Table 1. Photophysical Properties of Pd[DMBil1], Pd[DMBil1]–PEG750 and Pd[DMBil1]–PEG5000–SH.
| compound (solvent) | λabs/nm (ε × 103 M–1 cm–1) | λfl/nm (Φfl) | λphos/nm (Φphos) | ΦΔ |
|---|---|---|---|---|
| Pd[DMBil1] (methanol) | 401 (16.5), 483 (29.2), 540 (7.2) | 557 (1.3 × 10–4) | 753 (1.3 × 10–4) | b0.80 |
| Pd[DMBil1]–PEG750 (methanol) | 402 (16.6), 483 (34.6), 540 (7.5) | 568 (1.4 × 10–4) | 756 (7.8 × 10–5) | b0.57 |
| Pd[DMBil1]–PEG5000–SH (methanol) | 402 (17.6), 481 (35.3), 543 (8.7) | 511 (3.1 × 10–4) | 755 (6.1 × 10–5) | b0.66 |
| Pd[DMBil1]–PEG750 (Milli-Q water) | 398 (15.6), 495 (35.8), 551 (11.8) | a580 (2.0 × 10–4) | c0.13 | |
| Pd[DMBil1]–PEG5000–SH (Milli-Q water) | 400 (13.7), 488 (29.5), 546 (10.1) | 585 (1.3 × 10–4) | c0.48 |
a
Measured in pH 7.4 phosphate buffered saline.
b
Measured after irradiation with λexc = 500 nm.
c
Measured after irradiation with λexc = 550 nm.