding π*-orbital of the [SCP]- ligand to the LUMO of complex 2, rendering it the ideal precursor for the first functionalization of the [SCP]- anion. Complex 2 was therefore reacted with CAACs which induced a selective rearrangement of the [SCP]- ligand to form the first CAAC stabilized group 15-group 16 fulminate-type complexes (PN)2 La{SPC(R CAAC)} (5 a,b, R=Ad, Me). A detailed reaction mechanism for the SCP-to-SPC isomerization is proposed based on DFT calculations.
Collapse
Affiliation(s)
- Fabian A. Watt
- Department of Chemistry and Center for Sustainable Systems Design (CSSD)Paderborn UniversityWarburger Strasse 10033098PaderbornGermany
| | - Lukas Burkhardt
- Department of Chemistry and Center for Sustainable Systems Design (CSSD)Paderborn UniversityWarburger Strasse 10033098PaderbornGermany
| | - Roland Schoch
- Department of Chemistry and Center for Sustainable Systems Design (CSSD)Paderborn UniversityWarburger Strasse 10033098PaderbornGermany
| | - Stefan Mitzinger
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory12 Mansfield RoadOxfordOX1 3TAUK
| | - Matthias Bauer
- Department of Chemistry and Center for Sustainable Systems Design (CSSD)Paderborn UniversityWarburger Strasse 10033098PaderbornGermany
| | - Florian Weigend
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften (WZMW)Philipps-Universität MarburgHans-Meerwein-Strasse 435032MarburgGermany
| | - Jose M. Goicoechea
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory12 Mansfield RoadOxfordOX1 3TAUK
| | - Frank Tambornino
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften (WZMW)Philipps-Universität MarburgHans-Meerwein-Strasse 435032MarburgGermany
| | - Stephan Hohloch
- Institute for General, Inorganic and Theoretical ChemistryUniversity of InnsbruckInnrain 80–826020InnsbruckAustria
| |
Collapse
|
27
|
Walley JE, Warring LS, Kertész E, Wang G, Dickie DA, Benkő Z, Gilliard RJ. Indirect Access to Carbene Adducts of Bismuth- and Antimony-Substituted Phosphaketene and Their Unusual Thermal Transformation to Dipnictines and [(NHC) 2OCP][OCP]. Inorg Chem 2021; 60:4733-4743. [PMID: 33689349 PMCID: PMC8277130 DOI: 10.1021/acs.inorgchem.0c03683] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
![]()
The
synthesis and thermal redox chemistry of the first antimony
(Sb)– and bismuth (Bi)–phosphaketene adducts are described.
When diphenylpnictogen chloride [Ph2PnCl (Pn = Sb or Bi)]
is reacted with sodium 2-phosphaethynolate [Na[OCP]·(dioxane)x], tetraphenyldipnictogen (Ph2Pn–PnPh2) compounds are produced, and an insoluble
precipitate forms from solution. In contrast, when the N-heterocyclic carbene adduct (NHC)–PnPh2Cl is combined
with [Na[OCP]·(dioxane)x], Sb–
and Bi–phosphaketene complexes are isolated. Thus, NHC serves
as an essential mediator for the reaction. Immediately after the formation
of an intermediary pnictogen–phosphaketene NHC adduct [NHC–PnPh2(PCO)], the NHC ligand transfers from the Pn center to the
phosphaketene carbon atom, forming NHC–C(O)P-PnPh2 [Pn = Sb (3) or Bi (4)]. In the solid
state, 3 and 4 are dimeric with short intermolecular
Pn–Pn interactions. When compounds 3 and 4 are heated in THF at 90 and 70 °C, respectively, the
pnictogen center PnIII is thermally reduced to PnII to form tetraphenyldipnictines (Ph2Pn–PnPh2) and an unusual bis-carbene-supported OCP
salt, [(NHC)2OCP][OCP] (5). The formation
of compound 5 and Ph2Pn–PnPh2 from 3 or 4 is unique in comparison to
the known thermal reactivity for group 14 carbene–phosphaketene
complexes, further highlighting the diverse reactivity of [OCP]− with main-group elements. All new compounds have been
fully characterized by single-crystal X-ray diffraction, multinuclear
NMR spectroscopy (1H, 13C, and 31P), infrared spectroscopy, and elemental analysis (1, 2, and 5). The electronic structure of 5 and the mechanism of formation were investigated using density
functional theory (DFT). An N-heterocyclic carbene (NHC) was used
to support the otherwise unstable Ph2Sb—P=C=O
and Ph2Bi—P=C=O moieties. Exploration
of the thermal chemistry of these NHC−phosphaketene adducts
reveals the formation of the salt [NHC2OCP][OCP]. This
present work demonstrates the thermal chemistry of the 2-phospaethynolate
anion with heavier pnictogens (Sb and Bi).
