1
|
Wang S, Heng Y, Li T, Hou G, Zi G, Walter MD. Synthesis and reactivity of the uranium phosphinidene metallocene [η 5-1,3-(Me 3Si) 2C 5H 3] 2U([double bond, length as m-dash]P-2,4,6- iPr 3C 6H 2)(OPMe 3): influence of the coordinated Lewis base. Dalton Trans 2021; 50:12502-12516. [PMID: 34342314 DOI: 10.1039/d1dt02149d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This paper describes the synthesis and reactivity of [η5-1,3-(Me3Si)2C5H3]2U([double bond, length as m-dash]P-2,4,6-iPr3C6H2)(OPMe3) (6) which is accessible from a ligand exchange reaction between [η5-1,3-(Me3Si)2C5H3]2U([double bond, length as m-dash]P-2,4,6-iPr3C6H2)(OPPh3) (2) and Me3PO at ambient temperature. Phosphinidene 6 exhibits no reactivity towards internal alkynes, but readily reacts with various hetero-unsaturated molecules such as isothiocyanates, aldehydes, nitriles, isonitriles, and organic azides, forming uranium sulfido, oxido, imido, and uranaheterocyclic compounds. Nevertheless, with the bidentate ortho-dicyanobenzene o-C6H4(CN)2 the zwitterionic species [η5-1,3-(Me3Si)2C5H3]2U[NHC(N){C6H4CP(2,4,6-iPr3C6H2)CH2PMe2O}] (13) is isolated in good yield. Moreover, 6 converts with Ph2S2 to the uranium(iii) phenylthiolate compound [η5-1,3-(Me3Si)2C5H3]2USPh(OPMe3) (7) in good isolated yield. Furthermore, the influence of the Lewis base on the reactivity of the uranium phosphinidene metallocenes has also been evaluated.
Collapse
Affiliation(s)
- Shichun Wang
- Department of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Yi Heng
- Department of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Tongyu Li
- Department of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Guohua Hou
- Department of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Guofu Zi
- Department of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Marc D Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany.
| |
Collapse
|
2
|
Wang S, Li T, Heng Y, Hou G, Zi G, Walter MD. Influence of the 1,3-Bis(trimethylsilyl)cyclopentadienyl Ligand on the Reactivity of the Uranium Phosphinidene [η5-1,3-(Me3Si)2C5H3]2U(═P-2,4,6-iPr3C6H2)(OPPh3). Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shichun Wang
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Tongyu Li
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yi Heng
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| |
Collapse
|
3
|
Ziółkowska A, Szynkiewicz N, Ponikiewski Ł. Experimental and theoretical investigation of the reactivity of [(BDI*)Ti(Cl){η 2-P(SiMe 3)-P iPr 2}] towards selected ketones. Dalton Trans 2021; 50:1390-1401. [PMID: 33433538 DOI: 10.1039/d0dt04014b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In this work, we report a new type of reactivity of [(BDI*)Ti(Cl){η2-P(SiMe3)-PiPr2}] (1) towards ketones (BDI* = 2,6-diisopropylphenyl-β-methyldiketiminate ligand). In the reaction of 1 with acetone, cyclopentanone or cyclohexanone, a ketone moiety is inserted into Ti-Pphosphanyl or Ti-Pphosphido bonds to form complexes with a new C-P-P moiety, providing [(BDI*)Ti(Cl){η2-P(SiMe3)-PiPr2-C(Me)2O}] (2a), [(BDI*)Ti(Cl){η2-OC(Me)2P(SiMe3)-PiPr2}] (2b), [(BDI*)Ti(Cl){η2-P(SiMe3)-P(iPr)2-{C(CH2)4}O}] (3a), and [(BDI*)Ti(Cl){η2-P(SiMe3)-P(iPr)2-{C(CH2)5}O}] (4a). Starting complex 1 reacts with cyclohexanone, yielding a monocrystalline complex [{(ArN[double bond, length as m-dash]C(Me)CHC(Me)[double bond, length as m-dash]NAr)C(CH2)5O}Ti(Cl){PiPr2-P(SiMe3)C(CH2)5O}] (4d) with the insertion of two ketone molecules. Interestingly, we found that monoinserted complexes 2a and 3a may be oxidized via a reaction with AgCl, leading to elimination of the -SiMe3 group and oxidation of the titanium atom. This reaction led us to isolate the Ti(iv) complex [(BDI*)Ti(Cl){η2-P-P(iPr)2-{C(CH2)5}O}] (5) in crystalline form. To identify the kinds of products that may be formed and determine which products are the most energetically favoured ones, we conducted a thermodynamic DFT study of 1 towards acetone, cyclopentanone and cyclohexanone. Structures 2a, 2b, 3a, 3e, 4a, 4d, and 5 were characterized by X-ray crystallography, and complex 5 was also identified by NMR spectroscopy.
