1
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Koptseva TS, Skatova AA, Moskalev MV, Rumyantcev RV, Fedushkin IL. Diversity of transformation of heteroallenes on acenaphthene-1,2-diimine aluminum oxide. Dalton Trans 2024; 53:4643-4651. [PMID: 38357860 DOI: 10.1039/d3dt04333a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
The reactions of oxide [(dpp-bian)Al(μ2-O)2Al(dpp-bian)] (1) (dpp-bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) with phenyl- or cyclohexylisocyanates result in the formation of carbonimidate derivatives [(dpp-bian)Al(μ-O)(μ-RNCO2)Al(dpp-bian)] (R = Ph, 2; Cy, 3). Addition of N,N'-dicyclohexylcarbodiimide to compound 1 leads to the formation of ureate complex [(dpp-bian)Al(μ-O)(μ-(CyN)2CO)Al(dpp-bian)] (4). The reactions of the oxide 1 with pinacolborane and catecholborane afford oxo-bridged hydride [{(dpp-bian)Al(H)}(μ-O){Al(OBpin)(dpp-bian)}] (5) and compound [{(dpp-bian)Al(OBCat)}2(μ-O)] (7), respectively. Insertion of cyclohexylisocyanate into the Al-H bond of compound 5 gives CO insertion product [{(dpp-bian)Al(OC(H)NCy)}(μ-O){Al(OBpin)(dpp-bian)}] (6). New compounds have been characterized by ESR and IR spectroscopy; their molecular structures have been established by single-crystal X-ray analysis. The oxide 1 serves as a catalyst for the hydroboration of heteroallenes (isocyanates, carbodiimides) with pinacolborane.
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Affiliation(s)
- Tatyana S Koptseva
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinina Str. 49, Nizhny Novgorod, 603137, Russian Federation.
| | - Alexandra A Skatova
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinina Str. 49, Nizhny Novgorod, 603137, Russian Federation.
| | - Mikhail V Moskalev
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinina Str. 49, Nizhny Novgorod, 603137, Russian Federation.
| | - Roman V Rumyantcev
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinina Str. 49, Nizhny Novgorod, 603137, Russian Federation.
| | - Igor L Fedushkin
- G. A. Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences, Tropinina Str. 49, Nizhny Novgorod, 603137, Russian Federation.
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2
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Wei B, Wang C, Miao H, Qin Z, Huang M, Xu Y, Xue W, Yang S, Liu C, Bai C, Chen Z. Novel bidentate N-coordinated alkylaluminum complexes: synthesis, characterization, and efficient catalysis for hydrophosphonylation. Dalton Trans 2024; 53:4185-4193. [PMID: 38323430 DOI: 10.1039/d3dt04087a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Five new alkylaluminum complexes with different pyridinyl-substituted imines or cyclohexyl-substituted imines were synthesized and characterized successfully. The aluminum complex [FlCHNCH(CH3)Py]AlMe2(Py = 2-pyridyl) (1) was obtained by reacting 9-[2-pyridyl-CH(CH3)-NCH]Fl (Fl = fluorenyl) (L1) and equimolar AlMe3. The reactions of 9-(2-pyridyl-NCH)Fl (L2) and 9-[2-N(CH3)2-cyclohexyl-NCH]Fl (L3) with equimolar AlMe3 or AlEt3 afforded other alkylaluminum complexes [FlCHNPy]AlMe2(Py = 2-pyridyl) (2), [FlCHNPy]AlEt2 (Py = 2-pyridyl) (3), [FlCHNCyN(CH3)2]AlMe2 (Cy = 2-cyclohexyl) (4) and [FlCHNCyN(CH3)2]AlEt2 (Cy = 2-cyclohexyl) (5). All these complexes (1-5) were characterized using NMR spectroscopy, elemental analysis, and X-ray crystal structure analysis. The catalytic properties of these new alkylaluminum complexes for the hydrophosphonylation of aldimines were examined. Complex 5 showed the best catalytic performance under mild reaction conditions with a low catalyst loading (1 mol%), and 20 different substituents of aldimines were isolated with more than 90% yields.
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Affiliation(s)
- Biao Wei
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Chaoqun Wang
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Hui Miao
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Zhibiao Qin
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Mengna Huang
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Yan Xu
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Wenhui Xue
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Shucheng Yang
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Chenxu Liu
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Cuibing Bai
- Anhui Provincial Joint Key Laboratory for Innovative Drug Research and Industry Integration, School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang 236037, P. R. China.
| | - Zheng Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, China.
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3
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Douglas SP, Faria EN, Mrig S, Zhou Y, Santoni L, Clancy AJ, Knapp CE. Tris(β-ketoiminate) Aluminium(III) Compounds as Aluminium Oxide Precursors. Chempluschem 2023; 88:e202200411. [PMID: 36646521 DOI: 10.1002/cplu.202200411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/22/2022] [Indexed: 12/24/2022]
Abstract
Precursor design is the crucial step in tailoring the deposition profile towards a multitude of functional materials. Most commercially available aluminium oxide precursors require high processing temperatures (>500 °C). Herein, we report the tuning of the decomposition profile (200-350 °C) of a range of octahedrally coordinated tris(β-ketoiminate) aluminium complexes of the type [Al(MeCN(R)CHC=OMe)3 ], by varying the R substituents in the ligands. The complexes are derived from the reaction of trimethylamine alane (TMAA) and a series of N-substituted β-ketoiminate ligands (R-acnacH, R=Me, Et, i Pr, Ph) with varying R-substituents sizes. When the more sterically encumbered ligand (R=Mes) was used, the Al atom became five-coordinate, therefore representing the threshold to octahedral coordination around the metal in these type of compounds, which, consequently, lead to a change of decomposition profile. The resulting compounds have been characterised by NMR spectroscopy, mass spectrometry, elemental analysis and single crystal X-ray diffraction. [Al(MeCN(Me)CHC=OMe)3 ] has been used as a single source precursor for the deposition of Al2 O3 . Thin films were deposited via aerosol assisted chemical vapour deposition (AACVD), with toluene as the solvent, and were analysed using SEM, EDX and XPS.
