Preparation of cationic chlorophyll-a derivative linked with poly(4-vinylpyridine) by using a Barluenga reagent and physical properties of the polymeric conjugates
Abstract
Abstract A chlorophyll- a (Chl- a ) derivative possessing the C3-vinyl group, methyl pyropheophorbide- a was conjugated to poly(4-vinylpyridine) (P4VP) through a C3 1 –N + bond by a well-established oxidative addition reaction using a Barluenga reagent. Because of the decreased solubility of the Chl–P4VP + conjugate with an increase in the cationic pyridinium content, the maximum incorporation of methyl pyropheophorbide- a was limited to 14 mol% for the pyridyl units. The optical properties of the conjugates were specifically dependent on the additive chlorin π-system. Intramolecular fluorescence quenching of the photoexcited Chl moiety was observed in the individual polymeric conjugates. Graphical abstract
Fields of Study & Subjects
Porphyrin and Phthalocyanine Chemistry
Photodynamic Therapy Research Studies
Photochemistry and Electron Transfer Studies
Publication details
- Journal / source
- Research on Chemical Intermediates
- Volume
- 52
- Issue
- 3
- Pages
- 1921–1932
- Publication date
- 16 January 2026
- Language
- EN