2. Electronic Absorption Maxima (λ max, Nm) and Redox Potentials (V vs SCE) of Re[TpXPC](Y), for Y = Se, S, O, and NPh.
| Compound | λmax | E 1/2(ox2) | E 1/2(ox1) | E 1/2(red1) | E 1/2(red2) | ΔE | ref |
|---|---|---|---|---|---|---|---|
| Re[TpCF3PC](Se) | 280, 344, 393, 471, 577 | 1.58 | 1.14 | –1.16 | –1.69 | 2.30 | This work |
| Re[TpFPC](Se) | 280, 344, 391, 471, 574 | 1.45 | 0.98 | –1.17 | –1.70 | 2.15 | |
| Re[TPC](Se) | 282, 345, 393, 430, 577 | 1.44 | 0.95 | –1.20 | –1.74 | 2.15 | |
| Re[TpCH3PC](Se) | 280, 343, 393, 438, 577 | 1.43 | 0.94 | –1.21 | –1.77 | 2.15 | |
| Re[TpOCH3PC](Se) | 283, 346, 393, 439, 578 | 1.32 | 0.91 | –1.23 | –1.79 | 2.14 | |
| Re[TpCF3PC](S) | 276, 340, 393, 459, 571 | 1.59 | 1.07 | –1.15 | –1.68 | 2.22 | |
| Re[TpFPC](S) | 276, 341, 391, 459, 571 | 1.54 | 1.00 | –1.22 | –1.79 | 2.22 | |
| Re[TPC](S) | 277, 339, 391, 459, 572 | 1.52 | 0.96 | –1.23 | –1.80 | 2.19 | |
| Re[TpCH3PC](S) | 276, 339, 392, 459, 575 | 1.46 | 0.92 | –1.25 | –1.84 | 2.17 | |
| Re[TpOCH3PC](S) | 273, 344, 394, 459, 574 | 1.35 | 0.89 | –1.27 | –1.85 | 2.16 | |
| Re[TpCF3PC](O) | 438, 585 | - | 1.10 | –1.16 | - | 2.26 | 24 |
| Re[TpFPC](O) | 438, 585 | - | 1.01 | –1.23 | - | 2.24 | |
| Re[TPC](O) | 439, 585 | - | 0.98 | –1.26 | - | 2.24 | |
| Re[TpCH3PC](O) | 440, 587 | - | 0.94 | –1.29 | - | 2.23 | |
| Re[TpOCH3PC](O) | 441, 592 | - | 0.93 | –1.29 | - | 2.22 | |
| Re[TpCF3PC](NPh) | 434, 577 | 1.24 | 0.97 | –1.29 | - | 2.26 | 31 |
| Re[TpFPC](NPh) | 434, 575 | 1.15 | 0.88 | –1.36 | - | 2.24 | |
| Re[TPC](NPh) | 434, 576 | 1.18 | 0.86 | –1.38 | - | 2.24 | |
| Re[TpCH3PC](NPh) | 434, 578 | 1.12 | 0.82 | –1.40 | - | 2.22 | |
| Re[TpOCH3PC](NPh) | 435, 578 | 1.03 | 0.78 | –1.41 | - | 2.19 |