Femtosecond Transient Absorption Microspectroscopy of Benzil Confined Into a Single Bead of Porous Glass | Zendy

Christopher F. Porter | Zendy; Naoto Tamai | Zendy; Hiroshi Masuhara | Zendy

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Femtosecond Transient Absorption Microspectroscopy of Benzil Confined Into a Single Bead of Porous Glass

Author(s) -

Christopher F. Porter,

Naoto Tamai,

Hiroshi Masuhara

Publication year - 1996

Publication title -

laser chemistry

Language(s) - English

Resource type - Journals

eISSN - 1026-8014

pISSN - 0278-6273

DOI - 10.1155/1996/68401

Subject(s) - benzil , cyclohexane , chemistry , femtosecond , absorption (acoustics) , porosity , porous glass , solvent , chemical engineering , bead , polymer chemistry , analytical chemistry (journal) , chromatography , laser , optics , materials science , organic chemistry , catalysis , composite material , physics , engineering

The photophysical properties of benzil dissolved in free solution and in solution confined into a singlebead of porous glasses (size < 100 μm) were investigated by femtosecond transient absorption microspectroscopy.In nonpolar solvent, cyclohexane, the rate of conformational change from the skewed to thenear trans-planar form was reduced from 2.2 × 10 12 s -1 in free solution to 9.1 × 10 11 s -1 in porous glasses with an average pore diameter of 26 nm. In polar solvent, DMF, however, there was littledifference between the two systems.

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