Synthesis and Photophysical and Electrochemical Properties of Functionalized Mono-, Bis-, and Trisanthracenyl Bridged Ru(II) Bis(2,2′:6′,2″-terpyridine) Charge Transfer Complexes

Table 1

Photophysical properties and electrochemical data of RBT1, RBT2, and RBT3 complexes.

Complex	𝜆abs/nm (ε  × 10^3/M^−1 cm^−1)^a					𝜆em/(nm)^b	𝐸pa/V^c	𝐸1/2/V^c
RBT1	364 (15.1)	383 (19.4)	405 (17.4)	486 (5.3)	554 (1.9), 916 (1.1), 1012 (0.9)	681 (932)^i	0.30, 0.57, 0.85, 1.13	−0.25, −0.54
RBT2	364 (20.6)	383 (28.7)	404 (27.8)	484 (9.5)	554 (2.5), 916 (1.3), 1012 (1.2)	743 (754)^i	0.28, 0.71	−0.21, −0.46, −0.69
RBT3	360 (39.7)	380 (49.4)	402 (45.9)	481 (9.1)	554 (4.0), 916 (1.8), 1012 (2.2)	743 (754)^i	0.73, 0.99	−0.90

a,b(CH₃Cl/MeOH, 1 : 1, v/v), ^cfreshly distilled DMF containing 0.1 M TBABF₄ supporting electrolyte, ⁱemission intensity.