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Affiliation(s)
- Samuel P Douglas
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Erica N Faria
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Shreya Mrig
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Ye Zhou
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Leonardo Santoni
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Adam J Clancy
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Caroline E Knapp
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
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4
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Nayak DK, Sarkar N, Sampath CM, Sahoo RK, Nembenna S. Organoaluminum Catalyzed Guanylation and Hydroboration Reactions of Carbodiimides. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Deepak Kumar Nayak
- School of Chemical Sciences National Institute of Science Education and Research (NISER), HBNI Bhubaneswar 752 050 India
| | - Nabin Sarkar
- School of Chemical Sciences National Institute of Science Education and Research (NISER), HBNI Bhubaneswar 752 050 India
| | - Chabathula Manoj Sampath
- School of Chemical Sciences National Institute of Science Education and Research (NISER), HBNI Bhubaneswar 752 050 India
| | - Rajata Kumar Sahoo
- School of Chemical Sciences National Institute of Science Education and Research (NISER), HBNI Bhubaneswar 752 050 India
| | - Sharanappa Nembenna
- School of Chemical Sciences National Institute of Science Education and Research (NISER), HBNI Bhubaneswar 752 050 India
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5
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Sarkar N, Sahoo RK, Mukhopadhyay S, Nembenna S. Organoaluminum Cation Catalyzed Selective Hydrosilylation of Carbonyls, Alkenes, and Alkyne. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202101030] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nabin Sarkar
- National Institute of Science Education and Research School of Chemical Sciences SCS NISERbhubaneswar 752050 bhubaneswar INDIA
| | - Rajata Kumar Sahoo
- National Institute of Science Education and Research School of Chemical Sciences SCS NISERbhubaneswar 752050 bhubaneswar INDIA
| | - Sayantan Mukhopadhyay
- National Institute of Science Education and Research School of Chemical Sciences SCS NISERbhubaneswar 752050 bhubaneswar INDIA
| | - Sharanappa Nembenna
- National Institute of Science Education and Research (NISER) School of Chemical Sciences Jatni CampusNISER, BhubaneswarINDIA 752050 Bhubaneswar INDIA
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6
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Shen Q, Xu J, Chen X. π- delocalization in phosphaphthalimide and its ambident reactivity (O/P) toward main-group electrophiles. Dalton Trans 2022; 51:10240-10248. [DOI: 10.1039/d2dt01163h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The report on phosphaphthalimide (1), the phosphorus analogue of the phthalimide anion, dates back to forty years ago. However, the presence of π-delocalization between two-coordinated phosphorus centre and neighbouring carbonyl...
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7
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Koptseva TS, Moskalev MV, Skatova AA, Rumyantcev RV, Fedushkin IL. Reduction of CO 2 with Aluminum Hydrides Supported with Ar-BIAN Radical-Anions (Ar-BIAN = 1,2-Bis(arylimino)acenaphthene). Inorg Chem 2021; 61:206-213. [PMID: 34949085 DOI: 10.1021/acs.inorgchem.1c02731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The reactions of H2AlCl with [(dpp-Bian)Na(Et2O)n] and [(ArBIG-Bian)Na(THF)] produce respective aluminum hydrides supported by radical-anionic 1,2-bis(arylimino)acenaphthene ligands, [(dpp-Bian)AlH2] (1) and [(ArBIG-Bian)AlH2(THF)] (2) (dpp-Bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene); ArBIG-Bian = 1,2-bis[(2,6-dibenzhydryl-4-methylphenyl)imino]acenaphthene). The reaction of 1 with CO2 proceeds with reduction of both C═O bonds and results in diolate [{(dpp-Bian)Al(μ-O2CH2)}2] (3). Complex 2 reacts with CO2 to carbonate [{(ArBIG-Bian)Al(μ-OCH2OCO2)}2] (4) that is a result of the insertion of CO2 into the Al-O bond in diolate species formed initially. Aluminum monohydrides [(dpp-Bian)AlH(X)] (X = Cl, 5; Me, 6) react with CO2 to form respective alumoxanes [{(dpp-Bian)AlX}2(μ-O)] (X = Cl, 7 and X = Me, 8). Compounds 1-4, 7, and 8 have been characterized by ESR and IR spectroscopy, and their molecular structures have been determined by single-crystal X-ray analysis.
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Affiliation(s)
- Tatyana S Koptseva
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina street 49, 603950, Nizhny Novgorod, Russian Federation
| | - Mikhail V Moskalev
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina street 49, 603950, Nizhny Novgorod, Russian Federation
| | - Alexandra A Skatova
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina street 49, 603950, Nizhny Novgorod, Russian Federation
| | - Roman V Rumyantcev
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina street 49, 603950, Nizhny Novgorod, Russian Federation
| | - Igor L Fedushkin
- G.A. Razuvaev Institute of Organometallic Chemistry of Russian Academy of Sciences, Tropinina street 49, 603950, Nizhny Novgorod, Russian Federation
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8
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Roy MMD, Omaña AA, Wilson ASS, Hill MS, Aldridge S, Rivard E. Molecular Main Group Metal Hydrides. Chem Rev 2021; 121:12784-12965. [PMID: 34450005 DOI: 10.1021/acs.chemrev.1c00278] [Citation(s) in RCA: 122] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This review serves to document advances in the synthesis, versatile bonding, and reactivity of molecular main group metal hydrides within Groups 1, 2, and 12-16. Particular attention will be given to the emerging use of said hydrides in the rapidly expanding field of Main Group element-mediated catalysis. While this review is comprehensive in nature, focus will be given to research appearing in the open literature since 2001.