Collapse
Affiliation(s)
- Jacob E Walley
- Department of Chemistry, University of Virginia, 409 McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22903, United States
| | - Levi S Warring
- Department of Chemistry, University of Virginia, 409 McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22903, United States
| | - Erik Kertész
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
| | - Guocang Wang
- Department of Chemistry, University of Virginia, 409 McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22903, United States
| | - Diane A Dickie
- Department of Chemistry, University of Virginia, 409 McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22903, United States
| | - Zoltán Benkő
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
| | - Robert J Gilliard
- Department of Chemistry, University of Virginia, 409 McCormick Road, P.O. Box 400319, Charlottesville, Virginia 22903, United States
| |
Collapse
|
28
|
Xu J, Li M, Xu S, Pei G, Kong C, Ren X, Yang Z, Yang T, Zhou J, Hou GL. Designing stable closo-B 12 dianions in silico for Li- and Mg-ion battery applications. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00994j] [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 electronic structures and key factors controlling the stability of [B12(ECX)12]2− were revealed. Their good stability and weak binding property towards Li+ and Mg2+ suggest their potential application in Li- and Mg-ion batteries.
Collapse
Affiliation(s)
- Jianzhi Xu
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Mengyang Li
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Song Xu
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Gerui Pei
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Chuncai Kong
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Xueguang Ren
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Zhimao Yang
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Tao Yang
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Jian Zhou
- Center for Alloy Innovation and Design, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - Gao-Lei Hou
- MOE Key Laboratory for Non-Equilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- Quantum Solid-State Physics, Department of Physics and Astronomy, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| |
Collapse
|
29
|
Beer H, Bläsing K, Bresien J, Chojetzki L, Schulz A, Stoer P, Villinger A. Trapping of Brønsted acids with a phosphorus-centered biradicaloid - synthesis of hydrogen pseudohalide addition products. Dalton Trans 2020; 49:13655-13662. [PMID: 32985638 DOI: 10.1039/d0dt03251d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The trapping of classical hydrogen pseudohalides (HX, X = pseudohalogen = CN, N3, NCO, NCS, and PCO) utilizing a phosphorus-centered cyclic biradicaloid, [P(μ-NTer)]2, is reported. These formal Brønsted acids were generated in situ as gases and passed over the trapping reagent, the biradicaloid [P(μ-NTer)]2, leading to the formation of the addition product [HP(μ-NTer)2PX] (successful for X = CN, N3, and NCO). In addition to this direct addition reaction, a two-step procedure was also applied because we failed in isolating HPCO and HNCS addition products. This two-step process comprises the generation and isolation of the highly reactive [HP(μ-NTer)2PX]+ cation as a [B(C6F5)4]- salt, followed by salt metathesis with salts such as [cat]X (cat = PPh4, n-Bu3NMe), which also gives the desired [HP(μ-NTer)2PX] product, with the exception of the reaction with the PCO- salt. In this case, proton migration was observed, finally affording the formation of a [3.1.1]-hetero-propellane-type cage compound, an OC(H)P isomer of a HPCO adduct. All discussed species were fully characterized.
Collapse
Affiliation(s)
- Henrik Beer
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany.
| | - Kevin Bläsing
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany.
| | - Jonas Bresien
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany.
| | - Lukas Chojetzki
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany.
| | - Axel Schulz
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany. and Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Philip Stoer
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany.
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany.
| |
Collapse
|
30
|
Suter R, Wagner M, Querci L, Conti R, Benkő Z, Grützmacher H. 1,3,4-Azadiphospholides as building blocks for scorpionate and bidentate ligands in multinuclear complexes. Dalton Trans 2020; 49:8201-8208. [PMID: 32501468 DOI: 10.1039/d0dt01864c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Annulated oxy-substituted 1,3,4-azadiphospholides such as the anion in Na[1] are readily accessible phosphorus heterocycles made from the phosphaethynolate anion (OCP)- and 2-chloropyridines. The sodium salt Na[1] reacts with oxophilic element halides such as OPCl3, PhSiCl3, PhBCl2 and CpTiCl3 at room temperature to form exclusively the oxygen bound tris-substituted compounds E(1)3 (with E = OP, PhSi, PhB- or CpTi). Six equivalents of Na[1] with group four metal chlorides MCl4 (M = Ti, Zr, Hf) form cleanly the hexa-substituted dianions (Na2[M(1)6]) which are isolated in excellent yields. The titanium complexes are deeply coloured species due to ligand to metal charge transfer (LMCT) excitations. In all complexes, the phosphorus atoms of the azadiphosphole moieties are able to coordinate to a soft metal center as shown in their reactions with [Mo(CO)3Mes], yielding complexes in which the Mo(CO)3 binds in a fac manner. Functionalization of the oxy group with amino phosphanes allows isolation of tridentate ligands, which have been used as synthons for macrocyclic molybdenum carbonyl complexes.
