1
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Scott J, Maenaga ML, Woodside AJ, Guo VW, Cheriel AR, Gau MR, Rablen PR, Graves CR. Reversible O-H Bond Activation by Tripodal tris(Nitroxide) Aluminum and Gallium Complexes. Inorg Chem 2024; 63:4028-4038. [PMID: 38386423 PMCID: PMC10915791 DOI: 10.1021/acs.inorgchem.3c02902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/24/2024]
Abstract
Herein, we report the preparation and characterization of the Group 13 metal complexes of a tripodal tris(nitroxide)-based ligand, designated (TriNOx3-)M (M = Al (1), Ga (2), In (3)). Complexes 1 and 2 both activate the O-H bond of a range of alcohols spanning a ∼10 pKa unit range via an element-ligand cooperative pathway to afford the zwitterionic complexes (HTriNOx2-)M-OR. Structures of these alcohol adduct products are discussed. We demonstrate that the thermodynamic and kinetic aspects of the reactions are both influenced by the identity of the metal, with 1 having higher reaction equilibrium constants and proceeding at a faster rate relative to 2 for any given alcohol. These parameters are also influenced by the pKa of the alcohol, with more acidic alcohols reacting both to more completion and faster than their less acidic counterparts. Possible mechanistic pathways for the O-H activation are discussed.
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Affiliation(s)
- Joseph
S. Scott
- Department
of Chemistry & Biochemistry, Swarthmore
College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Mika L. Maenaga
- Department
of Chemistry & Biochemistry, Swarthmore
College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Audra J. Woodside
- Department
of Chemistry & Biochemistry, Swarthmore
College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Vivian W. Guo
- Department
of Chemistry & Biochemistry, Swarthmore
College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Alex R. Cheriel
- Department
of Chemistry & Biochemistry, Swarthmore
College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Michael R. Gau
- Department
of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Paul R. Rablen
- Department
of Chemistry & Biochemistry, Swarthmore
College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
| | - Christopher R. Graves
- Department
of Chemistry & Biochemistry, Swarthmore
College, 500 College Avenue, Swarthmore, Pennsylvania 19081, United States
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2
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Zhang H, Wang Y, Lu Q, Song J, Duan Y, Zeng Y, Mo Y. Stretched Central Double Bonds in Dialumene and Disilene by Amino Substituents: A Case of Lone Pair Repulsion. Chemistry 2023; 29:e202301862. [PMID: 37506171 DOI: 10.1002/chem.202301862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 07/30/2023]
Abstract
There have been remarkable advances in the syntheses and applications of groups 13 and 14 homonuclear ethene analogues. However, successes are largely limited to aryl- and/or silyl-substituted species. Analogues bearing two or more heteroatoms are still scarce. In this work, the block-localized wavefunction (BLW) method at the density functional theory (DFT) level was employed to study dialumene and disilene bearing two amino substituents whose optimal geometries exhibit significantly stretched central M=M (M=Al or Si) double bonds compared with aryl- and/or silyl-substituted species. Computational analyses showed that the repulsion between the lone electron pairs of amino substituents and M=M π bond plays a critical role in the elongation of the M=M bonds. Evidently, replacing the substituent groups -NH2 with -BH2 can enhance the planarity and shorten the central double bonds due to the absence of lone pair electrons in BH2 .
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Affiliation(s)
- Huaiyu Zhang
- Institute of Computational Quantum Chemistry, and Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, 050024, China
| | - Yating Wang
- Institute of Computational Quantum Chemistry, and Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, 050024, China
| | - Qingrui Lu
- Institute of Computational Quantum Chemistry, and Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, 050024, China
| | - Jinshuai Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
| | - Yandong Duan
- Hebei Key Laboratory of Photoelectric Control on Surface and Interface, School of Sciences, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Yanli Zeng
- Institute of Computational Quantum Chemistry, and Hebei Key Laboratory of Inorganic Nano-materials, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang, 050024, China
| | - Yirong Mo
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, NC 27401, USA
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3
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Haider W, Calvin-Brown MD, Bischoff IA, Huch V, Morgenstern B, Müller C, Sergeieva T, Andrada DM, Schäfer A. Diarylpnictogenyldialkylalanes─Synthesis, Structures, Bonding Analysis, and CO 2 Capture. Inorg Chem 2022; 61:1672-1684. [PMID: 34985262 DOI: 10.1021/acs.inorgchem.1c03494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Several new diphenylamino- and diphenylphosphanyldialkylalanes are reported, which were characterized in solution and in the solid state, assisted by in-depth bonding analysis within the DFT framework. In the case of bulky alkyl substituents on the aluminum atom, the species are stable in their monomeric form and were structurally characterized by single crystal X-ray diffraction, expanding the relatively small field of monomeric pnictogenylalanes. In the case of oligomeric diphenylpnictogenyldimethylalanes, their reactivity toward different σ-donor ligands was studied, and several examples of monomeric adducts could be structurally characterized, including the first cyclic(alkyl)(amino)carbene complexes. The reactivity of these CAAC complexes, their oligomeric precursors, and an unstabilized monomeric aminoalane toward CO2 was probed, leading to different insertion products that could be characterized. Additionally, the mechanism was elucidated by DFT calculations.
