1
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Spillebout F, Stoyanov SR, Zelyak O, Stryker JM, Kovalenko A. Computational Investigation of the Metal and Ligand Substitution Effects on the Structure and Electronic States of the Phosphoranimide Tetramer Complexes of Cu(I), Ni(I), Co(I), and Fe(I). Inorg Chem 2022; 61:1471-1485. [PMID: 34994544 DOI: 10.1021/acs.inorgchem.1c03172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The structurally unique saddle-shaped paramagnetic tetrametallic clusters of Co(I) and Ni(I) with phosphoranimide ligands have been synthesized and proposed as catalyst precursors. The analogous Cu(I) nanocluster is planar and diamagnetic. These notable variations in geometry and ground electronic states indicate that the effect of metal and ligand substituents on the structure and electronic properties of these complexes requires investigation. We present a computational study of a series of these novel homoleptic complexes containing Co(I), Ni(I), and Cu(I) as well as Fe(I) coordinated to phosphoranimides with electron-donating and withdrawing substituents, conducted at the relativistic density functional theory level using ZORA-PBE/TZP. The optimized structures of the saddle-shaped Co(I) and Ni(I) and planar Cu(I) tetramers with linear N-M-N coordination are validated with respect to X-ray diffraction determinations. The ground-state analysis indicates that Cu(I) complexes are diamagnetic, whereas Ni(I) and Co(I) complexes are in high-spin states, in agreement with magnetic susceptibility measurements. The computational results show that Fe(I) complexes are saddle shaped and high spin. The Co(I) complex is stabilized by a metal macrocycle distortion from square to diamond, as elucidated from its Walsh diagram. The effects of metals and ligand substituents on the ground electronic state, metal center coordination environment, and energy of the complexes are investigated. The bulky tertiary butyl substituent causes the largest saddle-shape distortion of the tetramer marcocycle, which partially offsets its electron-donating effect. Macrocycle distortions with N-M-N site angles ranging from obtuse to alternating obtuse reflex are correlated with the increasing number of unpaired electrons. The phenyl-substituted complexes are expected to have the highest reactivity toward electrophiles. Understanding the interplay between structural and electronic parameters is intended to guide the development of synthetic cooperative systems for multielectron redox reactions, models of biological systems, and molecular magnets.
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Affiliation(s)
- Faustine Spillebout
- Nanotechnology Research Centre, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada.,Department of Mechanical Engineering, University of Alberta, 10-203 Donadeo Innovation Centre for Engineering, Edmonton, Alberta T6G 1H9, Canada
| | - Stanislav R Stoyanov
- Nanotechnology Research Centre, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada.,Department of Mechanical Engineering, University of Alberta, 10-203 Donadeo Innovation Centre for Engineering, Edmonton, Alberta T6G 1H9, Canada.,Natural Resources Canada, CanmetENERGY Devon, 1 Oil Patch Drive, Devon, Alberta T9G 1A8, Canada
| | - Oleksandr Zelyak
- Nanotechnology Research Centre, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada.,Department of Mechanical Engineering, University of Alberta, 10-203 Donadeo Innovation Centre for Engineering, Edmonton, Alberta T6G 1H9, Canada
| | - Jeffrey M Stryker
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Andriy Kovalenko
- Nanotechnology Research Centre, National Research Council of Canada, 11421 Saskatchewan Drive, Edmonton, Alberta T6G 2M9, Canada.,Department of Mechanical Engineering, University of Alberta, 10-203 Donadeo Innovation Centre for Engineering, Edmonton, Alberta T6G 1H9, Canada.,Department of Biological Sciences, University of Alberta, CW 405, Biological Sciences Building, Edmonton, Alberta T6G 2E9, Canada
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2
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García-Garrido SE, Presa Soto A, García-Álvarez J. Iminophosphoranes (R3P NR′): From terminal to multidentate ligands in organometallic chemistry. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2022. [DOI: 10.1016/bs.adomc.2022.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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3
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Tong X, Cherif M, Zhang G, Zhan X, Ma J, Almesrati A, Vidal F, Song Y, Claverie JP, Sun S. N, P-Codoped Graphene Dots Supported on N-Doped 3D Graphene as Metal-Free Catalysts for Oxygen Reduction. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30512-30523. [PMID: 34170669 DOI: 10.1021/acsami.1c03141] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nitrogen and phosphorus-codoped graphene dots supported on nitrogen-doped three-dimensional graphene (N, P-GDs/N-3DG) have been synthesized by a facile freeze-annealing process. On the surface of the 3D interconnected porous structure, the N, P-GDs are uniformly dispersed. The as-prepared N, P-GDs/N-3DG material served as a metal-free catalyst for oxygen reduction reaction (ORR) in an alkaline medium and evaluated by a rotating ring-disk electrode. The N, P-GDs/N-3DG catalyst exhibits excellent ORR activity, which is comparable to that of the commercial Pt/C catalyst. Furthermore, it exhibits a higher tolerance to methanol and better stability than the Pt/C. This enhanced electrochemical catalytic performance can be ascribed to the presence of abundant functional groups and edge defects. This study indicates that P-N bonded structures play a vital role as the active sites in ORR.
