. Author manuscript; available in PMC: 2010 Nov 25.

Published in final edited form as: Tetrahedron Lett. 2009 Nov 25;50(47):6442–6445. doi: 10.1016/j.tetlet.2009.08.130

Table 1.

Photophysical properties of dyads 1 – 5 in EtOH.

dye	λ_abs(nm)	λ_em.(nm)	Stokes Shift (nm)	Φ_D	Φ_A^c	ETE % (Φ_D/Φ_A)
1	498, 561	648	150	0.31+/− 0.02^a	0.40+/− 0.03	77
2	495, 546	644	149	0.34+/− 0.01^a	0.38+/− 0.01	89
3	515, 555	645	130	0.36+/− 0.03^b	0.43+/− 0.02	83
4	506, 553	632	126	0.41+/− 0.02^b	0.49+/− 0.02	81
5	501, 541	624	123	0.36+/− 0.02^b	0.37+/− 0.01	97

Φ_D values correspond to excitation of dyads at the donor absorption maxima; Φ_A relates to excitation of dyads at the acceptor absorption maxima. Standards used for the quantum yield measurements:

fluorescein in 0.1 M NaOH (Φ0.92),

rhodamine 6G in EtOH (Φ0.94),

rhodamine 101 in EtOH (Φ1.0). Quantum yield measurements were repeated three times and averaged.