CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Laser Flash Photolysis Study on Electron Transfer Oxidation Reaction of Tryptophan or Tyrosine with Triplet State Vitamin K-3
Tang, RZ(唐睿智); Li, HX(李海霞); Liu, YC(刘艳成); Zhang, P(张鹏); Cao, XY(曹西艳); Wang, WF(王文锋)
2012
Source PublicationACTA PHYSICO-CHIMICA SINICA
ISSN1000-6818
Volume28Issue:1
AbstractLaser flash photolysis was used to study the photosensitized oxidation mechanism of vitamin K-3, commonly known as 2-methyl-1,4-naphthoquinone (MQ), with tryptophan (TrpH) or tyrosine (TyrOH) in acetonitrile/water (1:1, V/V) solution. The triplet state of MQ reacted with TrpH or TyrOH by electron transfer with the formation of a MQ anion radical, which was directly observed in the transient absorption spectrum. The rate constants of the electron transfer reactions were determined to be 1.1 x 10(9) and 0.6 x 10(9) L.mol(-1).s(-1) for TrpH and TyrOH, respectively. The free energy changes (Delta G) of the reactions showed that the proposed electron transfer steps are thermodynamically feasible.
Language英语
Funding Project应物所项目组
WOS IDWOS:000299721900030
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13206
Collection中科院上海应用物理研究所2011-2020年
Recommended Citation
GB/T 7714
Tang, RZ,Li, HX,Liu, YC,et al. Laser Flash Photolysis Study on Electron Transfer Oxidation Reaction of Tryptophan or Tyrosine with Triplet State Vitamin K-3[J]. ACTA PHYSICO-CHIMICA SINICA,2012,28(1).
APA Tang, RZ,Li, HX,Liu, YC,Zhang, P,Cao, XY,&Wang, WF.(2012).Laser Flash Photolysis Study on Electron Transfer Oxidation Reaction of Tryptophan or Tyrosine with Triplet State Vitamin K-3.ACTA PHYSICO-CHIMICA SINICA,28(1).
MLA Tang, RZ,et al."Laser Flash Photolysis Study on Electron Transfer Oxidation Reaction of Tryptophan or Tyrosine with Triplet State Vitamin K-3".ACTA PHYSICO-CHIMICA SINICA 28.1(2012).
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