Collapse
Affiliation(s)
- Aleksandra Ziółkowska
- Gdansk University of Technology, Faculty of Chemistry, Department of Inorganic Chemistry, Gabriela Narutowicza Str. 11/12, 80-233 Gdansk, Poland.
| | - Natalia Szynkiewicz
- Gdansk University of Technology, Faculty of Chemistry, Department of Inorganic Chemistry, Gabriela Narutowicza Str. 11/12, 80-233 Gdansk, Poland.
| | - Łukasz Ponikiewski
- Gdansk University of Technology, Faculty of Chemistry, Department of Inorganic Chemistry, Gabriela Narutowicza Str. 11/12, 80-233 Gdansk, Poland.
| |
Collapse
|
4
|
Wang D, Hou G, Zi G, Walter MD. Influence of the Lewis Base Ph3PO on the Reactivity of the Uranium Phosphinidene (η5-C5Me5)2U(═P-2,4,6-iPr3C6H2)(OPPh3). Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00716] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Deqiang Wang
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| |
Collapse
|
5
|
Wang D, Wang S, Li T, Heng Y, Hou G, Zi G, Walter MD. Reactivity studies involving a Lewis base supported terminal uranium phosphinidene metallocene [η5-1,3-(Me3C)2C5H3]2U(P-2,4,6-iPr3C6H2)(OPMe3). Dalton Trans 2021; 50:8349-8363. [DOI: 10.1039/d1dt00742d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Small variations in the phosphinidene substituents, but significant change the reactivity of the uranium phosphinidene complexes.
Collapse
Affiliation(s)
- Deqiang Wang
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Shichun Wang
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Tongyu Li
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Yi Heng
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Guohua Hou
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Guofu Zi
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| |
Collapse
|
6
|
Wang D, Ding W, Hou G, Zi G, Walter MD. Experimental and Computational Studies on a Base-Free Terminal Uranium Phosphinidene Metallocene. Chemistry 2020; 26:16888-16899. [PMID: 32744750 PMCID: PMC7756876 DOI: 10.1002/chem.202003465] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 07/31/2020] [Indexed: 12/26/2022]
Abstract
The first stable base‐free terminal uranium phosphinidene metallocene is presented; and its structure and reactivity have been studied in detail and compared to that of the corresponding thorium derivative. Salt metathesis reaction of the methyl iodide uranium metallocene Cp’’’2U(I)Me (2, Cp’’’=η5‐1,2,4‐(Me3C)3C5H2) with Mes*PHK (Mes*=2,4,6‐(Me3C)3C6H2) in THF yields the base‐free terminal uranium phosphinidene metallocene, Cp’’’2U=PMes* (3). In addition, density functional theory (DFT) studies suggest substantial 5f orbital contributions to the bonding within the uranium phosphinidene [U]=PAr moiety, which results in a more covalent bonding between the [Cp’’’2U]2+ and [Mes*P]2− fragments than that for the related thorium derivative. This difference in bonding besides steric reasons causes different reactivity patterns for both molecules. Therefore, the uranium derivative 3 may act as a Cp’’’2U(II) synthon releasing the phosphinidene moiety (Mes*P:) when treated with alkynes or a variety of hetero‐unsaturated molecules such as imines, thiazoles, ketazines, bipy, organic azides, diazene derivatives, ketones, and carbodiimides.
Collapse
Affiliation(s)
- Deqiang Wang
- Department of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Wanjian Ding
- Department of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Guohua Hou
- Department of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Guofu Zi
- Department of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Marc D Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
| |
Collapse
|
7
|
Wang D, Hou G, Zi G, Walter MD. (η5-C5Me5)2U(=P-2,4,6-tBu3C6H2)(OPMe3) Revisited—Its Intrinsic Reactivity toward Small Organic Molecules. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00640] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Deqiang Wang
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| |
Collapse
|
8
|
Wang D, Wang S, Hou G, Zi G, Walter MD. A Lewis Base Supported Terminal Uranium Phosphinidene Metallocene. Inorg Chem 2020; 59:14549-14563. [DOI: 10.1021/acs.inorgchem.0c02363] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Deqiang Wang
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Shichun Wang
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| |
Collapse
|
9
|
Ordyszewska A, Szynkiewicz N, Chojnacki J, Pikies J, Grubba R. The Reactivity of Phosphanylphosphinidene Complexes of Transition Metals Toward Terminal Dihaloalkanes. Inorg Chem 2020; 59:5463-5474. [PMID: 32216307 PMCID: PMC7588032 DOI: 10.1021/acs.inorgchem.0c00091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
The
reactivities of phosphanylphosphinidene complexes [(DippN)2W(Cl)(η2-P–PtBu2)]− (1), [(pTol3P)2Pt(η2-P=PtBu2)] (2), and [(dppe)Pt(η2-P=PtBu2)] (3) toward
dihaloalkanes and methyl iodide were investigated. The reactions of
the anionic tungsten complex (1) with stochiometric Br(CH2)nBr (n = 3,
4, 6) led to the formation of neutral complexes with a tBu2PP(CH2)3Br ligand or neutral
dinuclear complexes with unusual tetradentate tBu2PP(CH2)nPPtBu2 ligands (n = 4, 6). The methylation of platinum
complexes 2 and 3 with MeI yielded neutral
or cationic complexes bearing side-on coordinated tBu2P–P-Me moieties. The reaction of 2 with I(CH2)2I gave a platinum complex with
a tBu2P—P—I ligand. When
the same dihaloalkane was reacted with 3, the P—P
bond in the phosphanylphosphinidene ligand was cleaved to yield tBu2PI, phosphorus polymers, [(dppe)PtI2] and C2H4. Furthermore, the reaction of 3 with Br(CH2)2Br yielded dinuclear
complex bearing a tetraphosphorus tBu2PPPPtBu2 ligand in the coordination sphere
of the platinum. The molecular structures of the isolated products
were established in the solid state and in solution by single-crystal
X-ray diffraction and NMR spectroscopy. DFT studies indicated that
the polyphosphorus ligands in the obtained complexes possess structures
similar to free phosphenium cations tBu2P+=P−R (R = Me, I) or (tBu2P+=P)2. The phosphanylphosphinidene complexes of tungsten and platinum
as building blocks for syntheses of polydentate phosphorus ligands.
