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Cai Y, Hua Y, Lu Z, Chen J, Chen D, Xia H. Metallacyclobutadienes: Intramolecular Rearrangement from Kinetic to Thermodynamic Isomers. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2403940. [PMID: 39104029 DOI: 10.1002/advs.202403940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/02/2024] [Indexed: 08/07/2024]
Abstract
Metallacyclobutadienes (MCBDs) are key intermediates of alkyne metathesis reactions. There are in principle two isomerization pathway from kinetic to thermodynamic MCBDs, intermolecular and intramolecular. However, systems that simultaneously isolate two kinds of MCBD isomers have not been achieved, thus restricting the mechanistic studies of the isomerization. Here the reactivity of a metallapentalyne that contains an M≡C bond within the aromatic ring, with alkynes to afford a series of MCBD-fused metallapentalenes is studied. In some cases, both kinetic and thermodynamic products are isolated in the same system, which has never been observed in previous MCBD reactions. Furthermore, the isomerization of MCBD-fused metallapentalenes is investigated both experimentally and theoretically, indicating that it is an intramolecular process involving a metallatetrahedrane (MTd) intermediate. This research provides experimental evidence demonstrating that one MCBD can undergo intramolecular rearrangement to transform into another.
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Affiliation(s)
- Yuanting Cai
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yuhui Hua
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518005, China
| | - Zhengyu Lu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518005, China
| | - Jiangxi Chen
- Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Dafa Chen
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518005, China
| | - Haiping Xia
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518005, China
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2
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Watson LJ, Hill AF. Stable cyclopropenylvinyl ligands via insertion into a transient cyclopropenyl metal bond. Dalton Trans 2024; 53:3629-3637. [PMID: 38289268 DOI: 10.1039/d3dt03997h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Treatment of the rhodium pincer complexes [RhCl(RPm)] (RPm = N,N'-bis(di-R-phosphinomethyl)perimidinylidene, R = Ph, Cy) with triphenylcyclopropenium hexafluorophosphate affords rhodacyclobutadiene complexes. These in turn react with activated alkynes (RCCCO2Me, R = H, CO2Me) to afford unusually stable cyclopropenylvinyls, implicating the intermediacy of σ-cyclopropenyl isomers. In contrast, treatment of [RhCl{py(NHPtBu2)2-2,6}] with the same reagent instead results in double functionalisation (SEAr) at the pincer backbone.
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Affiliation(s)
- Lachlan J Watson
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, ACT 2601, Australia.
| | - Anthony F Hill
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory, ACT 2601, Australia.
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3
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Jafari MG, Russell JB, Lee H, Pudasaini B, Pal D, Miao Z, Gau MR, Carroll PJ, Sumerlin BS, Veige AS, Baik MH, Mindiola DJ. Vanadium Alkylidyne Initiated Cyclic Polymer Synthesis: The Importance of a Deprotiovanadacyclobutadiene Moiety. J Am Chem Soc 2024; 146:2997-3009. [PMID: 38272018 DOI: 10.1021/jacs.3c08149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Reported is the catalytic cyclic polymer synthesis by a 3d transition metal complex: a V(V) alkylidyne, [(dBDI)V≡CtBu(OEt2)] (1-OEt2), supported by the deprotonated β-diketiminate dBDI2- (dBDI2- = ArNC(CH3)CHC(CH2)NAr, Ar = 2,6-iPr2C6H3). Complex 1-OEt2 is a precatalyst for the polymerization of phenylacetylene (PhCCH) to give cyclic poly(phenylacetylene) (c-PPA), whereas its precursor, complex [(BDI)V≡CtBu(OTf)] (2-OTf; BDI- = [ArNC(CH3)]2CH, Ar = 2,6-iPr2C6H3, OTf = OSO2CF3), and the zwitterion [((C6F5)3B-dBDI)V≡CtBu(OEt2)] (3-OEt2) exhibit low catalytic activity despite having a neopentylidyne ligand. Cyclic polymer topologies were verified by size-exclusion chromatography (SEC) and intrinsic viscosity studies. A component of the mechanism of the cyclic polymerization reaction was probed by isolation and full characterization of 4- and 6-membered metallacycles as model intermediates. Metallacyclobutadiene (MCBD) and deprotiometallacyclobutadiene (dMCBD) complexes (dBDI)V[C(tBu)C(H)C(tBu)] (4-tBu) and (BDI)V[C(tBu)CC(Mes)] (5-Mes), respectively, were synthesized upon reaction with bulkier alkynes, tBu- (tBuCCH) and Mes-acetylene (MesCCH), with 1-OEt2. Furthermore, the reaction of the conjugate acid of 1-OEt2, [(BDI)V≡CtBu(OTf)] (2-OTf), with the conjugated base of phenylacetylene, lithium phenylacetylide (LiCCPh), yields the doubly deprotio-metallacycle complex, [Li(THF)4]{(BDI)V[C(Ph)CC(tBu)CC(Ph)]} (6). Protonation of the doubly deprotio-metallacycle complex 6 yields 6-H+, a catalytically active species toward the polymerization of PhCCH, for which the polymers were also confirmed to be cyclic by SEC studies. Computational mechanistic studies complement the experimental observations and provide insight into the mechanism of cyclic polymer growth. The noninnocence of the supporting dBDI2- ligand and its role in proton shuttling to generate deprotiometallacyclobutadiene (dMCBD) complexes that proposedly culminate in the formation of catalytically active V(III) species are also discussed. This work demonstrates how a dMCBD moiety can react with terminal alkynes to form cyclic polyalkynes.