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Affiliation(s)
- Xin Tong
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, Varennes, Quebec J3X 1S2, Canada
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 55000, China
| | - Mohamed Cherif
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, Varennes, Quebec J3X 1S2, Canada
| | - Gaixia Zhang
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, Varennes, Quebec J3X 1S2, Canada
| | - Xinxing Zhan
- School of Chemistry and Material Science, Guizhou Normal University, Guiyang 55000, China
| | - Jugang Ma
- School of Mathematics and Physics, University of Science & Technology Beijing, Beijing 10008, China
| | - Ali Almesrati
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, Varennes, Quebec J3X 1S2, Canada
| | - François Vidal
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, Varennes, Quebec J3X 1S2, Canada
| | - Yujun Song
- School of Mathematics and Physics, University of Science & Technology Beijing, Beijing 10008, China
| | - Jerome P Claverie
- Department of Chemistry, Université de Sherbrooke, Sherbrooke, Quebec J1K 2R1, Canada
| | - Shuhui Sun
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications, Varennes, Quebec J3X 1S2, Canada
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4
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Jha VK, Das S, Subramaniyan V, Guchhait T, Dakua KK, Mishra S, Mani G. Synthesis, structural characterization, and bonding analysis of two-coordinate copper(I) and silver(I) complexes of pyrrole-based bis(phosphinimine): new metal-pyrrole ring π-interactions. Dalton Trans 2021; 50:8036-8044. [PMID: 34013307 DOI: 10.1039/d1dt01091c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The reaction between 2,5-bis(diphenylphosphinomethyl)pyrrole and Me3SiN3 gave the new pyrrole-based bis(phosphinimine) L1H in an excellent yield. L1H reacts with [CuCl(COD)]2, AgBF4, or AgOTf to give the corresponding two-coordinate mononuclear ionic complex formulated as [M{(L1H)-κ2N,N}]+[X]- where M = Cu and Ag; X = [CuCl2], BF4 or OTf. Their single crystal X-ray diffraction studies confirmed the two-coordinate geometry formed by the chelate bonding mode of L1H. These 10-membered metalacycles exhibit planar chirality and were also characterized by spectroscopic methods. In addition, in all three structures, there exists a hitherto unknown π-interaction between the pyrrole ring atoms and metal, represented as η2-(Cα-N) in the copper(i) complex, and η3-(Cα-N-Cα') in the silver(i) complexes. These weak interactions were supported by DFT calculations in terms of their electron densities, non-covalent interaction plots and the decrease in the aromaticity of the pyrrole ring.
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Affiliation(s)
- Vikesh Kumar Jha
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721 302, India.
| | - Sanghamitra Das
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721 302, India.
| | - Vasudevan Subramaniyan
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721 302, India.
| | - Tapas Guchhait
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721 302, India.
| | - Kishan Kumar Dakua
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721 302, India.
| | - Sabyashachi Mishra
- Department of Chemistry and Centre for Computational and Data Sciences, Indian Institute of Technology Kharagpur, Kharagpur-721 302, India.
| | - Ganesan Mani
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721 302, India.
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Affiliation(s)
- Christin Bednarek
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Ilona Wehl
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Nicole Jung
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
- Institute of Biological and Chemical Systems—Functional Molecular Systems, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Ute Schepers
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
- Institute of Biological and Chemical Systems—Functional Molecular Systems, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
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Chang HC, Chang YF, Lin SH, Lin TH, Lee WZ. Ambient Stable Cyanomethylcopper(III) Complex: a Strong Cu-C sp3 Bond Supported by a PS3-Tripodal Chelator. Inorg Chem 2019; 58:22-26. [PMID: 30991473 DOI: 10.1021/acs.inorgchem.8b02511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
An organocuprate(III) complex, [Cu(TMSPS3)(CH2CN)]- (2), was identified along with a sequential derivative, [Cu(TMSPS3)(CN)]- (3), and an intermediate, [Cu(TMSPS3)(HN═PPh3)] (4), formed in a relative transformation. Apical ligands among these complexes all strongly associate with a robust trigonal copper(III) platform. The nature of the ligand binding was spectroscopically and computationally investigated through a series of copper(III) complexes. The bonding along the principal C3 axis is adaptable, and σ interaction dominates the axial ligand coordination, where the cyanomethyl group exhibits the strongest bonding. Complex 2 is a scarce example of a thermostable aliphatic organocuprate(III) compound, which sheds some light on the organocopper(III) chemistry widely involved in many copper-mediated catalyses.