Collapse
Affiliation(s)
- Riccardo Suter
- Department of Chemistry and Applied Biosciences, ETH Zurich, CH-8093 Zurich, Switzerland.
| | | | | | | | | | | |
Collapse
|
31
|
Bani-Fwaz MZ. Main group element-mediated phosphaalkyne by combined insertion and oligomerization reactions. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1757083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Mutasem Z. Bani-Fwaz
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, Abha, Saudi Arabia
| |
Collapse
|
32
|
van IJzendoorn B, Mehta M. Frontiers in the solution-phase chemistry of homoatomic group 15 Zintl clusters. Dalton Trans 2020; 49:14758-14765. [DOI: 10.1039/d0dt02890h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent developments in the solution-phase chemistry of polypnictogen Zintl cluster are discussed, including the preparation of new clusters, wet synthetic methods, and their subsequent small molecule activations.
Collapse
Affiliation(s)
| | - Meera Mehta
- Department of Chemistry
- The University of Manchester
- Manchester
- UK
| |
Collapse
|
33
|
Murphy MC, Trofimova A, LaFortune JHW, Vogels CM, Geier SJ, Binder JF, Macdonald CLB, Stephan DW, Westcott SA. The phosphinoboration of acyl chlorides. Dalton Trans 2020; 49:5092-5099. [DOI: 10.1039/d0dt00579g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This investigation examines the reactivity of phosphinoboronate esters Ph2PBpin (pin = 1,2-O2C2Me4) and Ph2PBcat (cat = 1,2-O2C6H4), as well as other phosphinoboron species, with various aryl and aliphatic acyl chlorides.
Collapse
Affiliation(s)
- Maia C. Murphy
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
| | | | | | | | - Stephen J. Geier
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
| | - Justin F. Binder
- Department of Chemistry and Biochemistry
- University of Windsor
- Windsor
- Canada
- Department of Chemistry
| | - Charles L. B. Macdonald
- Department of Chemistry and Biochemistry
- University of Windsor
- Windsor
- Canada
- Department of Chemistry
| | | | - Stephen A. Westcott
- Department of Chemistry and Biochemistry
- Mount Allison University
- Sackville
- Canada
| |
Collapse
|
34
|
Wilson DWN, Franco MP, Myers WK, McGrady JE, Goicoechea JM. Base induced isomerisation of a phosphaethynolato-borane: mechanistic insights into boryl migration and decarbonylation to afford a triplet phosphinidene. Chem Sci 2019; 11:862-869. [PMID: 34123064 PMCID: PMC8145529 DOI: 10.1039/c9sc05969e] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
We report on the (tert-butyl)isocyanide-catalysed isomersation of a phosphaethynolato-borane, [B]OCP ([B] = N,N′-bis(2,6-diisopropylphenyl)-2,3-dihydro-1H-1,3,2-diazaboryl), to its linkage isomer, a phosphaketenyl-borane, [B]PCO. Mechanistic insight into this unusual isomerisation was gained through a series of stoichiometric reactions of [B]OCP with isocyanides and theoretical calculations at the Density Functional Theory (DFT) level. [B]PCO decarbonylates under photolytic conditions to afford a novel boryl-substituted diphosphene, [B]P
Created by potrace 1.16, written by Peter Selinger 2001-2019
]]>
P[B]. This reaction proceeds via a transient triplet phosphinidene which we have been able to observe spectroscopically by Electron Paramagnetic Resonance (EPR) spectroscopy. We report on the (tert-butyl)isocyanide-catalysed isomersation of a phosphaethynolato-borane, [B]OCP, to its linkage isomer, a phosphaketenyl-borane, [B]PCO.![]()
Collapse
Affiliation(s)
- Daniel W N Wilson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
| | - Mauricio P Franco
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
| | - William K Myers
- Department of Chemistry, University of Oxford, Centre for Advanced ESR, Inorganic Chemistry Laboratory South Parks Road Oxford OX1 3QR UK
| | - John E McGrady
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
