1
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Dhindsa P, Solti D, Jacobson CR, Kuriakose A, Naidu GN, Bayles A, Yuan Y, Nordlander P, Halas NJ. Facet Tunability of Aluminum Nanocrystals. NANO LETTERS 2022; 22:10088-10094. [PMID: 36525692 DOI: 10.1021/acs.nanolett.2c03859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Aluminum nanocrystals (Al NCs) with a well-defined size and shape combine unique plasmonic properties with high earth abundance, potentially ideal for applications where sustainability and cost are important factors. It has recently been shown that single-crystal Al {100} nanocubes can be synthesized by the decomposition of AlH3 with Tebbe's reagent, a titanium(IV) catalyst with two cyclopentadienyl ligands. By systematically modifying the catalyst molecular structure, control of the NC growth morphology is observed spectroscopically, as the catalyst stabilizes the {100} NC facets. By varying the catalyst concentration, Al NC faceted growth is tunable from {100} faceted nanocubes to {111} faceted octahedra. This study provides direct insight into the role of catalyst molecular structure in controlling Al NC morphology.
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Affiliation(s)
- Parmeet Dhindsa
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - David Solti
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Christian R Jacobson
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Anvy Kuriakose
- Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Gopal Narmada Naidu
- Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Aaron Bayles
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Yigao Yuan
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Peter Nordlander
- Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Naomi J Halas
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Laboratory for Nanophotonics, Rice University, 6100 Main Street, Houston, Texas 77005, United States
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2
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Transition Metal-(μ-Cl)-Aluminum Bonding in α-Olefin and Diene Chemistry. Molecules 2022; 27:molecules27217164. [PMID: 36363991 PMCID: PMC9654437 DOI: 10.3390/molecules27217164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
Olefin and diene transformations, catalyzed by organoaluminum-activated metal complexes, are widely used in synthetic organic chemistry and form the basis of major petrochemical processes. However, the role of M−(μ-Cl)−Al bonding, being proven for certain >C=C< functionalization reactions, remains unclear and debated for essentially more important industrial processes such as oligomerization and polymerization of α-olefins and conjugated dienes. Numerous publications indirectly point at the significance of M−(μ-Cl)−Al bonding in Ziegler−Natta and related transformations, but only a few studies contain experimental or at least theoretical evidence of the involvement of M−(μ-Cl)−Al species into catalytic cycles. In the present review, we have compiled data on the formation of M−(μ-Cl)−Al complexes (M = Ti, Zr, V, Cr, Ni), their molecular structure, and reactivity towards olefins and dienes. The possible role of similar complexes in the functionalization, oligomerization and polymerization of α-olefins and dienes is discussed in the present review through the prism of the further development of Ziegler−Natta processes and beyond.
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3
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Spiridopoulos G, Kramer M, Kracht F, Maichle‐Mössmer C, Anwander R. [(CH 3 )Al(CH 2 )] 12 : Methylaluminomethylene (MAM-12). Chemistry 2022; 28:e202200823. [PMID: 35638696 PMCID: PMC9544092 DOI: 10.1002/chem.202200823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Indexed: 11/08/2022]
Abstract
The molecular structure of enigmatic "poly(aluminium-methyl-methylene)" (first reported in 1968) has been unraveled in a transmetalation reaction with gallium methylene [Ga8 (CH2 )12 ] and AlMe3 . The existence of cage-like methylaluminomethylene moieties was initially suggested by the reaction of rare-earth-metallocene complex [Cp*2 Lu{(μ-Me)2 AlMe2 }] with excess AlMe3 affording the deca-aluminium cluster [Cp*4 Lu2 (μ3 -CH2 )12 Al10 (CH3 )8 ] in low yield (Cp*=C5 Me5 ). Treatment of [Ga8 (CH2 )12 ] with excess AlMe3 reproducibly gave the crystalline dodeca-aluminium complex [(CH3 )12 Al12 (μ3 -CH2 )12 ] (MAM-12). Revisiting a previous approach to "poly(aluminium-methyl-methylene" by using a (C5 H5 )2 TiCl2 /AlMe3 (1 : 100) mixture led to amorphous solids displaying solubility behavior and spectroscopic features similar to those of crystalline MAM-12. The gallium methylene-derived MAM-12 was used as an efficient methylene transfer reagent for ketones.
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Affiliation(s)
- Georgios Spiridopoulos
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Markus Kramer
- Institut für Organische ChemieUniversität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Felix Kracht
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Cäcilia Maichle‐Mössmer
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
| | - Reiner Anwander
- Institut für Anorganische ChemieEberhard Karls Universität TübingenAuf der Morgenstelle 1872076TübingenGermany
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4
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Jacobson CR, Wu G, Alemany LB, Naidu GN, Lou M, Yuan Y, Bayles A, Clark BD, Cheng Y, Ali A, Tsai AL, Tonks IA, Nordlander P, Halas NJ. A Dual Catalyst Strategy for Controlling Aluminum Nanocrystal Growth. NANO LETTERS 2022; 22:5570-5574. [PMID: 35737851 DOI: 10.1021/acs.nanolett.2c01854] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The synthesis of Al nanocrystals (Al NCs) is a rapidly expanding field, but there are few strategies for size and morphology control. Here we introduce a dual catalyst approach for the synthesis of Al NCs to control both NC size and shape. By using one catalyst that nucleates growth more rapidly than a second catalyst whose ligands affect NC morphology during growth, one can obtain both size and shape control of the resulting Al NCs. The combination of the two catalysts (1) titanium isopropoxide (TIP), for rapid nucleation, and (2) Tebbe's reagent, for specific facet-promoting growth, yields {100}-faceted Al NCs with tunable diameters between 35 and 65 nm. This dual-catalyst strategy could dramatically expand the possible outcomes for Al NC growth, opening the door to new controlled morphologies and a deeper understanding of earth-abundant plasmonic nanocrystal synthesis.