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Affiliation(s)
- Mehrafshan G Jafari
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - John B Russell
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Hanna Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Bimal Pudasaini
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Digvijayee Pal
- Department of Chemistry, Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Zhihui Miao
- Department of Chemistry, Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200, 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
| | - Brent S Sumerlin
- Department of Chemistry, Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Adam S Veige
- Department of Chemistry, Center for Catalysis, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Mu-Hyun Baik
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Daniel J Mindiola
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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Gabdullin AM, Kadikova RN, Mozgovoj OS, Ramazanov IR. TaCl
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‐Catalyzed Amidation of Carboxylic Acids with Amines. ChemistrySelect 2023. [DOI: 10.1002/slct.202204298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- Azat M. Gabdullin
- Institute of Petrochemistry and Catalysis Ufa Federal Research Center Russian Academy of Sciences 141 Prospekt Oktyabrya Ufa 450075 Russian Federation
| | - Rita N. Kadikova
- Institute of Petrochemistry and Catalysis Ufa Federal Research Center Russian Academy of Sciences 141 Prospekt Oktyabrya Ufa 450075 Russian Federation
| | - Oleg S. Mozgovoj
- Institute of Petrochemistry and Catalysis Ufa Federal Research Center Russian Academy of Sciences 141 Prospekt Oktyabrya Ufa 450075 Russian Federation
| | - Ilfir R. Ramazanov
- Institute of Petrochemistry and Catalysis Ufa Federal Research Center Russian Academy of Sciences 141 Prospekt Oktyabrya Ufa 450075 Russian Federation
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Park JY, Ko JH, Lee HJ, Park JH, Lee J, Sa S, Shin EJ, Lee BY. Up-Scale Synthesis of p-(CH 2=CH)C 6H 4CH 2CH 2CH 2Cl and p-ClC 6H 4SiR 3 by CuCN-Catalyzed Coupling Reactions of Grignard Reagents with Organic Halides. ACS OMEGA 2022; 7:46849-46858. [PMID: 36570214 PMCID: PMC9773938 DOI: 10.1021/acsomega.2c05951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Grignard reagents featuring carbanion characteristics are mostly unreactive toward alkyl halides and require a catalyst for the coupling reaction. With the need to prepare p-(CH2=CH)C6H4CH2CH2CH2Cl on a large scale, the coupling reaction of p-(CH2=CH)C6H4MgCl with BrCH2CH2CH2Cl was attempted to screen the catalysts, and CuCN was determined to be the best catalyst affording the desired compound in 80% yield with no formation of Wurtz coupling side product CH2=CHC6H4-C6H4CH=CH2. The p-(CH2=CH)C6H4Cu(CN)MgCl species was proposed as an intermediate based on the X-ray structure of PhCu(CN)Mg(THF)4Cl. p-ClC6H4MgCl did not react with sterically encumbered R3SiCl (R = n-Bu or n-octyl). However, the reaction took place with the addition of 3 mol % CuCN catalyst, affording the desired compound p-ClC6H4SiR3. The structures of p-(CH2=CH)C6H4CH2CH2CH2MgCl and p-ClC6H4MgCl were also elucidated, which existed as an aggregate with MgCl2, suggesting that some portion of the Grignard reagents were possibly lost in the coupling reaction due to coprecipitation with the byproduct MgCl2. R3SiCl (R = n-Bu or n-octyl) was also prepared easily and economically with no formation of R4Si when SiCl4 was reacted with 4 equiv of RMgCl. Using the developed syntheses, [p-(CH2=CH)C6H4CH2CH2CH2]2Zn and iPrN[P(C6H4-p-SiR3)2]2, which are potentially useful compounds for the production of PS-block-PO-block-PS and 1-octene, respectively, were efficiently synthesized with substantial cost reductions.
