Computed vertical absorption wavelengths (in nm) for the lowest singlet states of all compounds with the corresponding oscillator strengths and 2PA cross-sections (in GM). For the lowest state, we also report the vertical emission wavelength and the computed 0–0 wavelength. See the experimental section for details.

Compound	Vert. λabs	f	σ 2PA	Vert. λem	λ 0–0
1a	422	0.86	0	493	463
	352	0.00	94
	351	0.42	0
	322	0.26	0
1b	424	0.88	0	496	465
	351	0.38	0
	348	0.00	119
	314	0.23	0
1c	439	1.03	0	514	472
	367	0.00	122
	362	0.43	0
	336	0.34	0
1d	430	0.86	0	502	460
	362	0.42	0
	358	0.00	118
	330	0.30	0
1e	427	0.71	0	500	472
	372	0.00	74
	351	0.41	0
	335	0.41	0
1f	479	1.14	0	560	n.d.
	384	0.00	418
	379	0.39	0
	317	0.29	3
1g	494	1.17	0	572	534
	395	0.00	428
	394	0.43	0
	326	0.32	4
1h	424	1.04	0	541a	484
	418	0.00	6
	417	0.77	0
1i	489	2.33	0	572	524
	386	0.52	0
	373	0.01	1790
	343	0.353	1
1j	469	1.43	0	552	505
	410	0.00	82
	378	0.57	0
	346	0.50	0
	334	0.00	1760
1k	518	2.11	0	599	558
	405	0.57	0
	400	0.00	1600
	340	0.92	5
1l	516	2.26	0	597	560
	406	0.01	381
	395	0.61	1
	358	0.00	10 900

^aNearly dark state after optimization.