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Affiliation(s)
- Wasim Haider
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Marces Devonne Calvin-Brown
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Inga-Alexandra Bischoff
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Volker Huch
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Bernd Morgenstern
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Carsten Müller
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Tetiana Sergeieva
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - Diego M Andrada
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
| | - André Schäfer
- Saarland University, Faculty of Natural Sciences and Technology, Department of Chemistry, Campus Saarbrücken, 66123 Saarbrücken, Federal Republic of Germany
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4
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Pollard VA, Fuentes MA, Robertson SD, Weetman C, Kennedy AR, Brownlie J, Angus FJ, Smylie C, Mulvey RE. Reactivity studies and structural outcomes of a bulky dialkylaluminium amide in the presence of the N-heterocyclic carbene, ItBu. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Raiser D, Eichele K, Schubert H, Wesemann L. Phosphine-Stabilized Pnictinidenes. Chemistry 2021; 27:14073-14080. [PMID: 34291518 PMCID: PMC8518042 DOI: 10.1002/chem.202102320] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 11/12/2022]
Abstract
The reaction of the intramolecular germylene‐phosphine Lewis pair (o‐PPh2)C6H4GeAr* (1) with Group 15 element trichlorides ECl3 (E=P, As, Sb) was investigated. After oxidative addition, the resulting compounds (o‐PPh2)C6H4(Ar*)Ge(Cl)ECl2 (2: E=P, 3: E=As, 4: E=Sb) were reduced by using sodium metal or LiHBEt3. The molecular structures of the phosphine‐stabilized phosphinidene (o‐PPh2)C6H4(Ar*)Ge(Cl)P (5), arsinidene (o‐PPh2)C6H4(Ar*)Ge(Cl)As (6) and stibinidene (o‐PPh2)C6H4(Ar*)Ge(Cl)Sb (7) are presented; they feature a two‐coordinate low‐valent Group 15 element. After chloride abstraction, a cyclic germaphosphene [(o‐PPh2)C6H4(Ar*)GeP] [B(C6H3(CF3)2)4] (8) was isolated. The 31P NMR data of the germaphosphene were compared with literature examples and analyzed by quantum chemical calculations. The phosphinidene was treated with [iBu2AlH]2, and the product of an Al−H addition to the low‐valent phosphorus atom (o‐PPh2)C6H4(Ar*)Ge(H)P(H)Al(C4H9)2 (9) was characterized.
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Affiliation(s)
- Dominik Raiser
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Klaus Eichele
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Hartmut Schubert
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
| | - Lars Wesemann
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany
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6
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Phan NA, Sherbow TJ, Fettinger JC, Berben LA. Synthesis of Unsupported Primary Phosphido Complexes of Aluminum(III). Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Nathan A. Phan
- Department of Chemistry The University of California Davis CA 95616 United States
| | - Tobias J. Sherbow
- Department of Chemistry The University of California Davis CA 95616 United States
| | - James C. Fettinger
- Department of Chemistry The University of California Davis CA 95616 United States
| | - Louise A. Berben
- Department of Chemistry The University of California Davis CA 95616 United States
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7
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Weinhart MAK, Seidl M, Timoshkin AY, Scheer M. NHC-stabilized Parent Arsanylalanes and -gallanes. Angew Chem Int Ed Engl 2021; 60:3806-3811. [PMID: 33197127 PMCID: PMC7898810 DOI: 10.1002/anie.202013849] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/16/2020] [Indexed: 01/29/2023]
Abstract
The synthesis and characterization of the unprecedented compounds IDipp⋅E'H2 AsH2 (E'=Al, Ga; IDipp=1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene) are reported, the first monomeric, parent representatives of an arsanylalane and arsanylgallane, respectively, stabilized only by a LB (LB=Lewis Base). They are prepared by a salt metathesis reaction of KAsH2 with IDipp⋅E'H2 Cl (E'=Al, Ga). The H2 -elimination pathway through the reaction of AsH3 with IDipp⋅E'H3 (E'=Al, Ga) was found to be a possible synthetic route with some disadvantages compared to the salt metathesis reaction. The corresponding organo-substituted compounds IDipp⋅GaH2 AsPh2 (1) and IDipp⋅AlH2 AsPh2 (2) were obtained by the reaction of KAsPh2 with IDipp⋅E'H2 Cl (E'=Al, Ga). The novel branched parent compounds IDipp⋅E'H(EH2 )2 (E'=Al, Ga; E=P, As) were synthesized by salt metathesis reactions starting from IDipp⋅E'HCl2 (E'=Al, Ga). Supporting DFT computations give insight into the different synthetic pathways and the stability of the products.
