Title of article
Femtosecond transient absorption spectroscopy of non-substituted photochromic spirocompounds
Author/Authors
Antipin، نويسنده , , S.A. and Petrukhin، نويسنده , , A.N. and Gostev، نويسنده , , F.E. and Marevtsev، نويسنده , , V.S. and Titov، نويسنده , , A.A. and Barachevsky، نويسنده , , V.A. and Strokach، نويسنده , , Yu.P. and Sarkisov، نويسنده , , O.M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
9
From page
378
To page
386
Abstract
Primary processes in spironaphtopyran (SNP), spironaphtoaxazine (SNO) and spirophenantrooxazine (SPO) after excitation by the femtosecond light pulse with the carrier wavelength 308 nm were studied by the absorption `pump-probeʹ method with femtosecond time resolution. Probing was performed by means of the super-continuum light pulse with the carrier wavelength in the range 420–580 nm. Registration of the photoinduced absorption spectra dynamics allowed to observe time evolution of all intermediates. It appeared that photoinduced transformation of all three compounds has the same mechanism. Kinetic scheme is suggested and all rate constants entering this scheme are determined.
Journal title
Chemical Physics Letters
Serial Year
2000
Journal title
Chemical Physics Letters
Record number
1774026
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