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Affiliation(s)
- Hao-Ching Chang
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Ya-Fan Chang
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Sheng-Hsiang Lin
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Tsung-Han Lin
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
| | - Way-Zen Lee
- Department of Chemistry , National Taiwan Normal University , Taipei 11677 , Taiwan
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7
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Rodríguez-Rey JL, Esteban-Gómez D, Platas-Iglesias C, Sousa-Pedrares A. Electronic versus steric control in palladium complexes of carboranyl phosphine-iminophosphorane ligands. Dalton Trans 2019; 48:486-503. [PMID: 30520489 DOI: 10.1039/c8dt04006k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of carboranyl phosphine-iminophosphorane ligands was prepared and characterized. The new ligands present a carboranyl group directly attached to the iminophosphorane nitrogen atom through a cage carbon atom (C-carboranyl derivatives L1-L3) or through the B3 boron atom (B-carboranyl derivatives L4 and L5), and the phosphine group on a side chain derived from the diphosphine dppm, i.e. with a two-atom spacer between the P and N donor atoms. The non-carboranyl analogue L6, with a biphenyl group on the nitrogen atom, was also synthesized for comparison. These potential (P, N) ligands were used to obtain palladium complexes (Pd1-Pd6) and, thus, study how the different inductive effect of the carboranyl substituents can modify the coordinating ability of the nitrogen atom. The structural analysis of the complexes revealed two different coordination modes for the ligands: the (P, N) chelate coordination and the unexpected P-terminal coordination, which is not observed for non-carboranyl phosphine-iminophosphoranes. These unexpected structural differences led us to perform DFT calculations on the ligands and metal complexes. The calculations show that the final coordination modes depend on the balance between the electronic and steric properties of the particular carboranyl group.
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Affiliation(s)
- José Luis Rodríguez-Rey
- Departamento de Química Inorgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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Crujeiras P, Rodríguez-Rey JL, Sousa-Pedrares A. Coordinating Ability of the Iminophosphorane Group in ortho
-Carborane Derivatives. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pablo Crujeiras
- Departamento de Química Inorgánica; Facultad de Química; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - José Luis Rodríguez-Rey
- Departamento de Química Inorgánica; Facultad de Química; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
| | - Antonio Sousa-Pedrares
- Departamento de Química Inorgánica; Facultad de Química; Universidade de Santiago de Compostela; 15782 Santiago de Compostela Spain
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9
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Elmer LM, Kehr G, Daniliuc CG, Siedow M, Eckert H, Tesch M, Studer A, Williams K, Warren TH, Erker G. The Chemistry of a Non-Interacting Vicinal Frustrated Phosphane/Borane Lewis Pair. Chemistry 2016; 23:6056-6068. [PMID: 27925311 DOI: 10.1002/chem.201603954] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 09/23/2016] [Indexed: 12/14/2022]
Abstract
The dimesitylphosphinocyclopentene/HB(C6 F5 )2 -derived vicinal trans-1,2-P/B frustrated Lewis pair (FLP) 4 shows no direct phosphane-borane interaction. Toward some reagents it behaves similar to an intermolecular FLP; it cleaves dihydrogen, deprotonates terminal alkynes, and adds to organic carbonyl compounds including CO2 . It shows typical intramolecular FLP reaction modes (cooperative 1,1-additions) to mesityl azide, to carbon monoxide, and to NO. The latter reaction yields a persistent P/B FLPNO nitroxide radical, which undergoes H-atom abstraction reactions. The FLP 4 serves as a template for the CO reduction by [HB(C6 F5 )2 ] to generate a FLP-η2 -formylborane. The formylborane moiety is removed from the FLP template by reaction with pyridine to yield a genuine pyridine stabilized formylborane that undergoes characteristic borane carbaldehyde reactions (Wittig olefination, imine formation). Most new products were characterized by X-ray diffraction.
