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Jain A, Karmakar H, Roesky PW, Panda TK. Role of Bis(phosphinimino)methanides as Universal Ligands in the Coordination Sphere of Metals across the Periodic Table. Chem Rev 2023. [PMID: 38048165 DOI: 10.1021/acs.chemrev.3c00336] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
The coordination chemistry of bis(phosphinimino)methanide ligands is widespread and accompanies a large number of metal ions in the periodic table ranging from lithium to neptunium. This unique class of ligand systems show copious coordination chemistry with the main-group, transition, rare-earth, and actinide metals and are considered to be among the most attractive ligand systems to researchers. The bis(phosphinimino)methanide metal complexes offer an extensive range of applications in various fields and have been demonstrated as one of the universal ligand systems to stabilize the metal ions in not only their usual but also their unusual oxidation states. The main-group and transition metal chemistry using bis(phosphinimino)methanides as ligands was last updated almost a decade ago. In this review, we provide a comprehensive overview of various state-of-the-art bis(phosphinimino)methanide-supported metal complexes by dealing with their synthesis, characterization, reactivity, and catalytic studies which were not included in the last critical reviews.
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Affiliation(s)
- Archana Jain
- Department of Physics and Chemistry, Mahatma Gandhi Institute of Technology (MGIT), Gandipet-500075, Hyderabad, Telangana, India
| | - Himadri Karmakar
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502284, Sangareddy, Telangana, India
| | - Peter W Roesky
- Institut für Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstr. 15 Geb. 30.45, 76131 Karlsruhe, Germany
| | - Tarun K Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502284, Sangareddy, Telangana, India
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2
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Stevens MP, Spray E, Vitorica-Yrezabal IJ, Singh K, Timmermann VM, Sotorrios L, Macgregor SA, Ortu F. Synthesis, characterisation and reactivity of group 2 complexes with a thiopyridyl scorpionate ligand. Dalton Trans 2022; 51:11922-11936. [PMID: 35876311 DOI: 10.1039/d2dt02012b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Herein we report the reactivity of the proligand tris(2-pyridylthio)methane (HTptm) with various Alkaline Earth (AE) reagents: (1) dialkylmagnesium reagents and (2) AE bis-amides (AE = Mg-Ba). Heteroleptic complexes of general formulae [Mg(Tptm)(R)] (R = Me, nBu; Tptm = {C(S-C5H4N)3}-) and [AE(Tptm)(N'')] (AE = Mg-Ba; N'' = {N(SiMe3)2}-) were targeted from the reaction of HTptm with R2Mg or [AE(N'')2]2. Reaction of the proligand with dialkylmagnesium reagents led to formation of [{Mg(κ3C,N,N-C{Bu}{S-C5H4N}2)(μ-S-C5H4N)}2] (1) and [{Mg(κ3C,N,N-C{Me}{S-C5H4N}2)(μ-OSiMe3)}2] (2) respectively, as a result of a novel transfer of an alkyl group onto the methanide carbon with concomitant C-S bond cleavage. However, reactivity of bis-amide precursors for Mg and Ca did afford the target species [AE(Tptm)(N'')] (3-AE; AE = Mg-Ca), although these proved susceptible to ligand degradation processes. DFT calculations show that alkyl transfer in the putative [Mg(Tptm)(nBu)] (1m') system and amide transfer in 3-Ca is a facile process that induces C-S bond cleavage in the Tptm ligand. 3-Mg and 3-Ca were also tested as catalysts for the hydrophosphination of selected alkenes and alkynes, including the first example of mono-hydrophosphination of 4-ethynylpyridine which was achieved with high conversions and excellent regio- and stereochemical control.
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Affiliation(s)
- Matthew P Stevens
- School of Chemistry, University of Leicester, University Road, LE1 7RH Leicester, UK.
| | - Emily Spray
- School of Chemistry, University of Leicester, University Road, LE1 7RH Leicester, UK.
| | | | - Kuldip Singh
- School of Chemistry, University of Leicester, University Road, LE1 7RH Leicester, UK.
| | - Vanessa M Timmermann
- School of Chemistry, University of Leicester, University Road, LE1 7RH Leicester, UK.
| | - Lia Sotorrios
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | - Stuart A Macgregor
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | - Fabrizio Ortu
- School of Chemistry, University of Leicester, University Road, LE1 7RH Leicester, UK.
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3
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Baguli S, Mondal S, Mandal C, Goswami S, Mukherjee D. Cyclopentadienyl Complexes of the Alkaline Earths in Light of the Periodic Trends. Chem Asian J 2022; 17:e202100962. [PMID: 34825506 DOI: 10.1002/asia.202100962] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/02/2021] [Indexed: 11/09/2022]
Abstract
The electron-rich cyclopentadienyl and the analogous indenyl and fluorenyl ligands (collectively denoted here as Cp') have been impactful in stabilizing electron-deficient metal centers including the highly electropositive alkaline earths. Being in the s-block, the group 2 metals follow a major periodic variation in their atomic and ionic properties which is reflected in those Cp' compounds. This article presents an overview of this class of compounds for all the five metals from beryllium to barium (radium is excluded for its radioactivity), highlighting their systematic variation.