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Affiliation(s)
- Matthew M D Roy
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Alvaro A Omaña
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada
| | - Andrew S S Wilson
- Department of Chemistry, University of Bath, Avon BA2 7AY, United Kingdom
| | - Michael S Hill
- Department of Chemistry, University of Bath, Avon BA2 7AY, United Kingdom
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada
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9
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Moskalev MV, Sokolov VG, Koptseva TS, Skatova AA, Bazanov AA, Baranov EV, Fedushkin IL. Reactivity of aluminum hydrides supported with sterically hindered acenaphthene-1,2-diimines towards CO2. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121972] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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10
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Wang X, Meng Y, Hou L, Wang Y, Wang W. Systematic and efficient synthesis of β-diketiminato aluminum halides and their structural characterization. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152942] [Citation(s) in RCA: 1] [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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11
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Rösch A, Herzog CM, Schreiner SHF, Görls H, Kretschmer R. Ditopic bis( N, N', N'-substituted 1,2-ethanediamine) ligands: synthesis and coordination chemistry. Dalton Trans 2020; 49:13818-13828. [PMID: 33001083 DOI: 10.1039/d0dt03124k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The synthesis of two different types of bis(N,N',N'-substituted 1,2-ethanediamine)s, bridged either through the secondary (type 1) or tertiary (type 2) amine groups is reported. Selected protio-ligands have been applied in subsequent metallation reactions using aluminium, magnesium, tin, and zinc sources allowing to isolate five mononuclear and eight dinuclear complexes. All complexes have been fully characterized and their solid-state structures have been studied by means of single-crystal X-ray diffraction analysis. Nine of the 13 complexes carry reactive alkyl, amide or hydride groups, which indicates their potential as catalysts or supports for (transition) metals.
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Affiliation(s)
- Andreas Rösch
- Institute of Inorganic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Christoph M Herzog
- Institute of Inorganic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Simon H F Schreiner
- Institute of Inorganic Chemistry, University of Regensburg, Universitätsstraße 31, 93053 Regensburg, Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Robert Kretschmer
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany and Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena Philosophenweg 7, 07743 Jena, Germany.
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12
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Kretsch J, Kreyenschmidt A, Schillmöller T, Herbst-Irmer R, Stalke D. Mixed Low-Valent Alanes from the Bis(4-methyl-benzoxazol-2-yl)methanide Ligand. Inorg Chem 2020; 59:13690-13699. [PMID: 32897060 DOI: 10.1021/acs.inorgchem.0c02066] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Within this work, an aluminum dihydride complex ([(4-MeBox2CH)AlH2]) (1) based on the bis(4-methyl-benzoxazol-2-yl)methanide ligand was synthesized and characterized by spectroscopic methods (NMR, ATR-IR, and fluorescence), DSC (differential scanning calorimetry), mass spectrometry (LIFDI), and single crystal X-ray diffraction. The reactivity of alane 1 was investigated toward the reducing agents [DippNacNacAlI] and [(MesNacNacMgI)2], which gave the dialane compounds [(4-MeBox2CH)HAlII-AlIIH(DippNacNac)] (2) and [{(4-MeBox2CH)AlIIH}2] (4a), respectively. Furthermore, dialuminoxanes [{(4-MeBox2CH)AlH}2(μ-O)] (4b) and [({(MesNacNac)Mg}2(μ-H)){H3AlII-AlIIH(4-MeBox2CH)}] (4c) were isolated as byproducts, with 4b co-crystallizing with 4a. The hydricity of both hydrides in the mixed-ligated dialane 2 were examined by a reaction with 1 equiv of trityl borate ([Ph3C][B(C6F5)4]), which resulted in [(4-MeBox2CH)HAlII-AlII(DippNacNac)][B(C6F5)4] (3). Due to the formation of 4b, complex 1 was reacted with 0.5 equiv of water, which causes the likely synthesis of insoluble oligomeric alumoxanes. To prevent this reaction and support the formation of well-defined dialumoxanes, 1 was initially converted to [(4-MeBox2CH)(DippO)AlH] (5) by the deprotonation of 2,6-diisopropylphenol (propofol). This sterically encumbered compound 5 was subsequently reacted with 0.5 equiv of water, which resulted in defined molecules of [{(4-MeBox2CH)(DippO)Al}2(μ-O)] (6). All these compounds exemplify the versatility of the 4-MeBox2CH ligand in low-valent aluminum chemistry.
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Affiliation(s)
- Johannes Kretsch
- Institute of Inorganic Chemistry, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Anne Kreyenschmidt
- Institute of Inorganic Chemistry, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Timo Schillmöller
- Institute of Inorganic Chemistry, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Regine Herbst-Irmer
- Institute of Inorganic Chemistry, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institute of Inorganic Chemistry, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
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13
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Peddarao T, Sarkar N, Nembenna S. Mono- and Bimetallic Aluminum Alkyl, Alkoxide, Halide and Hydride Complexes of a Bulky Conjugated Bis-Guanidinate(CBG) Ligand and Aluminum Alkyls as Precatalysts for Carbonyl Hydroboration. Inorg Chem 2020; 59:4693-4702. [PMID: 32157882 DOI: 10.1021/acs.inorgchem.9b03778] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Tetra-aryl-substituted symmetrical conjugated bis-guanidine (CBG) ligands such as L1-3 (3H) [L(3H) = {(ArHN)(ArHN)C═N-C═NAr(NHAr)}; Ar = 2,6-Me2-C6H3 (L1(3H)), 2,6-Et2-C6H3 (L2(3H)), and 2,6-iPr2-C6H3 (L3(3H))] have been employed to synthesize a series of four- and six-membered aluminum heterocycles (1-8) for the first time. Generally, aluminum complexes bearing N,N'- chelated guanidinate and β-diketiminate/dipyrromethene ligand systems form four- and six-membered heterocycles, respectively. However, the conjugated bis-guanidine ligand has the capability of forming both four- and six-membered heterocycles possessing multimetal centers within the same molecule; this is due to the presence of three acidic protons, which can be easily deprotonated (at least two protons) upon treatment with metal reagents. Both mono- and dinuclear aluminum alkyls and mononuclear aluminum alkoxide, halide, and hydride complexes have been structurally characterized. Further, we have demonstrated the potential of mononuclear, six-membered CBG aluminum dialkyls in catalytic hydroboration of a broad range of aldehydes and ketones with pinacolborane (HBpin).