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Affiliation(s)
- Lisa-Maria Elmer
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Gerald Kehr
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Melanie Siedow
- Institut für Physikalische Chemie, Universutät Münster, Corrensstraße 28/30, 48149, Münster, Germany
| | - Hellmut Eckert
- Institut für Physikalische Chemie, Universutät Münster, Corrensstraße 28/30, 48149, Münster, Germany.,Instituto de Física Sao Carlos, Universidade de Sao Paulo, CP 369, 13560-970, Sao Carlos, SP, Brasil
| | - Matthias Tesch
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Kamille Williams
- Georgetown University, Department of Chemistry, Box 571227, Washington DC, 20057-1227, USA
| | - Timothy H Warren
- Georgetown University, Department of Chemistry, Box 571227, Washington DC, 20057-1227, USA
| | - Gerhard Erker
- Organisch-Chemisches Institut, Universität Münster, Corrensstraße 40, 48149, Münster, Germany
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García-Álvarez J, García-Garrido SE, Cadierno V. Iminophosphorane–phosphines: Versatile ligands for homogeneous catalysis. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.07.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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11
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Monnereau L, Sémeril D, Matt D. Calixarene-Derived Mono-Iminophosphoranes: Highly Efficient Ligands for Palladium- and Nickel-Catalysed Cross-Coupling. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300091] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Schilling CI, Jung N, Biskup M, Schepers U, Bräse S. Bioconjugation via azide–Staudinger ligation: an overview. Chem Soc Rev 2011; 40:4840-71. [DOI: 10.1039/c0cs00123f] [Citation(s) in RCA: 234] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Sgro MJ, Stephan DW. Non-innocent reactivity of bis-phosphinimine pincer ligands in palladium complexes. Dalton Trans 2011; 40:2419-21. [DOI: 10.1039/c0dt01623c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Cariou R, Dahcheh F, Graham TW, Stephan DW. Mononuclear and dinuclear palladium and nickel complexes of phosphinimine-based tridentate ligands. Dalton Trans 2011; 40:4918-25. [DOI: 10.1039/c1dt10131e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Berthon C, Boubals N, Charushnikova IA, Collison D, Cornet SM, Den Auwer C, Gaunt AJ, Kaltsoyannis N, May I, Petit S, Redmond MP, Reilly SD, Scott BL. The Reaction Chemistry of Plutonyl(VI) Chloride Complexes with Triphenyl Phosphineoxide and Triphenyl Phosphinimine. Inorg Chem 2010; 49:9554-62. [DOI: 10.1021/ic101251a] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Claude Berthon
- CEA, Nuclear Energy Division, RadioChemistry and Process Department, F-30207 Bagnols sur Cèze, France
| | - Nathalie Boubals
- CEA, Nuclear Energy Division, RadioChemistry and Process Department, F-30207 Bagnols sur Cèze, France
| | - Iraida A. Charushnikova
- CEA, Nuclear Energy Division, RadioChemistry and Process Department, F-30207 Bagnols sur Cèze, France
| | - David Collison
- School of Chemistry, The University of Manchester, Manchester M13 9PL, U.K
| | - Stéphanie M. Cornet
- Centre for Radiochemistry Research, School of Chemistry, The University of Manchester, Manchester M13 9PL, U.K
| | - Christophe Den Auwer
- CEA, Nuclear Energy Division, RadioChemistry and Process Department, F-30207 Bagnols sur Cèze, France
| | - Andrew J. Gaunt
- Chemistry Division, Inorganic, Isotope and Actinide Chemistry (C-IIAC), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, New Mexico 87545
| | - Nikolas Kaltsoyannis
- Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K
| | - Iain May
- Chemistry Division, Inorganic, Isotope and Actinide Chemistry (C-IIAC), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, New Mexico 87545
| | - Sebastien Petit
- Centre for Radiochemistry Research, School of Chemistry, The University of Manchester, Manchester M13 9PL, U.K
| | - Michael P. Redmond
- Centre for Radiochemistry Research, School of Chemistry, The University of Manchester, Manchester M13 9PL, U.K
| | - Sean D. Reilly
- Chemistry Division, Inorganic, Isotope and Actinide Chemistry (C-IIAC), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, New Mexico 87545
| | - Brian L. Scott
- Materials and Physics Applications − Materials Chemistry (MPA-MC), Los Alamos National Laboratory, Mail Stop J-514, Los Alamos, New Mexico 87545
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Vaultier M, Lambert PH, Carrié R. Use of the Intramolecular Aza-Wittig Reaction for the Access to 2-Cyclopropyl Cyclic Imines Which are Key Intermediates in the Synthesis of Bicyclic Alcaloids. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19850940703] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Yavari I, Zabarjad-Shiraz N, Bijanzadeh HR. SYNTHESIS OF SULFUR-CONTAINING ARYLIMINOPHOSPHORANES. PHOSPHORUS SULFUR 2010. [DOI: 10.1080/10426500490463556] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Issa Yavari
- a University of Tarbiat Modarres , Tehran, Iran
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18
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The unusual stability of [NpO2Cl4]2−: Synthesis and characterisation of [NpO2(DPPMO2)2Cl]2[NpO2Cl4] and [Ph3PNH2]2[NpO2Cl4]. CR CHIM 2010. [DOI: 10.1016/j.crci.2010.04.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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20
