Effect of nitrogen pressure and nature of phosphine ligand on photochemical reaction of phosphine hydride complexes of tungsten with molecular nitrogenстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 17 апреля 2024 г.
Аннотация:Nitrogen complexes, in which the coordinated nitrogen is reduced to hydrazine under the influence of HCI, are formed when cyclohexane solutions of the phosphine hydride complexes of tungsten WH4L4, where L = PMePh2, PEtPh2, PEt2Ph, PPrPh2, PBuPh2, are irradiated in a nitrogen atmosphere. Raising the nitrogen pressure from 1 to 8-16 atm increases the yield of hydrazine by 6-7 times. The nature of the phosphine ligand exerts a strong effect on the yield of hydrazine. The highest yield of hydrazine is observed for the ethyl-substituted organophosphorus ligands PEtPh2 and PEt2Ph.