Table 3. Spectroscopic and Photophysical Properties of 2,2′:6′,2″-Terpyridine and Complexes 1 and 2.
| λabs [nm] (ε[mol–1 L cm–1]) in CH3CN (298 K) | λabs [nm] in solid (298 K) | λem(λexc)[nm]/<τ>(ns) in solid (77 K) | λem(λexc)[nm]/<τ>(ns) in CH3CN (298 K) | |
|---|---|---|---|---|
| 2,2′:6′,2″-terpyridine | 234 (20094) | 246, 280, 313 | 369 (344) | 339, 355(333) |
| 278 (18992) | ||||
| [Au(C6F5)(η1-terpy)] (1) | 228 (34621) | 240, 283, 310 | 491(343)/10 | 340, 355(333) |
| 277 (20713) | ||||
| [Au(C6F5)(η3-terpy)](PF6)2 (2) | 218 (50585) | 237, 282, 360 | 339, 360, 391(317)a/2.6b | |
| 283 (13216) | ||||
| 351 (8953) |
a
Concentration 4 × 10–4 M.
b
Band at 391 nm.