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Affiliation(s)
| | - Gang Wu
- Division of Hematology-Oncology, Department of Internal Medicine, The University of Texas McGovern Medical School, 6431 Fannin Street, Houston, Texas 77030, United States
| | | | | | | | | | | | | | - Yukun Cheng
- Department of Chemistry, University of Minnesota─Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | | | - Ah-Lim Tsai
- Division of Hematology-Oncology, Department of Internal Medicine, The University of Texas McGovern Medical School, 6431 Fannin Street, Houston, Texas 77030, United States
| | - Ian A Tonks
- Department of Chemistry, University of Minnesota─Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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Deng P, Shi X, Gong X, Cheng J. Trinuclear scandium methylidyne complexes stabilized by pentamethylcyclopentadienyl ligands. Chem Commun (Camb) 2021; 57:6436-6439. [PMID: 34095916 DOI: 10.1039/d1cc01645h] [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 first examples of scandium methylidyne complexes [(Cp*)Sc(μ2-X)]3(μ3-CH) (Cp* = C5Me5; X = Br, Me, OMe), free of Lewis acids, can be achieved in high yields from [(Cp*)ScMe2]2 through a facile route. The chemical and geometrical flexibility to incorporate organic substrates indicates a rich chemistry of complex [(Cp*)Sc(μ2-OMe)]3(μ3-CH).
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Affiliation(s)
- Peng Deng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China. and University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Xianghui Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China.
| | - Xun Gong
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China. and University of Science and Technology of China, Hefei, Anhui 230029, China
| | - Jianhua Cheng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China. and University of Science and Technology of China, Hefei, Anhui 230029, China
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6
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Kurogi T, Kuroki K, Moritani S, Takai K. Structural elucidation of a methylenation reagent of esters: synthesis and reactivity of a dinuclear titanium(iii) methylene complex. Chem Sci 2021; 12:3509-3515. [PMID: 34163624 PMCID: PMC8179466 DOI: 10.1039/d0sc06366e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Transmetallation of a zinc methylene complex [ZnI(tmeda)]2(μ-CH2) with a titanium(iii) chloride [TiCl3(tmeda)(thf)] produced a titanium methylene complex. The X-ray diffraction study displayed a dinuclear methylene structure [TiCl(tmeda)]2(μ-CH2)(μ-Cl)2. Treatment of an ester with the titanium methylene complex resulted in methylenation of the ester carbonyl to form a vinyl ether. The titanium methylene complex also reacted with a terminal olefin, resulting in olefin-metathesis and olefin-homologation. Cyclopropanation by methylene transfer from the titanium methylene proceeded by use of a 1,3-diene. The mechanistic study of the cyclopropanation reaction by the density functional theory calculations was also reported. Transmetallation of a zinc methylene complex [ZnI(tmeda)]2(μ-CH2) with a titanium(iii) chloride [TiCl3(tmeda)(thf)] produced a titanium methylene complex.![]()
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Affiliation(s)
- Takashi Kurogi
- Division of Applied Chemistry, Graduate School of National Science and Technology, Okayama University 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Kaito Kuroki
- Division of Applied Chemistry, Graduate School of National Science and Technology, Okayama University 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Shunsuke Moritani
- Division of Applied Chemistry, Graduate School of National Science and Technology, Okayama University 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of National Science and Technology, Okayama University 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
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7
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Birkelbach VM, Kracht F, Dietrich HM, Stuhl C, Maichle-Mössmer C, Anwander R. A Rare-Earth-Metal Ensemble of the Tebbe Reagent: Scope of Coligands and Carbonyl Olefination. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00447] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Verena M. Birkelbach
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Felix Kracht
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - H. Martin Dietrich
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Christoph Stuhl
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Cäcilia Maichle-Mössmer
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Reiner Anwander
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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8
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Sinclair J, Dai G, McDonald R, Ferguson MJ, Brown A, Rivard E. Insight into the Decomposition Mechanism of Donor-Acceptor Complexes of EH 2 (E = Ge and Sn) and Access to Germanium Thin Films from Solution. Inorg Chem 2020; 59:10996-11008. [PMID: 32686404 DOI: 10.1021/acs.inorgchem.0c01492] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Electron-donating N-heterocyclic carbenes (Lewis bases, LB) and electron-accepting Lewis acids (LA) have been used in tandem to yield donor-acceptor complexes of inorganic tetrelenes LB·EH2·LA (E = Si, Ge, and Sn). Herein, we introduce the new germanium (II) dihydride adducts ImMe2·GeH2·BH3 (ImMe2 = (HCNMe)2C:) and ImiPr2Me2·GeH2·BH3 (ImiPr2Me2 = (MeCNiPr)2C:), with the former complex containing nearly 40 wt % germanium. The thermal release of bulk germanium from ImMe2·GeH2·BH3 (and its deuterated isotopologue ImMe2·GeD2·BD3) was examined in solution, and a combined kinetic and computational investigation was undertaken to probe the mechanism by which Ge is liberated. Moreover, the thermolysis of ImMe2·GeH2·BH3 in solution cleanly affords conformal nanodimensional layers of germanium as thin films of variable thicknesses (20-70 nm) on silicon wafers. We also conducted a computational investigation into potential decomposition pathways for the germanium(II)- and tin(II)-dihydride complexes NHC·EH2·BH3 (NHC = [(HCNR)2C:]; R = 2,6-iPr2C6H3 (Dipp), Me, and H; and E = Ge and Sn). Overall, this study introduces a mild and convenient solution-only protocol for the deposition of thin films of Ge, a widely used semiconductor in materials research and industry.
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Affiliation(s)
- Jocelyn Sinclair
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Guoliang Dai
- School of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, 2215009 Suzhou, P. R. China
| | - Robert McDonald
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Michael J Ferguson
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Alex Brown
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2
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9
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Zatsepin P, Lee E, Gu J, Gau MR, Carroll PJ, Baik MH, Mindiola DJ. Tebbe-like and Phosphonioalkylidene and -alkylidyne Complexes of Scandium. J Am Chem Soc 2020; 142:10143-10152. [DOI: 10.1021/jacs.0c02742] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pavel Zatsepin
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Eunji Lee
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), and Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Jun Gu
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Michael R. Gau
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Patrick J. Carroll
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Mu-Hyun Baik
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), and Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Daniel J. Mindiola
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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10
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Patrick EA, Piers WE. Twenty-five years of bis-pentafluorophenyl borane: a versatile reagent for catalyst and materials synthesis. Chem Commun (Camb) 2020; 56:841-853. [DOI: 10.1039/c9cc08338c] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Highlights of the extensive chemistry and applications of bis-pentafluorophenyl borane (“Piers’ borane”) from the 25 years since its first appearance are featured.