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Affiliation(s)
| | - Michael Seidl
- Institut für Anorganische ChemieUniversität Regensburg93040RegensburgGermany
| | - Alexey Y. Timoshkin
- Institute of ChemistrySaint Petersburg State UniversityUniversitetskaya emb. 7/9199034St. PetersburgRussia
| | - Manfred Scheer
- Institut für Anorganische ChemieUniversität Regensburg93040RegensburgGermany
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8
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Weinhart MAK, Seidl M, Timoshkin AY, Scheer M. NHC‐stabilisierte Stammverbindungen der Arsanylalane und ‐gallane. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013849] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Michael Seidl
- Institut für Anorganische Chemie Universität Regensburg 93040 Regensburg Deutschland
| | - Alexey Y. Timoshkin
- Institut für Chemie Staatliche Universität St. Petersburg Universitetskaya emb. 7/9 199034 St. Petersburg Russland
| | - Manfred Scheer
- Institut für Anorganische Chemie Universität Regensburg 93040 Regensburg Deutschland
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9
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Helling C, Wölper C, Schulz S. Size Matters: Synthesis of Group 13 Metal‐Substituted Dipnictanes by E‐C Bond Homolysis. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000747] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Christoph Helling
- Institute of Inorganic Chemistry and Center for Nanointegration Duisburg‐Essen (CENIDE) University of Duisburg‐Essen Universitätsstraße 5‐7 45141 Essen Germany
| | - Christoph Wölper
- Institute of Inorganic Chemistry and Center for Nanointegration Duisburg‐Essen (CENIDE) University of Duisburg‐Essen Universitätsstraße 5‐7 45141 Essen Germany
| | - Stephan Schulz
- Institute of Inorganic Chemistry and Center for Nanointegration Duisburg‐Essen (CENIDE) University of Duisburg‐Essen Universitätsstraße 5‐7 45141 Essen Germany
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10
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Koshino K, Kinjo R. Fragmentation of White Phosphorus by a Cyclic (Alkyl)(Amino)Alumanyl Anion. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00444] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kota Koshino
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore
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11
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Yanagisawa T, Mizuhata Y, Tokitoh N. Additive-Free Conversion of Internal Alkynes by Phosphanylalumanes: Production of Phosphorus/Aluminum Frustrated Lewis Pairs. Chempluschem 2020; 85:933-942. [PMID: 32401435 DOI: 10.1002/cplu.202000239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/24/2020] [Accepted: 04/29/2020] [Indexed: 11/10/2022]
Abstract
Internal and terminal alkynes react with phosphanylalumanes, i. e., P-Al single-bond species, through heating but without any additional additives. The reactions with internal alkynes afforded the corresponding adducts with cis-1,2-form in moderate yields (54-80 %). In addition, alkyne adducts thus obtained function as P/Al-based C2 -vicinal FLPs, and the FLP addition reactions with benzaldehyde and CO2 were demonstrated. Furthermore, in the reaction of 2,4,6-trimethylphenyl-substituted alkyne adducts with dimethyl acetylenedicarboxylate, an unexpected CAr -CMe bond cleavage characteristic of this system was demonstrated.
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Affiliation(s)
- Tatsuya Yanagisawa
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto, 611-0011, Japan
| | - Yoshiyuki Mizuhata
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto, 611-0011, Japan.,Integrated Research Consortium on Chemical Sciences Uji, Kyoto, Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto, 611-0011, Japan.,Integrated Research Consortium on Chemical Sciences Uji, Kyoto, Japan
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12
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Syntheses and Structures of Novel λ3,λ3-Phosphanylalumanes Fully Bearing Carbon Substituents and Their Substituent Effects. INORGANICS 2019. [DOI: 10.3390/inorganics7110132] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The novel phosphanylalumanes, Al–P single-bond species, fully bearing carbon protecting groups on aluminum and phosphorus atoms, are synthesized by the reactions of aluminum monohalides [(t-Bu)2AlBr and (C6F5)2AlCl·0.5(toluene)] with Mes2PLi. Regarding the t-Bu system, λ3,λ3-phosphanylalumane is obtained. Concerning the C6F5 system, on the other hand, the corresponding LiCl complex, λ4,λ4-phosphanylalumane, is obtained. The Al–P bond lengths of C6F5-substituted λ3,λ4-, and λ4,λ4-derivatives are much shorter than those of the reported λ3,λ4-phosphanylalumane derivatives and comparable to that observed for the previously reported λ3,λ3-phosphanylalumanes. Theoretical calculations reveal that the binding of the C6F5 groups to Al results in a large contribution of Al and a large s-character in the Al–P bond of phosphanylalumanes. Considering t-Bu-substituted phosphanylalumanes, the Al–P bond lengths reflect the coordination number of Al, showing a longer Al–P bond length in the case of λ4-Al as compared with that of λ3-Al. Combining the structural, spectroscopic, and theoretical results, the t-Bu-substituted λ3,λ3-phosphanylalumane has well separated vacant p orbital and lone pairs, which is suitable for reactivity studies.
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13
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Caise A, Kolychev EL, Hicks J, Fuentes MÁ, Goicoechea JM, Aldridge S. Reversible borohydride formation from aluminium hydrides and {H(9-BBN)} 2: structural, thermodynamic and reactivity studies. Dalton Trans 2019; 48:10845-10852. [PMID: 30848267 DOI: 10.1039/c9dt00535h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A series of novel β-diketiminate stabilised aluminium borohydrides of the type (Nacnac)Al(R){H2(9-BBN)} has been synthesised offering variation in both the auxiliary R substituent and in the Nacnac backbone itself. A number of these complexes show unusual dissociation of the borane from the aluminium hydride in solution under ambient conditions. The lability of the borane is shown (by variable temperature NMR analyses) to be influenced by the electronic character of both the aluminium-bound R substituent and the Nacnac ligand itself, such that electron-withdrawing substituents lead to greater dissociation of the borane. Comparison of these complexes with related systems featuring the tetrahydroborate [BH4]- ligand illustrates the impact of the boron-bound substituents on the ability of the borane fragment to dissociate from the aluminium hydride. This dissociative behaviour is shown to be highly influential on the ability of the borohydride complexes to reduce carbon dioxide in a stoichiometric manner.