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Affiliation(s)
- Thota Peddarao
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar 752 050, India
| | - Nabin Sarkar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar 752 050, India
| | - Sharanappa Nembenna
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar 752 050, India
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14
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Dehmel M, Vass V, Prock L, Görls H, Kretschmer R. Synthesis and Coordination Chemistry of 3,4-Ethylene-Bridged 1,1,2,5-Tetrasubstituted Biguanides. Inorg Chem 2020; 59:2733-2746. [PMID: 32048512 DOI: 10.1021/acs.inorgchem.9b03093] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of 3,4-ethylene-bridged 1,1,2,5-tetrasubstituted biguanides is reported, which are accessible by three alternative routes. Exemplary molecular structures of the ligand and an observed side product have been elucidated by X-ray diffraction analysis. Mono- and dinuclear complexes of the biguanide in both its neutral and monoanionic forms were obtained, including examples of aluminum, copper, magnesium, potassium, tin, and zinc, indicating a versatile coordination behavior, as evidenced by means of single-crystal X-ray diffraction analysis.
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Affiliation(s)
- Maximilian Dehmel
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Valentin Vass
- University of Regensburg, Institute of Inorganic Chemistry, Universitätsstrasse 31, 93053 Regensburg, Germany
| | - Lukas Prock
- University of Regensburg, Institute of Inorganic Chemistry, Universitätsstrasse 31, 93053 Regensburg, Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Robert Kretschmer
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena Philosophenweg 7, 07743 Jena, Germany
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15
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Anker MD, Coles MP. Aluminium‐Mediated Carbon Dioxide Reduction by an Isolated Monoalumoxane Anion. Angew Chem Int Ed Engl 2019; 58:18261-18265. [DOI: 10.1002/anie.201911550] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Indexed: 11/07/2022]
Affiliation(s)
- Mathew D. Anker
- School of Chemical and Physical SciencesVictoria University of Wellington PO Box 600 Wellington 6012 New Zealand
| | - Martyn P. Coles
- School of Chemical and Physical SciencesVictoria University of Wellington PO Box 600 Wellington 6012 New Zealand
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16
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Desat ME, Kretschmer R. Dinuclear Aluminum Halide Complexes Based on Bis(β-diketiminate) Ligands: Synthesis, Structures, and Electrochemical Characterization. Inorg Chem 2019; 58:16302-16311. [PMID: 31729867 DOI: 10.1021/acs.inorgchem.9b02868] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Twenty-three dinuclear aluminum halide complexes based on bis(β-diketiminate) ligands with various flexible and rigid bridging groups have been synthesized and fully characterized by NMR and IR spectroscopy, cyclic voltammetry, and elemental analysis. In addition, nine complexes were structurally characterized by means of single-crystal X-ray diffraction. Attempts to reduce the dinuclear species using C8K remained unsuccessful, but the reduction potentials investigated by cyclic voltammetry indicate the principle feasibility.
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Affiliation(s)
- Marcella E Desat
- Inorganic Chemistry of Catalysis, Institute of Inorganic and Analytical Chemistry (IAAC) , Friedrich Schiller University Jena , Humboldtstraße 8 , 07743 Jena , Germany
| | - Robert Kretschmer
- Inorganic Chemistry of Catalysis, Institute of Inorganic and Analytical Chemistry (IAAC) , Friedrich Schiller University Jena , Humboldtstraße 8 , 07743 Jena , Germany.,Jena Center for Soft Matter (JCSM) , Friedrich Schiller University Jena , Philosophenweg 7 , 07743 Jena , Germany
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17
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Aluminium‐Mediated Carbon Dioxide Reduction by an Isolated Monoalumoxane Anion. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911550] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Characterization and Photophysical Properties of a Luminescent Aluminum Hydride Complex Supported by a β-Diketiminate Ligand. INORGANICS 2019. [DOI: 10.3390/inorganics7080100] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Aluminum hydrides are versatile compounds utilized as reducing agents, precursors of aluminum complexes, and as catalysts for polymerization reactions. However, their photophysical properties have been overlooked, although several luminescent aluminum complexes have been utilized conventionally for emitting layers in modern light-emitting devices. Herein, we report the synthesis and photophysical properties of a luminescent β-diketiminate dihydride complex through the reaction between lithium aluminum hydride and the corresponding ligand. The obtained compound exhibits crystallization-induced emission (CIE) properties at room temperature and long-lifetime phosphorescence at 80 K. Our experimental and theoretical investigations suggest that low-energy molecular vibration could play an important role in the realization of the CIE property.
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19
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Mondol R, Otten E. Aluminum Complexes with Redox-Active Formazanate Ligand: Synthesis, Characterization, and Reduction Chemistry. Inorg Chem 2019; 58:6344-6355. [PMID: 30978008 PMCID: PMC6506801 DOI: 10.1021/acs.inorgchem.9b00553] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The
synthesis of aluminum complexes with redox-active formazanate
ligands is described. Salt metathesis using AlCl3 was shown
to form a five-coordinate complex with two formazanate ligands, whereas
organometallic aluminum starting materials yield tetrahedral mono(formazanate)
aluminum compounds. The aluminum diphenyl derivative was successfully
converted to the iodide complex (formazanate)AlI2, and
a comparison of spectroscopic/structural data for these new complexes
is provided. Characterization by cyclic voltammetry is supplemented
by chemical reduction to demonstrate that ligand-based redox reactions
are accessible in these compounds. The possibility to obtain a formazanate
aluminum(I) carbenoid species by two-electron reduction was examined
by experimental and computational studies, which highlight the potential
impact of the nitrogen-rich formazanate ligand on the electronic structure
of compounds with this ligand. The synthesis of a series
of aluminum complexes with redox-active
formazanate ligands is described and crystallographic, spectroscopic,
and voltammetric characterization data are presented. The reduction
chemistry of these newly synthesized complexes has been explored and
the results are supported by a computational (DFT) study.