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11
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Clark BD, Jacobson CR, Lou M, Renard D, Wu G, Bursi L, Ali AS, Swearer DF, Tsai AL, Nordlander P, Halas NJ. Aluminum Nanocubes Have Sharp Corners. ACS NANO 2019; 13:9682-9691. [PMID: 31397561 DOI: 10.1021/acsnano.9b05277] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Of the many plasmonic nanoparticle geometries that have been synthesized, nanocubes have been of particular interest for creating nanocavities, facilitating plasmon coupling, and enhancing phenomena dependent upon local electromagnetic fields. Here we report the straightforward colloidal synthesis of single-crystalline {100} terminated Al nanocubes by decomposing AlH3 with Tebbe's reagent in tetrahydrofuran. The size and shape of the Al nanocubes is controlled by the reaction time and the ratio of AlH3 to Tebbe's reagent, which, together with reaction temperature, establish kinetic control over Al nanocube growth. Al nanocubes possess strong localized field enhancements at their sharp corners and resonances highly amenable to coupling with metallic substrates. Their native oxide surface renders them extremely air stable. Chemically synthesized Al nanocubes provide an earth-abundant alternative to noble metal nanocubes for plasmonics and nanophotonics applications.
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Affiliation(s)
| | | | | | | | - Gang Wu
- Division of Hematology, Department of Internal Medicine , The University of Texas McGovern Medical School , 6431 Fannin St , Houston , Texas 77030 , United States
| | | | | | | | - Ah-Lim Tsai
- Division of Hematology, Department of Internal Medicine , The University of Texas McGovern Medical School , 6431 Fannin St , Houston , Texas 77030 , United States
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12
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Wolf BM, Anwander R. Chasing Multiple Bonding Interactions between Alkaline‐Earth Metals and Main‐Group Fragments. Chemistry 2019; 25:8190-8202. [DOI: 10.1002/chem.201901169] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 01/06/2023]
Affiliation(s)
- Benjamin M. Wolf
- Institut für Anorganische ChemieUniversität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Reiner Anwander
- Institut für Anorganische ChemieUniversität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
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13
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Yan F, Li S, Li L, Zhang W, Cui D, Wang M, Dou Y. Lutetium‐Methanediide‐Alkyl Complexes: Unique Reactivity toward Carbodiimide and Pyridine. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900197] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fangbin Yan
- Key Laboratory of Automobile Materials of Ministry of Education Department of Materials Science and Engineering Jilin University Changchun 130025 P. R. China
| | - Shihui Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
| | - Lei Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
| | - Wanxi Zhang
- Key Laboratory of Automobile Materials of Ministry of Education Department of Materials Science and Engineering Jilin University Changchun 130025 P. R. China
| | - Dongmei Cui
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China
| | - Meiyan Wang
- Institute of Theoretical Chemistry Jilin University Changchun 130021 P. R. China
| | - Yanli Dou
- Key Laboratory of Automobile Materials of Ministry of Education Department of Materials Science and Engineering Jilin University Changchun 130025 P. R. China
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14
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Osseili H, Truong K, Spaniol TP, Maron L, Englert U, Okuda J. Alkalimetallamid‐stabilisierte Titancarben‐Komplexe. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812579] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Hassan Osseili
- Institut für Anorganische ChemieRWTH Aachen Landoltweg 1 52056 Aachen Deutschland
| | - Khai‐Nghi Truong
- Institut für Anorganische ChemieRWTH Aachen Landoltweg 1 52056 Aachen Deutschland
| | - Thomas P. Spaniol
- Institut für Anorganische ChemieRWTH Aachen Landoltweg 1 52056 Aachen Deutschland
| | - Laurent Maron
- CNRSINSAUPS, UMR 5215LPCNOUniversité de Toulouse 135 avenue de Rangueil 31077 Toulouse Frankreich
| | - Ulli Englert
- Institut für Anorganische ChemieRWTH Aachen Landoltweg 1 52056 Aachen Deutschland
| | - Jun Okuda
- Institut für Anorganische ChemieRWTH Aachen Landoltweg 1 52056 Aachen Deutschland
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15
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Osseili H, Truong KN, Spaniol TP, Maron L, Englert U, Okuda J. Titanium Carbene Complexes Stabilized by Alkali Metal Amides. Angew Chem Int Ed Engl 2019; 58:1833-1837. [PMID: 30548105 DOI: 10.1002/anie.201812579] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Indexed: 12/22/2022]
Abstract
Facile α-H elimination from tetrakis(trimethylsilylmethyl)titanium precursors to give adducts of (alkylidene)bis(alkyl)titanium complexes is induced by light alkali metal amides of the NNNN-type macrocyclic anionic ligand Me3 TACD [(Me3 TACD)H=1,4,7-trimethyl-1,4,7,10-tetraazacyclododecane]. In the crystal, the alkali metal interacts with the carbene carbon atom or with the CH2 group of the trimethylsilymethyl ligand. The nucleophilic character of the carbene carbon atom was shown by the reaction with benzophenone and terminal acetylenes.
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Affiliation(s)
- Hassan Osseili
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056, Aachen, Germany
| | - Khai-Nghi Truong
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056, Aachen, Germany
| | - Thomas P Spaniol
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056, Aachen, Germany
| | - Laurent Maron
- CNRS, INSA, UPS, UMR 5215, LPCNO, Université de Toulouse, 135 avenue de Rangueil, 31077, Toulouse, France
| | - Ulli Englert
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056, Aachen, Germany
| | - Jun Okuda
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52056, Aachen, Germany
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16
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Abstract
Elaborate synthesis schemes pave the way to f-element and group 3 complexes with multiply bonded imido ligands displaying intriguing reactivity.
