SINGLET OXYGEN PRODUCTION FROM SINGLET AND TRIPLET-STATES OF 9,10-DICYANOANTHRACENE
SINGLET OXYGEN PRODUCTION FROM SINGLET AND TRIPLET-STATES OF 9,10-DICYANOANTHRACENE
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DOI：
10.1021/ja00028a040
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发表时间：
1992-01-15
影响因子：
15
通讯作者：
FOOTE, CS
中科院分区：
文献类型：
--
作者：
KANNER, RC;FOOTE, CS
研究了9，10-二氰基菲(DCA)在苯和乙腈中产生单态氧(O-1(2))的机理和量子产率，DCA的单态和三态都能产生O-1(2)。由2，5-二甲基碘苯(DMIB)促进的系间交叉提供了一条通往3DCA的直接途径，并允许测定3DCA和1DCA对O-1(2)产生的单独贡献。在某些条件下，增强的系统间交叉可以使三重态途径成为主要途径，并可导致O-1(2)的高量子产率。
The mechanism and quantum yield of singlet oxygen (O-1(2)) production by 9, 10-dicyanoanthracene (DCA) has been investigated in benzene and acetonitrile; O-1(2) is produced from both the singlet and triplet states of DCA. Intersystem crossing enhanced by 2,5-dimethyliodobenzene (DMIB) provided a direct route to 3DCA and allowed determination of the individual contributions of 3DCA and 1DCA to O-1(2) production. Enhanced intersystem crossing can make the triplet pathway a major route under some conditions and can result in high quantum yields of O-1(2).