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Affiliation(s)
- Alexa Caise
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Eugene L Kolychev
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Jamie Hicks
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - M Ángeles Fuentes
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Jose M Goicoechea
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
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14
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Pomogaeva AV, Scheer M, Timoshkin AY. Why Do B–P and Al–P Polymers Differ? Structures, Stability, and Electronic Properties of Chain and Ring [H
2
PEH
2
]
n
Oligomers (E=B, Al;
n
=1
–
15). Chemistry 2018; 24:17046-17054. [DOI: 10.1002/chem.201803008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/25/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Anna V. Pomogaeva
- Institute of ChemistrySt. Petersburg State University Universitetskaya nab. 7/9 St. Petersburg 199034 Russia
| | - Manfred Scheer
- Institut für Anorganische ChemieUniversität Regensburg 93040 Regensburg Germany
| | - Alexey Y. Timoshkin
- Institute of ChemistrySt. Petersburg State University Universitetskaya nab. 7/9 St. Petersburg 199034 Russia
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15
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Wang C, Lin Y, Tseng H, Lee G, Peng S, Chiu C. N‐Heterocyclic Carbene Complexes of Cp*–Aluminum Triflate. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800205] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chen‐Hao Wang
- Department of Chemistry National Taiwan University No. 1, Section 4, Roosevelt Road 10617 Taipei Taiwan
| | - Ya‐Fan Lin
- Department of Fragrance and Cosmetic Science Department of Medicinal and Applied Chemistry Kaohsiung Medical University 100 Shi‐Chuan 1st Rd. 80708 Kaohsiung San‐Ming Dist. Taiwan
| | - Hsi‐Ching Tseng
- Department of Chemistry National Taiwan University No. 1, Section 4, Roosevelt Road 10617 Taipei Taiwan
| | - Gene‐Shiang Lee
- Department of Chemistry National Taiwan University No. 1, Section 4, Roosevelt Road 10617 Taipei Taiwan
| | - Shie‐Ming Peng
- Department of Chemistry National Taiwan University No. 1, Section 4, Roosevelt Road 10617 Taipei Taiwan
| | - Ching‐Wen Chiu
- Department of Chemistry National Taiwan University No. 1, Section 4, Roosevelt Road 10617 Taipei Taiwan
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16
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Chu T, Boyko Y, Korobkov I, Kuzmina LG, Howard JAK, Nikonov GI. Oxidative Addition of Disulfides, Alkyl Sulfides, and Diphosphides to an Aluminum(I) Center. Inorg Chem 2016; 55:9099-104. [DOI: 10.1021/acs.inorgchem.6b01668] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Terry Chu
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Yaroslav Boyko
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Ilia Korobkov
- X-ray Core Facility,
Faculty of Science, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5, Canada
| | - Lyudmila G. Kuzmina
- N. S. Kurnakov Institute of General and Inorganic Chemistry, 31 Leninskii Prospekt, Moscow 119991, Russia
| | - Judith A. K. Howard
- Department of Chemistry, Durham University, South Road, Durham DH1
3LE, United Kingdom
| | - Georgii I. Nikonov
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
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17
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Qin Q, Guo Z, Wei X. Synthesis and structural characterization of novel amidinolithium compounds by the insertion reaction of CO2 into the Li–N bond. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Cakir T, Sabuncuoglu MZ, Soyer V, Sarici B, Koc S, Onur A, Unal B, Akbulut S, Yilmaz S. Use of the Right Lobe Graft With Double Hepatic Arteries in Living-Donor Liver Transplant. EXP CLIN TRANSPLANT 2016; 20:495-499. [PMID: 26767402 DOI: 10.6002/ect.2015.0108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES We aimed to examine management of double hepatic artery reconstruction in patients under going living-donor liver transplant. MATERIALS AND METHODS Between January 2002 and June 2014, one thousand thirty-six living-donor liver transplants were performed at the Liver Transplant Institute of Malatya Inonu University. Living liver grafts with a single hepatic artery were used in 983 living-donor liver transplants, while grafts with double hepatic artery branches were used in 53 living-donor liver transplants. All of the liver grafts with double hepatic artery branches were right lobe grafts. Hepatic artery anastomosis technique and the other medical data of recipients who used grafts with double hepatic arteries were analyzed retrospectively. RESULTS A double hepatic artery anastomosis was created in 43 recipients, while a single anastomosis was created in the remaining 10 because of ligation of the nondominant hepatic artery branch. In 40 recipients, double hepatic artery branches in the graft were anastomosed with the recipient's right and left hepatic artery. In the remaining 3 recipients, double hepatic artery branches in the graft were anastomosed with the recipient's right hepatic artery and large segment 4 hepatic arteries. Postoperative complications related with hepatic artery anas-tomoses developed in 3 recipients: hepatic artery thrombosis (n = 1), hepatic artery aneurysm (n = 1), and hepatic artery stenosis (n = 1). A recipient with hepatic artery aneurysm immediately underwent a retransplant. A recipient with a hepatic artery thrombosis relapsed and required retransplant, which was treated with thrombectomy on postoperative day 10. A recipient with hepatic artery stenosis was followed conservatively. In our series, the incidence of complications related with double hepatic artery anastomosis was found to be 6.9%. CONCLUSIONS According to our experiences, a double hepatic artery anastomosis does not increase the risk of hepatic artery thrombosis and can be performed safely by surgeons who are experienced with hepatic vascular reconstructions in a living-donor liver transplant recipient.