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Affiliation(s)
- Dorothea Schädle
- Department of Chemistry
- University of Tübingen
- 72076 Tübingen
- Germany
| | - Reiner Anwander
- Department of Chemistry
- University of Tübingen
- 72076 Tübingen
- Germany
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17
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Yamamoto T, Mitsuno K, Mori S, Itoyama S, Shiota Y, Yoshizawa K, Ishida M, Furuta H. Two Discrete RuCp* (Cp*=Pentamethylcyclopentadienyl) Binding Modes of N-Confused Porphyrins: Peripheral π Complex and Sitting Atop Ruthenocenophane Complex by Skeletal Transformation. Chemistry 2018. [PMID: 29532964 DOI: 10.1002/chem.201801237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Complexation of a RuCp* cation with N-confused tetraarylporphyrins (NCPs) forms directly bound ruthenium(II) pentamethylcyclopentadienyl (Cp*) π-complex on a specific meso-aryl group (e.g., phenyl) neighboring peripheral imino nitrogen of NCPs in high yields. In contrast, in the case of NCPs bearing bulky meso-substituents (e.g., 3,5-di-tert-butylphenyl), new ruthenocenophane-like complex embedded on an N-confused calix[4]phyrin was formed through multiple C-H bond activation of methyl groups of Cp* ligand. The mechanistic insight into the formation of the ruthenocenophane was derived from DFT calculations.
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Affiliation(s)
- Takaaki Yamamoto
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan
| | - Koki Mitsuno
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan
| | - Shigeki Mori
- Advanced Research Support Center, Ehime University, Matsuyama, 790-8577, Japan
| | - Shuhei Itoyama
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Masatoshi Ishida
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan
| | - Hiroyuki Furuta
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Center for Molecular Systems, Kyushu University, Fukuoka, 819-0395, Japan
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18
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Wu QY, Cheng ZP, Lan JH, Wang CZ, Chai ZF, Gibson JK, Shi WQ. Insight into the nature of M–C bonding in the lanthanide/actinide-biscarbene complexes: a theoretical perspective. Dalton Trans 2018; 47:12718-12725. [DOI: 10.1039/c8dt02702a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The An/Ln–C bonding nature was explored using relativistic theory. Inclusion of Np and Pu extends understanding to later actinides bonding.
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Affiliation(s)
- Qun-Yan Wu
- Laboratory of Nuclear Energy Chemistry
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
| | - Zhong-Ping Cheng
- Laboratory of Nuclear Energy Chemistry
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
| | - Jian-Hui Lan
- Laboratory of Nuclear Energy Chemistry
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
| | - Cong-Zhi Wang
- Laboratory of Nuclear Energy Chemistry
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
| | - Zhi-Fang Chai
- Laboratory of Nuclear Energy Chemistry
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
| | - John K. Gibson
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Wei-Qun Shi
- Laboratory of Nuclear Energy Chemistry
- Institute of High Energy Physics
- Chinese Academy of Sciences
- Beijing
- China
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19
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Liu S, Invergo AM, McInnis JP, Mouat AR, Motta A, Lohr TL, Delferro M, Marks TJ. Distinctive Stereochemically Linked Cooperative Effects in Bimetallic Titanium Olefin Polymerization Catalysts. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00641] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Shaofeng Liu
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Anna M. Invergo
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Jennifer P. McInnis
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Aidan R. Mouat
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Alessandro Motta
- Dipartimento
di Scienze Chimiche, Università di Roma “La Sapienza” and INSTM, UdR Roma, Piazzale Aldo Moro 5, I-00185 Roma, Italy
| | - Tracy L. Lohr
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Massimiliano Delferro
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Tobin J. Marks
- Department
of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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20
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Knott JP, Hänninen MM, Rautiainen JM, Tuononen HM, Hayes PG. Insights into the decomposition pathway of a lutetium alkylamido complex via intramolecular C–H bond activation. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.04.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Affiliation(s)
- Richard R. Schrock
- Department
of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Christophe Copéret
- Department
of Chemistry and Applied Biosciences, ETH Zürich, Vladimir
Prelog Weg 1-5, CH-8093 Zürich, Switzerland
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22
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Grant LN, Ahn S, Manor BC, Baik MH, Mindiola DJ. Structural elucidation of a mononuclear titanium methylidene. Chem Commun (Camb) 2017; 53:3415-3417. [DOI: 10.1039/c7cc00654c] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The first example of a structurally characterized titanium methylidene, (PN)2TiCH2, has been prepared via one-electron oxidation of (PN)2Ti(CH3) followed by deprotonation with an ylide or by H-atom abstraction using an aryloxyl radical.
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Affiliation(s)
- Lauren N. Grant
- Department of Chemistry
- University of Pennsylvania
- Philadelphia PA
- USA
| | - Seihwan Ahn
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon
- South Korea
- Institute for Basic Science
| | - Brian C. Manor
- Department of Chemistry
- University of Pennsylvania
- Philadelphia PA
- USA
| | - Mu-Hyun Baik
- Department of Chemistry
- Korea Advanced Institute of Science and Technology
- Daejeon
- South Korea
- Institute for Basic Science
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23
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Kurogi T, Carroll PJ, Mindiola DJ. A radical coupled pathway to a stable and terminally bound titanium methylidene. Chem Commun (Camb) 2017; 53:3412-3414. [DOI: 10.1039/c7cc00371d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Radical coupling or oxidation of the titanium(iii)dimethyl precursor (PNP)Ti(CH3)2 produced the dimethyl compounds, (PNP)Ti(CH3)2(X) (X = TEMPO, OMes*, OTf), which then thermally extrude methane to cyclometallate (X = TEMPO) or form the methylidene (X = OMes* or OTf).
