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Borodin AO, Kuratieva NV, Plyusnin PE, Filatov EY, Korenev SV, Kostin GA. DOUBLE COMPLEX SALTS OF NICKEL AMINES WITH THE [RuNOCl5]2– ANION: SYNTHESIS, STRUCTURE, PROPERTIES. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622120083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Ru/Pd Complex and Its Monometallic Fragments as Catalysts for Norbornene Polymerization via ROMP and Addition. Catalysts 2022. [DOI: 10.3390/catal12101111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The [Ru(PPh3)2Cl-piperidine(4-aminomethyl)] complex (mono-Ru) was synthesized from [Ru(PPh3)3Cl2] and 4-(aminomethyl)piperidine, whereas the [(PPh3)PdCl(Shiff-pip)] complex (mono-Pd) was obtained by reacting [Pd(PPh3)2Cl2] with its respective Schiff base ligand, both at a 1:1 molar ratio. The heterobimetallic [RuCl2(PPh3)2](μ-Schiff)Pd(PPh3)Cl] complex (Ru/Pd) was synthesized via a one-pot, three-component reaction of mono-Ru, [(Pd(PPh3)2Cl2] and salicylaldehyde. All complexes were fully characterized by FTIR, UV-Vis, and NMR spectroscopy, as well as elemental analysis, MALDI-TOF mass spectrometry, cyclic voltammetry, and computational studies. Ru/Pd was able to polymerize norbornene (NBE) by two different mechanisms: ROMP and vinyl polymerization. The Ru fragment was active for ROMP of NBE, reaching yields of 68 and 31% for mono-Ru and Ru/Pd, respectively, when the [NBE]/[Ru] = 3000 molar ratio and 5 μL EDA addition were employed at 50 °C. The poly(norbornene) (polyNBE) obtained presented an order of magnitude of 104 g mol−1 and Ð values between 1.48 and 1.79. For the vinyl polymerization of NBE, the Pd fragment was active using MAO as a cocatalyst, reaching a yield of 47.0% for Ru/Pd and quantitative yields for mono-Pd when [Al]/[Pd] = 2500 and [NBE]/[Pd] = 20,000 molar ratios were employed, both at 60 °C.
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Apilardmongkol P, Ratanasak M, Hasegawa JY, Parasuk V. Exploring the Reaction Mechanism of Heterobimetallic Nickel‐Alkali Catalysts for Ethylene Polymerization: Secondary‐Metal‐Ligand Cooperative Catalysis. ChemCatChem 2022. [DOI: 10.1002/cctc.202200028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Pavee Apilardmongkol
- Chulalongkorn University Faculty of Science Chemistry Pathumwan 10330 Bangkok THAILAND
| | - Manussada Ratanasak
- Hokkaido University Catalysis Theory Research Division, Institute for Catalysis Kita21, Nishi10, Kita-ku, Sapporo, Hokkaido, Japan, 001-0021 001-0021 Sapporo JAPAN
| | - Jun-ya Hasegawa
- Hokkaido University: Hokkaido Daigaku Institute for Catalysis Kita21, Nishi10, Kita-ku, Sapporo 001-0021 Sappporo JAPAN
| | - Vudhichai Parasuk
- Chulalongkorn University Faculty of Science Chemistry Pathumwan 10330 Bangkok THAILAND
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Gois PDDS, Maia JIP, Masson GHC, Martins DM, Machado AEDH, Goi BE, Maia PIDS, Carvalho‐Jr VPD. Monometallic and heterobimetallic ruthenium (II) and palladium (II) complexes based on a pyridine‐hydrazone ligand as bifunctional catalysts for ROMP of norbornene and ethylene polymerization. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | | | | | | | | | - Beatriz Eleutério Goi
- Faculdade de Ciências e Tecnologia UNESP – Univ. Estadual Paulista Presidente Prudente Brazil
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