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7-Substituted pyridines fluorescence properties

The one- and two-photon excited fluorescence property and crystal structure of a substituted stilbene-type compound frans-4-diethylamino-4 -bromostilbene (DEARS) has been reported [17]. Results indicate that this compound has a strong two-photon-exdted blue fluorescence at 440 nm when the 700 nm laser is used as the pump source. The one- and two-photon absorption and fluorescence properties of a free radical photopolymerization initiator, ( , )-4- 2-[p -(]yf,N-di-w-butylamino)stil-ben-p-yl]vinyl pyridine (Figure 3.8), in various solvents have been investigated [18]. The dye has a moderate two-photon absorption cross section of = 0.91 x 10 cm s/photon at 532 nm. This compound showed a strong two-photon-induced blue fluorescence of432 nm when pumped with 800 nm laser irradiation. Quantum chemical calculation indicated that the new initiator possesses a large delocalized... [Pg.74]

See other pages where 7-Substituted pyridines fluorescence properties is mentioned: [Pg.22]    [Pg.1081]    [Pg.229]    [Pg.263]    [Pg.2920]    [Pg.255]    [Pg.123]    [Pg.651]    [Pg.357]    [Pg.128]    [Pg.128]    [Pg.485]    [Pg.123]    [Pg.206]    [Pg.351]    [Pg.351]   
See also in sourсe #XX -- [ Pg.22 , Pg.83 ]

See also in sourсe #XX -- [ Pg.22 , Pg.83 ]

See also in sourсe #XX -- [ Pg.22 , Pg.83 ]

See also in sourсe #XX -- [ Pg.22 , Pg.83 ]



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7-Substituted pyridines

Pyridines substitution

Substituted properties

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