Abstract
Steric encumbrance caused by the tripodal ligand in the ternary tris(3-phenylpyrazolyl)borate copper(II) heterocyclic base complexes [Cu(B)(TpPh)](ClIO4) (B = dipyridoquinoxaline, dipyridophenazine) leads to efficient cleavage of supercoiled DNA to its relaxed form upon exposure to red light at 632.8 and 694 nm as a result of protection of the photosensitizer in the molecular bowl of the {Cu(TpPh)} moiety, which generates singlet oxygen as the reactive species in a type-II process.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2582-2584 |
| Number of pages | 3 |
| Journal | Inorganic Chemistry |
| Volume | 44 |
| Issue number | 8 |
| DOIs | |
| State | Published - Apr 18 2005 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry
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Cite this
Dhar, S., & Chakravarty, A. R. (2005). Photosensitizer in a molecular bowl: Steric protection enhancing the photonuclease activity of copper(II) scorpionates. Inorganic Chemistry, 44(8), 2582-2584. https://doi.org/10.1021/ic050085a