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Navarro M, Moreno JJ, Pérez-Jiménez M, Campos J. Small molecule activation with bimetallic systems: a landscape of cooperative reactivity. Chem Commun (Camb) 2022; 58:11220-11235. [PMID: 36128973 PMCID: PMC9536487 DOI: 10.1039/d2cc04296g] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/06/2022] [Indexed: 11/22/2022]
Abstract
There is growing interest in the design of bimetallic cooperative complexes, which have emerged due to their potential for bond activation and catalysis, a feature widely exploited by nature in metalloenzymes, and also in the field of heterogeneous catalysis. Herein, we discuss the widespread opportunities derived from combining two metals in close proximity, ranging from systems containing multiple M-M bonds to others in which bimetallic cooperation occurs even in the absence of M⋯M interactions. The choice of metal pairs is crucial for the reactivity of the resulting complexes. In this context, we describe the prospects of combining not only transition metals but also those of the main group series, which offer additional avenues for cooperative pathways and reaction discovery. Emphasis is given to mechanisms by which bond activation occurs across bimetallic structures, which is ascribed to the precise synergy between the two metal atoms. The results discussed herein indicate a future landscape full of possibilities within our reach, where we anticipate that bimetallic synergism will have an important impact in the design of more efficient catalytic processes and the discovery of new catalytic transformations.
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Affiliation(s)
- Miquel Navarro
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Juan José Moreno
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Marina Pérez-Jiménez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
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2
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Navarro M, Campos J. Bimetallic frustrated Lewis pairs. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2021. [DOI: 10.1016/bs.adomc.2021.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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3
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Zhang N, Huo S, Meng L, Li X. Nb(
i
PrNPMe
2
)
3
Fe–PMe
3
: A potential high reactivity heterobimetallic catalyst for acetylene cycloadditions. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Na Zhang
- College of Chemistry and Material Science Hebei Normal University Road East of 2nd Ring South Shijiazhuang 050024 China
| | - Suhong Huo
- College of Chemistry and Material Science Hebei Normal University Road East of 2nd Ring South Shijiazhuang 050024 China
| | - Lingpeng Meng
- National Demonstration Center for Experimental Chemistry Hebei Normal University Road East of 2nd Ring South Shijiazhuang 050024 China
| | - Xiaoyan Li
- College of Chemistry and Material Science Hebei Normal University Road East of 2nd Ring South Shijiazhuang 050024 China
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4
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Zhou Y, Yu X, Cheng L. Multiple d-d bonds between early transition metals in TM 2Li n (TM = Sc, Ti) superatomic molecule clusters. NANOSCALE 2020; 12:20506-20512. [PMID: 33026386 DOI: 10.1039/d0nr05480a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The synthesis and application of compounds with Cr-Cr and V-V d-d quintuple bonds (σ, 2π, 2δ) have led to new thinking about whether d-d multiple bonds also exist between early transition metals such as Sc-Sc and Ti-Ti. In this study, by extensive unbiased global search at the density functional theory level, the low-energy structures of 26e and 30e TM2Lin clusters were obtained. Based on the super valence bond (SVB) theory, the prolate double-core structure of TM2Lin clusters was regarded as a superatomic molecule, of which each half was regarded as an open-shell superatom, and the electronic shell-closure was realized by forming multiple bonds between superatoms. Then, the quintuple super bonds (2δ, 2π, σ) of the Li18Ti2, Li20Sc2, [Li17V2]+, [Li17Ti2]- clusters and the triple super bonds (2π, σ) of the Li24Sc2 and Li24Y2 clusters were confirmed via chemical-bonding analysis. This way of forming multiple bonds between early transition metals through superatomic bonding has promoted the experimental synthesis and application of early transition metal multiple bond compounds.
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Affiliation(s)
- Yichun Zhou
- Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University Hefei, Anhui 230601, P. R. China.
| | - Xinlei Yu
- Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University Hefei, Anhui 230601, P. R. China.
| | - Longjiu Cheng
- Department of Chemistry, Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui University Hefei, Anhui 230601, P. R. China.