| | - Jose M Goicoechea
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
| |
Collapse
|
35
|
Hua G, Cordes DB, Slawin AMZ, Woollins JD. Reactivity of Woollins' Reagent toward 2-En-1-imines (Schiff Bases): A Facile Approach to Synthesize New Selenium-Phosphorus-Nitrogen Heterocycles. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Guoxiong Hua
- EastChem School of Chemistry; University of St Andrews; Fife; KY16 9ST St Andrews UK
| | - David B. Cordes
- EastChem School of Chemistry; University of St Andrews; Fife; KY16 9ST St Andrews UK
| | | | - J. Derek Woollins
- EastChem School of Chemistry; University of St Andrews; Fife; KY16 9ST St Andrews UK
- Department of Chemistry; Khalifa University; Abu Dhabi United Arab Emirates
| |
Collapse
|
36
|
Yuan Q, Tambornino F, Hinz A, Borden WT, Goicoechea JM, Chen B, Wang X. Photoelectron Spectroscopy and Theoretical Studies of PCSe
−
, AsCS
−
, AsCSe
−
, and NCSe
−
: Insights into the Electronic Structures of the Whole Family of ECX
−
Anions (E=N, P, As; X=O, S, Se). Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906904] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qinqin Yuan
- Physical Sciences Division Pacific Northwest National Laboratory 902 Battelle Boulevard, P. O. Box 999, MS K8-88 Richland WA 99352 USA
| | - Frank Tambornino
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Alexander Hinz
- Karlsruhe Institut of Technology (KIT) Institute for Inorganic Chemistry (AOC) Engesserstraße 15, Geb. 30.45 76131 Karlsruhe Germany
| | - Weston Thatcher Borden
- Department of Chemistry and the Center for Advanced Scientific Computing and Modeling University of North Texas 1155 Union Circle, #305070 Denton TX 76203-5070 USA
| | - Jose M. Goicoechea
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
| | - Bo Chen
- Department of Chemistry Pennsylvania State University University Park PA 16801 USA
| | - Xue‐Bin Wang
- Physical Sciences Division Pacific Northwest National Laboratory 902 Battelle Boulevard, P. O. Box 999, MS K8-88 Richland WA 99352 USA
| |
Collapse
|
37
|
Grant LN, Mindiola DJ. The Rise of Phosphaethynolate Chemistry in Early Transition Metals, Actinides, and Rare‐Earth Complexes. Chemistry 2019; 25:16171-16178. [DOI: 10.1002/chem.201902871] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Lauren N. Grant
- Department of Chemistry University of Pennsylvania Philadelphia PA 19104 USA
| | - Daniel J. Mindiola
- Department of Chemistry University of Pennsylvania Philadelphia PA 19104 USA
| |
Collapse
|
38
|
Ghosh M, Cramer HH, Dechert S, Demeshko S, John M, Hansmann MM, Ye S, Meyer F. A μ-Phosphido Diiron Dumbbell in Multiple Oxidation States. Angew Chem Int Ed Engl 2019; 58:14349-14356. [PMID: 31350785 PMCID: PMC6790664 DOI: 10.1002/anie.201908213] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Indexed: 11/06/2022]
Abstract
The reaction of the ferrous complex [LFe(NCMe)2 ](OTf)2 (1), which contains a macrocyclic tetracarbene as ligand (L), with Na(OCP) generates the OCP- -ligated complex [LFe(PCO)(CO)]OTf (2) together with the dinuclear μ-phosphido complex [(LFe)2 P](OTf)3 (3), which features an unprecedented linear Fe-(μ-P)-Fe motif and a "naked" P-atom bridge that appears at δ=+1480 ppm in the 31 P NMR spectrum. 3 exhibits rich redox chemistry, and both the singly and doubly oxidized species 4 and 5 could be isolated and fully characterized. X-ray crystallography, spectroscopic studies, in combination with DFT computations provide a comprehensive electronic structure description and show that the Fe-(μ-P)-Fe core is highly covalent and structurally invariant over the series of oxidation states that are formally described as ranging from FeIII FeIII to FeIV FeIV . 3-5 now add a higher homologue set of complexes to the many systems with Fe-(μ-O)-Fe and Fe-(μ-N)-Fe core structures that are prominent in bioinorganic chemistry and catalysis.
