Table 1. Percentage Hypochromicity and Red Shift of the Soret Bands of o-, m-, and p-trans-BMPyPs and o-, m-, and p-TMPyPs in an Aqueous Buffer Solution and under PEG Conditions upon Binding to DNA.
| aqueous |
PEG |
||||
|---|---|---|---|---|---|
| compounds | R | hypochromism (%) | red shift (nm) | hypochromism (%) | red shift (nm) |
| BMPyP | ortho- | 26.30 | 4.2 | 6.05 | 0.8 |
| meta- | 58.20 | 8.8 | 27.00 | 0.3 | |
| para- | 54.64 | 3.6 | 28.74 | 1.1 | |
| TMPyP | ortho- | 10.36 | 3.3 | 21.59 | 1.8 |
| meta- | 54.17 | 15.6 | 40.53 | 11.8 | |
| para- | 48.38 | 13.0 | 41.33 | 7.5 | |