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Affiliation(s)
- Tugrul Cakir
- From the Inonu University, Faculty of Medicine, Department of General Surgery, Malatya, Turkey
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Agou T, Ikeda S, Sasamori T, Tokitoh N. Synthesis and Structure of Lewis‐Base‐Free Phosphinoalumane Derivatives. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501141] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tomohiro Agou
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611‐0011, Japan, http://boc.kuicr.kyoto‐u.ac.jp/www/index‐e.html
| | - Shin Ikeda
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611‐0011, Japan, http://boc.kuicr.kyoto‐u.ac.jp/www/index‐e.html
| | - Takahiro Sasamori
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611‐0011, Japan, http://boc.kuicr.kyoto‐u.ac.jp/www/index‐e.html
| | - Norihiro Tokitoh
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611‐0011, Japan, http://boc.kuicr.kyoto‐u.ac.jp/www/index‐e.html
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20
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Shih TW, Li MC, Su MD. Doubly bonded E13═P and B═E15 molecules and their reactions with H2, acetonitrile, benzophenone, and 2,3-dimethylbutadiene. Inorg Chem 2015; 54:5154-61. [PMID: 25954984 DOI: 10.1021/acs.inorgchem.5b00512] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The bonding properties and the potential energy surfaces for the chemical reactions of doubly bonded compounds that have the >E13═E15< pattern are studied using density functional theory (M06-2X/Def2-SVPD). Nine molecules, >E13═P< (E13 = B, Al, Ga, In, and Tl) and >B═E15< (E15 = N, P, As, Sb, and Bi), are used as model reactants in this work. Four types of chemical reactions, H2 addition, acetonitrile, benzophenone [2 + 2] cycloadditions, and dimethylbutadiene [4 + 2] cycloaddition, are used to study the chemical reactivity of these inorganic, ethylene-like molecules. The results of these theoretical analyses show that only the >B═P< molecule has a weak B═P double bond, while the >Al═P< , >Ga═P< , >In═P< , >Tl═P< , >B═N< , >B═As<, >B═Sb<, and >B═Bi< compounds are best described as having a strong single σ bond, instead of a traditional p-p π bond. The theoretical results also show that the singlet-triplet energy gap can be used to determine the relative reactivity of these doubly bonded molecules. According to these theoretical investigations, it is predicted that the order of reactivity is as follows: B═P > Al═P > Ga═P > In═P > Tl═P and B═N ≪ B═P < B═As < B═Sb < B═Bi. The conclusions drawn are consistent with the available experimental observations.
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Affiliation(s)
- Tsung-Wei Shih
- †Department of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan
| | - Ming-Chung Li
- †Department of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan
| | - Ming-Der Su
- †Department of Applied Chemistry, National Chiayi University, Chiayi 60004, Taiwan.,‡Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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21
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Clegg W, Crosbie E, Dale-Black SH, Hevia E, Honeyman GW, Kennedy AR, Mulvey RE, Ramsay DL, Robertson SD. Structurally Defined Zincated and Aluminated Complexes of Ferrocene Made by Alkali-Metal Synergistic Syntheses. Organometallics 2015. [DOI: 10.1021/om5012352] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- William Clegg
- School
of Chemistry, Newcastle University, Newcastle upon Tyne, NE1
7RU, U.K
| | - Elaine Crosbie
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | | | - Eva Hevia
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Gordon W. Honeyman
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Alan R. Kennedy
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Robert E. Mulvey
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Donna L. Ramsay
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
| | - Stuart D. Robertson
- WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, U.K
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22
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Kampová H, Riemlová E, Klikarová J, Pejchal V, Merna J, Vlasák P, Švec P, Růžičková Z, Růžička A. Aluminium complexes containing N,N′-chelating amino-amide hybrid ligands applicable for preparation of biodegradable polymers. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2014.12.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Murphy LJ, Robertson KN, Kemp RA, Tuononen HM, Clyburne JAC. Structurally simple complexes of CO2. Chem Commun (Camb) 2015; 51:3942-56. [DOI: 10.1039/c4cc08510h] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A wide range of structurally characterized adducts of CO2are discussed in this review, from the strongly bound, charge assisted carbamate complexes through the weaker halide and pseudo-halide complexes to the weakest possible inclusion complexes.