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Affiliation(s)
- Ranajit Mondol
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Edwin Otten
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
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20
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Slaughter J, Molyneux SA, Peel AJ, Wheatley AEH. Action of Organoaluminum Reagents on Esters: Alkene Production and the Degradation of Synthetic Lubricants. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan Slaughter
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Samuel A. Molyneux
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Andrew J. Peel
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Andrew E. H. Wheatley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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21
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Anker MD, Colebatch AL, Iversen KJ, Wilson DJD, Dutton JL, García L, Hill MS, Liptrot DJ, Mahon MF. Alane-Centered Ring Expansion of N-Heterocyclic Carbenes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00056] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mathew D. Anker
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - Annie L. Colebatch
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - Kalon J. Iversen
- Department
of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - David J. D. Wilson
- Department
of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Jason L. Dutton
- Department
of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Lucía García
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - Michael S. Hill
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - David J. Liptrot
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
| | - Mary F. Mahon
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, United Kingdom
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22
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Li B, Kundu S, Stückl AC, Zhu H, Keil H, Herbst-Irmer R, Stalke D, Schwederski B, Kaim W, Andrada DM, Frenking G, Roesky HW. A Stable Neutral Radical in the Coordination Sphere of Aluminum. Angew Chem Int Ed Engl 2016; 56:397-400. [DOI: 10.1002/anie.201609101] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Bin Li
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
- State Key Laboratory of Physical Chemistry of Solid Surface, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P.R. China
| | - Subrata Kundu
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - A. Claudia Stückl
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Hongping Zhu
- State Key Laboratory of Physical Chemistry of Solid Surface, National Engineering Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P.R. China
| | - Helena Keil
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Regine Herbst-Irmer
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Brigitte Schwederski
- Universität Stuttgart; Institut für Anorganische Chemie; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Kaim
- Universität Stuttgart; Institut für Anorganische Chemie; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Diego M. Andrada
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 35032 Marburg Germany
| | - Gernot Frenking
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 35032 Marburg Germany
- Donostia International Physics Center (DIPC); P.K. 1072 20080 Donostia Euskadi Spain
| | - Herbert W. Roesky
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
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23
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Li B, Kundu S, Stückl AC, Zhu H, Keil H, Herbst‐Irmer R, Stalke D, Schwederski B, Kaim W, Andrada DM, Frenking G, Roesky HW. Ein stabiles neutrales Radikal in der Koordinationssphäre des Aluminiums. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609101] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Bin Li
- Institut für Anorganische Chemie Universität Göttingen Tammannstraße 4 37077 Göttingen Deutschland
- State Key Laboratory of Physical Chemistry of Solid Surface, National Engineering Laboratory for Green Chemical, Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Volksrepublik China
| | - Subrata Kundu
- Institut für Anorganische Chemie Universität Göttingen Tammannstraße 4 37077 Göttingen Deutschland
| | - A. Claudia Stückl
- Institut für Anorganische Chemie Universität Göttingen Tammannstraße 4 37077 Göttingen Deutschland
| | - Hongping Zhu
- State Key Laboratory of Physical Chemistry of Solid Surface, National Engineering Laboratory for Green Chemical, Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 Volksrepublik China
| | - Helena Keil
- Institut für Anorganische Chemie Universität Göttingen Tammannstraße 4 37077 Göttingen Deutschland
| | - Regine Herbst‐Irmer
- Institut für Anorganische Chemie Universität Göttingen Tammannstraße 4 37077 Göttingen Deutschland
| | - Dietmar Stalke
- Institut für Anorganische Chemie Universität Göttingen Tammannstraße 4 37077 Göttingen Deutschland
| | - Brigitte Schwederski
- Universität Stuttgart Institut für Anorganische Chemie Pfaffenwaldring 55 70569 Stuttgart Deutschland
| | - Wolfgang Kaim
- Universität Stuttgart Institut für Anorganische Chemie Pfaffenwaldring 55 70569 Stuttgart Deutschland
| | - Diego M. Andrada
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 35032 Marburg Deutschland
| | - Gernot Frenking
- Fachbereich Chemie Philipps-Universität Marburg Hans-Meerwein-Straße 35032 Marburg Deutschland
- Donostia International Physics Center (DIPC) P.K. 1072 20080 Donostia Euskadi Spanien
| | - Herbert W. Roesky
- Institut für Anorganische Chemie Universität Göttingen Tammannstraße 4 37077 Göttingen Deutschland
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24
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Ermert DM, Gordon JB, Abboud KA, Murray LJ. Synthesis of Trinuclear Tin(II), Germanium(II), and Aluminum(III) Cyclophane Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David M. Ermert
- Center
for Catalysis, Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Jesse B. Gordon
- Center
for Catalysis, Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Khalil A. Abboud
- Center
for Catalysis, Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Leslie J. Murray
- Center
for Catalysis, Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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25
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Gianopoulos CG, Kumar N, Zhao Y, Jia L, Kirschbaum K, Mason MR. Aluminum alkoxide, amide and halide complexes supported by a bulky dipyrromethene ligand: synthesis, characterization, and preliminary ε-caprolactone polymerization activity. Dalton Trans 2016; 45:13787-97. [PMID: 27484717 DOI: 10.1039/c6dt02449a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aluminum halide, alkoxide and amide complexes 2-6 of the form (N,N)AlX2-nYn (n = 0, 1 and (N,N) = 1,9-dimesityl-5-phenyldipyrromethene (1)) were synthesized and characterized by NMR spectroscopy and X-ray crystallography. The in situ generated lithium salt of dipyrromethene 1 was reacted with AlX3 to afford aluminum halide complexes (N,N)AlX2 (X = Cl (2), I (3)) which were isolated as dichroic crystals. Salt metathesis reactions were employed to produce alkoxide complexes (N,N)Al(Cl)(O(t)Bu) (4) and (N,N)Al(O(t)Bu)2 (5) from compound 2. The dimethylamide complex (N,N)Al(NMe2)2 (6) was prepared by reaction of dipyrromethene 1 with [Al(NMe2)3]2. Crystallographic data revealed that the dipyrromethene is non-planar when bulky coligands are present as in compounds 3-6, while in the dichloride complex 2 the dipyrromethene is planar. Halide complexes 2 and 3 reacted with adventitious moisture in toluene to afford crystalline acid-base adducts (N,N)H·HX, (X = Cl (7), I (8)), which adopted structures reminiscent of anion receptors. Alkoxide and dimethylamide complexes 5 and 6 were also applied as precatalysts for the ring-opening polymerization of ε-caprolactone and preliminary results are reported.
