Table 1. UV–visible Spectral Data for Dicyanidocobalt(III) 5,15-Bis(p-nitrophenyl)-10-(p-X-phenyl)corroles Generated In Situ from Precursors S1–S6 (See Scheme 2 for Structures) and TBACN (100 equiv) in PhCNa.
| λ, nm (ε × 10–4 M–1 cm–1) | |||||
|---|---|---|---|---|---|
| precursor | Xb | σp | visible region | NIR region | |
| S1 | NO2 | 0.78 | 438 (3.1) | 591 (1.8) | 798 (2.2) |
| S2 | CF3 | 0.54 | 447 (3.3) | 576 (1.2) | 807 (1.9) |
| S3 | CO2CH3 | 0.45 | 448 (3.2) | 581 (1.2) | 809 (2.0) |
| S4 | H | 0.00 | 445 (3.3) | 581 (1.0) | 826 (1.8) |
| S5 | OCH3 | –0.27 | 445 (3.4) | 581 (0.9) | 834 (1.8) |
| S6 | N(CH3)2 | –0.83 | 445 (3.4) | 583 (0.9) | 847 (1.6) |
a
The diagnostic inverse hypercorrole maxima are indicated in bold.
b
X = the para substituent at the 10-meso phenyl position.