Table 1.

Measured (λ_max) and calculated (λ_max,DFT) absorbance maxima, molar absorptivity (ε), fluorescence quantum yield (Φ_F), lifetimes (τ_F), solubility in cyclohexane, and enthalpy (ΔH_m) and entropy (ΔS_m) of melting for as‐synthesized powders of all alkylperylenes (in brackets: material solidified from DCM). Also, calculated dihedral angle (φ), and measured melting points

Entry	λmax DFT [nm]	Photophysical properties in cyclohexane				Dihedral angle [°]	Solubility [g L‐1]	∆Hm a) [kJ mol‐1]	∆Sm a) [J mol‐1 K‐1]	Melting point [°C]
		λmax [nm]	ε [M‐1 cm‐1]	ΦF	τF [ns]					measuredb)	Lit.
1	445	434	38 500	0.94	4.01	0	0.2	30	54	278	281[[qv: 17b]]
2a	435	428	30 700	0.95	4.1	22.8	15.9	8 (14)	22 (41)	70 (66)	60–70[[qv: 17b]]
2b	435	427	30 200	0.95	4.01	23.0	12.2	17 (15)	48 (42)	82 (84)	84–85[[qv: 17b]]
2c	436	427	26 200	0.95	4.2	24.9	11.3	26	67	117
2d	435	428	30 700	0.94	4.1	23.0	19.8	22 (26)	65 (78)	71 (73)
2e	437	429	25 500	0.94	4.2	22.7	16.8	25	78	56
2f	437	427	27 400	0.91	4.1	25.2	12.5	20	50	121
2g	451	443	28 300	0.93	4.1	0.3	3.4	21	51	131
2h	449	441	26 900	0.96	4.0	3.6	1.2	22	44	222
2i	437	437	25 700	0.96	4.1	0	18.7	19	32	341	36033
2j	443	436	29 900	0.95	4.0	0	9.3	11	28	146	145–14633

^a)Calculated using Equation (1), assuming 100% crystallinity.

^b)Peak values. Onset and offset values are shown in Table S3, Supporting Information.