Collapse
Affiliation(s)
- Anna Ordyszewska
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Strasse 80-233 Gdańsk, Poland
| | - Natalia Szynkiewicz
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Strasse 80-233 Gdańsk, Poland
| | - Jarosław Chojnacki
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Strasse 80-233 Gdańsk, Poland
| | - Jerzy Pikies
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Strasse 80-233 Gdańsk, Poland
| | - Rafał Grubba
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Gabriela Narutowicza Strasse 80-233 Gdańsk, Poland
| |
Collapse
|
10
|
Zhang C, Hou G, Zi G, Ding W, Walter MD. An Alkali-Metal Halide-Bridged Actinide Phosphinidiide Complex. Inorg Chem 2019; 58:1571-1590. [DOI: 10.1021/acs.inorgchem.8b03091] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Congcong Zhang
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Wanjian Ding
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| |
Collapse
|
11
|
Wang Y, Zhang C, Zi G, Ding W, Walter MD. Preparation of a potassium chloride bridged thorium phosphinidiide complex and its reactivity towards small organic molecules. NEW J CHEM 2019. [DOI: 10.1039/c9nj02269d] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The steric and electronic properties of the coordinated ligands modulate the reactivity of thorium phosphinidene complexes.
Collapse
Affiliation(s)
- Yongsong Wang
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Congcong Zhang
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Guofu Zi
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Wanjian Ding
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30
- Braunschweig
- Germany
| |
Collapse
|
12
|
Zhang C, Hou G, Zi G, Walter MD. A base-free terminal thorium phosphinidene metallocene and its reactivity toward selected organic molecules. Dalton Trans 2019; 48:2377-2387. [DOI: 10.1039/c9dt00012g] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Small molecule activation mediated by a base-free terminal phosphinidene thorium metallocene is reported.
Collapse
Affiliation(s)
- Congcong Zhang
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Guohua Hou
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Guofu Zi
- Department of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie
- Technische Universität Braunschweig
- 38106 Braunschweig
- Germany
| |
Collapse
|
13
|
Zhang C, Hou G, Zi G, Ding W, Walter MD. A Base-Free Terminal Actinide Phosphinidene Metallocene: Synthesis, Structure, Reactivity, and Computational Studies. J Am Chem Soc 2018; 140:14511-14525. [DOI: 10.1021/jacs.8b09746] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Congcong Zhang
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guohua Hou
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Guofu Zi
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Wanjian Ding
- Department of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| |
Collapse
|
14
|
Wiśniewska A, Grubba R, Ponikiewski Ł, Zauliczny M, Pikies J. The new diphosphanylphosphido complexes of tungsten(vi) and molybdenum(vi). Their synthesis, structures and properties. Dalton Trans 2018; 47:10213-10222. [PMID: 30014069 DOI: 10.1039/c8dt01977k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the reactivity of R2P-P(Li)-PR'2 (R = tBu, iPr, R' = NEt2, iPr) towards diimido complexes [(dippN)2MCl2·dme] (M = Mo, W and dipp = 2,6-iPr2C6H3). A series of new complexes with diphosphanylphosphido ligands R2P-P-PR'2 were isolated. The solid-state structures of [(dippN)2M(Cl)(1,2-η-iPr2P-P-PiPr2)] (2Mo and 2W) and [(dippN)2M(Cl){1,2-η-tBu2P-P-P(NEt2)2}] (3Mo and 3W) were established by single-crystal X-ray diffraction analysis and indicate a side-on geometry of the R2P-P-PR'2 moiety. 3W and 3Mo are the first triphosphorus complexes with the amido ligand NEt2 on the P atom. [(dippN)2M(Cl)(1,2-η-tBu2P-P-PtBu2)] (1Mo and 1W) and 3Mo and 3W display similar side-on geometry in solution and in the solid state. By contrast, 2Mo and 2W reveal a dynamic behavior in solution. For the first time, the reactivity of diphosphanylphosphido complexes towards different nucleophiles was studied. The complexes react with the phosphorus nucleophile Ph2PLi, yielding phosphanylphosphinidene complexes [(dippN)2M(Cl)(η2-P-PR2)]- Li+ (M = Mo, W) together with related diphosphanes R'2P-PPh2. Carbon nucleophile MeLi does not yield [(dippN)2M(Cl)(η2-P-PR2)]- Li+ but substitutes a Cl ligand at the metal center. Moreover, we compare the coordination of the R2P-P-PR'2 moiety to different metal centers based on DFT methods.