Collapse
Affiliation(s)
- Munmun Ghosh
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstrasse 437077GöttingenGermany
| | - Hanna H. Cramer
- Max-Planck Institut für Chemische EnergiekonversionStiftstrasse 34–3645470Mülheim an der RuhrGermany
| | - Sebastian Dechert
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstrasse 437077GöttingenGermany
| | - Serhiy Demeshko
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstrasse 437077GöttingenGermany
| | - Michael John
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstrasse 437077GöttingenGermany
| | - Max M. Hansmann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstrasse 237077GöttingenGermany
| | - Shengfa Ye
- Max-Planck Institut für KohlenforschungStiftstrasse 34–3645470Mülheim an der RuhrGermany
| | - Franc Meyer
- Institut für Anorganische ChemieGeorg-August-Universität GöttingenTammannstrasse 437077GöttingenGermany
| |
Collapse
|
39
|
Ghosh M, Cramer HH, Dechert S, Demeshko S, John M, Hansmann MM, Ye S, Meyer F. A μ‐Phosphido Diiron Dumbbell in Multiple Oxidation States. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Munmun Ghosh
- Institut für Anorganische Chemie Georg-August-Universität Göttingen Tammannstrasse 4 37077 Göttingen Germany
| | - Hanna H. Cramer
- Max-Planck Institut für Chemische Energiekonversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
| | - Sebastian Dechert
- Institut für Anorganische Chemie Georg-August-Universität Göttingen Tammannstrasse 4 37077 Göttingen Germany
| | - Serhiy Demeshko
- Institut für Anorganische Chemie Georg-August-Universität Göttingen Tammannstrasse 4 37077 Göttingen Germany
| | - Michael John
- Institut für Anorganische Chemie Georg-August-Universität Göttingen Tammannstrasse 4 37077 Göttingen Germany
| | - Max M. Hansmann
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - Shengfa Ye
- Max-Planck Institut für Kohlenforschung Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
| | - Franc Meyer
- Institut für Anorganische Chemie Georg-August-Universität Göttingen Tammannstrasse 4 37077 Göttingen Germany
| |
Collapse
|
40
|
Yuan Q, Tambornino F, Hinz A, Borden WT, Goicoechea JM, Chen B, Wang X. Photoelectron Spectroscopy and Theoretical Studies of PCSe
−
, AsCS
−
, AsCSe
−
, and NCSe
−
: Insights into the Electronic Structures of the Whole Family of ECX
−
Anions (E=N, P, As; X=O, S, Se). Angew Chem Int Ed Engl 2019; 58:15062-15068. [DOI: 10.1002/anie.201906904] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Qinqin Yuan
- Physical Sciences Division Pacific Northwest National Laboratory 902 Battelle Boulevard, P. O. Box 999, MS K8-88 Richland WA 99352 USA
| | - Frank Tambornino
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Alexander Hinz
- Karlsruhe Institut of Technology (KIT) Institute for Inorganic Chemistry (AOC) Engesserstraße 15, Geb. 30.45 76131 Karlsruhe Germany
| | - Weston Thatcher Borden
- Department of Chemistry and the Center for Advanced Scientific Computing and Modeling University of North Texas 1155 Union Circle, #305070 Denton TX 76203-5070 USA
| | - Jose M. Goicoechea
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA UK
| | - Bo Chen
- Department of Chemistry Pennsylvania State University University Park PA 16801 USA
| | - Xue‐Bin Wang
- Physical Sciences Division Pacific Northwest National Laboratory 902 Battelle Boulevard, P. O. Box 999, MS K8-88 Richland WA 99352 USA
| |
Collapse
|
41
|
Szkop KM, Jupp AR, Razumkov H, Xu M, Stephan DW. Diphospha-Ureas from the Phosphaketene Ph 3 GePCO. Chemistry 2019; 25:10084-10087. [PMID: 31215687 DOI: 10.1002/chem.201902789] [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: 06/17/2019] [Indexed: 11/12/2022]
Abstract
The phosphaketene Ph3 GePCO is shown to react with the phosphide KP(tBu)2 to generate the anion [Ph3 GePC(O)P(tBu)2 ]- 1. This species reacts with CH3 I or ClGePh3 to give the dissymmetric diphospha-ureas (tBu)2 PC(O)P(GePh3 )(CH3 ) 2 and (Ph3 Ge)2 PC(O)P(tBu)2 3 respectively. Sequential treatment of 2 with a base and CH3 I affords a route to (tBu)2 PC(O)P(CH3 )2 5. These species are products of the first modular diphospha-urea synthesis. The subsequent thermal and photochemical reactivity of these species was also probed and described.
