Time -Resolved Emission Spectroscopy of Pyrene Derivatives

• Autorzy: Dobkowski J. , Galievsky V. , Jasny J. , Sazanovich I.
• Języki publikacji: EN

Abstrakty

EN

An improved model of the picosecond time-resolved spectrofluorimeter equipped with an optical Kerr shutter was designed and constructed. The instrument was applied for measurements of time-resolved fluorescence (TRF) spectra of 4_-(pyrenyl-1-yl)acetophenone (Py-BK) and 4_-(pyrenyl-1-yl)benzonitrile (Py-BN). The experimental results indicate that both molecules relax after excitation by mutual twisting of two subunits towards a more planar geometry. In the case of Py-BK the kinetics of creation of excited state hydrogen-bonded complexes was discussed in detail.

Słowa kluczowe

EN

time-resolved spectroscopy; TICT model

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2004
• Tom: Vol. 78 / nr 7
• Strony: 961--972
• Opis fizyczny: Bibliogr. 16 poz., rys.

Twórcy

autor

Dobkowski J.

• Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

autor

Galievsky V.

• Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

autor

Jasny J.

• Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

autor

Sazanovich I.

• Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

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