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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 13, Number 1
BKCSDE 13(1)
January 20, 1992

Title	Picosecond Photoionization Processes of N,N,N',N'-Tetramethyl-p-phenylenediamine (TMPD) in Water
Author	Minyung Lee*, Du-Jeon Jang, Dongho Kim, Sun Sook Lee, Bong Hyun Boo
Keywords
Abstract	Photoionization processes of TMPD in H2O and D2O were studied, by measuring steady-state absorption, emission, fluorescence excitation spectra, and fluorescence lifetimes on picosecond time scale. The steady-state absorption spectra showed that there exists a cation-ion pair (Wurster's Blue) in H2O and in D2O in the electronic ground state. Temperature and excitation wavelength dependence were also studied and the results show that the photoionization reaction in water is an activated process and the fluorescence lifetime is independent of the vibrational excess energy in the uv excitation range of 283-310 nm.
Page	17 - 20
Full Text	PDF

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