Spectral Properties of Dyes with Interfragmental Charge Transfer: Solvatochromism and Solvatofluorochromism of 2-(3-Coumaroyl)-benzopyrylium Perchlorates

Table 5

Results of regression analysis of the dependence between the fluorescent characteristics and the Koppel-Palm and Kamlet-Taft solvent parameters^a.

	Regression equations			Standard dyes^b
				I		6	0.996	[11]	[12]
II	No dependences	—	—	[11]	[13]
III		9; 9	0.922; 0.901	[11]	[12]
IV		8; 8; 8	0.831; 0.973; 0.894	[11]	[13]
V		8; 6	0.712; 0.919	[14]	[15]
VI		8; 8; 10; 11	0.764; 0.870; 0.922; 0.838	[14]	[15]
VII		7; 7	0.995; 0.931	[14]	[15]

All the designations are given in the text and in Table 4.
^bPublication references [11–15] concerning standard dyes used for the determination of quantum yields and fluorescence lifetimes.