Tabulated absorption wavelengths (nm) and major contribution with oscillator strength for the studied dyes in their acetone, ethanol, gas and water phases.

Excitation	Wavelength (nm)	Energy (eV)	Oscillator strength	Major contribution (%)	Assignment
Dye A
Acetone
S0 → S1	505.81	2.4512	0.355	H → L (96.24%)	π → π*
S0 → S2	489.65	2.5321	0.054	H−1 → L (57.73%)	n → π*
S0 → S3	400.52	3.0956	0.079	H → L+1 (72.17%)	n → π*
Ethanol
S0 → S1	512.85	2.4175	0.368	H → L (97.47%)	π → π*
S0 → S2	491.97	2.5202	0.040	H−1 → L (59.78%)	n → π*
S0 → S3	410.24	3.0222	0.040	H → L+1 (87.51%)	n → π*
Gas
S0 → S1	495.50	2.5022	0.018	H−1 → L (70.16%)	π → π*
S0 → S2	483.66	2.5635	0.322	H → L (79.89%)	n → π*
S0 → S3	385.25	3.2183	0.255	H−2 → L (58.31%)	n → π*
Water
S0 → S1	515.17	2.4067	0.358	H → L (97.53%)	π → π*
S0 → S2	492.24	2.9931	0.040	H−1 → L (58.25%)	n → π*
S0 → S3	414.23	2.9931	0.040	H → L+1 (89.27%)	n → π*
Dye B
Acetone
S0 → S1	487.31	2.5443	0.0598	H → L (96.24%)	π → π*
S0 → S4	314.97	3.9364	0.3518	H−1 → L (58.81%)	n → π*
S0 → S5	292.48	4.2391	0.4152	H → L+2 (65.99%)	n → π*
Ethanol
S0 → S2	371.59	3.3412	0.8708	H → L (69.83%)
S0 → S4	315.84	3.9255	0.3740	H−1 → L (62.76%)
S0 → S5	292.01	4.2459	0.3993	H → L (67.87%)
Gas
S0 → S2	349.76	3.5449	0.8057	H → L (69.49%)	n → π*
S0 → S4	311.85	3.9757	0.0836	H−2 → L (30.31%)	n → π*
S0 → S5	294.23	4.2139	0.6149	H → L+2 (38.79%)	π → π*
Water
S0 → S2	371.74	3.3353	0.8537	H → L (69.78)
S0 → S3	314.86	3.9377	0.0022	H−1 → L (63.91)
S0 → S5	291.28	4.2565	0.3891	H → L+2 (67.87)
Dye C
Acetone
S0 → S1	505.81	2.4512	0.3558	H → L (96.24%)	π → π*
S0 → S2	489.65	2.5321	0.0543	H−1 → L (57.73%)	n → π*
S0 → S3	400.52	3.0956	0.0791	H → L+1 (72.17%)	n → π*
Ethanol
S0 → S1	512.85	2.4175	0.3686	H → L (97.47%)	π → π*
S0 → S2	491.97	2.5202	0.0430	H−1 → L (59.78%)	n → π*
S0 → S3	410.24	3.0222	0.0403	H → L+1 (87.51%)	n → π*
Gas
S0 → S1	495.50	2.5022	0.0187	H−1 → L (70.06%)	π → π*
S0 → S2	483.66	2.5635	0.3228	H → L (79.89%)	n → π*
S0 → S3	385.25	3.2183	0.2550	H−2 → L (58.31%)	n → π*
Water
S0 → S1	515.17	2.4067	0.3587	H → L (97.53%)	π → π*
S0 → S2	492.24	2.5188	0.0407	H → L (58.25%)	n → π*
S0 → S3	414.23	2.9931	0.0409	H → L+1 (89.27%)	n → π*
Dye D
Acetone
S0 → S1	542.60	2.2850	0.1455	H−1 → L (59.79%)	π → π*
S0 → S2	450.68	2.7510	0.4527	H → L (65.39%)	n → π*
S0 → S3	353.24	3.5099	0.5240	H−2 → L (83.44%)	n → π*
Ethanol
S0 → S1	542.49	2.2855	0.1463	H−1 → L (59.88%)	π → π*
S0 → S2	451.08	2.7486	0.4517	H → L (65.55%)	n → π*
S0 → S3	353.39	3.5084	0.5260	H−3 → L (83.67%)	n → π*
Gas
S0 → S1	552.60	2.2437	0.0786	H → L (46.63%)	π → π*
S0 → S2	417.84	2.9673	0.4323	H−1 → L (48.92%)	n → π*
S0 → S3	368.22	3.3672	0.0003	H−3 → L (83.67%)	n → π*
Water
S0 → S1	541.76	2.2886	0.1450	H−1 → L (60.48%)	π → π*
S0 → S2	451.84	2.7440	0.4426	H → L (66.30%)	n → π*
S0 → S3	353.63	3.5060	0.5259	H−3 → L (84.02%)	n → π*