Collapse
Affiliation(s)
- Kevin M Szkop
- Department of Chemistry, University of Toronto, 80 St. George St. Toronto, Ontario, M5S3H6, Canada
| | - Andrew R Jupp
- Department of Chemistry, University of Toronto, 80 St. George St. Toronto, Ontario, M5S3H6, Canada
| | - Hlib Razumkov
- Department of Chemistry, University of Toronto, 80 St. George St. Toronto, Ontario, M5S3H6, Canada
| | - Maotong Xu
- Department of Chemistry, University of Toronto, 80 St. George St. Toronto, Ontario, M5S3H6, Canada
| | - Douglas W Stephan
- Department of Chemistry, University of Toronto, 80 St. George St. Toronto, Ontario, M5S3H6, Canada
| |
Collapse
|
42
|
Magnall R, Balázs G, Lu E, Tuna F, Wooles AJ, Scheer M, Liddle ST. Trapping of a Highly Bent and Reduced Form of 2‐Phosphaethynolate in a Mixed‐Valence Diuranium–Triamidoamine Complex. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904676] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Rosie Magnall
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Gábor Balázs
- Institute of Inorganic ChemistryUniversity of Regensburg Universitätsstr.31 93053 Regensburg Germany
| | - Erli Lu
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Floriana Tuna
- School of Chemistry and Photon Science InstituteThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Ashley J. Wooles
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| | - Manfred Scheer
- Institute of Inorganic ChemistryUniversity of Regensburg Universitätsstr.31 93053 Regensburg Germany
| | - Stephen T. Liddle
- School of ChemistryThe University of Manchester Oxford Road Manchester M13 9PL UK
| |
Collapse
|
43
|
Magnall R, Balázs G, Lu E, Tuna F, Wooles AJ, Scheer M, Liddle ST. Trapping of a Highly Bent and Reduced Form of 2-Phosphaethynolate in a Mixed-Valence Diuranium-Triamidoamine Complex. Angew Chem Int Ed Engl 2019; 58:10215-10219. [PMID: 31125153 DOI: 10.1002/anie.201904676] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Indexed: 11/07/2022]
Abstract
The chemistry of 2-phosphaethynolate is burgeoning, but there remains much to learn about this ligand, for example its reduction chemistry is scarce as this promotes P-C-O fragmentations or couplings. Here, we report that reduction of [U(TrenTIPS )(OCP)] (TrenTIPS =N(CH2 CH2 NSiPri 3 )3 ) with KC8 /2,2,2-cryptand gives [{U(TrenTIPS )}2 {μ-η2 (OP):η2 (CP)-OCP}][K(2,2,2-cryptand)]. The coordination mode of this trapped 2-phosphaethynolate is unique, and derives from an unprecedented highly reduced and highly bent form of this ligand with the most acute P-C-O angle in any complex to date (P-C-O ∡ ≈127°). The characterisation data support a mixed-valence diuranium(III/IV) formulation, where backbonding from uranium gives a highly reduced form of the P-C-O unit that is perhaps best described as a uranium-stabilised OCP2-. radical dianion. Quantum chemical calculations reveal that this gives unprecedented carbene character to the P-C-O unit, which engages in a weak donor-acceptor interaction with one of the uranium ions.
Collapse
Affiliation(s)
- Rosie Magnall
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Gábor Balázs
- Institute of Inorganic Chemistry, University of Regensburg, Universitätsstr.31, 93053, Regensburg, Germany
| | - Erli Lu
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Floriana Tuna
- School of Chemistry and Photon Science Institute, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Ashley J Wooles
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Manfred Scheer
- Institute of Inorganic Chemistry, University of Regensburg, Universitätsstr.31, 93053, Regensburg, Germany
| | - Stephen T Liddle
- School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| |
Collapse
|
44
|
Qu Z, Zhu H, Grimme S. Acylation Reactions of Dibenzo-7-phosphanorbornadiene: DFT Mechanistic Insights. ChemistryOpen 2019; 8:807-810. [PMID: 31293872 PMCID: PMC6594351 DOI: 10.1002/open.201900176] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/06/2019] [Indexed: 11/09/2022] Open
Abstract
Extensive DFT calculations provide deep mechanistic insights into the acylation reactions of tert-butyl dibenzo-7-phosphanobornadiene with PhCOX (X=Cl, Br, I, OTf) in CH2Cl2 solution. Such reactions are initialized by the nucleophilic P⋅⋅⋅C attack to the carbonyl group to form the acylphosphonium intermediate A+ together with X- anion, followed either by nucleophilic X-⋅⋅⋅P attack (X=Cl, Br, and I) toward A+ to eliminate anthracene or by slow rearrangement or decomposition of A+ (X=OTf). In contrast to the first case (X=Cl) that is rate-limited by the initial P⋅⋅⋅C attack, other reactions are rate-limited by the second X-⋅⋅⋅P attack for X=Br and I and even thermodynamically prevented for X=OTf, leading to isolable phosphonium salts. The rearrangement of phosphonium A+ is initiated by a P-C bond cleavage, followed either by sequential proton-shifts to form anthracenyl acylphosphonium or by deprotonation with additional base Et3N to form neutral anthracenyl acylphosphine. Our DFT results strongly support the separated acylphosphonium A+ as the key reaction intermediate that may be useful for the transfer of acylphosphenium in general.