Collapse
Affiliation(s)
- A Wiśniewska
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland.
| | | | | | | | | |
Collapse
|
15
|
Phosphanylphosphido and phosphanylphosphinidene complexes of zirconium(IV) supported by bidentate N,N ligands. Polyhedron 2017. [DOI: 10.1016/j.poly.2016.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Ponikiewski Ł, Ziółkowska A, Pikies J. Reactions of Lithiated Diphosphanes R 2P-P(SiMe 3)Li (R = tBu and iPr) with [ MeNacnacTiCl 2·THF] and [ MeNacnacTiCl 3]. Formation and Structure of Titanium III and Titanium IV β-Diketiminato Complexes Bearing the Side-on Phosphanylphosphido and Phosphanylphosphinidene Functionalities. Inorg Chem 2017; 56:1094-1103. [PMID: 28084072 DOI: 10.1021/acs.inorgchem.6b01929] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
β-Diketiminate complexes of TiIII-containing phosphanylphosphido ligands [MeNacnacTi(Cl){η2-P(SiMe3)-PR2}] (MeNacnac- = [Ar]NC(Me)CHC(Me)N[Ar]; Ar = 2,6-iPr2C6H3) were prepared by reactions of [MeNacnacTiCl2·THF] with lithium derivatives of diphosphanes R2P-P(SiMe3)Li (R = tBu, iPr) in toluene solutions. Surprisingly, reactions of [MeNacnacTiCl2·THF] with R2P-P(SiMe3)Li in THF solutions led to TiIV complexes containing phosphanylphosphinidene ligands [MeNacnacTi(Cl)(η2-P-PtBu2)] via an autoredox path involving a migration of a nitrene NAr from the Nacnac skeleton to the Ti centers. Solid-state structures of [MeNacnacTi(Cl){η2-P(SiMe3)-PtBu2}] (1a) and [MeNacnacTi(Cl)(η2-P-PtBu2)] (two isomers 2a1, 2a2) together with [MeNacnacTi(Cl){η2-P(SiMe3)-PiPr2}] (1b) and [MeNacnacTi(Cl)(η2-P-PiPr2)] (2b) were established by the single-crystal X-ray diffraction and display clearly side-on geometry of the (Me3Si)P-PR2 and P-PR2 moieties in the solid state. Phosphanylphosphinidene complexes [MeNacnacTi(Cl)(η2-P-PR2)] indicate that the 31P NMR resonances of phosphinidene P atoms appear at a very low field in solution and in the solid state.
Collapse
Affiliation(s)
- Ł Ponikiewski
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology , 11/12 Gabriela Narutowicza Str, 80-233 Gdansk, Poland
| | - A Ziółkowska
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology , 11/12 Gabriela Narutowicza Str, 80-233 Gdansk, Poland
| | - J Pikies
- Department of Inorganic Chemistry, Chemical Faculty, Gdansk University of Technology , 11/12 Gabriela Narutowicza Str, 80-233 Gdansk, Poland
| |
Collapse
|
17
|
Thakur A, Mandal D. Neutral tris(azolyl)phosphanes: An intriguing class of molecules in chemistry. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.09.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
18
|
Grubba R, Ordyszewska A, Ponikiewski Ł, Gudat D, Pikies J. An investigation on the chemistry of the R2P = P ligand: reactions of a phosphanylphosphinidene complex of tungsten(VI) with electrophilic reagents. Dalton Trans 2015; 45:2172-9. [PMID: 26556527 DOI: 10.1039/c5dt03085d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The nucleophilic properties of the title compound [(2,6-i-Pr2C6H3N)2(Cl)W(η(2)-t-Bu2P = P)]Li·3DME (1) were investigated in reactions with selected electrophilic reagents such as MeI, M(CO)5THF (M = Cr, Mo, W), AlCl3, and GaCl3. Methylation of 1 by MeI yields phosphanylphosphido complexes [(2,6-i-Pr2C6H3N)2W(X)(1,2-η-t-Bu2P = P-CH3)] (X = Cl, I) (2-Cl/2-I) with the formation of a new P-C bond. Moreover, 1 reacts with electrophilic compounds [(OC)5M·THF] (M = Cr, Mo, W) to yield a series of novel dinuclear phosphanylphosphinidene complexes [(2,6-i-Pr2C6H3N)2(Cl)W(1,2-η-t-Bu2P = P-M(CO)5)]Li·3DME (3, 4, 5) with very long P-M distances. Adducts [(2,6-i-Pr2C6H3N)2(Cl)W(1,2-η-t-Bu2P = P-MCl3)]Li·3DME (6, 7) formed by reaction of 1 with GaCl3 and AlCl3 are labile and dissociate into 1 and MCl3 (M = Ga, Al). The outcomes of reactions were monitored by (31)P-NMR spectroscopy. Furthermore, the structures of the isolated complexes 2-Cl/2-I, 3, 4, and [(2,6-i-Pr2C6H3N)2(Cl)W(1,2-η-t-Bu2P = P-W(t-Bu2PH)(CO)3COLi·2DME] (5-P) were confirmed unambiguously by X-ray diffraction studies.