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Tsai SC, Fu YS, Liao JH, Yu S. Versatile and Efficient Synthesis of a New Class of Aza-Based Phosphinic Amide Ligandsvia Unusual PC Cleavage. Helv Chim Acta 2006. [DOI: 10.1002/hlca.200690270] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Katti KV, Cavell RG. Transition Metal Chemistry of a Novel and Versatile Heterodifunctional Phosphorus-Nitrogen Ligand System. COMMENT INORG CHEM 2006. [DOI: 10.1080/02603599008050858] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Imhoff P, Asselt RV, Elsevier CJ, Vrieze K, Goubitz K, Van Malssen KF, Stam CH. SYNTHESIS, STRUCTURE AND REACTIVITY OF BIS(N-ARYL-IMINOPHOSPHORANYL)METHANES. X-RAY CRYSTAL STRUCTURES OF (4-CH3-C6H4-N˭PPh2)2CH2 AND (4-NO2-C6H4-N˭PPh2)2CH2. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426509008037996] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- P. Imhoff
- a Anorganisch Chemisch Laboratorium , Universiteit van Amsterdam , Nieuwe Achtergracht 166, 1018WV , Amsterdam , The Netherlands
| | - R. Van Asselt
- a Anorganisch Chemisch Laboratorium , Universiteit van Amsterdam , Nieuwe Achtergracht 166, 1018WV , Amsterdam , The Netherlands
| | - C. J. Elsevier
- a Anorganisch Chemisch Laboratorium , Universiteit van Amsterdam , Nieuwe Achtergracht 166, 1018WV , Amsterdam , The Netherlands
| | - K. Vrieze
- a Anorganisch Chemisch Laboratorium , Universiteit van Amsterdam , Nieuwe Achtergracht 166, 1018WV , Amsterdam , The Netherlands
| | - K. Goubitz
- b Laboratorium voor Kristallografie , Universiteit van Amsterdam , Nieuwe Achtergracht 166, 1018WV , Amsterdam , The Netherlands
| | - K. F. Van Malssen
- b Laboratorium voor Kristallografie , Universiteit van Amsterdam , Nieuwe Achtergracht 166, 1018WV , Amsterdam , The Netherlands
| | - C. H. Stam
- b Laboratorium voor Kristallografie , Universiteit van Amsterdam , Nieuwe Achtergracht 166, 1018WV , Amsterdam , The Netherlands
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Cadierno V, Díez J, García-Alvarez J, Gimeno J, Nebra N, Rubio-García J. Synthesis and reactivity studies of palladium(ii) complexes containing the N-phosphorylated iminophosphorane-phosphine ligands Ph2PCH2P{NP(O)(OR)2}Ph2(R = Et, Ph): application to the catalytic synthesis of 2,3-dimethylfuran. Dalton Trans 2006:5593-604. [PMID: 17225896 DOI: 10.1039/b609359k] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of [PdCl2(COD)] with 1 equiv. of the iminophosphorane-phosphine ligands Ph2PCH2P{=NP(=O)(OR)2}Ph2 (R=Et, Ph) lead to the novel Pd(II) derivatives cis-[PdCl2(kappa2-(P,N)-Ph2PCH2P{=NP(=O)(OR)2}Ph2)] (R=Et, Ph). Pd-N bond cleavage readily takes place upon treatment of these species with a variety of two-electron donor ligands. By this way, complexes cis-[PdCl2(kappa1-(P)-Ph2PCH2P{=NP(=O)(OR)2}Ph2)(L)] (R=Et, L=CNtBu, CN-2,6-C6H3Me2, py, P(OMe)3, P(OEt)3; R=Ph, L=CNtBu, CN-2,6-C6H3Me2, py, P(OMe)3, P(OEt)3) have been synthesized in high yields. The addition of two equivalents of ligands to dichloromethane solutions of [PdCl2(COD)] results in the formation of complexes trans-[PdCl2(kappa1-(P)-Ph2PCH2P{=NP(=O)(OR)2}Ph2)2] (R=Et, Ph), which can be converted into the dicationic species [Pd(Ph2PCH2P{=NP(=O)(OR)2}Ph2)2][SbF6]2 (R=Et, Ph) by treatment with AgSbF6. Complex also reacts with CNtBu to afford trans-[Pd(kappa1(P)-Ph2PCH2P{=NP(=O)(OPh)2}Ph2)2(CNtBu)2][SbF6]2. The structures of and have been determined by single-crystal X-ray diffraction methods. In addition, the ability of these Pd(II) complexes to promote the catalytic cycloisomerization of (Z)-3-methylpent-2-en-4-yn-1-ol into 2,3-dimethylfuran has also been studied.
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Affiliation(s)
- Victorio Cadierno
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica Enrique Moles (Unidad Asociada al CSIC), Facultad de Química, Universidad de Oviedo, E-33071, Oviedo, Spain.
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Wang ZX, Chai ZY, Li YX. Reaction of aryl azides with tris(trimethylsilyl)silyllithium: Synthesis of tmeda or thf adducts of [Li{N(Ar)Si(SiMe3)3}] and 1,4-trimethylsilyl migration from oxygen to nitrogen. J Organomet Chem 2005. [DOI: 10.1016/j.jorganchem.2005.05.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Guidi VV, Jin Z, Busse D, Euler WB, Lucht BL. Bis(phosphine imide)s: easily tunable organic electron donors. J Org Chem 2005; 70:7737-43. [PMID: 16149807 DOI: 10.1021/jo051196u] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[graph: see text] The electrochemical, structural, and spectroscopic properties of bis(phosphine imide)s have been investigated. p-Phenylenebis(phosphine imide)s Ar3PNC6H4NPAr3 (1a-d) have two reversible single-electron oxidations. The first oxidation potentials can be varied from -0.05 to 0.15 V (versus SCE) by modification of the substituents on phosphorus (Ar). Electron-donating substituents lower the oxidation potential, while electron-withdrawing substituents increase the oxidation potential. The difference between the first and second oxidation potential (deltaE, 0.41-0.50) and the electronic coupling (Hab, 1.1 eV) are similar for 1a-d. Computational (DFT) and UV-visible-NIR spectroscopic investigations of 1a-d suggest that the first oxidation leads to a delocalized radical cation 1a*+ while the second oxidation leads to a quinonoidal dicationic state 1a2+. The aromatic linker between phosphine imides has also been modified. Upon oxidation, N,N'-4,4'-biphenylene(bis(triphenyl)phosphine imide) (3) forms radical cationic and a dicationic species similar to 1a-d. While deltaE (0.18 V) and Hab (0.63 eV) are smaller, suggesting weaker electronic communication between the two P=N units in the radical cationic state, the presence of NIR absorptions with vibrational fine structure (768, 861, and 983 nm) supports the formation of delocalized radical cation for 3*+.