Collapse
Affiliation(s)
- Zheng‐Wang Qu
- Mulliken Center for Theoretical ChemistryUniversity of BonnBeringstr. 453115BonnGermany
| | - Hui Zhu
- Mulliken Center for Theoretical ChemistryUniversity of BonnBeringstr. 453115BonnGermany
| | - Stefan Grimme
- Mulliken Center for Theoretical ChemistryUniversity of BonnBeringstr. 453115BonnGermany
| |
Collapse
|
45
|
Szkop KM, Geeson MB, Stephan DW, Cummins CC. Synthesis of acyl(chloro)phosphines enabled by phosphinidene transfer. Chem Sci 2019; 10:3627-3631. [PMID: 30996956 PMCID: PMC6432624 DOI: 10.1039/c8sc05657a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 02/06/2019] [Indexed: 12/25/2022] Open
Abstract
Acyl(chloro)phosphines RC(O)P(Cl)(t-Bu) have been prepared by formal insertion of tert-butyl phosphinidene (t-Bu–P) from t-BuPA (A = C14H10 or anthracene) into the C–Cl bond of acyl chlorides.
Acyl(chloro)phosphines RC(O)P(Cl)(t-Bu) have been prepared by formal insertion of tert-butyl phosphinidene (t-Bu–P) from t-BuPA (A = C14H10 or anthracene) into the C–Cl bond of acyl chlorides. We show that the under-explored acyl(chloro)phosphine functional group provides an efficient method to prepare bis(acyl)phosphines, which are important precursors to compounds used industrially as radical polymerization initiators. Experimental and computational investigations into the mechanism of formation of acyl(chloro)phosphines by our synthetic method reveal a pathway in which chloride attacks a phosphonium intermediate and leads to the reductive loss of anthracene from the phosphorus center in a P(v) to P(iii) process. The synthetic applicability of the acyl(chloro)phosphine functional group has been demonstrated by reduction to an acylphosphide anion, which can in turn be treated with an acyl chloride to furnish dissymmetric bis(acyl)phosphines.
Collapse
Affiliation(s)
- Kevin M Szkop
- Department of Chemistry , University of Toronto , 80 St George St , Toronto , Ontario M5S3H6 , Canada . ; Tel: +1 416 946 3294.,Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139-4307 , USA . ; Tel: +1 617 253 5332
| | - Michael B Geeson
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139-4307 , USA . ; Tel: +1 617 253 5332
| | - Douglas W Stephan
- Department of Chemistry , University of Toronto , 80 St George St , Toronto , Ontario M5S3H6 , Canada . ; Tel: +1 416 946 3294
| | - Christopher C Cummins
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139-4307 , USA . ; Tel: +1 617 253 5332
| |
Collapse
|
46
|
Borger JE, Le Corre G, Mei Y, Suter R, Schrader E, Grützmacher H. Transient Dipnictyl Analogues of Acrylamides, R−E=E′−CONR
2
, and a Related Diphosphadigalletane from Na[OCP] and (R
2
N)
2
ECl (E, E′=P, As, Ga). Chemistry 2019; 25:3957-3962. [DOI: 10.1002/chem.201806116] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Jaap E. Borger
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog Weg 1 Hönggerberg 8093 Zürich Switzerland
| | - Grégoire Le Corre
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog Weg 1 Hönggerberg 8093 Zürich Switzerland
| | - Yanbo Mei
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog Weg 1 Hönggerberg 8093 Zürich Switzerland
| | - Riccardo Suter
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog Weg 1 Hönggerberg 8093 Zürich Switzerland
| | - Erik Schrader
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog Weg 1 Hönggerberg 8093 Zürich Switzerland
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied BiosciencesETH Zürich Vladimir-Prelog Weg 1 Hönggerberg 8093 Zürich Switzerland
- School of ChemistryLehn Institute of Functional Materials (LIFM)Sun Yat-sen University 135 West Xingang Road Guangzhou 510275 P. R. China
| |
Collapse
|
47
|
Hou Y, Li Z, Li Y, Liu P, Su CY, Puschmann F, Grützmacher H. Making the unconventional μ 2-P bridging binding mode more conventional in phosphinine complexes. Chem Sci 2019; 10:3168-3180. [PMID: 30996898 PMCID: PMC6427944 DOI: 10.1039/c8sc05281f] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 01/16/2019] [Indexed: 12/15/2022] Open
Abstract
As compared to the normal η1-P σ-complexes or η6-phosphinine π-complexes, the rare μ2-P bridging binding mode of phosphinines can be tuned by employing electron donating substitute.