Collapse
Affiliation(s)
- Rafał Grubba
- Chemical Faculty, Department of Inorganic Chemistry, Gdansk University of Technology, G. Narutowicza St. 11/12, Pl-80-233 Gdansk, Poland.
| | | | | | | | | |
Collapse
|
19
|
Grubba R, Ordyszewska A, Kaniewska K, Ponikiewski Ł, Chojnacki J, Gudat D, Pikies J. Reactivity of Phosphanylphosphinidene Complex of Tungsten(VI) toward Phosphines: A New Method of Synthesis of catena-Polyphosphorus Ligands. Inorg Chem 2015; 54:8380-7. [PMID: 26287312 DOI: 10.1021/acs.inorgchem.5b01063] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reactivity of an anionic phosphanylphosphinidene complex of tungsten(VI), [(2,6-i-Pr2C6H3N)2(Cl)W(η(2)-t-Bu2P═P)]Li·3DME toward PMe3, halogenophosphines, and iodine was investigated. Reaction of the starting complex with Me3P led to formation of a new neutral phosphanylphosphinidene complex, [(2,6-i-Pr2C6H3N)2(Me3P)W(η(2)-t-Bu2P═P)]. Reactions with halogenophosphines yielded new catena-phosphorus complexes. From reaction with Ph2PCl and Ph2PBr, a complex with an anionic triphosphorus ligand t-Bu2P-P((-))-PPh2 was isolated. The main product of reaction with PhPCl2 was a tungsten(VI) complex with a pentaphosphorus ligand, t-Bu2P-P((-))-P(Ph)-P((-))-P-t-Bu2. Iodine reacted with the starting complex as an electrophile under splitting of the P-P bond in the t-Bu2P═P unit to yield [(1,2-η-t-Bu2P-P-P-t-Bu2)W(2,6-i-Pr2C6H3N)2Cl], t-Bu2PI, and phosphorus polymers. The molecular structures of the isolated products in the solid state and in solution were established by single crystal X-ray diffraction and NMR spectroscopy.
Collapse
Affiliation(s)
- Rafał Grubba
- Chemical Faculty, Department of Inorganic Chemistry, Gdansk University of Technology , G. Narutowicza St. 11/12, Pl-80-233 Gdansk, Poland
| | - Anna Ordyszewska
- Chemical Faculty, Department of Inorganic Chemistry, Gdansk University of Technology , G. Narutowicza St. 11/12, Pl-80-233 Gdansk, Poland
| | - Kinga Kaniewska
- Chemical Faculty, Department of Inorganic Chemistry, Gdansk University of Technology , G. Narutowicza St. 11/12, Pl-80-233 Gdansk, Poland
| | - Łukasz Ponikiewski
- Chemical Faculty, Department of Inorganic Chemistry, Gdansk University of Technology , G. Narutowicza St. 11/12, Pl-80-233 Gdansk, Poland
| | - Jarosław Chojnacki
- Chemical Faculty, Department of Inorganic Chemistry, Gdansk University of Technology , G. Narutowicza St. 11/12, Pl-80-233 Gdansk, Poland
| | - Dietrich Gudat
- Institut für Anorganische Chemie, Universität Stuttgart , Pfaffenwaldring 55, 70550 Stuttgart, Germany
| | - Jerzy Pikies
- Chemical Faculty, Department of Inorganic Chemistry, Gdansk University of Technology , G. Narutowicza St. 11/12, Pl-80-233 Gdansk, Poland
| |
Collapse
|
20
|
Waterman R, Mindiola DJ, Clough CR, Hillhouse GL. Synthesis, structure, and reactivity of platinum compounds featuring terminal amido and phosphido ligands. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
21
|
Pandey KK, Tiwari P, Patidar P. Bonding analysis of the neutral electrophilic phosphinidene complexes of vanadium and niobium [(η5-C5H5)(CO)3M(PNR2)] (R = Me, iPr, tBu): A DFT study. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.05.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
22
|
|
23
|
Feldmann KO, Fröhlich R, Weigand JJ. Access to catenated and branched polyphosphorus ligands and coordination complexes via a tri(pyrazolyl)phosphane. Chem Commun (Camb) 2012; 48:4296-8. [DOI: 10.1039/c2cc18030h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
24
|
Averre CE, Coles MP, Crossley IR, Day IJ. The open-chain triphosphanes RMe2SiCH2P(PR′2)2(R = Me, Ph; R′ = SiMe3, Cy, Ph). Dalton Trans 2012; 41:278-84. [DOI: 10.1039/c1dt11499a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
25
|
Grubba R, Wiśniewska A, Baranowska K, Matern E, Pikies J. Syntheses and structures of the first terminal phosphanylphosphido complex of hafnium [Cp2Hf(Cl){η1-(Me3Si)P–P(NEt2)2}] and the first zirconocene-phosphanylphosphinidene dimer [Cp2Zr{μ2-P–P(NEt2)2}2ZrCp2]. Dalton Trans 2011; 40:2017-24. [DOI: 10.1039/c0dt01040e] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
26
|
|
27
|
Waterman R, Tilley TD. Terminal hafnium phosphinidene complexes and phosphinidene ligand exchange. Chem Sci 2011. [DOI: 10.1039/c1sc00119a] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
28
|
Aktaş H, Slootweg J, Lammertsma K. Nucleophilic Phosphinidene Complexes: Access and Applicability. Angew Chem Int Ed Engl 2010; 49:2102-13. [DOI: 10.1002/anie.200905689] [Citation(s) in RCA: 184] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
29
|
Aktaş H, Slootweg J, Lammertsma K. Nucleophile Phosphinidenkomplexe: Synthese und Anwendungen. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200905689] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
30
|
Wicker BF, Scott J, Andino JG, Gao X, Park H, Pink M, Mindiola DJ. Phosphinidene Complexes of Scandium: Powerful PAr Group-Transfer Vehicles to Organic and Inorganic Substrates. J Am Chem Soc 2010; 132:3691-3. [DOI: 10.1021/ja100214e] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Benjamin F. Wicker
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Jennifer Scott
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - José G. Andino
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Xinfeng Gao
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Hyunsoo Park
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Maren Pink
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| | - Daniel J. Mindiola
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405
| |
Collapse
|
31
|
Kilgore UJ, Fan H, Pink M, Urnezius E, Protasiewicz JD, Mindiola DJ. Phosphinidene group-transfer with a phospha-Wittig reagent: a new entry to transition metal phosphorus multiple bonds. Chem Commun (Camb) 2009:4521-3. [PMID: 19617970 DOI: 10.1039/b910410k] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The phosphanylidene-sigma(4)-phosphorane reagents Me(3)P[double bond, length as m-dash]PAr (Ar = 2,4,6-(t)Bu(3)C(6)H(2) and 2,6-Mes(2)C(6)H(3)) are good delivery vehicles of the terminal phosphinidene moiety, PAr, to early-transition metals composed of zirconium and vanadium.