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Affiliation(s)
- Christopher G Gianopoulos
- Department of Chemistry, School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606-3390, USA.
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26
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Stelzer AC, Hrobárik P, Braun T, Kaupp M, Braun-Cula B. Completing the Heterocubane Family [Cp*AlE]4 (E = O, S, Se, and Te) by Selective Oxygenation and Sulfuration of [Cp*Al]4: Density Functional Theory Calculations of [Cp*AlE]4 and Reactivity of [Cp*AlO]4 toward Hydrolysis. Inorg Chem 2016; 55:4915-23. [DOI: 10.1021/acs.inorgchem.6b00462] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adrian C. Stelzer
- Department
of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße
2, 12489 Berlin, Germany
| | - Peter Hrobárik
- Institut
für Chemie, Technische Universität Berlin, Straße des
17. Juni 135, 10623 Berlin, Germany
| | - Thomas Braun
- Department
of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße
2, 12489 Berlin, Germany
| | - Martin Kaupp
- Institut
für Chemie, Technische Universität Berlin, Straße des
17. Juni 135, 10623 Berlin, Germany
| | - Beatrice Braun-Cula
- Department
of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße
2, 12489 Berlin, Germany
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27
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Moskalev MV, Lukoyanov AN, Baranov EV, Fedushkin IL. Unexpected reactivity of an alkylaluminum complex of a non-innocent 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene ligand (dpp-bian). Dalton Trans 2016; 45:15872-15878. [DOI: 10.1039/c6dt01750a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The non-innocence of the bis-amido dpp-bian ligand has been documented by the reactions of compound 1 with acidic substrates, e.g. water.
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Affiliation(s)
- M. V. Moskalev
- G.A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russian Federation
| | - A. N. Lukoyanov
- G.A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russian Federation
| | - E. V. Baranov
- G.A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russian Federation
| | - I. L. Fedushkin
- G.A. Razuvaev Institute of Organometallic Chemistry
- Russian Academy of Sciences
- 603137 Nizhny Novgorod
- Russian Federation
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28
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Dauer DR, Flügge M, Herbst-Irmer R, Stalke D. Group 13 metal complexes containing the bis-(4-methylbenzoxazol-2-yl)-methanide ligand. Dalton Trans 2016; 45:6149-58. [DOI: 10.1039/c5dt03913d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
On the basis of the deprotonated bis-(4-methylbenzoxazol-2-yl)-methane ligand 1 a series of group 13 metal complexes was synthesised and fully characterised. A detailed comparison of solid state structures demonstrates clearly the similarity of methanide and the omnipresent nacnac ligand.
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Affiliation(s)
- David-R. Dauer
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Melchior Flügge
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Regine Herbst-Irmer
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie
- Georg-August-Universität Göttingen
- 37077 Göttingen
- Germany
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29
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Franz D, Inoue S. Advances in the development of complexes that contain a group 13 element chalcogen multiple bond. Dalton Trans 2016; 45:9385-97. [DOI: 10.1039/c6dt01413e] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The advances in the synthesis and isolation of complexes that contain a group 13 element chalcogen multiple bond are accounted for.
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Affiliation(s)
- Daniel Franz
- Institut für Siliciumchemie and Catalysis Research Center
- Technische Universität München
- 85748 Garching
- Germany
| | - Shigeyoshi Inoue
- Institut für Siliciumchemie and Catalysis Research Center
- Technische Universität München
- 85748 Garching
- Germany
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30
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Sarish SP, Samuel PP, Roesky HW, Schulzke C, Nijesh K, De S, Parameswaran P. Multiple Cycloaddition Reactions of Ketones with a β-Diketiminate Al Compound. Chemistry 2015; 21:19041-7. [PMID: 26593152 DOI: 10.1002/chem.201503137] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Indexed: 11/09/2022]
Abstract
A β-diketiminate Al compound (1) with an exocyclic double bond reacts with two equivalents each of benzophenone and 2-benzoylpyridine in a [4+2] cycloaddition to generate bicyclic and tricyclic compounds 2 and 3, respectively. Compound 2 consists of six- and eight-membered aluminium rings, whereas 3 has two five- and one eight-membered ring. Compounds 2 and 3 were characterized by a number of analytical tools including single-crystal X-ray diffraction. The quantum mechanical calculations suggest that the dissociation of the solvent molecule from 1 would lead to an active species 1A having two 1,4-dipolar 4π electron moieties, in which the electrophilic site is the Al atom and the nucleophilic positions are polarized exocyclic and endocyclic C=C π bonds. The detailed mechanistic study shows that the dipolarophiles, benzophenone, and 2-benzoylpyridine undergo double cycloaddition with two 1,4-dipolar 4π electron moieties of 1A. Herein, the addition of one molecule of the dipolarophile promotes the addition of the second one.
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Affiliation(s)
| | - Prinson P Samuel
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen (Germany)
| | - Herbert W Roesky
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen (Germany).
| | - Carola Schulzke
- Ernst-Moritz-Arndt-Universität, Institut für Biochemie, Arbeitskreis Bioanorganische Chemie, Felix-Hausdorff-Strasse 4, 17487 Greifswald (Germany).
| | - Karikkeeriyil Nijesh
- Department of Chemistry, National Institute of Technology Calicut, NIT Campus P.O., Kozhikhode 673 601 Kerala (India)
| | - Susmita De
- Department of Chemistry, National Institute of Technology Calicut, NIT Campus P.O., Kozhikhode 673 601 Kerala (India)
| | - Pattiyil Parameswaran
- Department of Chemistry, National Institute of Technology Calicut, NIT Campus P.O., Kozhikhode 673 601 Kerala (India).
