异腈和膦配体在铂（II）配合物[PtHalLL]（Hal = Cl、Br、I；L,L = CNCy、PPh）中的相互排布产生用于炔烃硅氢化反应的高效光催化剂。
Mutual Placement of Isocyanide and Phosphine Ligands in Platinum(II) Complexes [PtHalLL] (Hal = Cl, Br, I; L,L = CNCy, PPh) Leads to Highly-Efficient Photocatalysts for Hydrosilylation of Alkynes.
作者信息
Kashina Maria V, Karcheuski Andrei A, Kinzhalov Mikhail A, Luzyanin Konstantin V, Katkova Svetlana A
机构信息
Institute of Chemistry, St. Petersburg University, 7/9 Universitetskaya Emb., Saint Petersburg 199034, Russia.
Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7SD, UK.
出版信息
Molecules. 2023 Nov 24;28(23):7764. doi: 10.3390/molecules28237764.
A series of platinum complexes featuring phosphine and isocyanide ligands [PtX(PPh)(CNCy)] (X = Cl, Br, and I) as well as their parent phosphine [PtX(PPh)] and isocyanide [PtX(CNCy)] analogues have been prepared and evaluated as catalysts for the photocatalytic hydrosilylation of alkynes. Under violet light irradiation (λ = 400 nm), phosphine-isocyanides complexes [PtX(PPh)(CNCy)] gave high yields of silylated products (product yield up to 99%, TONs up to 1.98 × 10). The blue light irradiation (λ = 450 nm) was more suitable for the parent phosphine complexes [PtX(PPh)], which showed comparable efficiency (product yield up to 99%, TON up to 1.98 × 10), while isocyanide complexes [PtX(CNCy)] were not active.
一系列具有膦和异腈配体的铂配合物[PtX(PPh)(CNCy)]（X = Cl、Br和I）以及它们的母体膦[PtX(PPh)]和异腈[PtX(CNCy)]类似物已被制备并评估为炔烃光催化硅氢化反应的催化剂。在紫光照射（λ = 400 nm）下，膦-异腈配合物[PtX(PPh)(CNCy)]能得到高产率的硅氢化产物（产物产率高达99%，TON高达1.98×10）。蓝光照射（λ = 450 nm）更适合母体膦配合物[PtX(PPh)]，其表现出相当的效率（产物产率高达99%，TON高达1.98×10），而异腈配合物[PtX(CNCy)]则没有活性。
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