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Affiliation(s)
- Takashi Kurogi
- Department of Chemistry
- University of Pennsylvania
- Philadelphia
- USA
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24
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MacLeod KC, Menges FS, McWilliams SF, Craig SM, Mercado BQ, Johnson MA, Holland PL. Alkali-Controlled C-H Cleavage or N-C Bond Formation by N2-Derived Iron Nitrides and Imides. J Am Chem Soc 2016; 138:11185-91. [PMID: 27571271 PMCID: PMC5266523 DOI: 10.1021/jacs.6b04984] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Formation of N-H and N-C bonds from functionalization of N2 is a potential route to utilization of this abundant resource. One of the key challenges is to make the products of N2 activation reactive enough to undergo further reactions under mild conditions. This paper explores the strategy of "alkali control," where the presence of an alkali metal cation enables the reduction of N2 under mild conditions, and then chelation of the alkali metal cation uncovers a highly reactive species that can break benzylic C-H bonds to give new N-H and Fe-C bonds. The ability to "turn on" this C-H activation pathway with 18-crown-6 is demonstrated with three different N2 reduction products of N2 cleavage in an iron-potassium system. The alkali control strategy can also turn on an intermolecular reaction of an N2-derived nitride with methyl tosylate that gives a new N-C bond. Since the transient K(+)-free intermediate reacts with this electrophile but not with the weak C-H bonds in 1,4-cyclohexadiene, it is proposed that the C-H cleavage occurs by a deprotonation mechanism. The combined results demonstrate that a K(+) ion can mask the latent nucleophilicity of N2-derived nitride and imide ligands within a trimetallic iron system and points a way toward control over N2 functionalization.
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Affiliation(s)
- K. Cory MacLeod
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Fabian S. Menges
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Sean F. McWilliams
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Stephanie M. Craig
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Brandon Q. Mercado
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Mark A. Johnson
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Patrick L. Holland
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
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25
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Levine DS, Tilley TD, Andersen RA. Evidence for the Existence of Group 3 Terminal Methylidene Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00394] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel S. Levine
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | - T. Don Tilley
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
| | - Richard A. Andersen
- Department
of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron
Road, Berkeley, California 94720, United States
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26
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Schnee G, Specklin D, Djukic JP, Dagorne S. Deprotonation of Al2Me6 by Sterically Bulky NHCs: Scope, Rationale through DFT Studies, and Application in the Methylenation of Carbonyl Substrates. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00159] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gilles Schnee
- SRCO
Group and ⧧Laboratoire de Chimie et Systémique Organo-métalliques, Institut de Chimie de Strasbourg, CNRS-Université de Strasbourg, UMR 7177, 1 Rue Blaise Pascal, F-67000 Strasbourg, France
| | - David Specklin
- SRCO
Group and ⧧Laboratoire de Chimie et Systémique Organo-métalliques, Institut de Chimie de Strasbourg, CNRS-Université de Strasbourg, UMR 7177, 1 Rue Blaise Pascal, F-67000 Strasbourg, France
| | | | - Samuel Dagorne
- SRCO
Group and ⧧Laboratoire de Chimie et Systémique Organo-métalliques, Institut de Chimie de Strasbourg, CNRS-Université de Strasbourg, UMR 7177, 1 Rue Blaise Pascal, F-67000 Strasbourg, France
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27
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Hong J, Li Z, Chen Z, Weng L, Zhou X, Zhang L. Small molecule activation by mixed methyl/methylidene rare earth metal complexes. Dalton Trans 2016; 45:6641-9. [DOI: 10.1039/c6dt00314a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Diverse reactivity patterns of mixed tetramethyl/methylidene rare-earth complexes bearing bulky benzamidinate coligands with PhCN, alkynes, and CS2 have been established and fully characterized.
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Affiliation(s)
- Jianquan Hong
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Zhenhua Li
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Zhening Chen
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Linhong Weng
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Xigeng Zhou
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Lixin Zhang
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
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28
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Comanescu CC, Vyushkova M, Iluc VM. Palladium carbene complexes as persistent radicals. Chem Sci 2015; 6:4570-4579. [PMID: 28717474 PMCID: PMC5500858 DOI: 10.1039/c5sc01441g] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 05/18/2015] [Indexed: 11/21/2022] Open
Abstract
A series of palladium(ii) radical carbene complexes, [PC˙(sp2)P]PdI, [PC˙(sp2)P]PdBr, and [PC˙(sp2)P]PdCl (PC(sp3)H2P = bis[2-(di-iso-propylphosphino)-phenyl]methane), is described. Compound [PC˙(sp2)P]PdI dimerizes to {[PC(sp2)P]PdI}2 in the solid state, akin to the formation of Gomberg's dimer. While the bromo and the iodo derivatives could be obtained from the oxidation of [PC(sp2)P]Pd(PMe3) by the respective dihalogens, a halogen transfer reaction from CH2Cl2 was used for the formation of [PC˙(sp2)P]PdCl. The halogen transfer from CH2X2 (X = Cl, Br, I) could be used to obtain all three radical carbene palladium complexes and also allowed the isolation of [PC(CH2)P]Pd(PMe3), which is the result of methylene group transfer from CH2X2. Compound [PC(CH2)P]Pd(PMe3) was independently synthesized from [PC(CH3)HP]PdCl2, which contains a supporting ligand analogous to that of the radical carbene complexes but has one of the hydrogen atoms replaced by a methyl group. All three carbene radical species abstract a hydrogen from 9,10-dihydroanthracene or n Bu3SnH.
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Affiliation(s)
- C C Comanescu
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , IN 46556 , USA .
| | - M Vyushkova
- Notre Dame Radiation Laboratory , University of Notre Dame , Notre Dame , IN 46556 , USA
| | - V M Iluc
- Department of Chemistry and Biochemistry , University of Notre Dame , Notre Dame , IN 46556 , USA .
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29
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Affiliation(s)
- Cezar C. Comanescu
- Department
of Chemistry and
Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
| | - Vlad M. Iluc
- Department
of Chemistry and
Biochemistry, University of Notre Dame, 251 Nieuwland Science Hall, Notre Dame, Indiana 46556, United States
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30
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Gonsales SA, Pascualini ME, Ghiviriga I, Abboud KA, Veige AS. Fast “Wittig-Like” Reactions As a Consequence of the Inorganic Enamine Effect. J Am Chem Soc 2015; 137:4840-5. [DOI: 10.1021/jacs.5b01599] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stella A. Gonsales
- Department
of Chemistry,
Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Matias E. Pascualini
- Department
of Chemistry,
Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Ion Ghiviriga
- Department
of Chemistry,
Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Khalil A. Abboud
- Department
of Chemistry,
Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Adam S. Veige
- Department
of Chemistry,
Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
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31
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Schädle D, Meermann-Zimmermann M, Schädle C, Maichle-Mössmer C, Anwander R. Rare-Earth Metal Complexes with Terminal Imido Ligands. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500045] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Cui P, Comanescu CC, Iluc VM. Frustrated Lewis pair-like reactions of nucleophilic palladium carbenes with B(C6F5)3. Chem Commun (Camb) 2015; 51:6206-9. [DOI: 10.1039/c5cc00868a] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nucleophilic palladium carbenes react with the strong Lewis acid B(C6F5)3via remote nucleophilic attack at the para-carbon of the supporting ligand or C–F activation of B(C6F5)3; these reactions indicate frustrated Lewis pair-like behaviour given the steric inaccessibility of the nucleophilic carbene center.