Phosphinines, as aromatic heterocycles, usually engage in coordination as η1-P σ-complexes or η6-phosphinine π-complexes. The μ2-P bridging coordination mode is rarely observed. With the aim to study the effect of different electronic configurations of phosphinines on the coordination modes, a series of anionic phosphinin-2-olates and neutral phosphinin-2-ols were prepared with moderate to high yield. Then the coordination chemistry of these two series was studied in detail towards coinage metals (Au(i) and Cu(i)). It is observed that the anionic phosphinin-2-olates possess a higher tendency to take a bridging position between two metal centers compared to the neutral phosphinin-2-ols. Based on these experimental findings bolstered by DFT calculations, some insight is gained on how the unconventional μ2-P phosphinine bridging coordination mode can be made more conventional and used for the synthesis of polynuclear complexes.
Collapse
Affiliation(s)
- Yuanfeng Hou
- Lehn Institute of Functional Materials (LIFM) , School of Chemistry , Sun Yat-Sen University , 510275 Guangzhou , China .
| | - Zhongshu Li
- Lehn Institute of Functional Materials (LIFM) , School of Chemistry , Sun Yat-Sen University , 510275 Guangzhou , China .
| | - Yaqi Li
- Lehn Institute of Functional Materials (LIFM) , School of Chemistry , Sun Yat-Sen University , 510275 Guangzhou , China .
| | - Peng Liu
- Guangdong Engineering and Technology Research Center for Advanced Nanomaterials , School of Environment and Civil Engineering , Dongguan University of Technology , Dongguan 523808 , China
| | - Cheng-Yong Su
- Lehn Institute of Functional Materials (LIFM) , School of Chemistry , Sun Yat-Sen University , 510275 Guangzhou , China .
| | - Florian Puschmann
- Department of Chemistry and Applied Biosciences , ETH Zürich , 8093 Zürich , Switzerland .
| | - Hansjörg Grützmacher
- Lehn Institute of Functional Materials (LIFM) , School of Chemistry , Sun Yat-Sen University , 510275 Guangzhou , China . .,Department of Chemistry and Applied Biosciences , ETH Zürich , 8093 Zürich , Switzerland .
| |
Collapse
|
48
|
Tambornino F, Tanner EEL, Amin HMA, Holter J, Claridge T, Compton RG, Goicoechea JM. Electrochemical Oxidation of the Phospha‐ and Arsaethynolate Anions, PCO
–
and AsCO
–. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Frank Tambornino
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road OX1 3TA Oxford United Kingdom
| | - Eden E. L. Tanner
- Department of Chemistry University of Oxford Physical and Theoretical Chemistry Laboratory South Parks Road OX1 3QZ Oxford United Kingdom
| | - Hatem M. A. Amin
- Department of Chemistry University of Oxford Physical and Theoretical Chemistry Laboratory South Parks Road OX1 3QZ Oxford United Kingdom
| | - Jennifer Holter
- Department of Materials University of Oxford Parks Road OX1 3PH Oxford United Kingdom
| | - Tim Claridge
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road OX1 3TA Oxford United Kingdom
| | - Richard G. Compton
- Department of Chemistry University of Oxford Physical and Theoretical Chemistry Laboratory South Parks Road OX1 3QZ Oxford United Kingdom
| | - Jose M. Goicoechea
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road OX1 3TA Oxford United Kingdom
| |
Collapse
|
49
|
Mei Y, Borger JE, Wu DJ, Grützmacher H. Salen supported Al–O–CP and Ga–PCO complexes. Dalton Trans 2019; 48:4370-4374. [DOI: 10.1039/c9dt00485h] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The synthesis and reactivity of salen supported OCP adducts of aluminium and gallium is reported.
Collapse
Affiliation(s)
- Yanbo Mei
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- 8093 Zürich
- Switzerland
| | - Jaap E. Borger
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- 8093 Zürich
- Switzerland
| | - Dong-Jun Wu
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- 8093 Zürich
- Switzerland
- Lehn Institute of Functional Materials (LIFM)
| | - Hansjörg Grützmacher
- Department of Chemistry and Applied Biosciences
- ETH Zürich
- 8093 Zürich
- Switzerland
- Lehn Institute of Functional Materials (LIFM)
| |
Collapse
|
50
|
Affiliation(s)
- Jose M. Goicoechea
- Department of Chemistry University of Oxford Chemistry Research Laboratory 12 Mansfield Road Oxford OX1 3TA Großbritannien
| | | |
Collapse
|