Table 3. General properties of pHP photocages, highlighting the effect of adding electron-donating groups to the ring (Klán et al., 2013 ▸).

The ligand released by photocleavage is represented by LG.

λmax (nm)	285	280	304
ɛmax (M −1 cm−1)	∼15000	∼9000	∼12000
φ	0.2–0.9	0.03–0.04	0.03
k (s−1)	1 × 107 to 2 × 109	∼2 × 109	∼2 × 107
Solubility (H2O)	Good	Good	Good