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5
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Nakagaki M, Nakatani N, Sakaki S. How to understand very weak Cr-Cr double bonds and negative spin populations in trinuclear Cr complexes: theoretical insight. Phys Chem Chem Phys 2019; 21:22976-22989. [PMID: 31599298 DOI: 10.1039/c9cp03645h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Trinuclear Cr(ii) complex [Cr3(dpa)4Cl2] 1 (Hdpa = dipyridylamine) has two Cr-Cr double bonds linked with each other. DMRG-CASPT2 calculations reproduced its symmetrical structure. The Cr-Cr effective bond order (EBO) was evaluated to be only 0.59 based on the density matrix based on localized orbitals from DMRG-CASSCF orbitals. The CASCI calculations showed a significantly large α-spin population on the terminal Cr atoms as expected but a significantly large β-spin population on the central Cr atom against expectations. The very small EBO and the presence of a large β-spin population are not consistent with the simple understanding that 1 has two Cr-Cr double bonds and a quintet ground state, which requests correct understanding of 1 from the viewpoint of chemical bond theory. Comparison of 1 with the allene molecule and allyl radical disclosed that the linked Cr-Cr bonds of 1 resembled the C-C bond of the allyl radical but completely differed from the linked C-C double bonds of allene despite the similar molecular structure. Its N3 analogue [Cr3(dpa)4(N3)2] 2 has non-symmetrical structure with shorter Cr1-Cr2 and longer Cr2-Cr3 bonds unlike 1, indicating that 2 is a valence tautomer of 1. DMRG-CASPT2 could reproduce its non-symmetrical structure but DFT/B3PW91 could not. In 2, the EBO is 0.95 for the shorter Cr1-Cr2 bond and 0.47 for the longer Cr2-Cr3 one. The terminal Cr3 has a very large α spin population, and the other terminal Cr1 has a somewhat large α spin population, but the central Cr2 has a considerably large β spin population. These results indicate that the Cr1-Cr2 bond conjugates with the Cr2-Cr3 bond, which is inconsistent with the simple understanding that 2 has a quadruple bond between Cr1 and Cr2 and no bond between Cr2 and Cr3. The symmetrical structure has a stronger Cr-X coordinate bond (X = Cl or N3) but less stable Cr3 core than does the non-symmetrical one. The relative stabilities of the symmetrical and the non-symmetrical structures are determined by the balance between stabilization energies from the Cr3 core and the Cr-X coordinate bond. All these findings show that electronic structures and Cr-Cr bonds of 1 and 2 are interesting from the viewpoint of molecular science.
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Affiliation(s)
- Masayuki Nakagaki
- Fukui Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho, Sakyo-ku, Kyoto 606-8103, Japan.
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Pérez-Jiménez M, Campos J, López-Serrano J, Carmona E. Reactivity of a trans-[H-Mo[quadruple bond, length as m-dash]Mo-H] unit towards alkenes and alkynes: bimetallic migratory insertion, H-elimination and other reactions. Chem Commun (Camb) 2018; 54:9186-9189. [PMID: 30062330 DOI: 10.1039/c8cc04945a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Complex [Mo2(H)2{μ-HC(NDipp)2}2(THF)2], (1·THF), reacts with C2H4 and PhCH[double bond, length as m-dash]CH2 to afford hydrido-hydrocarbyl and bis(hydrocarbyl) derivatives of the Mo[quadruple bond, length as m-dash]Mo bond. Reversible migratory insertion and β-hydrogen elimination, as well as reductive elimination and other reactions, have been uncovered. PhC[triple bond, length as m-dash]CH behaves instead as a Brönsted-Lowry acid towards the strongly basic Mo-H bonds of 1·THF.
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Affiliation(s)
- Marina Pérez-Jiménez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica, Centro de Innovaciones Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain.