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Affiliation(s)
- Luke J. Murphy
- The Atlantic Centre for Green Chemistry
- Department of Chemistry
- Saint Mary's University
- Halifax
- Canada
| | - Katherine N. Robertson
- The Atlantic Centre for Green Chemistry
- Department of Chemistry
- Saint Mary's University
- Halifax
- Canada
| | - Richard A. Kemp
- Department of Chemistry
- University of New Mexico
- Albuquerque
- USA
- Advanced Materials Laboratory
| | | | - Jason A. C. Clyburne
- The Atlantic Centre for Green Chemistry
- Department of Chemistry
- Saint Mary's University
- Halifax
- Canada
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24
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A chiral two-dimensional coordination polymer based on Cu II and ( S )-4,4′-bis(4-carboxyphenyl)-2,2′-bis(diphenylphosphinoyl)-1,1′-binaphthyl: Synthesis, structure, and magnetic and optical properties. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.06.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Unsinn A, Wunderlich SH, Jana A, Karaghiosoff K, Knochel P. A convenient alumination of functionalized aromatics by using the frustrated Lewis pair Et3 Al and TMPMgCl⋅LiCl. Chemistry 2013; 19:14687-96. [PMID: 24027191 DOI: 10.1002/chem.201301869] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Indexed: 11/07/2022]
Abstract
A straightforward and efficient alumination of functionalized arenes by using the frustrated Lewis pair Et3 Al and TMPMgCl⋅LiCl (TMP=2,2,6,6-tetramethylpiperidyl) has been developed. In particular, halogenated electron-rich aromatics can be smoothly functionalized by using the frustrated Lewis pair Et3 Al and TMPMgCl⋅LiCl. Compared with previously described alumination methods, this procedure avoids extensive cooling and the need for an excess of base. This in situ procedure has proven to be most practical and allows for regio- and chemoselective metalation of a wide range of aromatics with sensitive functional groups (CONEt2 , CO2 Me, CN, OCONMe2 ) or halogens (F, Cl, Br, I). The resulting aromatic aluminates, which were characterized by using NMR spectroscopy, were subjected to allylations, acylations, and palladium-catalyzed cross-coupling reactions after transmetalation to zinc. It was shown that the nature of the Zn salt used for transmetalation is crucial. Thus, compared with ZnCl2 (2 equiv), the use of Zn(OPiv)2 (2 equiv; OPiv=pivalate) allows the subsequent quenching reactions to be performed with only a slight excess of electrophile (1.2 equiv) and provides interesting functionalized aromatics in good yields.
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Affiliation(s)
- Andreas Unsinn
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377 München (Germany), Fax: (+49) 89-2180-77680
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26
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Arras J, Eichele K, Wesemann L. Synthesis and Skeletal Transformations of Trinuclear Palladium and Nickel Phosphido Complexes. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300775] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Janet Arras
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany, http://anorganik.uni‐tuebingen.de/akwesemann/
| | - Klaus Eichele
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany, http://anorganik.uni‐tuebingen.de/akwesemann/
| | - Lars Wesemann
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany, http://anorganik.uni‐tuebingen.de/akwesemann/
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27
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Hengesbach F, Jin X, Hepp A, Wibbeling B, Würthwein EU, Uhl W. Activation of Isocyanates and Carbon Dioxide by a Monomeric Aluminium Hydrazide as an Active Lewis Pair. Chemistry 2013; 19:13901-9. [PMID: 24038438 DOI: 10.1002/chem.201302179] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Frank Hengesbach
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstrasse 30, 48149 Münster (Germany)
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28
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Erdmann M, Rösener C, Holtrichter-Rößmann T, Daniliuc CG, Fröhlich R, Uhl W, Würthwein EU, Kehr G, Erker G. Functional group chemistry at intramolecular frustrated Lewis pairs: substituent exchange at the Lewis acid site with 9-BBN. Dalton Trans 2013; 42:709-18. [DOI: 10.1039/c2dt31737k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Mulvey RE, Armstrong DR, Conway B, Crosbie E, Kennedy AR, Robertson SD. Structurally Powered Synergic 2,2,6,6-Tetramethylpiperidine Bimetallics: New Reflections through Lithium-Mediated Ortho Aluminations. Inorg Chem 2011; 50:12241-51. [DOI: 10.1021/ic200562h] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Robert E. Mulvey
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - David R. Armstrong
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - Ben Conway
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - Elaine Crosbie
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - Alan R. Kennedy
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - Stuart D. Robertson
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
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30
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Kennedy AR, Mulvey RE, Oliver DE, Robertson SD. Lithium and aluminium carbamato derivatives of the utility amide 2,2,6,6-tetramethylpiperidide. Dalton Trans 2010; 39:6190-7. [PMID: 20520896 DOI: 10.1039/c0dt00118j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Insertion of CO(2) into the metal-N bond of a series of synthetically important alkali-metal TMP (2,2,6,6-tetramethylpiperidide) complexes has been studied. Determined by X-ray crystallography, the molecular structure of the TMEDA-solvated Li derivative shows a central 8-membered (LiOCO)(2) ring lying in a chair conformation with distorted tetrahedral lithium centres. While trying to obtain crystals of a THF-solvated derivative, a mixed carbonato/carbamato dodecanuclear lithium cluster was formed containing two central (CO(3))(2-) fragments and eight O(2)CTMP ligands with four distinct bonding modes. A bisalkylaluminium carbamato complex has also been prepared via two different methods (CO(2) insertion into a pre-formed Al-N bond and ligand transfer from the corresponding lithium reagent) which adopts a dimeric structure in the solid state.