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Affiliation(s)
- Vanina V Guidi
- Department of Chemistry, University of Rhode Island, Kingston, Rhode Island 02881, USA
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Cadierno V, Crochet P, Díez J, García-Alvarez J, García-Garrido SE, Gimeno J, García-Granda S, Rodríguez MA. Ruthenium(II) and ruthenium(IV) complexes containing kappa1-P-, kappa2-P,O-, and kappa3-P,N,O-iminophosphorane-phosphine ligands Ph2PCH2P[=NP(=O)(OR)2]Ph2 (R = Et, Ph): synthesis, reactivity, theoretical studies, and catalytic activity in transfer hydrogenation of cyclohexanone. Inorg Chem 2003; 42:3293-307. [PMID: 12739971 DOI: 10.1021/ic020702k] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[(Ru(eta(6)-p-cymene)(mu-Cl)Cl)(2)] and [(Ru(eta(3):eta(3)-C(10)H(16))(mu-Cl)Cl)(2)] react with Ph(2)PCH(2)P[=NP(=O)(OR)(2)]Ph(2) (R = Et (1a), Ph (1b)) affording complexes [Ru(eta(6)-p-cymene)Cl(2)(kappa(1)-P-Ph(2)PCH(2)P[=NP(=O)(OR)(2)]Ph(2))] (R = Et (2a), Ph (2b)) and [Ru(eta(3):eta(3)-C(10)H(16))Cl(2)(kappa(1)-P-Ph(2)PCH(2)P[=NP(=O)(OR)(2)]Ph(2))] (R = Et (6a), Ph (6b)). While treatment of 2a with 1 equiv of AgSbF(6) yields a mixture of [Ru(eta(6)-p-cymene)Cl(kappa(2)-P,O-Ph(2)PCH(2)P[=NP(=O)(OEt)(2)]Ph(2))][SbF(6)] (3a) and [Ru(eta(6)-p-cymene)Cl(kappa(2)-P,N-Ph(2)PCH(2)P[=NP(=O)(OEt)(2)]Ph(2))][SbF(6)] (4a), [Ru(eta(6)-p-cymene)Cl(kappa(2)-P,O-Ph(2)PCH(2)P[=NP(=O)(OPh)(2)]Ph(2))][SbF(6)] (3b) and [Ru(eta(3):eta(3)-C(10)H(16))Cl(kappa(2)-P,O-Ph(2)PCH(2)P[=NP(=O)(OR)(2)]Ph(2))][SbF(6)] (R = Et (7a), Ph (7b)) are selectively formed from 2b and 6a,b. Complexes [Ru(eta(6)-p-cymene)(kappa(3)-P,N,O-Ph(2)PCH(2)P[=NP(=O)(OR)(2)]Ph(2))][SbF(6)](2) (R = Et (5a), Ph (5b)) and [Ru(eta(3):eta(3)-C(10)H(16))(kappa(3)-P,N,O-Ph(2)PCH(2)P[=NP(=O)(OR)(2)]Ph(2))][SbF(6)](2) (R = Et (8a), Ph (8b)) have been prepared using 2 equiv of AgSbF(6). The reactivity of 3-5a,b has been explored allowing the synthesis of [Ru(eta(6)-p-cymene)X(2)(kappa(1)-P-Ph(2)PCH(2)P[=NP(=O)(OR)(2)]Ph(2))] (R = Et, Ph; X = Br, I, N(3), NCO (9-12a,b)). The catalytic activity of 2-8a,b in transfer hydrogenation of cyclohexanone, as well as theoretical calculations on the models [Ru(eta(6)-C(6)H(6))Cl(kappa(2)-P,N-H(2)PCH(2)P[=NP(=O)(OH)(2)]H(2))]+ and [Ru(eta(6)-C(6)H(6))Cl(kappa(2)-P,O-H(2)PCH(2)P[=NP(=O)(OH)(2)]H(2))]+, has been also studied.