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31
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Altman AB, Pemmaraju CD, Camp C, Arnold J, Minasian SG, Prendergast D, Shuh DK, Tyliszczak T. Theory and X-ray Absorption Spectroscopy for Aluminum Coordination Complexes – Al K-Edge Studies of Charge and Bonding in (BDI)Al, (BDI)AlR2, and (BDI)AlX2 Complexes. J Am Chem Soc 2015; 137:10304-16. [PMID: 26258886 DOI: 10.1021/jacs.5b05854] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alison B. Altman
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | | | - Clément Camp
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - John Arnold
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
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32
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Li B, Zhang C, Yang Y, Zhu H, Roesky HW. Synthesis and Characterization of Heterobimetallic Al–O–Cu Complexes toward Models for Heterogeneous Catalysts on Metal Oxide Surfaces. Inorg Chem 2015; 54:6641-6. [DOI: 10.1021/acs.inorgchem.5b00990] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bin Li
- State Key Laboratory of Physical Chemistry
of Solid Surfaces, National Engineering Laboratory for Green Chemical
Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical
Engineering, Xiamen University, Xiamen 361005, China
| | - Chunyan Zhang
- State Key Laboratory of Physical Chemistry
of Solid Surfaces, National Engineering Laboratory for Green Chemical
Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical
Engineering, Xiamen University, Xiamen 361005, China
| | - Ying Yang
- School of Chemistry and Chemical Engineering
Centre for Environment and Water Resource, Central South University, Changsha 410083, China
| | - Hongping Zhu
- State Key Laboratory of Physical Chemistry
of Solid Surfaces, National Engineering Laboratory for Green Chemical
Productions of Alcohols-Ethers-Esters, College of Chemistry and Chemical
Engineering, Xiamen University, Xiamen 361005, China
| | - Herbert W. Roesky
- Institut
für Anorganische Chemie, Georg-August-Universität, Tammannstraße 4, 37077 Göttingen, Germany
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33
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Wei Y, Wang S, Zhou S, Feng Z, Guo L, Zhu X, Mu X, Yao F. Aluminum Alkyl Complexes Supported by Bidentate N,N Ligands: Synthesis, Structure, and Catalytic Activity for Guanylation of Amines. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00101] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yun Wei
- Laboratory
of Functional Molecular Solids, Ministry of Education, Anhui Laboratory
of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Shaowu Wang
- Laboratory
of Functional Molecular Solids, Ministry of Education, Anhui Laboratory
of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
| | - Shuangliu Zhou
- Laboratory
of Functional Molecular Solids, Ministry of Education, Anhui Laboratory
of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Zhijun Feng
- Laboratory
of Functional Molecular Solids, Ministry of Education, Anhui Laboratory
of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Liping Guo
- Laboratory
of Functional Molecular Solids, Ministry of Education, Anhui Laboratory
of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Xiancui Zhu
- Laboratory
of Functional Molecular Solids, Ministry of Education, Anhui Laboratory
of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Xiaolong Mu
- Laboratory
of Functional Molecular Solids, Ministry of Education, Anhui Laboratory
of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
| | - Fangshi Yao
- Laboratory
of Functional Molecular Solids, Ministry of Education, Anhui Laboratory
of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241000, People’s Republic of China
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34
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García-Ríos J, Hernández-Campos RF, Rascón-Cruz F, Moreno-Martínez VA, Huerta-Lavorie R, Velázquez-Carmona MÁ, Cea-Olivares R, Martínez-Otero D, Jancik V. Homo- and heteroalumoxane silicates. RSC Adv 2015. [DOI: 10.1039/c5ra18481a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Homo- or hetero alumoxanesilicates or bridged M–OH–M hydroxidesilicates with unusual or unprecedented inorganic cores have been obtained in reactions between 1 and nBuLi, AlMe3, GaMe3 or ZnMe2. The aluminum derivatives serve as models for MAO.
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Affiliation(s)
- Jessica García-Ríos
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM
- 50200 Toluca
- Mexico
- Universidad del Valle de México
- Campus Toluca
| | - René Francisco Hernández-Campos
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM
- 50200 Toluca
- Mexico
- Universidad del Valle de México
- Campus Toluca
| | - Fernando Rascón-Cruz
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior s/n
- Ciudad Universitaria
- Col. Universidad Nacional Autónoma de México C.U
| | | | - Raúl Huerta-Lavorie
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior s/n
- Ciudad Universitaria
- Col. Universidad Nacional Autónoma de México C.U
| | | | - Raymundo Cea-Olivares
- Instituto de Química
- Universidad Nacional Autónoma de México
- Circuito Exterior s/n
- Ciudad Universitaria
- Col. Universidad Nacional Autónoma de México C.U
| | - Diego Martínez-Otero
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM
- 50200 Toluca
- Mexico
| | - Vojtech Jancik
- Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM
- 50200 Toluca
- Mexico
- Instituto de Química
- Universidad Nacional Autónoma de México
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35
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Czympiel L, Pfrommer J, Tyrra W, Schäfer M, Mathur S. Ligand-Modulated Chemical and Structural Implications in Four-, Five-, and Six-fold Coordinated Aluminum Heteroaryl Alkenolates. Inorg Chem 2014; 54:25-37. [DOI: 10.1021/ic502549m] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lisa Czympiel
- Department of Chemistry, Institute of Inorganic Chemistry and ‡Department of
Chemistry, Institute of Organic Chemistry, University of Cologne, 50939 Cologne, Germany
| | - Johannes Pfrommer
- Department of Chemistry, Institute of Inorganic Chemistry and ‡Department of
Chemistry, Institute of Organic Chemistry, University of Cologne, 50939 Cologne, Germany
| | - Wieland Tyrra
- Department of Chemistry, Institute of Inorganic Chemistry and ‡Department of
Chemistry, Institute of Organic Chemistry, University of Cologne, 50939 Cologne, Germany
| | - Mathias Schäfer
- Department of Chemistry, Institute of Inorganic Chemistry and ‡Department of
Chemistry, Institute of Organic Chemistry, University of Cologne, 50939 Cologne, Germany
| | - Sanjay Mathur
- Department of Chemistry, Institute of Inorganic Chemistry and ‡Department of
Chemistry, Institute of Organic Chemistry, University of Cologne, 50939 Cologne, Germany
