Ruthenium Pincer Complex and elecrtocatalyst for hydrogen evaluation
کد مقاله : 1082-CNF
نویسندگان
محمدحسین حسینی کوپایی *1، خدایار قلی وند2، سعید آباد3
1دانشگاه تربیت مدرسی شیمی معدنی
2دانشگا تربیت مدرس
3دانشگاه صنعتی اصفهان
چکیده مقاله
Ruthenium pincer complexes (RPC) were studied for various properties in catalysis, electrocatalisis, medicine and enviremental[16-21].Among different pincer ligands, the symmetric pincer ligands bearing two same lateral donor arms on the central donor unit have been synthesized in the early stage [1]. One of these ligands are P^N^P,s, classified in aliphatic or aromatic structure based on their backbone [2]. PNP pincer ligands that includ triazine backbone, and phosphorus coordinating group were broadly used in transition metal chemistry [3].
In this study, ruthenium pincer complexes {[Ru(PNP–Ph)Cl2(PPh3)] (1) based on PNP-Ph (N, N´-Bis(diphenylphosphino)-2,6-diamino-4-phenyl-1,3,5-triazine) was prepared. The pincer ligands and complexes were characterized by FT-IR, UV-Vis, 1H NMR, 13C NMR, and 31P NMR. The pincer complexe was used as a homogeneous electrocatalyst to Hydrogen evolution reaction in acetonitrile solution. Cyclic voltammetry studies on HER reaction, demonstrate that increasing concentration of HCl, causes an increase in
current density, a good evidence to H2 evolution. High electrocatalitical properties were observed using the PNP pincer complexes for hydrogen evolution
کلیدواژه ها
ruthenium PNP pincer complex / Homogeneous electrocatalysis/ triazine ligand/ HER reaction
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