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Affiliation(s)
- Victorio Cadierno
- Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica "Enrique Moles" (Unidad Asociada al CSIC), Facultad de Química, Universidad de Oviedo, E-33071 Oviedo, Spain
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Cadierno V, Crochet P, Díez J, García-Álvarez J, García-Garrido SE, García-Granda S, Gimeno J, Rodríguez* MA. Synthesis, reactivity and catalytic activity in transfer hydrogenation of ketones of ruthenium(ii) and ruthenium(iv) complexes containing the novel N-thiophosphorylated iminophosphorane-phosphine ligands Ph2PCH2P{NP(S)(OR)2}Ph2(R = Et, Ph). Dalton Trans 2003. [DOI: 10.1039/b305520e] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Shyu SG, Singh R, Su CJ, Lin KJ. Regiospecific Reaction between Dimetallic Phosphido-Bridged W−W Complexes and Phosphane Imide − Electrophilic Site Switching by Metal−Metal Bond Formation. Eur J Inorg Chem 2002. [DOI: 10.1002/1099-0682(200206)2002:6<1343::aid-ejic1343>3.0.co;2-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Cristau HJ, Taillefer M, Rahier N. Lithium phosphonium azayldiides R3PNLi. Applications in organic synthesis and coordination chemistry. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(01)01430-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Isac-García J, Calvo-Flores F, Hernández-Mateo F, Santoyo-González F. Synthesis of Glycosylamines from Glycosyl Isothiocyanates and Bis(tributyltin) Oxide. European J Org Chem 2001. [DOI: 10.1002/1099-0690(200101)2001:2<383::aid-ejoc383>3.0.co;2-n] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Claridge RP, Millar RW, Sandall JP, Thompson C. Preparation of N-aryl-S,S-diphenylsulfilimines by nucleophilic attack of N-lithio-S,S-diphenylsulfilimine on aromatic compounds. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(99)00550-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Molina P, Pastor A, Vilaplana MJ, Velasco MD, Ramirez de Arellano MC. Structural Characterization and Electrochemical Study of Novel Ferrocene Derivatives Prepared from [(β-Ferrocenylvinyl)imino]phosphorane by Aza Wittig Reactions. Organometallics 1997. [DOI: 10.1021/om9706166] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pedro Molina
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, E-30071 Murcia, Spain
| | - Aurelia Pastor
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, E-30071 Murcia, Spain
| | - M. Jesús Vilaplana
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, E-30071 Murcia, Spain
| | - M. Desamparados Velasco
- Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, E-30071 Murcia, Spain
| | - M. Carmen Ramirez de Arellano
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia, Campus de Espinardo, E-30071 Murcia, Spain
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Molina P, Alajarín M, Arques A, Sánchez-Andrada P, Vidal A, Vinader M. An efficient preparation of macrocycles containing two tetra-coordinate phosphorus atoms. J Organomet Chem 1997. [DOI: 10.1016/s0022-328x(96)06494-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Molina P, Pastor A, Vilaplana MJ, de Arellano MR. An efficient preparation of novel ferrocene derivatives via aza Wittig reaction and X-ray structure of bis(β-ferrocenylvinyl)carbodiimide. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01670-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Avis MW, Elsevier CJ, Veldman N, Kooijman H, Spek AL. Monodentate sigma-N and Bidentate sigma-N,sigma-N' Coordination of 1,1-Bis((N-p-tolylimino)diphenylphosphoranyl)ethane, CHCH(3)(PPh(2)=NC(6)H(4)-4-CH(3))(2), to Platinum(II). Inorg Chem 1996; 35:1518-1528. [PMID: 11666367 DOI: 10.1021/ic950748w] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The new ligand, 1,1-bis((N-p-tolylimino)diphenylphosphoranyl)ethane (1,1-BIPE), 1, has been synthesized by means of a Staudinger reaction of 1,1-bis(diphenylphosphino)ethane (1,1-dppe) with 2 equiv of p-tolylazide. Bridge-splitting reactions of Pt(2)Cl(4)(PR(3))(2) with 1 readily afforded sigma-N monodentate complexes, [PtCl(2)(PR(3)){1,1-BIPE-sigmaN}] (2a, PR(3) = PEt(3); 2b, PR(3) = PMe(2)Ph). Conversion of 2 into the six-membered platinacycle [PtCl(PR(3)){1,1-BIPE-sigmaN,sigmaN'}](+)[X](-) (3) (X = Cl, PtCl(3)(PR(3)), BF(4)) took place after prolonged stirring, its reaction rate being strongly dependent on the type of phosphine (>5 days for 2ain the presence of NaBF(4), 1 h for 2b) and the metal-to-ligand ratio. The compounds 1, 2, and 3 have been fully characterized by (1)H, (31)P{(1)H}, and (13)C{(1)H} NMR and IR spectroscopy, elemental analysis, or FAB mass spectroscopy. The molecular structures of CHCH(3)(PPh(2)=NC(6)H(4)-4-CH(3))(2) (1) and [PtCl(PMe(2)Ph){(N(pTol)=PPh(2))(2)CHCH(3)}](+)[Cl](-) (3b) have been determined by X-ray crystallography. Crystal data for 1: space group P2(1)/c with a = 8.9591(5) Å, b = 19.1961(12) Å, c = 21.9740(9) Å, beta = 105.069(4) degrees, V = 3649.1(3) Å(3), and Z = 4. The structure refinement converged to R = 0.080 and R(w) = 0.109. Crystal data for 3b: monoclinic, space group P2(1)/c with a = 12.4021(7) Å, b = 16.9705(11) Å, c = 23.760(2) Å, beta = 109.544(5) degrees, V = 4712.7(5) Å(3), and Z = 4. The structure refinement converged to R1 = 0.057, wR2 = 0.122. Variable temperature NMR spectroscopy has revealed that complexes 3 exclusively adopt a twisted boat conformation with the methyl group in equatorial position at low temperature, in agreement with the solid state structure of 3b as determined by X-ray crystallography. Boat-to-boat inversion is assumed to take place at temperatures above 293 K. Furthermore, for 3, hindered rotation of one of the p-tolyl substituents on nitrogen has been established at low temperatures.