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7
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Sugahara T, Guo JD, Sasamori T, Nagase S, Tokitoh N. Regioselective Cyclotrimerization of Terminal Alkynes Using a Digermyne. Angew Chem Int Ed Engl 2018; 57:3499-3503. [DOI: 10.1002/anie.201801222] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Tomohiro Sugahara
- Institute for Chemical Research; Kyoto University; Gokasho Uji Kyoto 611-0011 Japan
| | - Jing-Dong Guo
- Institute for Chemical Research; Kyoto University; Gokasho Uji Kyoto 611-0011 Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences; Nagoya City University, Yamanohata 1, Mizuho-cho; Mizuho-ku Nagoya Aichi 467-8501 Japan
| | - Shigeru Nagase
- Fukui Institute for Fundamental Chemistry; Kyoto University; Sakyo-ku Kyoto 606-8103 Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research; Kyoto University; Gokasho Uji Kyoto 611-0011 Japan
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Sugahara T, Guo JD, Sasamori T, Nagase S, Tokitoh N. Regioselective Cyclotrimerization of Terminal Alkynes Using a Digermyne. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801222] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tomohiro Sugahara
- Institute for Chemical Research; Kyoto University; Gokasho Uji Kyoto 611-0011 Japan
| | - Jing-Dong Guo
- Institute for Chemical Research; Kyoto University; Gokasho Uji Kyoto 611-0011 Japan
| | - Takahiro Sasamori
- Graduate School of Natural Sciences; Nagoya City University, Yamanohata 1, Mizuho-cho; Mizuho-ku Nagoya Aichi 467-8501 Japan
| | - Shigeru Nagase
- Fukui Institute for Fundamental Chemistry; Kyoto University; Sakyo-ku Kyoto 606-8103 Japan
| | - Norihiro Tokitoh
- Institute for Chemical Research; Kyoto University; Gokasho Uji Kyoto 611-0011 Japan
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Chen Y, Hasegawa JY, Yamaguchi K, Sakaki S. A coordination strategy to realize a sextuply-bonded complex. Phys Chem Chem Phys 2018; 19:14947-14954. [PMID: 28492645 DOI: 10.1039/c7cp00871f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of higher-order multiple bonds is a great challenge in chemistry. However, no stable compound with a sextuple bond has been reported, except for Mo2 in an inert matrix at low temperatures. Herein, we propose a strategy to construct a sextuple bond in a dinuclear transition metal complex based on complete active space second-order perturbation theory (CASPT2) and density functional theory calculations. When the dinuclear core M2 (M = W, Mo, and Re+) is capped by two neutral electron-donating ligands at both M-M ends, a sextuple bond can be realized. The proposed ligands stabilize the M2 core by the coordination, conserve the six bonding orbitals in the occupied space, and suppress the weight of the δ-δ* excited electronic configuration. Calculated large formation energies of these complexes indicate the large possibility of the synthesis. Electronic structures and sextuply bonding interactions were analyzed in detail.
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Affiliation(s)
- Yue Chen
- Institute for Catalysis, Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo 001-0021, Japan.
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Abstract
With molecular orbital theory it is possible to distinguish and design σ, π and the elusive δ electrostatic holes.
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Affiliation(s)
- V. Angarov
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 841051
- Israel
| | - S. Kozuch
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 841051
- Israel
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11
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Multiply-bonded dinuclear complexes of early-transition metals as minimum entities of metal cluster catalysts. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.08.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Huang YS, Huang GT, Liu YL, Yu JSK, Tsai YC. Reversible Cleavage/Formation of the Chromium-Chromium Quintuple Bond in the Highly Regioselective Alkyne Cyclotrimerization. Angew Chem Int Ed Engl 2017; 56:15427-15431. [PMID: 29045761 DOI: 10.1002/anie.201709583] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Indexed: 11/11/2022]
Abstract
Herein we report the employment of the quintuply bonded dichromium amidinates [Cr{κ2 -HC(N-2,6-i Pr2 C6 H3 )(N-2,6-R2 C6 H3 )}]2 (R=iPr (1), Me (7)) as catalysts to mediate the [2+2+2] cyclotrimerization of terminal alkynes giving 1,3,5-trisubstituted benzenes. During the catalysis, the ultrashort Cr-Cr quintuple bond underwent reversible cleavage/formation, corroborated by the characterization of two inverted arene sandwich dichromium complexes (μ-η6 :η6 -1,3,5-(Me3 Si)3 C6 H3 )[Cr{κ2 -HC(N-2,6-i Pr2 C6 H3 )(N-2,6-R2 C6 H3 )}]2 (R=i Pr (5), Me (8)). In the presence of σ donors, such as THF and 2,4,6-Me3 C6 H2 CN, the bridging arene 1,3,5-(Me3 Si)3 C6 H3 in 5 and 8 was extruded and 1 and 7 were regenerated. Theoretical calculations were employed to disclose the reaction pathways of these highly regioselective [2+2+2] cylcotrimerization reactions of terminal alkynes.