Collapse
Affiliation(s)
- Uriah J Kilgore
- Department of Chemistry and the Molecular Structure Center, Indiana University Bloomington, IN 47405, USA
| | | | | | | | | | | |
Collapse
|
32
|
Breunig HJ, Lork E, Moldovan O, Raţ CI, Rosenthal U, Silvestru C. Polynuclear titanocene complexes with antimony ligands: [(Cp2Ti)2(SbR2)2] (R = Et), [(Cp2Ti)3(SbR)3Sb] [R = 2-(Me2NCH2)C6H4] and [(Cp2Ti)5(SbR)2Sb7] (R = Me3SiCH2). Dalton Trans 2009:5065-7. [DOI: 10.1039/b904846d] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
33
|
Breunig H, Lork E, Moldovan O, Raţ C. Syntheses of a stable tristibine and of related antimony compounds with the 2,6-dimesitylphenyl (Dmp) substituent. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2008.04.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
34
|
Cui P, Chen Y, Xu X, Sun J. An unprecedented lanthanide phosphinidene halide: synthesis, structure and reactivity. Chem Commun (Camb) 2008:5547-9. [DOI: 10.1039/b813075b] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
35
|
Zhao G, Basuli F, Kilgore UJ, Fan H, Aneetha H, Huffman JC, Wu G, Mindiola DJ. Neutral and zwitterionic low-coordinate titanium complexes bearing the terminal phosphinidene functionality. Structural, spectroscopic, theoretical, and catalytic studies addressing the Ti-P multiple bond. J Am Chem Soc 2007; 128:13575-85. [PMID: 17031972 DOI: 10.1021/ja064853o] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Alpha-hydrogen abstraction and alpha-hydrogen migration reactions yield novel titanium(IV) complexes bearing terminal phosphinidene ligands. Via an alpha-H migration reaction, the phosphinidene ((tBu)nacnac)Ti=P[Trip](CH(2)(tBu) ((tBu)nacnac(-) = [Ar]NC((t)Bu)CHC((t)Bu)N[Ar], Ar = 2,6-(CHMe2)(2C6H3, Trip = 2,4,6-(i)Pr3C6H2) was prepared by the addition of the primary phosphide LiPH[Trip] to the nucleophilic alkylidene triflato complex ((tBu)nacnac)Ti=CH(t)Bu(OTf), while alpha-H abstraction was promoted by the addition of LiPH[Trip] to the dimethyl triflato precursor ((tBu)nacnac)Ti(CH)(2)(OTf) to afford ((tBu)nacnac)Ti=P[Trip](CH3). Treatment of ((tBu)nacnac)Ti=P[Trip](CH3) with B(C6F5)(3) induces methide abstraction concurrent with formation of the first titanium(IV) phosphinidene zwitterion complex ((tBu)nacnac)Ti=P[Trip]{CH3B(C6F5)(3)}. Complex ((tBu)nacnac)Ti=P[Trip]{CH3B(C6F5)(3)} [2 + 2] cycloadds readily PhCCPh to afford the phosphametallacyclobutene [((tBu)nacnac)Ti(P[Trip]PhCCPh)][CH3B(C6F5)(3)]. These titanium(IV) phosphinidene complexes possess the shortest Ti=P bonds reported, have linear phosphinidene groups, and reveal significantly upfielded solution 31P NMR spectroscopic resonances for the phosphinidene phosphorus. Solid state 31P NMR spectroscopic data also corroborate with all three complexes possessing considerably shielded chemical shifts for the linear and terminal phosphinidene functionality. In addition, high-level DFT studies on the phosphinidenes suggest the terminal phosphinidene linkage to be stabilized via a pseudo Ti[triple bond]P bond. Linearity about the Ti-P-C(ipso) linkage is highly dependent on the sterically encumbering substituents protecting the phosphinidene. Complex ((tBu)nacnac)Ti=P[Trip]{CH3B(C6F5))(3)} can catalyze the hydrophosphination of PhCCPh with H(2)PPh to produce the secondary vinylphosphine HP[Ph]PhC=CHPh. In addition, we demonstrate that this zwitterion is a powerful phospha-Staudinger reagent and can therefore act as a carboamination precatalyst of diphenylacetylene with aldimines.