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Affiliation(s)
- Mandy W. Avis
- Van't Hoff Research Institute, Anorganisch Chemisch Laboratorium, Universiteit van Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Bijvoet Center for Biomolecular Research, Vakgroep Kristal- en Structuurchemie, Universiteit Utrecht, Padualaan 8, 3584 CH Utrecht, The Netherlands
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Lih-Chiou C, Min-Yuan C, Jia-Hwa C, Yuh-Sheng W, Kuang-Lieh L. Synthesis and reactivity of rhenium(I) isocyanide complexes. Crystal and molecular structures of ReBr(CO) 4{C(NHPh)(NHCHMe2)} and ReBr(CO)3(PPh3)IC(NHPh)(NHCHMe2). J Organomet Chem 1992. [DOI: 10.1016/0022-328x(92)80025-s] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Imhoff P, Elsevier C, Stam C. Iminophosphorane complexes of rhodium(I) and X-ray crystal structure of [Rh(COD)Cl(Et3PN-p-tolyl)]. Inorganica Chim Acta 1990. [DOI: 10.1016/s0020-1693(00)84829-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Cbistau HJ, Garcia C, Kadoura J, Torreilles E. Phosphonium Diaza-Diylids and Aza-Yldiid as New and Efficient Reagents For Primary and Secondary Amines Synthesis. PHOSPHORUS SULFUR 1990. [DOI: 10.1080/10426509008038929] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Elsever CJ, Imhoff P. New Organorhodium and -Iridium Compounds of Iminophosphoranylmethanes. PHOSPHORUS SULFUR 1990. [DOI: 10.1080/10426509008038989] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Imhoff P, Elsevier C. Preparation and crystal structure of [HPPh2NH-p-tolyl)]-[Rh(COD)Cl2]. A rhodium(I) complex containing a new σ-N,σ-C-chelating iminophosphoranylmethanide ligand. J Organomet Chem 1989. [DOI: 10.1016/0022-328x(89)87016-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ang H, Lee F. A novel synthesis and properties of N-bis(trifluoromethyl)nitroxy-iminophosphine, (CF3)2NONPH. Polyhedron 1989. [DOI: 10.1016/s0277-5387(00)80431-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Belen'Kii L. The Literature of Heterocyclic Chemistry, Part III. ADVANCES IN HETEROCYCLIC CHEMISTRY VOLUME 44 1988. [DOI: 10.1016/s0065-2725(08)60264-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Scherer OJ, Göbel K, Kaub J. (Me3Si)2NPNSiMe3 als Edukt für elektronenreiche Phosphor-Stickstoff-Liganden. Angew Chem Int Ed Engl 1987. [DOI: 10.1002/ange.19870990109] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Arbuzov BA, Dianova EN. Cycloaddition an verbindungen mit λ3σ2-phosphor- und λ3σ2-arsen-mehrfachbindungen. ACTA ACUST UNITED AC 1986. [DOI: 10.1080/03086648608083095] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Krishnamurthy SS, Ramabrahmam P, Vasudeva Murthy AR, Shaw RA, Woods M. Studies of phosphazenes. Aminolysis reactions of pentachloro(2?, 2?, 2?-triphenyl-phosphazen-1?-yl) cyclotriphosphazene, N3P3Cl5(NPPh3). Z Anorg Allg Chem 1985. [DOI: 10.1002/zaac.19855220327] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Wamhoff H, Haffmanns G, Schmidt H. Heterocyclische β-Enaminoester, 30. Darstellung sowie Cycloadditions-Ringerweiterungs-Sequenz von Iminophosphoranen heterocyclischer β-Enaminoester: 6,7-Dihydrooxepine, -thiepine und 3,4-Dihydro-2H-thiocine. ACTA ACUST UNITED AC 1983. [DOI: 10.1002/cber.19831160502] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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