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Affiliation(s)
- Ju Yong Park
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
| | - Ji Hyeong Ko
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
| | - Hyun Ju Lee
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
| | - Jun Hyeong Park
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
| | - Junseong Lee
- Department
of Chemistry, Chonnam National University, Gwangju61186, South Korea
| | | | | | - Bun Yeoul Lee
- Department
of Molecular Science and Technology, Ajou
University, Suwon16499, South Korea
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6
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Cui M, Jia G. Organometallic Chemistry of Transition Metal Alkylidyne Complexes Centered at Metathesis Reactions. J Am Chem Soc 2022; 144:12546-12566. [PMID: 35793547 DOI: 10.1021/jacs.2c01192] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Transition metals form a variety of alkylidyne complexes with either a d0 metal center (high-valent) or a non-d0 metal center (low-valent). One of the most interesting properties of alkylidyne complexes is that they can undergo or mediate metathesis reactions. The most well-studied metathesis reactions are alkyne metathesis involving high-valent alkylidynes. High-valent alkylidynes can also undergo metathesis reactions with heterotriple bonded species such as N≡CR, P≡CR, and N≡NR+. Metathesis reactions involving low-valent alkylidynes are less known. Highly efficient alkyne metathesis catalysts have been developed based on Mo(VI) and W(VI) alkylidynes. Catalytic cross-metathesis of nitriles with alkynes has also been achieved with M(VI) (M = W, Mo) alkylidyne or nitrido complexes. The metathesis activity of alkylidyne complexes is sensitively dependent on metals, supporting ligands and substituents of alkylidynes. Beyond metathesis, metal alkylidynes can also promote other reactions including alkyne polymerization. The remaining shortcomings and opportunities in the field are assessed.
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Affiliation(s)
- Mingxu Cui
- Department of Chemistry, The Hong Kong University of Science and Technology, Kowloon, SAR, Hong Kong, China
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Kowloon, SAR, Hong Kong, China.,HKUST Shenzhen Research Institute, Shenzhen, 518057, China
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7
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Wei W, Sung HHY, Williams ID, Jia G. Reactions of Alkyl‐Substituted Rhenacyclobutadiene Complexes with Electron‐Rich Alkynes. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wei Wei
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay Hong Kong China
| | - Herman H. Y. Sung
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay Hong Kong China
| | - Ian D. Williams
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay Hong Kong China
| | - Guochen Jia
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay Hong Kong China
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8
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Wei W, Xu X, Lee KH, Lin R, Sung HHY, Williams ID, Lin Z, Jia G. Reactions of Rhenacyclobutadiene Complexes with Allenes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00493] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Wei
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Xin Xu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Ka-Ho Lee
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Ran Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
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9
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Abstract
The linear μ-carbido complex [Rh2(μ-C)Cl2(dppm)2] (dppm = bis(diphenylphosphino)methane) reacts with a benzyne equivalent (Me3SiC6H4OTf-2/F-) to afford [Rh2(μ-CC6H4)(μ-Cl)(C6H5)Cl2(μ-dppm)2], in which the benzyne moiety adds across one of the two metal-carbon double bonds.
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Affiliation(s)
- Harrison J Barnett
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory ACT 2601, Australia.
| | - Anthony F Hill
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory ACT 2601, Australia.
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10
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Chen S, Liu L, Gao X, Hua Y, Peng L, Zhang Y, Yang L, Tan Y, He F, Xia H. Addition of alkynes and osmium carbynes towards functionalized d π-p π conjugated systems. Nat Commun 2020; 11:4651. [PMID: 32938934 PMCID: PMC7495419 DOI: 10.1038/s41467-020-18498-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 08/21/2020] [Indexed: 12/12/2022] Open
Abstract
The metal-carbon triple bonds and carbon-carbon triple bonds are both highly unsaturated bonds. As a result, their reactions tend to afford cycloaddition intermediates or products. Herein, we report a reaction of M≡C and C≡C bonds that affords acyclic addition products. These newly discovered reactions are highly efficient, regio- and stereospecific, with good functional group tolerance, and are robust under air at room temperature. The isotope labeling NMR experiments and theoretical calculations reveal the reaction mechanism. Employing these reactions, functionalized dπ-pπ conjugated systems can be easily constructed and modified. The resulting dπ-pπ conjugated systems were found to be good electron transport layer materials in organic solar cells, with power conversion efficiency up to 16.28% based on the PM6: Y6 non-fullerene system. This work provides a facile, efficient methodology for the preparation of dπ-pπ conjugated systems for use in functional materials.
