Table 1. Chiroptical properties (g_abs, δΔε and g_lum), without and with cations ^{a , b} .

Compound	Enantiomer	λ abs (nm)	g abs (10–4)		δΔε c (M–1 cm–1)	λ em (nm)	g lum (10–2)
			Without Mn+	With Mn+			Without Mn+	With Mn+ d
Pyrene-18C6	(–) e	345	–3.9	+1.6	30	490	+0.9	n.d.
	(+) f		+3.9	–1.6			–0.88	n.d.
Pyrene-18C4	(–) e	348	–10	+5.2	45	481	–1.0	n.d.
	(+) f		+9.2	–5.4			+0.99	n.d.
Pyrene-16C4	(–) e	342	–0.83	+4.6	11	491	+1.7	n.d.
	(+) f		+0.6	–4.6			–1.8	n.d.
Perylene-18C6	(–) e	446	+1.2	+5.5	21	543 g	+0.3	+0.05
	(+) f		–1.3	–5.5			–0.3	–0.05
Perylene-18C4	(+) e	446	+5.2	+23	12	536 g	+0.6	+0.04
	(–) f		–5.4	–24			–0.6	–0.04
Perylene-16C4	(+) e	446	+1.6	+3.3	8	544 g	–0.4	+0.02
	(–) f		–1.8	–3.6			+0.4	–0.02
Fluorene-18C6	(–) e	314	–3.6	+5.6	23	337	—	—
	(+) f		+3.5	–5.6			—	—
Fluorene-18C4	(–) e	315	<0.1	+6.3	6	338	—	—
	(+) f		<0.1	–6.7			—	—
Fluorene-16C4	(+) e	316	+3.3	+6.3	6	336	—	—
	(–) f		–3.5	–6.5			—	—
NMI-18C6	(–) e	398	+2.6	+0.2	3	485	+0.82	n.d.
	(+) f		–2.5	–0.2			–0.86	n.d.

^aBa(ClO₄)₂/CH₃CN system used for 18C6 derivatives, NaBAr_F/CH₂Cl₂ system used for 18C4 and 16C4 compounds, g_abs and g_lum are calculated on reported λ_abs and λ_em respectively (unless otherwise stated).

^bn.d. = not detected.

^cAs defined by eqn (1).

^dDetermined on the monomer emission band.

^eFirst eluted.

^fSecond eluted.

^g λ associated with excimer emission.