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Affiliation(s)
- Peng Cui
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Cezar C. Comanescu
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Vlad M. Iluc
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
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33
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Schädle D, Maichle-Mössmer C, Schädle C, Anwander R. Rare-Earth-Metal Methyl, Amide, and Imide Complexes Supported by a Superbulky Scorpionate Ligand. Chemistry 2014; 21:662-70. [DOI: 10.1002/chem.201404792] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Indexed: 11/07/2022]
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34
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Arnold PL, McMullon MW, Rieb J, Kühn FE. CH Bond Activation by f‐Block Complexes. Angew Chem Int Ed Engl 2014; 54:82-100. [DOI: 10.1002/anie.201404613] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Polly L. Arnold
- EaStCHEM School of Chemistry, University of Edinburgh, The King's Buildings, Edinburgh, EH9 3FJ (UK)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2a, 85748 Garching (Germany)
| | - Max W. McMullon
- EaStCHEM School of Chemistry, University of Edinburgh, The King's Buildings, Edinburgh, EH9 3FJ (UK)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2a, 85748 Garching (Germany)
| | - Julia Rieb
- Fakultät für Chemie, Zentralinstitut für Katalyseforschung, Technische Universität München (Germany)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2a, 85748 Garching (Germany)
| | - Fritz E. Kühn
- Fakultät für Chemie, Zentralinstitut für Katalyseforschung, Technische Universität München (Germany)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstrasse 2a, 85748 Garching (Germany)
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35
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Arnold PL, McMullon MW, Rieb J, Kühn FE. C‐H‐Aktivierung mit Komplexen der f‐Block‐Elemente. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404613] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Polly L. Arnold
- EaStCHEM School of Chemistry, University of Edinburgh, The King's Buildings, Edinburgh, EH9 3FJ (Großbritannien)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching (Deutschland)
| | - Max W. McMullon
- EaStCHEM School of Chemistry, University of Edinburgh, The King's Buildings, Edinburgh, EH9 3FJ (Großbritannien)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching (Deutschland)
| | - Julia Rieb
- Fakultät für Chemie, Zentralinstitut für Katalyseforschung, Technische Universität München (Deutschland)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching (Deutschland)
| | - Fritz E. Kühn
- Fakultät für Chemie, Zentralinstitut für Katalyseforschung, Technische Universität München (Deutschland)
- Institute for Advanced Study, Technische Universität München, Lichtenbergstraße 2a, 85748 Garching (Deutschland)
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36
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Comanescu CC, Iluc VM. Synthesis and Reactivity of a Nucleophilic Palladium(II) Carbene. Organometallics 2014. [DOI: 10.1021/om500682s] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Cezar C. Comanescu
- Department
of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Vlad M. Iluc
- Department
of Chemistry and
Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
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37
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Li S, Wang M, Liu B, Li L, Cheng J, Wu C, Liu D, Liu J, Cui D. Lutetium-methanediide-alkyl complexes: synthesis and chemistry. Chemistry 2014; 20:15493-8. [PMID: 25284379 DOI: 10.1002/chem.201404809] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Indexed: 11/11/2022]
Abstract
The first four-coordinate methanediide/alkyl lutetium complex (BODDI)Lu2 (CH2 SiMe3 )2 (μ2 -CHSiMe3 )(THF)2 (BODDI=ArNC(Me)CHCOCHC(Me)NAr, Ar=2,6-iPr2 C6 H3 ) (1) was synthesized by a thermolysis methodology through α-H abstraction from a Lu-CH2 SiMe3 group. Complex 1 reacted with equimolar 2,6-iPrC6 H3 NH2 and Ph2 C+O to give the corresponding lutetium bridging imido and oxo complexes (BODDI)Lu2 (CH2 SiMe3 )2 (μ2 -N-2,6-iPr2 C6 H3 )(THF)2 (2) and (BODDI)Lu2 (CH2 SiMe3 )2 (μ2 -O)(THF)2 (3). Treatment of 3 with Ph2 C=O (4 equiv) caused a rare insertion of Lu-μ2 -O bond into theC=O group to afford a diphenylmethyl diolate complex 4. Reaction of 1 with PhN=C=O (2 equiv) led to the migration of SiMe3 to the amido nitrogen atom to give complex (BODDI)Lu2 (CH2 SiMe3 )2 -μ-{PhNC(O)CHC(O)NPh(SiMe3 )-κ(3) N,O,O}(THF) (5). Reaction of 1 withtBuN=C formed an unprecedented product (BODDI)Lu2 (CH2 SiMe3 ){μ2 -[η(2) :η(2) -tBuN=C(=CH2 )SiMe2 CHC=NtBu-κ(1) N]}(tBuN=C)2 (6) through a cascade reaction of N=C bond insertion, sequential cyclometalative γ-(sp(3) )-H activation, C=C bond formation, and rearrangement of the newly formed carbene intermediate. The possible mechanistic pathways between 1, PhN=C=O, and tBuN=C were elucidated by DFT calculations.