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36
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Gianopoulos CG, Kirschbaum K, Mason MR. Mono- and Bimetallic Aluminum Alkyl, Aryl, and Hydride Complexes of a Bulky Dipyrromethene Ligand. Organometallics 2014. [DOI: 10.1021/om500730g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Christopher G. Gianopoulos
- Department
of Chemistry,
School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606-3390, United States
| | - Kristin Kirschbaum
- Department
of Chemistry,
School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606-3390, United States
| | - Mark R. Mason
- Department
of Chemistry,
School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606-3390, United States
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37
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Romain C, Fliedel C, Bellemin-Laponnaz S, Dagorne S. NHC Bis-Phenolate Aluminum Chelates: Synthesis, Structure, and Use in Lactide and Trimethylene Carbonate Polymerization. Organometallics 2014. [DOI: 10.1021/om5004557] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Charles Romain
- Institut de Chimie
de Strasbourg, CNRS UMR
7177, Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Christophe Fliedel
- Institut de Chimie
de Strasbourg, CNRS UMR
7177, Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Stéphane Bellemin-Laponnaz
- Institut de Physique et Chimie
des Matériaux
de Strasbourg, CNRS UMR 7504, Université de Strasbourg, 23 rue
du Loess, BP 43, F-67034 Strasbourg Cedex 2, France
- Université de Strasbourg Institute for Advanced Study (USIAS), 5 allée du Général Rouvillois, 67083 Strasbourg, France
| | - Samuel Dagorne
- Institut de Chimie
de Strasbourg, CNRS UMR
7177, Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
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38
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Zhao XY, Zhu CB, Li HP, Yang Y, Roesky HW. Synthesis and Characterization of Copper(I) Halide Complexes withN-(2, 6-Diisopropylphenyl)-N′-benzoylthiourea: Monomeric, Dimeric, and Cage Structures. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400079] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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39
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Cole BE, Wolbach JP, Dougherty WG, Piro NA, Kassel WS, Graves CR. Synthesis and Characterization of Aluminum-α-diimine Complexes over Multiple Redox States. Inorg Chem 2014; 53:3899-906. [DOI: 10.1021/ic5003989] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bren E. Cole
- Department of Chemistry & Biochemistry, Albright College, 13th & Bern Street, Reading, Pennsylvania 19612, United States
| | - Jeffrey P. Wolbach
- Department of Chemistry & Biochemistry, Albright College, 13th & Bern Street, Reading, Pennsylvania 19612, United States
| | - William G. Dougherty
- Department of Chemistry, Villanova University, 800 Lancaster Avenue, Villanova, Pennsylvania 19085, United States
| | - Nicholas A. Piro
- Department of Chemistry, Villanova University, 800 Lancaster Avenue, Villanova, Pennsylvania 19085, United States
| | - W. Scott Kassel
- Department of Chemistry, Villanova University, 800 Lancaster Avenue, Villanova, Pennsylvania 19085, United States
| | - Christopher R. Graves
- Department of Chemistry & Biochemistry, Albright College, 13th & Bern Street, Reading, Pennsylvania 19612, United States
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40
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Hsu SY, Hu CH, Tu CY, Lin CH, Chen RY, Datta A, Huang JH. Aluminum Compounds Containing Pyrrole-Imine Ligand Systems - Synthesis, Characterization, Structure Elucidation, Ring-Opening Polymerization, and Catalytic Meerwein-Ponndorf-Verley Reaction. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201400082] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Franz D, Irran E, Inoue S. Synthesis, characterization and reactivity of an imidazolin-2-iminato aluminium dihydride. Dalton Trans 2014; 43:4451-61. [DOI: 10.1039/c3dt52637b] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Yow S, Nako AE, Neveu L, White AJP, Crimmin MR. A Highly Chemoselective, Zr-Catalyzed C–O Bond Functionalization of Benzofuran. Organometallics 2013. [DOI: 10.1021/om4008295] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Shuhui Yow
- Department
of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
| | - Adi E. Nako
- Department
of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
| | - Léonard Neveu
- Department
of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
| | - Andrew J. P. White
- Department
of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
| | - Mark R. Crimmin
- Department
of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom
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43
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Yang Z, Hao P, Liu Z, Ma X, Roesky HW, Yang Y, Li J. Synthesis and Structural Characterization of Compounds Containing the Al-O-Al Motif. Z Anorg Allg Chem 2013. [DOI: 10.1002/zaac.201300386] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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44
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45
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Yow S, Gates SJ, White AJP, Crimmin MR. Zirconocene Dichloride Catalyzed Hydrodefluorination of C sp 2F bonds. Angew Chem Int Ed Engl 2012; 51:12559-63. [DOI: 10.1002/anie.201207036] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 09/24/2012] [Indexed: 11/12/2022]
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46
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Yow S, Gates SJ, White AJP, Crimmin MR. Zirconocene Dichloride Catalyzed Hydrodefluorination of C sp 2F bonds. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201207036] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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47
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Xie L, Hu H, Cui C. Cyclopropanation and Isomerization Reactions of β-Diketiminato Boron Complexes. Organometallics 2012. [DOI: 10.1021/om300337r] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liang Xie
- State Key
Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, People’s
Republic of China
| | - Hongfan Hu
- State Key
Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, People’s
Republic of China
| | - Chunming Cui
- State Key
Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, People’s
Republic of China
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48
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Simple Trivalent Organoaluminum Species: Perspectives on Structure, Bonding, and Reactivity. TOP ORGANOMETAL CHEM 2012. [DOI: 10.1007/3418_2012_55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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