TY - JOUR
T1 - Photophysical properties of neutral and cationic tetrapyridinoporphyrazines
AU - Martí, Cristina
AU - Nonell, Santi
AU - Nicolau, Mónica
AU - Torres, Tomás
PY - 2000/1/1
Y1 - 2000/1/1
N2 - We describe the synthesis and photophysical properties of a series of neutral and cationic 3,4-tetrapyridinoporphyrazines, potential lead photosensitizers for photodynamic inactivation of bacteria. Tetracationic TPyPzs exist essentially as monomers in aqueous systems, but the presence of trialkylated compounds due to incomplete quaternization of the outer nitrogen atoms induces severe aggregation. The absorption, fluorescence, triplet, and singlet oxygen quantum yields for both the neutral and cationic compounds are comparable to those of the related phthalocyanines.
AB - We describe the synthesis and photophysical properties of a series of neutral and cationic 3,4-tetrapyridinoporphyrazines, potential lead photosensitizers for photodynamic inactivation of bacteria. Tetracationic TPyPzs exist essentially as monomers in aqueous systems, but the presence of trialkylated compounds due to incomplete quaternization of the outer nitrogen atoms induces severe aggregation. The absorption, fluorescence, triplet, and singlet oxygen quantum yields for both the neutral and cationic compounds are comparable to those of the related phthalocyanines.
UR - http://www.scopus.com/inward/record.url?scp=0033993330&partnerID=8YFLogxK
U2 - 10.1562/0031-8655(2000)0710053PPONAC2.0.CO2
DO - 10.1562/0031-8655(2000)0710053PPONAC2.0.CO2
M3 - Article
C2 - 10649889
AN - SCOPUS:0033993330
SN - 0031-8655
VL - 71
SP - 53
EP - 59
JO - Photochemistry and Photobiology
JF - Photochemistry and Photobiology
IS - 1
ER -