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Affiliation(s)
- Alan R Kennedy
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, UK
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31
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Martínez G, Chirinos J, Mosquera MEG, Cuenca T, Gómez E. An Unusual N-Bridged (Amido)(hydrido)(phenoxido)aluminium Dinuclear Compound - The Role of Nitrogen Substituents in Determining Nuclearity: A Combined Experimental and Theoretical Study. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901129] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Wrackmeyer B, Klimkina EV, Ackermann T, Milius W. Ferrocenylaluminum-pyridine adducts, lithium tetra(ferrocenyl)alanate, and the molecular structure of tri(ferrocenyl)aluminum-pyridine. Inorganica Chim Acta 2009. [DOI: 10.1016/j.ica.2009.05.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Wrackmeyer B, Klimkina EV, Milius W. 1,1′‐Disubstituted Ferrocenes with Aluminum: Dinuclear and Trinuclear Dialumina[1.1]ferrocenophanes as Pyridine Adducts. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900272] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bernd Wrackmeyer
- Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany, Fax: +49‐921‐552157
| | - Elena V. Klimkina
- Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany, Fax: +49‐921‐552157
| | - Wolfgang Milius
- Anorganische Chemie II, Universität Bayreuth, 95440 Bayreuth, Germany, Fax: +49‐921‐552157
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34
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Bodensteiner M, Vogel U, Timoshkin A, Scheer M. Kontrollierte Oligomerisierung von Lewis-Säure/Base-stabilisierten Phosphanylalanen. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200901064] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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35
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Bodensteiner M, Vogel U, Timoshkin A, Scheer M. Controlled Oligomerization of Lewis Acid/Base-Stabilized Phosphanylalanes. Angew Chem Int Ed Engl 2009; 48:4629-33. [DOI: 10.1002/anie.200901064] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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36
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Tranchemontagne DJ, Mendoza-Cortés JL, O'Keeffe M, Yaghi OM. Secondary building units, nets and bonding in the chemistry of metal–organic frameworks. Chem Soc Rev 2009; 38:1257-83. [PMID: 19384437 DOI: 10.1039/b817735j] [Citation(s) in RCA: 1607] [Impact Index Per Article: 107.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- David J Tranchemontagne
- Center for Reticular Chemistry, Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
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37
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Wrackmeyer B, Klimkina EV, Milius W. A Pyridine-Stabilized Alumoxane Containing Two 1,3,2-Diazaalumina[3]ferrocenophane Units. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200700869] [Citation(s) in RCA: 9] [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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38
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Farwell JD, Hitchcock PB, Lappert MF. Synthesis and characterisation of [AlMen{Si(SiMe3)3}3−n(thf)] (n=1 or 2). J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.08.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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39
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Habereder T, Nöth H, Paine RT. Synthesis and Reactivity of New Bis(tetramethylpiperidino)(phosphanyl)alumanes. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200700415] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Wrackmeyer B, Klimkina EV, Milius W. Novel diaminoaluminum halides and a diaminoaluminum hydride: 1,3,2-Diazaalumina-[3]ferrocenophanes. Polyhedron 2007. [DOI: 10.1016/j.poly.2007.03.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Wrackmeyer B, Klimkina EV, Ackermann T, Milius W. Ferrocenyl(dimethyl)aluminum dimer [(η5-C5H5)Fe(η5-C5H4)AlMe2]2. INORG CHEM COMMUN 2007. [DOI: 10.1016/j.inoche.2007.03.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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43
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Imidazolium formation from the reaction of N-heterocyclic carbene stabilised group 13 trihydride complexes with organic acids. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.07.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Himmel HJ. C−H Activation by AlCl Monomers: Characterization of HAl(Cl)CH3 as the Product of the Photoactivated Reaction Between AlCl and CH4 in a Solid Ar Matrix at 12 K. Eur J Inorg Chem 2003. [DOI: 10.1002/ejic.200300307] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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45
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Kormos BL, Cramer CJ. Pi Bonding and Negative Hyperconjugation in Mono-, Di-, and Triaminoborane, -alane, -gallane, and -indane. Inorg Chem 2003; 42:6691-700. [PMID: 14552621 DOI: 10.1021/ic034584s] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A systematic quantum chemical investigation of mono-, di-, and triaminoborane, -alane, -gallane, and -indane is carried out to determine quantitatively the effects of pi bonding and negative hyperconjugation on structures, energetics, and rotational barriers in these systems. Pi bonding plays a significant role in the aminoborane compounds, but becomes rapidly less significant in the aminoalanes, -gallanes, and -indanes. For each main-group metal X investigated, X-N rotational barriers are found to be essentially equal depending only on the number of remaining in-plane amino groups. The contribution of negative hyperconjugation to reducing rotational barriers, as assessed from natural bond orbital (NBO) delocalization energies, is independent of the pyramidalization of the out-of-plane amino group, and is also dependent only on the number of rotated groups. Optimized tris[bis(trimethylsilyl)amino]-substituted structures of boron, aluminum, gallium, and indium are found to compare quite well with available experimental structural data, and exhibit X-N torsion angles that are independent of the central metal atom.