Collapse
Affiliation(s)
- Guangyu Zhao
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, IN 47405, USA
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Waterman R. Selective Dehydrocoupling of Phosphines by Triamidoamine Zirconium Catalysts. Organometallics 2007. [DOI: 10.1021/om070189o] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rory Waterman
- Department of Chemistry, University of Vermont, Burlington, Vermont 05405-0125
| |
Collapse
|
37
|
Sterenberg BT, Senturk OS, Udachin KA, Carty AJ. Reactivity of Terminal, Electrophilic Phosphinidene Complexes of Molybdenum and Tungsten. Nucleophilic Addition at Phosphorus and P−P Bond Forming Reactions with Phosphines and Diphosphines. Organometallics 2007. [DOI: 10.1021/om060685x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Brian T. Sterenberg
- Steacie Institute for Molecular Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6, and Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, Canada S4S 0A2
| | - Ozan Sanli Senturk
- Steacie Institute for Molecular Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6, and Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, Canada S4S 0A2
| | - Konstantin A. Udachin
- Steacie Institute for Molecular Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6, and Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, Canada S4S 0A2
| | - Arthur J. Carty
- Steacie Institute for Molecular Sciences, National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6, and Department of Chemistry and Biochemistry, University of Regina, 3737 Wascana Parkway, Regina, Saskatchewan, Canada S4S 0A2
| |
Collapse
|
38
|
Waterman R, Tilley TD. Terminal stibinidene ligands. Generation of CpCp*HfSb(dmp) and trapping reactions with PMe3and 2-butyne. Chem Commun (Camb) 2006:4030-2. [PMID: 17003889 DOI: 10.1039/b609773a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treating CpCp*HfMe(OTf) (1) with LiSbH(dmp) results in formation of CpCp*HfMe(SbHdmp), which undergoes alpha-abstraction to liberate methane and generate CpCp*Hf=Sb(dmp), which is thermally unstable but can be trapped with PMe(3) or 2-butyne to give CpCp*Hf(PMe(3))=Sb(dmp) (2) and CpCp*Hf[eta(2)-Sb,C:Sb(dmp)C(Me)=C(Me)] (3), respectively.
Collapse
Affiliation(s)
- Rory Waterman
- Department of Chemistry, University of California, Berkeley, California 94720-1460, USA
| | | |
Collapse
|
39
|
Nagahora N, Sasamori T, Takeda N, Tokitoh N. Synthesis and Structure of a Stable 1,3-Dihydrotriphosphane and Its Thermal Decomposition Leading to the Formation of the Corresponding Phosphine and Diphosphene. Organometallics 2005. [DOI: 10.1021/om0501069] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noriyoshi Nagahora
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takahiro Sasamori
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Nobuhiro Takeda
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| |
Collapse
|
40
|
Bailey BC, Huffman JC, Mindiola DJ, Weng W, Ozerov OV. Remarkably Stable Titanium Complexes Containing Terminal Alkylidene, Phosphinidene, and Imide Functionalities. Organometallics 2005. [DOI: 10.1021/om0490583] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brad C. Bailey
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, and Department of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454
| | - John C. Huffman
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, and Department of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454
| | - Daniel J. Mindiola
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, and Department of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454
| | - Wei Weng
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, and Department of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454
| | - Oleg V. Ozerov
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, and Department of Chemistry, Brandeis University, MS015, 415 South Street, Waltham, Massachusetts 02454
| |
Collapse
|
41
|
Pikies J, Baum E, Matern E, Chojnacki J, Grubba R, Robaszkiewicz A. A new synthetic entry to phosphinophosphinidene complexes. Synthesis and structural characterisation of the first side-on bonded and the first terminally bonded phosphinophosphinidene zirconium complexes [mu-(1,2:2-eta-tBu2P=P)[Zr(Cl)Cp2]2] and [[Zr(PPhMe2)Cp2](eta1)-P-PtBu2)]. Chem Commun (Camb) 2004:2478-9. [PMID: 15514824 DOI: 10.1039/b409673h] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of lithiated diphosphanes with transition metal chlorides constitute a new general entry to phosphinophosphinidene complexes: the reaction of Cp2ZrCl2(Cp = C5H5) with tBu2P-P(SiMe3)Li (molar ratio approximately 1:1) yields [mu-(1,2:2-eta-tBu2P=P)[Zr(Cl)Cp2]2]; the reaction of Cp2ZrCl2 with tBu2P-P(SiMe3)Li (molar ratio approximately 1:2) and an excess of PPhMe2 in DME yields the first terminally bonded phosphinophosphinidene complex, [[Zr(PPhMe2)Cp2](eta1-P-PtBu2)].
