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Ye F, Li L, Xu J, Zhou L. Effect of reaction conditions on one-step preparation of 1H,1H,2H,2H-Perfluorooctyltrimethoxysilane by catalytic hydrosilylation over RuCl3·3H2O catalysts. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Ma Y, Li J, Bai Y, Peng J. Carboxylate-Functionalized P, N-Ligated Cobalt Catalysts for Alkene Hydrosilylation. Curr Org Synth 2020; 18:425-430. [PMID: 33319688 PMCID: PMC9178507 DOI: 10.2174/1570179417666201214112514] [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: 09/28/2020] [Revised: 11/04/2020] [Accepted: 11/09/2020] [Indexed: 11/22/2022]
Abstract
A series of N, P-ligands bearing carboxyl groups have been synthesized. These have been applied in conjunction with cobalt naphthenate in a facile, economic, and efficient method for the catalytic hydrosilylation of alkenes. In the presence of KOtBu as an additive, the reaction time and activation energy are greatly reduced.
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Affiliation(s)
- Yangyang Ma
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Jiayun Li
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Ying Bai
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
| | - Jiajian Peng
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
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3
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Todisco S, Latronico M, Gallo V, Re N, Marrone A, Tolbatov I, Mastrorilli P. Double addition of phenylacetylene onto the mixed bridge phosphinito-phosphanido Pt(i) complex [(PHCy 2)Pt(μ-PCy 2){κ 2P,O-μ-P(O)Cy 2}Pt(PHCy 2)](Pt-Pt). Dalton Trans 2020; 49:6776-6789. [PMID: 32374320 DOI: 10.1039/d0dt00923g] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of the dinuclear phosphinito bridged complex [(PHCy2)Pt(μ-PCy2){κ2P,O-μ-P(O)Cy2}Pt(PHCy2)](Pt-Pt) (1) with phenylacetylene affords the η1-alkenyl-μ,η1:η2-alkynyl complex [(η1-trans-(Ph)HC[double bond, length as m-dash]CH)(PHCy2)Pt(μ-PCy2)(μ,η1:η2-PhC[triple bond, length as m-dash]C)Pt{κP-P(O)Cy2}(PHCy2)] (4) displaying a σ-bonded 2-phenylethenyl ligand and an alkynyl (μ-κCα:η2) bridge between the platinum atoms. Complex 4 was shown to form in two steps: initially, the attack of the first molecule of phenylacetylene gives the σ-acetylide complex [(PHCy2)(η1-PhC[triple bond, length as m-dash]C)Pt1(μ-PCy2)Pt2(PHCy2){κP-P(OH)Cy2}](Pt-Pt) (5) featuring an intramolecular π-type hydrogen bond between the POH and the C[triple bond, length as m-dash]C triple bond; fast reaction of 5 with a second molecule of phenylacetylene results in the oxidative addition of the terminal C-H bond of the second alkyne to Pt1 that, after rearrangements, leads to 4. When left in solution for two weeks, complex 4 spontaneously isomerizes completely to [(PHCy2)(η1-trans-(Ph)HC[double bond, length as m-dash]CH)Pt(μ-PCy2){κ2P,O-μ-P(O)Cy2}Pt(η1-PhC[triple bond, length as m-dash]C)(PHCy2)] (7) displaying a 2-phenylethenyl ligand and a phenylethynyl group both σ-bonded to the metal. Density functional calculations at the B3LYP/LACV3P++**//DFT/LACVP* level were carried out to study the thermodynamics of the formation of all considered complexes and to trace the mechanism of formation of the observed products.
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Affiliation(s)
- Stefano Todisco
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, via Orabona 4, I-70125 Bari, Italy.
| | - Mario Latronico
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, via Orabona 4, I-70125 Bari, Italy.
| | - Vito Gallo
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, via Orabona 4, I-70125 Bari, Italy.
| | - Nazzareno Re
- Dipartimento di Farmacia, Università di Chieti, Italy.
| | | | | | - Piero Mastrorilli
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e di Chimica (DICATECh), Politecnico di Bari, via Orabona 4, I-70125 Bari, Italy.
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Mandle RJ, Goodby JW. Inexpensive, operationally simple flow reactor for rapid, chromatography free synthesis of siloxane based liquid crystals. REACT CHEM ENG 2018. [DOI: 10.1039/c8re00027a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the hydrosilylation of terminal alkenes in flow using a “Karstedt-like” platinum-on-silica catalyst to afford liquid-crystalline materials.
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Shin SH, Bae YE, Moon HK, Kim J, Choi SH, Kim Y, Yoon HJ, Lee MH, Nah J. Formation of Triboelectric Series via Atomic-Level Surface Functionalization for Triboelectric Energy Harvesting. ACS NANO 2017; 11:6131-6138. [PMID: 28558185 DOI: 10.1021/acsnano.7b02156] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Triboelectric charging involves frictional contact of two different materials, and their contact electrification usually relies on polarity difference in the triboelectric series. This limits the choices of materials for triboelectric contact pairs, hindering research and development of energy harvest devices utilizing triboelectric effect. A progressive approach to resolve this issue involves modification of chemical structures of materials for effectively engineering their triboelectric properties. Here, we describe a facile method to change triboelectric property of a polymeric surface via atomic-level chemical functionalizations using a series of halogens and amines, which allows a wide spectrum of triboelectric series over single material. Using this method, tunable triboelectric output power density is demonstrated in triboelectric generators. Furthermore, molecular-scale calculation using density functional theory unveils that electrons transferred through electrification are occupying the PET group rather than the surface functional group. The work introduced here would open the ability to tune triboelectric property of materials by chemical modification of surface and facilitate the development of energy harvesting devices and sensors exploiting triboelectric effect.
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Affiliation(s)
- Sung-Ho Shin
- Department of Electrical Engineering, Chungnam National University , Daejeon 34134, Korea
| | | | - Hyun Kyung Moon
- Department of Chemistry, Korea University , Seoul 02841, Korea
| | | | | | | | - Hyo Jae Yoon
- Department of Chemistry, Korea University , Seoul 02841, Korea
| | | | - Junghyo Nah
- Department of Electrical Engineering, Chungnam National University , Daejeon 34134, Korea
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Li F, Li Y. Preparation of efficient and environment-friendly silica-supported EDTA platinum catalyst and its applications in hydrosilylation of olefins and methyldichlorosilane. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.04.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Nakajima Y, Shimada S. Hydrosilylation reaction of olefins: recent advances and perspectives. RSC Adv 2015. [DOI: 10.1039/c4ra17281g] [Citation(s) in RCA: 390] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
This review focuses on the recent development of efficient, selective, and cheaper hydrosilylation catalyst systems appearing in the last decade.
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Affiliation(s)
- Y. Nakajima
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - S. Shimada
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
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Srinivas V, Nakajima Y, Ando W, Sato K, Shimada S. (Salicylaldiminato)Ni(ii)-catalysts for hydrosilylation of olefins. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00270b] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Olefin hydrosilylation was attained at room temperature at 0.5 mol% Ni loading by using a series of (salicylaldiminato)methylnickel complexes as catalyst precursors.
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Affiliation(s)
- Venu Srinivas
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Yumiko Nakajima
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Wataru Ando
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Kazuhiko Sato
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
| | - Shigeru Shimada
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
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