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Affiliation(s)
- Shiyan Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Longzhu Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Xiang Gao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Yuhui Hua
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Lixia Peng
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Ying Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Liulin Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Yuanzhi Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China
| | - Feng He
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, 518055, Shenzhen, China.
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, 361005, Xiamen, China.
- Shenzhen Grubbs Institute and Department of Chemistry, Southern University of Science and Technology, 518055, Shenzhen, China.
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11
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Lee JC, Park KL, Bae SM, Lee HJ, Baek JW, Lee J, Sa S, Shin EJ, Lee KS, Lee BY. Styrene Moiety-Carrying Diorganozinc Compound Preparation for Polystyrene-Poly(ethylene-co-1-hexene)-Polystyrene Triblock Copolymer Production. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01253] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jong Chul Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Kyung Lee Park
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Sung Moon Bae
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Hyun Ju Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Jun Won Baek
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
| | - Junseong Lee
- Department of Chemistry, Chonnam National University, Gwangju 61186, South Korea
| | - Seokpil Sa
- LG Chem Ltd., Daejeon 34122, South Korea
| | | | - Ki Soo Lee
- LG Chem Ltd., Daejeon 34122, South Korea
| | - Bun Yeoul Lee
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, South Korea
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12
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Zheng S, Chu Z, Lee K, Lin Q, Li Y, He G, Chen J, Jia G. Synthesis, Characterization and Electronic Structure of Dirhenadehyro[12]annulene Complexes. Chempluschem 2018; 84:85-91. [DOI: 10.1002/cplu.201800537] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/07/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Shaohui Zheng
- Department of Materials Science and Engineering College of MaterialsXiamen University Xiamen 361005 P. R. China
| | - Zhenwei Chu
- Department of Materials Science and Engineering College of MaterialsXiamen University Xiamen 361005 P. R. China
| | - Ka‐Ho Lee
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong P. R. China
| | - Qin Lin
- Department of Materials Science and Engineering College of MaterialsXiamen University Xiamen 361005 P. R. China
| | - Yucen Li
- Department of Materials Science and Engineering College of MaterialsXiamen University Xiamen 361005 P. R. China
| | - Guomei He
- Department of Materials Science and Engineering College of MaterialsXiamen University Xiamen 361005 P. R. China
| | - Jiangxi Chen
- Department of Materials Science and Engineering College of MaterialsXiamen University Xiamen 361005 P. R. China
| | - Guochen Jia
- Department of ChemistryThe Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong P. R. China
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13
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Cui M, Lin R, Jia G. Chemistry of Metallacyclobutadienes. Chem Asian J 2018; 13:895-912. [DOI: 10.1002/asia.201701814] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/03/2018] [Indexed: 01/21/2023]
Affiliation(s)
- Mingxu Cui
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon, Hong Kong China
| | - Ran Lin
- State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, Fujian Agriculture and Forestry University; Fuzhou Fujian China
| | - Guochen Jia
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay Kowloon, Hong Kong China
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14
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Pell CJ, Zhu Y, Huacuja R, Herbert DE, Hughes RP, Ozerov OV. Fluorocarbene, fluoroolefin, and fluorocarbyne complexes of Rh. Chem Sci 2017; 8:3178-3186. [PMID: 28507693 PMCID: PMC5414389 DOI: 10.1039/c6sc05391b] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 02/16/2017] [Indexed: 12/11/2022] Open
Abstract
The manuscript reports the synthesis, characterization, and analysis of electronic structure in a series of complexes of small perfluorocarbon ligands with the (PNP)Rh fragment (where PNP is a diarylamido/bis(phosphine) pincer ligand). Reactions of (PNP)Rh(TBE) as the source of (PNP)Rh with CHF3 and C2HF5 produced perfluoroalkylidene complexes (PNP)Rh[double bond, length as m-dash]CF2 and (PNP)Rh[double bond, length as m-dash]C(F)(CF3). (PNP)Rh[double bond, length as m-dash]CF2 could also be obtained via the reaction of (PNP)Rh(TBE) with Me3SiCF3/CsF, with an admixture of (PNP)Rh(C2F4), where TBE = tert-butylethylene. Abstraction of fluoride from these neutral (PNP)RhC x F y complexes was successful, although only abstraction from (PNP)Rh[double bond, length as m-dash]CF2 allowed unambiguous identification of the Rh product, [(PNP)Rh[triple bond, length as m-dash]CF]+. DFT computational studies allowed comparison of relative energies of (PNP)Rh(C2F4) and [(PNP)Rh(C2F3)]+ isomers as well as comparisons between the electronic structure of the [double bond, length as m-dash]CF2, C2F4, and [triple bond, length as m-dash]CF+ complexes and their hydrocarbon analogues.