Collapse
Affiliation(s)
- Jerzy Pikies
- Chemical Faculty, Gdańsk University of Technology, ul. Narutowicza 11/12, 80-952, Gdańsk, Poland.
| | | | | | | | | | | |
Collapse
|
42
|
Basuli F, Bailey BC, Huffman JC, Baik MH, Mindiola DJ. Terminal and four-coordinate vanadium(IV) phosphinidene complexes. A pseudo Jahn-Teller effect of second order stabilizing the V-P multiple bond. J Am Chem Soc 2004; 126:1924-5. [PMID: 14971911 DOI: 10.1021/ja0392216] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Treatment of the four-coordinate vanadium neopentylidene (Nacnac)V=CHtBu(I) (Nacnac- = [Ar]NC(Me)CHC(Me)N[Ar], Ar = 2,6-iPr2C6H3) with a bulky primary lithium phosphide LiPHR (R = 2,4,6-iPr3C6H2, 2,4,6-tBu3C6H2) leads to alpha-hydrogen migration concomitant with the formation of a four-coordinate vanadium complex containing a terminal phosphinidene functionality (Nacnac)V=PR(CH2tBu). The crystal structures for the vanadium phosphinidene complexes prepared herein were determined by single-crystal X-ray diffraction methods. Solution EPR and magnetic measurements of the vanadium phosphinidenes are also in accordance with such systems containing a V(IV) metal center, and DFT calculations indicate the V=P bond to be stabilized through a pseudo Jahn-Teller effect of second order.
Collapse
Affiliation(s)
- Falguni Basuli
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, USA
| | | | | | | | | |
Collapse
|
43
|
Waterman R, Hillhouse GL. Formation of Phosphirenes by Phosphinidene Group-Transfer Reactions from (dtbpe)NiP(dmp) to Alkynes. Organometallics 2003. [DOI: 10.1021/om0341754] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rory Waterman
- Searle Chemistry Laboratory, Department of Chemistry, The University of Chicago, Chicago, Illinois 60637
| | - Gregory L. Hillhouse
- Searle Chemistry Laboratory, Department of Chemistry, The University of Chicago, Chicago, Illinois 60637
| |
Collapse
|
44
|
Basuli F, Tomaszewski J, Huffman JC, Mindiola DJ. Four-coordinate phosphinidene complexes of titanium prepared by alpha-H-migration: phospha-Staudinger and phosphaalkene-insertion reactions. J Am Chem Soc 2003; 125:10170-1. [PMID: 12926929 DOI: 10.1021/ja036559r] [Citation(s) in RCA: 92] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
alpha-Hydrogen migration in the phosphide (Nacnac)Ti=CHtBu(PHR) (Nacnac- = [Ar]NC(Me)CHC(Me)N[Ar], Ar = 2,6-iPr2C6H3, R = C6H11, 2,4,6-iPr3C6H2, 2,4,6-tBuC6H2), prepared from salt metathesis of (Nacnac)Ti=CHtBu(PHR) with LiPHR, generates terminal and four-coordinate phosphinidene complexes (Nacnac)Ti=PR(CH2tBu), one of which was structurally characterized (R = 2,4,6-tBu3C6H2). Phosphinidene intermediate (Nacnac)Ti=PR(CH2tBu) (R = C6H11, 2,4,6-iPr3C6H2) transform to ([Ar]NC(Me)CHC(Me)P[R][CH2tBu])Ti=NAr(OEt2) through "phospha-Staudinger" and subsequent phosphaalkene-insertion reactions.
Collapse
Affiliation(s)
- Falguni Basuli
- Department of Chemistry and Molecular Structure Center, Indiana University, Bloomington, Indiana 47405, USA
| | | | | | | |
Collapse
|
45
|
Breunig HJ, Ghesner I, Ghesner ME, Lork E. Syntheses and coordination chemistry of di-, tri-, and tetrastibanes, R2Sb(SbR′)nSbR2 (n=0, 1, 2). J Organomet Chem 2003. [DOI: 10.1016/s0022-328x(03)00320-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
46
|
Basuli F, Watson LA, Huffman JC, Mindiola DJ. Phosphaazaallene and phosphinylimide complexes stemming from a terminal and four-coordinate titanium phosphinidene. Dalton Trans 2003. [DOI: 10.1039/b311748k] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
47
|
Melenkivitz R, Mindiola DJ, Hillhouse GL. Monomeric phosphido and phosphinidene complexes of nickel. J Am Chem Soc 2002; 124:3846-7. [PMID: 11942818 DOI: 10.1021/ja017787t] [Citation(s) in RCA: 136] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An unusual family of three-coordinate, d(8) and d(9) nickel phosphido and phosphinidene complexes containing the chelating 1,2-bis(di-tert-butylphosphino)ethane (dtbpe) ligand and a terminal PR(2)(-) or PR(2-) ligand have been prepared. The complexes (dtbpe)Ni[P(t-Bu)(2)] (2), [(dtbpe)Ni[=P(t-Bu)(2)](+)][PF(6)(-)] (3), [(dtbpe)Ni[=P(H)(dmp)](+)][PF(6)(-)] (5), and (dtbpe)Ni[=P(dmp)] (6) have been structurally characterized by single-crystal X-ray diffraction methods. The three-coordinate d(8) complexes exhibit Ni-P bond lengths and ligand geometries that indicate they participate in symmetry-allowed ligand-to-metal pi bonding involving phosphorus p-electrons and a metal-orbital of pi symmetry that lies in the Ni coordination plane. Compound 6 is a rare example of a late-transition-metal terminal phosphinidene complex.
Collapse
Affiliation(s)
- Rory Melenkivitz
- Searle Chemistry Laboratory, Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, USA
| | | | | |
Collapse
|