Species	Media	Transition	λabs (nm)	f	MO contribution	CI (%)
PBT	Gas	S0→S1	340	0.3587	H→L	96.42
	Gas	S0→S2	283	0.4250	H-2→L	76.78
	Water	S0→S1	333	0.3713	H→L	95.88
	Water	S0→S2	284	0.1431	H-1→L	88.87
PBT1	Gas	S0→S1	395	0.0411	H→L	98.54
	Gas	S0→S2	313	0.7123	H-1→L	97.71
	Water	S0→S1	387	0.0367	H→L	98.52
	Water	S0→S2	310	0.7145	H-1→L	97.67
PBT2	Gas	S0→S1	336	0.4074	H→L	95.72
	Gas	S0→S2	288	0.0676	H-1→L	94.36
	Water	S0→S1	327	0.4735	H→L	94.92
	Water	S0→S2	294	0.0331	H-1→L	96.28