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Affiliation(s)
- Sudip Baguli
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Nadia, 741246, West Bengal, India
| | - Sumana Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Nadia, 741246, West Bengal, India
| | - Chhotan Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Nadia, 741246, West Bengal, India
| | - Santu Goswami
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Nadia, 741246, West Bengal, India
| | - Debabrata Mukherjee
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur Nadia, 741246, West Bengal, India
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Khristolyubov DO, Lyubov DM, Shavyrin AS, Cherkasov AV, Fukin GK, Trifonov AA. Ln( ii) and Ca( ii) NC sp3N pincer type diarylmethanido complexes – promising catalysts for C–C and C–E (E = Si, P, N, S) bond formation. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00369g] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The first examples of Ln(ii) (Ln = Yb, Sm) and Ca [NCsp3N] pincer type diarylmethanido complexes were synthesized and successfully used as efficient and selective precatalyst for intermolecular C–C and C–E bond formation.
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Affiliation(s)
| | - Dmitry M. Lyubov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Andrey S. Shavyrin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Anton V. Cherkasov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Georgy K. Fukin
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
| | - Alexander A. Trifonov
- Institute of Organometallic Chemistry of Russian Academy of Sciences
- Nizhny Novgorod
- Russia
- Institute of Organoelement Compounds of Russian Academy of Sciences
- Moscow
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5
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Richter B, Grinderslev JB, Møller KT, Paskevicius M, Jensen TR. From Metal Hydrides to Metal Borohydrides. Inorg Chem 2018; 57:10768-10780. [PMID: 30137973 DOI: 10.1021/acs.inorgchem.8b01398] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Commencing from metal hydrides, versatile synthesis, purification, and desolvation approaches are presented for a wide range of metal borohydrides and their solvates. An optimized and generalized synthesis method is provided for 11 different metal borohydrides, M(BH4) n, (M = Li, Na, Mg, Ca, Sr, Ba, Y, Nd, Sm, Gd, Yb), providing controlled access to more than 15 different polymorphs and in excess of 20 metal borohydride solvate complexes. Commercially unavailable metal hydrides (MH n, M = Sr, Ba, Y, Nd, Sm, Gd, Yb) are synthesized utilizing high pressure hydrogenation. For synthesis of metal borohydrides, all hydrides are mechanochemically activated prior to reaction with dimethylsulfide borane. A purification process is devised, alongside a complementary desolvation process for solvate complexes, yielding high purity products. An array of polymorphically pure metal borohydrides are synthesized in this manner, supporting the general applicability of this method. Additionally, new metal borohydrides, α-, α'- β-, γ-Yb(BH4)2, α-Nd(BH4)3 and new solvates Sr(BH4)2·1THF, Sm(BH4)2·1THF, Yb(BH4)2· xTHF, x = 1 or 2, Nd(BH4)3·1Me2S, Nd(BH4)3·1.5THF, Sm(BH4)3·1.5THF and Yb(BH4)3· xMe2S (" x" = unspecified), are presented here. Synthesis conditions are optimized individually for each metal, providing insight into reactivity and mechanistic concerns. The reaction follows a nucleophilic addition/hydride-transfer mechanism. Therefore, the reaction is most efficient for ionic and polar-covalent metal hydrides. The presented synthetic approaches are widely applicable, as demonstrated by permitting facile access to a large number of materials and by performing a scale-up synthesis of LiBH4.
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Affiliation(s)
- Bo Richter
- Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry , Aarhus University , Langelandsgade 140 , 8000 Aarhus C , Denmark
| | - Jakob B Grinderslev
- Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry , Aarhus University , Langelandsgade 140 , 8000 Aarhus C , Denmark
| | - Kasper T Møller
- Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry , Aarhus University , Langelandsgade 140 , 8000 Aarhus C , Denmark.,Department of Physics and Astronomy, Fuels and Energy Technology Institute , Curtin University , Wark Avenue , Bentley , Western Australia 6102 , Australia
| | - Mark Paskevicius
- Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry , Aarhus University , Langelandsgade 140 , 8000 Aarhus C , Denmark.,Department of Physics and Astronomy, Fuels and Energy Technology Institute , Curtin University , Wark Avenue , Bentley , Western Australia 6102 , Australia
| | - Torben R Jensen
- Center for Materials Crystallography, Interdisciplinary Nanoscience Center and Department of Chemistry , Aarhus University , Langelandsgade 140 , 8000 Aarhus C , Denmark
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Methanediide Formation via Hydrogen Elimination in Magnesium versus Aluminium Hydride Complexes of a Sterically Demanding Bis(iminophosphoranyl)methanediide. INORGANICS 2017. [DOI: 10.3390/inorganics5020029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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7
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Bayram M, Gondzik S, Bläser D, Wölper C, Schulz S. Syntheses and Structures of Zinc Bis(phosphinimino)methanide Complexes. Z Anorg Allg Chem 2016. [DOI: 10.1002/zaac.201600196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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8
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Schmid M, Oña-Burgos P, Guillaume SM, Roesky PW. (Iminophosphoranyl)(thiophosphoranyl)methane rare-earth borohydride complexes: synthesis, structures and polymerization catalysis. Dalton Trans 2015; 44:12338-48. [DOI: 10.1039/c4dt04034a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The {CH(PPh2NSiMe3)(PPh2S)}−ligand has been used for the synthesis of divalent and trivalent rare-earth borohydride complexes. These compounds enable the ring-opening polymerization (ROP) of ε-caprolactone (CL) and trimethylene carbonate (TMC).