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Affiliation(s)
- Christopher J Pell
- Department of Chemistry , Texas A&M University , College Station , TX 77842 , USA .
| | - Yanjun Zhu
- Department of Chemistry , Texas A&M University , College Station , TX 77842 , USA .
| | - Rafael Huacuja
- Department of Chemistry , Texas A&M University , College Station , TX 77842 , USA .
| | - David E Herbert
- Department of Chemistry , Texas A&M University , College Station , TX 77842 , USA .
| | - Russell P Hughes
- Department of Chemistry , Dartmouth College , Hanover , New Hampshire 03755 , USA
| | - Oleg V Ozerov
- Department of Chemistry , Texas A&M University , College Station , TX 77842 , USA .
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15
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Petuker A, Mebs S, Schuth N, Gerschel P, Reback ML, Mallick B, van Gastel M, Haumann M, Apfel UP. Spontaneous Si–C bond cleavage in (TriphosSi)-nickel complexes. Dalton Trans 2017; 46:907-917. [DOI: 10.1039/c6dt04048a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of TriphosC/Si-derived nickel(ii) complexes revealed high structural flexibility and unexpected reactivities.
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Affiliation(s)
- Anette Petuker
- Ruhr University Bochum
- Inorganic Chemistry I
- 44801 Bochum
- Germany
| | - Stefan Mebs
- Freie Universität Berlin
- Department of Physics
- 14195 Berlin
- Germany
| | - Nils Schuth
- Freie Universität Berlin
- Department of Physics
- 14195 Berlin
- Germany
| | | | | | - Bert Mallick
- Ruhr University Bochum
- Inorganic Chemistry I
- 44801 Bochum
- Germany
| | - Maurice van Gastel
- Max-Planck-Institut für chemische Energiekonversion
- 45470 Mülheim a. d. Ruhr
- Germany
| | - Michael Haumann
- Freie Universität Berlin
- Department of Physics
- 14195 Berlin
- Germany
| | - Ulf-Peter Apfel
- Ruhr University Bochum
- Inorganic Chemistry I
- 44801 Bochum
- Germany
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16
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Kim DH, Park SS, Park SH, Jeon JY, Kim HB, Lee BY. Preparation of polystyrene–polyolefin multiblock copolymers by sequential coordination and anionic polymerization. RSC Adv 2017. [DOI: 10.1039/c6ra25848d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The polyolefin and polystyrene chains were successively grown from [4-(isopropenyl)benzyl]2Zn to form polystyrene-b-polyolefin-b-polystyrene units.
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Affiliation(s)
- Dong Hyun Kim
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- South Korea
| | - Seung Soo Park
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- South Korea
| | - Su Hyun Park
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- South Korea
| | - Jong Yeob Jeon
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- South Korea
| | - Hyo Bo Kim
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- South Korea
| | - Bun Yeoul Lee
- Department of Molecular Science and Technology
- Ajou University
- Suwon 443-749
- South Korea
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17
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2015. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.08.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Bai W, Lee KH, Sung HHY, Williams ID, Lin Z, Jia G. Alkyne Metathesis Reactions of Rhenium(V) Carbyne Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00653] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Bai
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ka-Ho Lee
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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19
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20
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Chen J, Lee KH, Sung HHY, Williams ID, Lin Z, Jia G. Synthesis and Characterization of Dirhenadehydro[12]annulenes. Angew Chem Int Ed Engl 2016; 55:7194-8. [PMID: 27125726 DOI: 10.1002/anie.201601562] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 03/20/2016] [Indexed: 01/19/2023]
Abstract
The 12-membered-ring metallacycles [mer-Re{≡CCH=C(R)C≡C-}Cl(PMe2 Ph)3 )]2 (R=CMe3 , 1-adamantyl), which are organometallic analogues of antiaromatic octadehydro[12]annulene, are prepared by heating the methyl carbyne complexes mer-Re{≡CCH=C(R)C≡CH}(CH3 )Cl(PMe2 Ph)3 . An intermolecular σ-bond metathesis between the Re-CH3 bond and the acetylenic C-H bond is proposed for their formation.
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Affiliation(s)
- Jiangxi Chen
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.,Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China
| | - Ka-Ho Lee
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Herman H Y Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ian D Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
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