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Affiliation(s)
- Bethany L Kormos
- Department of Chemistry and Supercomputing Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, USA
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46
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Himmel HJ. Calculated Enthalpies for Dimerisation of Binary, Unsaturated, Main-Group Element Hydrides as a Means to Analyse Their Potential for Multiple Bonding. Eur J Inorg Chem 2003. [DOI: 10.1002/ejic.200200637] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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SCHULZ STEPHAN. Group 13/15 Organometallic Compounds—Synthesis, Structure, Reactivity and Potential Applications. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2003. [DOI: 10.1016/s0065-3055(03)49006-0] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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48
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Synthesis, Structure and Reactivity of Group 13/15 Compounds Containing the Heavier Elements of Group 15, Sb and Bi. GROUP 13 CHEMISTRY I 2002. [DOI: 10.1007/3-540-47808-6_4] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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49
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Korolev AV, Ihara E, Guzei IA, Young VG, Jordan RF. Cationic aluminum alkyl complexes incorporating aminotroponiminate ligands. J Am Chem Soc 2001; 123:8291-309. [PMID: 11516279 DOI: 10.1021/ja010242e] [Citation(s) in RCA: 133] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis, structures, and reactivity of cationic aluminum complexes containing the N,N'-diisopropylaminotroponiminate ligand ((i)Pr(2)-ATI(-)) are described. The reaction of ((i)Pr(2)-ATI)AlR(2) (1a-e,g,h; R = H (a), Me (b), Et (c), Pr (d), (i)Bu (e), Cy (g), CH(2)Ph (h)) with [Ph(3)C][B(C(6)F(5))(4)] yields ((i)()Pr(2)-ATI)AlR(+) species whose fate depends on the properties of the R ligand. 1a and 1b react with 0.5 equiv of [Ph(3)C][B(C(6)F(5))(4)] to produce dinuclear monocationic complexes [([(i)Pr(2)-ATI] AlR)(2)(mu-R)][(C(6)F(5))(4)] (2a,b). The cation of 2b contains two ((i)()Pr(2)-ATI)AlMe(+) units linked by an almost linear Al-Me-Al bridge; 2a is presumed to have an analogous structure. 2b does not react further with [Ph(3)C][B(C(6)F(5))(4)]. However, 1a reacts with 1 equiv of [Ph(3)C][B(C(6)F(5))(4)] to afford ((i Pr(2)-ATI)Al(C(6)F(5))(mu-H)(2)B(C(6)F(5))(2) (3) and other products, presumably via C(6)F(5)(-) transfer and ligand redistribution of a [((i)()Pr(2)-ATI)AlH][(C(6)F(5))(4)] intermediate. 1c-e react with 1 equiv of [Ph(3)C][B(C(6)F(5))(4)] to yield stable base-free [((i)Pr(2)-ATI)AlR][B(C(6)F(5))(4)] complexes (4c-e). 4c crystallizes from chlorobenzene as 4c(ClPh).0.5PhCl, which has been characterized by X-ray crystallography. In the solid state the PhCl ligand of 4c(ClPh) is coordinated by a dative PhCl-Al bond and an ATI/Ph pi-stacking interaction. 1g,h react with [Ph(3)C][B(C(6)F(5))(4)] to yield ((i)Pr(2)-ATI)Al(R)(C(6)F(5)) (5g,h) via C(6)F(5)(-) transfer of [((i)Pr(2)-ATI)AlR][(BC(6)F(5))(4)] intermediates. 1c,h react with B(C(6)F(5))(3) to yield ((i)Pr(2)-ATI)Al(R)(C(6)F(5)) (5c,h) via C(6)F(5)(-) transfer of [((i)Pr(2)-ATI)AlR][RB(C(6)F(5))(3)] intermediates. The reaction of 4c-e with MeCN or acetone yields [((i)Pr(2)-ATI)Al(R)(L)][B(C(6)F(5))(4)] adducts (L = MeCN (8c-e), acetone (9c-e)), which undergo associative intermolecular L exchange. 9c-e undergo slow beta-H transfer to afford the dinuclear dicationic alkoxide complex [(((i)Pr(2)-ATI)Al(mu-O(i)()Pr))(2)][B(C(6)F(5))(4)](2) (10) and the corresponding olefin. 4c-e catalyze the head-to-tail dimerization of tert-butyl acetylene by an insertion/sigma-bond metathesis mechanism involving [((i)Pr(2)-ATI)Al(C=C(t)Bu)][B(C(6)F(5))(4)] (13) and [((i)Pr(2)-ATI)Al(CH=C((t)()Bu)C=C(t)Bu)][B(C(6)F(5))(4)] (14) intermediates. 13 crystallizes as the dinuclear dicationic complex [([(i Pr(2)-ATI]Al(mu-C=C(t)Bu))(2)][B(C(6)F(5))(4)](2).5PhCl from chlorobenzene. 4e catalyzes the polymerization of propylene oxide and 2a catalyzes the polymerization of methyl methacrylate. 4c,e react with ethylene-d(4) by beta-H transfer to yield [((i)Pr(2)-ATI)AlCD(2)CD(2)H][B(C(6)F(5))(4)] initially. Polyethylene is also produced in these reactions by an unidentified active species.
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Affiliation(s)
- A V Korolev
- Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, IL 60637, USA
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