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Affiliation(s)
- Matthias Schmid
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
- Institut des Sciences Chimiques de Rennes
| | - Pascual Oña-Burgos
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
- Department of Chemistry and Physics
| | - Sophie M. Guillaume
- Institut des Sciences Chimiques de Rennes
- CNRS - Université de Rennes 1 (UMR 6226)
- Organometallics
- Materials and Catalysis
- Campus de Beaulieu
| | - Peter W. Roesky
- Institut für Anorganische Chemie
- Karlsruher Institut für Technologie (KIT)
- 76131 Karlsruhe
- Germany
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Jaffredo CG, Schmid M, del Rosal I, Mevel T, Roesky PW, Maron L, Guillaume SM. PMLABe Diol Synthesized by Ring-Opening Polymerization of Racemic Benzyl β-Malolactonate Initiated by Rare-Earth Trisborohydride Complexes: An Experimental and DFT Study. Chemistry 2014; 20:14387-402. [DOI: 10.1002/chem.201403545] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Indexed: 01/07/2023]
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10
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Murugesapandian B, Kuzdrowska M, Gamer MT, Hartenstein L, Roesky PW. (Iminophosphoranyl)(thiophosphoranyl)methanide {CH(PPh2NSiMe3)(Ph2PS)}− as a Ligand in Rare-Earth-Element Chemistry. Organometallics 2013. [DOI: 10.1021/om400001e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
| | - Magdalena Kuzdrowska
- Institut für
Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131
Karlsruhe, Germany
| | - Michael T. Gamer
- Institut für
Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131
Karlsruhe, Germany
| | - Larissa Hartenstein
- Institut für
Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131
Karlsruhe, Germany
| | - Peter W. Roesky
- Institut für
Anorganische Chemie, Karlsruher Institut für Technologie (KIT), Engesserstrasse 15, 76131
Karlsruhe, Germany
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11
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Guillaume SM, Annunziata L, Rosal ID, Iftner C, Maron L, Roesky PW, Schmid M. Ring-opening polymerization of racemic β-butyrolactone promoted by rare earth trisborohydride complexes towards a PHB-diol: an experimental and DFT study. Polym Chem 2013. [DOI: 10.1039/c3py00056g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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12
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Clark L, Deacon GB, Forsyth CM, Junk PC, Mountford P, Townley JP, Wang J. Synthesis and structures of calcium and strontium 2,4-di-tert-butylphenolates and their reactivity towards the amine co-initiated ring-opening polymerisation of rac-lactide. Dalton Trans 2013; 42:9294-312. [DOI: 10.1039/c3dt00065f] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Collins RA, Unruangsri J, Mountford P. Synthesis and rac-lactide ring-opening polymerisation studies of new alkaline earth tetrahydroborate complexes. Dalton Trans 2013; 42:759-69. [DOI: 10.1039/c2dt32151c] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Kuzdrowska M, Annunziata L, Marks S, Schmid M, Jaffredo CG, Roesky PW, Guillaume SM, Maron L. Organometallic calcium and strontium borohydrides as initiators for the polymerization of ε-caprolactone and l-lactide: combined experimental and computational investigations. Dalton Trans 2013; 42:9352-60. [DOI: 10.1039/c3dt00037k] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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15
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Marks S, Heck JG, Habicht MH, Oña-Burgos P, Feldmann C, Roesky PW. [Ln(BH4)2(THF)2] (Ln = Eu, Yb)—A Highly Luminescent Material. Synthesis, Properties, Reactivity, and NMR Studies. J Am Chem Soc 2012; 134:16983-6. [DOI: 10.1021/ja308077t] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Sebastian Marks
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstraße
15, 76131 Karlsruhe, Germany
| | - Joachim G. Heck
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstraße
15, 76131 Karlsruhe, Germany
| | - Marija H. Habicht
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstraße
15, 76131 Karlsruhe, Germany
| | - Pascual Oña-Burgos
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstraße
15, 76131 Karlsruhe, Germany
| | - Claus Feldmann
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstraße
15, 76131 Karlsruhe, Germany
| | - Peter W. Roesky
- Institut für Anorganische
Chemie, Karlsruher Institut für Technologie (KIT), Engesserstraße
15, 76131 Karlsruhe, Germany
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