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Affiliation(s)
- Yu-Siang Huang
- Department of Chemistry and Frontier Research, Center on Fundamental and Applied Sciences and Matters, National Tsing Hua University, 101, Sec. 2, Guang-Fu Road, Hsinchu, 300, Taiwan
| | - Gou-Tao Huang
- Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300, Taiwan
| | - Yao-Lun Liu
- Department of Chemistry and Frontier Research, Center on Fundamental and Applied Sciences and Matters, National Tsing Hua University, 101, Sec. 2, Guang-Fu Road, Hsinchu, 300, Taiwan
| | - Jen-Shiang K Yu
- Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300, Taiwan
| | - Yi-Chou Tsai
- Department of Chemistry and Frontier Research, Center on Fundamental and Applied Sciences and Matters, National Tsing Hua University, 101, Sec. 2, Guang-Fu Road, Hsinchu, 300, Taiwan
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Huang YS, Huang GT, Liu YL, Yu JSK, Tsai YC. Reversible Cleavage/Formation of the Chromium-Chromium Quintuple Bond in the Highly Regioselective Alkyne Cyclotrimerization. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709583] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yu-Siang Huang
- Department of Chemistry and Frontier Research; Center on Fundamental and Applied Sciences and Matters; National Tsing Hua University; 101, Sec. 2, Guang-Fu Road Hsinchu 300 Taiwan
| | - Gou-Tao Huang
- Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology; National Chiao Tung University; 75 Bo-Ai Street Hsinchu 300 Taiwan
| | - Yao-Lun Liu
- Department of Chemistry and Frontier Research; Center on Fundamental and Applied Sciences and Matters; National Tsing Hua University; 101, Sec. 2, Guang-Fu Road Hsinchu 300 Taiwan
| | - Jen-Shiang K. Yu
- Institute of Bioinformatics and Systems Biology and Department of Biological Science and Technology; National Chiao Tung University; 75 Bo-Ai Street Hsinchu 300 Taiwan
| | - Yi-Chou Tsai
- Department of Chemistry and Frontier Research; Center on Fundamental and Applied Sciences and Matters; National Tsing Hua University; 101, Sec. 2, Guang-Fu Road Hsinchu 300 Taiwan
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Hollingsworth RL, Bheemaraju A, Lenca N, Lord RL, Groysman S. Divergent reactivity of a new dinuclear xanthene-bridged bis(iminopyridine) di-nickel complex with alkynes. Dalton Trans 2017; 46:5605-5616. [DOI: 10.1039/c6dt04532d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new di-nickel complex supported by a relatively flexible xanthene-bridged bis(iminopyridine) ligand is reported and its reactivity in alkyne cycloaddition is investigated.
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Affiliation(s)
| | | | - Nicole Lenca
- Lumigen Instrument Center
- Department of Chemistry
- Wayne State University
- Detroit
- USA
| | - Richard L. Lord
- Department of Chemistry
- Grand Valley State University
- Allendale
- USA
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15
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Yamamoto K, Nagae H, Tsurugi H, Mashima K. Mechanistic understanding of alkyne cyclotrimerization on mononuclear and dinuclear scaffolds: [4 + 2] cycloaddition of the third alkyne onto metallacyclopentadienes and dimetallacyclopentadienes. Dalton Trans 2016; 45:17072-17081. [DOI: 10.1039/c6dt03389j] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We summarized mechanistic investigations for transition metal-catalyzed alkyne cyclotrimerization in terms of mononuclear and dinuclear complexes.
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Affiliation(s)
- Keishi Yamamoto
- Department of Chemistry
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Haruki Nagae
- Department of Chemistry
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Hayato Tsurugi
- Department of Chemistry
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
| | - Kazushi Mashima
- Department of Chemistry
- Graduate School of Engineering Science
- Osaka University
- Toyonaka
- Japan
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Nair AK, Harisomayajula NS, Tsai YC. The lengths of the metal-to-metal quintuple bonds and reactivity thereof. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.09.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Liu JF, Min X, Lv JY, Pan FX, Pan QJ, Sun ZM. Ligand-Controlled Syntheses of Copper(I) Complexes with Metal–Metal Interactions: Crystal Structure and Relativistic Density Functional Theory Investigation. Inorg Chem 2014; 53:11068-74. [DOI: 10.1021/ic5015797] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun-Feng Liu
- State
Key Laboratory of Rare Earth Resource Utilization, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin
Street, Changchun, Jilin 130022, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xue Min
- State
Key Laboratory of Rare Earth Resource Utilization, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin
Street, Changchun, Jilin 130022, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jin-Yu Lv
- Key
Laboratory of Functional Inorganic Material Chemistry of Education
Ministry, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Fu-Xing Pan
- State
Key Laboratory of Rare Earth Resource Utilization, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin
Street, Changchun, Jilin 130022, China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Qing-Jiang Pan
- Key
Laboratory of Functional Inorganic Material Chemistry of Education
Ministry, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Zhong-Ming Sun
- State
Key Laboratory of Rare Earth Resource Utilization, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin
Street, Changchun, Jilin 130022, China
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