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Affiliation(s)
- Shihui Li
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 (P.R. China)
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Svitova AL, Ghiassi KB, Schlesier C, Junghans K, Zhang Y, Olmstead MM, Balch AL, Dunsch L, Popov AA. Endohedral fullerene with μ3-carbido ligand and titanium-carbon double bond stabilized inside a carbon cage. Nat Commun 2014; 5:3568. [PMID: 24699547 DOI: 10.1038/ncomms4568] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Accepted: 03/05/2014] [Indexed: 11/09/2022] Open
Abstract
In all metallofullerenes known before this work, metal atoms form single highly polar bonds with non-metal atoms in endohedral cluster. This is rather surprising for titanium taking into account the diversity of organotitanium compounds. Here we show that the arc-discharge synthesis of mixed titanium-lutetium metallofullerenes in the presence of ammonia, melamine or methane unexpectedly results in the formation of TiLu2C@I(h)-C80 with an icosahedral Ih(7) carbon cage. Single-crystal X-ray diffraction and spectroscopic studies of the compound reveal an unprecedented endohedral cluster with a μ3-carbido ligand and Ti-C double bond. The Ti(IV) in TiLu2C@I(h)-C80 can be reversibly reduced to the Ti(III) state. The Ti = C bonding and Ti-localized lowest unoccupied molecular orbital in TiLu2C@Ih-C80 bear a certain resemblance to titanium alkylidenes. TiLu2C@I(h)-C80 is the first metallofullerene with a multiple bond between a metal and the central, non-metal atom of the endohedral cluster.
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Affiliation(s)
- A L Svitova
- Department of Electrochemistry and Conducting Polymers, Leibniz Institute for Solid State and Materials Research Dresden, Helmholtzstrasse 20, Dresden 01069, Germany
| | - K B Ghiassi
- Department of Chemistry, University of California, Davis, California 95616, USA
| | - C Schlesier
- Department of Electrochemistry and Conducting Polymers, Leibniz Institute for Solid State and Materials Research Dresden, Helmholtzstrasse 20, Dresden 01069, Germany
| | - K Junghans
- Department of Electrochemistry and Conducting Polymers, Leibniz Institute for Solid State and Materials Research Dresden, Helmholtzstrasse 20, Dresden 01069, Germany
| | - Y Zhang
- Department of Electrochemistry and Conducting Polymers, Leibniz Institute for Solid State and Materials Research Dresden, Helmholtzstrasse 20, Dresden 01069, Germany
| | - M M Olmstead
- Department of Chemistry, University of California, Davis, California 95616, USA
| | - A L Balch
- Department of Chemistry, University of California, Davis, California 95616, USA
| | - L Dunsch
- Department of Electrochemistry and Conducting Polymers, Leibniz Institute for Solid State and Materials Research Dresden, Helmholtzstrasse 20, Dresden 01069, Germany
| | - A A Popov
- Department of Electrochemistry and Conducting Polymers, Leibniz Institute for Solid State and Materials Research Dresden, Helmholtzstrasse 20, Dresden 01069, Germany
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39
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Searles K, Keijzer K, Chen CH, Baik MH, Mindiola DJ. Binary role of an ylide in formation of a terminal methylidene complex of niobium. Chem Commun (Camb) 2014; 50:6267-9. [DOI: 10.1039/c4cc01404a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The methylidene complex can be prepared readily in high yield from the reaction of [(Ar′O)2Nb(CH3)2Cl] (Ar′ = (2,6-CHPh2)2-4-tBu-C6H2) and two equivalents of H2CPPh3. The nucleophilic methylidene of [(Ar′O)2NbCH2(CH3)(H2CPPh3)] can undergo Wittig-like or protonation chemistry to form structurally similar molecules.
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Affiliation(s)
- Keith Searles
- Department of Chemistry
- University of Pennsylvania
- Philadelphia, USA
| | - Karlijn Keijzer
- Department of Chemistry and Molecular Structure Center
- Indiana University
- Bloomington, USA
| | - Chun-Hsing Chen
- Department of Chemistry and Molecular Structure Center
- Indiana University
- Bloomington, USA
| | - Mu-Hyun Baik
- Department of Chemistry and Molecular Structure Center
- Indiana University
- Bloomington, USA
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40
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Rare Earth Arene-Bridged Complexes Obtained by Reduction of Organometallic Precursors. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/b978-0-444-63256-2.00266-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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41
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Thompson R, Nakamaru-Ogiso E, Chen CH, Pink M, Mindiola DJ. Structural Elucidation of the Illustrious Tebbe Reagent. Organometallics 2013. [DOI: 10.1021/om401108b] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rick Thompson
- Department of Chemistry and the Molecular Structure
Center, Indiana University, Bloomington, Indiana 47405, United States
| | - Eiko Nakamaru-Ogiso
- Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, 295 John Morgan Building, 3620 Hamilton
Walk, Philadelphia, Pennsylvania 19104, United States
| | - Chun-Hsing Chen
- Department of Chemistry and the Molecular Structure
Center, Indiana University, Bloomington, Indiana 47405, United States
| | - Maren Pink
- Department of Chemistry and the Molecular Structure
Center, Indiana University, Bloomington, Indiana 47405, United States
| | - Daniel J. Mindiola
- Department of Chemistry and the Molecular Structure
Center, Indiana University, Bloomington, Indiana 47405, United States
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42
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Li T, Nishiura M, Cheng J, Zhang W, Li Y, Hou Z. Hydrogenolysis and Protonation of Polymetallic Lutetium Methylidene and Methyl Complexes. Organometallics 2013. [DOI: 10.1021/om4002999] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tingting Li
- State Key Laboratory of Fine
Chemicals, Department of Polymer Science and Engineering, School of
Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
- Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Masayoshi Nishiura
- Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1
Hirosawa, Wako, Saitama 351-0198, Japan
| | - Jianhua Cheng
- Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Wenxiong Zhang
- Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yang Li
- State Key Laboratory of Fine
Chemicals, Department of Polymer Science and Engineering, School of
Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Zhaomin Hou
- State Key Laboratory of Fine
Chemicals, Department of Polymer Science and Engineering, School of
Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
- Organometallic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1
Hirosawa, Wako, Saitama 351-0198, Japan
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43
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Cooper OJ, Mills DP, McMaster J, Tuna F, McInnes EJL, Lewis W, Blake AJ, Liddle ST. The Nature of the UC Double Bond: Pushing the Stability of High-Oxidation-State Uranium Carbenes to the Limit. Chemistry 2013; 19:7071-83. [DOI: 10.1002/chem.201300071] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 02/01/2013] [Indexed: 11/09/2022]
