Photo-oxidation of alcohols by hexachlorometalate(IV) ions (M = Pt, Pd, or Ir): spin trapping and matrix isolation electron spin resonance studies
作者:Anand G. Fadnis、Terence J. Kemp
DOI:10.1039/dt9890001237
日期:——
Spin-trapping studies reveal that whereas the mild (λ > 380 nm) photolysis of ions [MCl6]2–(M = Pd, Pt, or Ir) in alcohol (RCH2OH)-water mixtures leads invariably to RĊHOH, in pure alcoholic media many of the oxidations lead to RCH2[graphic omitted]. Prolonged, wide-band photolysis leads to the production of H atoms. At 77 K, wide-band photolysis leads to the production of platinum(III) and palladium(III)
自旋捕集研究表明,尽管酒精(RCH 2 OH)-水混合物中的离子[MCl 6 ] 2–(M = Pd,Pt或Ir)的轻度(λ> 380 nm)光解作用总是导致RĊHOH,在纯酒精介质中,许多氧化反应会生成RCH 2 [未显示图形]。长时间的宽带光解导致产生H原子。在77K,宽波段光解导致产生铂(III)和钯(III)中心,可以通过鉴定克⊥特征,除了预期的Ç -centred有机基团。