*2.2. Synthesis of CT Complexes PA-ChA and PA-DDQ*

#### 2.2.1. Preparation of PA-ChA Complex

A solution of PA (235 mg, 1 mmol) in 20 mL of methanol was added to a solution of ChA (209 mg, 1 mmol) in 20 mL of methanol. The reaction mixture was stirred for 3 h at 25 ◦C, filtered, washed with ice-cold acetonitrile (20 mL), and dried over anhydrous CaCl2. Purple solid (yield > 95%). Melting point, 193 ◦C. IR: ν (cm<sup>−</sup>1): 3523, 3440, 3270, 3151, 3002, 2715, 2670, 2600, 2529, 1637, 1576, 1530, 1500, 1436, 1381, 1344, 1288, 1173, 1124. 1030, 982, 875, 839, 777, 753, 653, and 571 cm<sup>−</sup>1. 1H-NMR (DMSO-*d6*, 400 MHz) δ: 9.10 (br, -NH), 8.32 (t, -NH), 7.59 (d, *J* = 8.8 Hz, 2H), 6.55 (d, *J* = 8.4 Hz, 2H), 3.54–3.50 (q, -N-CH2, 2H), 3.21–3.15 (m, 3 × -CH2, 6H), and 1.18 (t, *J* = 7.2 Hz, 2 × -CH3, 6H) ppm.

#### 2.2.2. Preparation of PA-DDQ Complex

A solution of PA (235 mg, 1 mmol) in 20 mL of methanol was added to a solution of DDQ (227 mg, 1 mmol) in 20 mL of methanol. The reaction mixture was stirred for 3 h at 25 ◦C. The solid formation was filtered, washed with ice-cold acetonitrile (20 mL), and dried over anhydrous CaCl2. Brown solid (yield > 95%). Melting point, 287 ◦C. IR: ν (cm<sup>−</sup>1): 3430, 3248, 2987, 2944, 2581, 2471, 2217, 1653, 1610, 1562, 1507, 1482, 1407, 1320, 1246, 1178, 1145, 1018, 961, 892, 867, 757, 680, and 625 cm<sup>−</sup>1. 1H-NMR (DMSO-*d6*, 400 MHz) δ: 11.00 (s, -OH), 10.05 (brs,-NH), 9.56 (s, -OH), 8.90 (t,-NH), 8.88 (t,-NH), 7.98 (d, *J* = 8.8 Hz, 1H), 7.88 (d, *J* = 8.4 Hz, 1H), 7.44 (d, *J* = 8.8 Hz, 1H), 7.20 (d, *J* = 8.4 Hz, 1H), 3.64 (quint, -N-CH2, 2H), 3.25–3.16 (m, 3 × -CH2, 6H), and 1.22 (t, *J* = 6.8 Hz, 2 × -CH3, 6H) ppm.