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44
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Mills DP, Lewis W, Blake AJ, Liddle ST. Reactivity Studies of a T-Shaped Yttrium Carbene: C–F and C–O Bond Activation and C═C Bond Formation Promoted by [Y(BIPM)(I)(THF)2] (BIPM = C(PPh2NSiMe3)2). Organometallics 2013. [DOI: 10.1021/om301016j] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- David P. Mills
- School of Chemistry, University of Nottingham, University Park, Nottingham
NG7 2RD, U.K
| | - William Lewis
- School of Chemistry, University of Nottingham, University Park, Nottingham
NG7 2RD, U.K
| | - Alexander J. Blake
- School of Chemistry, University of Nottingham, University Park, Nottingham
NG7 2RD, U.K
| | - Stephen T. Liddle
- School of Chemistry, University of Nottingham, University Park, Nottingham
NG7 2RD, U.K
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45
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Summerscales OT, Gordon JC. Complexes containing multiple bonding interactions between lanthanoid elements and main-group fragments. RSC Adv 2013. [DOI: 10.1039/c3ra23151h] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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46
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Mills DP, Soutar L, Cooper OJ, Lewis W, Blake AJ, Liddle ST. Reactivity of the Yttrium Alkyl Carbene Complex [Y(BIPM)(CH2C6H5)(THF)] (BIPM = {C(PPh2NSiMe3)2})2–: From Insertions, Substitutions, and Additions to Nontypical Transformations. Organometallics 2012. [DOI: 10.1021/om3010178] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- David P. Mills
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - Lyndsay Soutar
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - Oliver J. Cooper
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - William Lewis
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - Alexander J. Blake
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
| | - Stephen T. Liddle
- School of Chemistry, University of Nottingham, University
Park, Nottingham NG7 2RD, U.K
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47
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Wicker BF, Fan H, Hickey AK, Crestani MG, Scott J, Pink M, Mindiola DJ. Evidence for the Existence of Terminal Scandium Imidos: Mechanistic Studies Involving Imido–Scandium Bond Formation and C–H Activation Reactions. J Am Chem Soc 2012; 134:20081-96. [DOI: 10.1021/ja307279r] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Benjamin F. Wicker
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Hongjun Fan
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Anne K. Hickey
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Marco G. Crestani
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Jennifer Scott
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Maren Pink
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
| | - Daniel J. Mindiola
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United
States
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48
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Desnoyer AN, Fartel B, MacLeod KC, Patrick BO, Smith KM. Ambient-Temperature Carbon–Oxygen Bond Cleavage of an α-Aryloxy Ketone with Cp2Ti(BTMSA) and Selective Protonolysis of the Resulting Ti–OR Bonds. Organometallics 2012. [DOI: 10.1021/om300950c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Addison N. Desnoyer
- Department of Chemistry, University of British Columbia Okanagan, 3333 University Way, Kelowna,
British Columbia, Canada V1V 1V7
| | - Beata Fartel
- Department of Chemistry, University of British Columbia Okanagan, 3333 University Way, Kelowna,
British Columbia, Canada V1V 1V7
| | - K. Cory MacLeod
- Department of Chemistry, University of British Columbia Okanagan, 3333 University Way, Kelowna,
British Columbia, Canada V1V 1V7
| | - Brian O. Patrick
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada
V6T 1Z1
| | - Kevin M. Smith
- Department of Chemistry, University of British Columbia Okanagan, 3333 University Way, Kelowna,
British Columbia, Canada V1V 1V7
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49
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Li T, Nishiura M, Cheng J, Li Y, Hou Z. M4(CH2)4 cubane-type rare-earth methylidene complexes: unique reactivity toward unsaturated C-O, C-N, and C-S bonds. Chemistry 2012; 18:15079-85. [PMID: 23059833 DOI: 10.1002/chem.201202796] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Indexed: 11/11/2022]
Abstract
The reactivity of the cubane-type rare-earth methylidene complex [Cp'Lu(μ(3)-CH(2))](4) (1, Cp' = C(5)Me(4)SiMe(3)) with various unsaturated electrophiles was investigated. The reaction of 1 with CO (1 atm) at room temperature gave the bis(ketene dianion)/dimethylidene complex [Cp'(4)Lu(4)(μ(3)-CH(2))(2)(μ(3),η(2)-O-C=CH(2))(2)] (2) in 86 % yield through the insertion of two molecules of CO into two of the four lutetium-methylidene units. In the reaction with the sterically demanding N,N-diisopropylcarbodiimide at 60 °C, only one of the four methylidene units in 1 reacted with one molecule of the carbodiimide substrate to give the mono(ethylene diamido)/trimethylidene complex [Cp'(4)Lu(4)(μ(3)-CH(2))(3) {iPrNC(=CH(2))NiPr}] (3) in 83% yield. Similarly, the reaction of 1 with phenyl isothiocyanate gave the ethylene amido thiolate/trimethylidene complex [Cp'(4)Lu(4)(μ(3)-CH(2))(3) {PhNC(S)=CH(2)}] (4). In the case of phenyl isocyanate, two of the four methylidene units in 1 reacted with four molecules of the substrate at ambient temperature to give the malonodiimidate/dimethylidene complex [Cp'(4)Lu(4)(μ(3)-CH(2))(2) {PhN=C(O)CH(2)(O)C=NPh}(2)] (5) in 87% yield. In this reaction, each of the two lutetium-methylidene bonds per methylidene unit inserted one molecule of phenyl isocyanate. All the products have been fully characterized by NMR spectroscopy, X-ray diffraction, and microelemental analyses.
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Affiliation(s)
- Tingting Li
- State Key Laboratory of Fine Chemicals, Department of Polymer Science and Engineering, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, PR China
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50
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Suresh CH, Frenking G. 1,3-Metal–Carbon Bonding and Alkyne Metathesis: DFT Investigations on Model Complexes of Group 4, 5, and 6 Transition Metals. Organometallics 2012. [DOI: 10.1021/om3007097] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cherumuttathu H. Suresh
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse,
D-35032 Marburg, Germany
- Chemical Sciences and Technology
Division, National Institute for Interdisciplinary, Science and Technology, CSIR, Trivandrum 695 019, India
| | - Gernot Frenking
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse,
D-35032 Marburg, Germany
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