Photophysical properties of neutral and cationic tetrapyridinoporphyrazines

Cristina Martí; Santi Nonell; Mónica Nicolau; Tomás Torres

doi:10.1562/0031-8655(2000)0710053PPONAC2.0.CO2

Photophysical properties of neutral and cationic tetrapyridinoporphyrazines

Cristina Martí, Santi Nonell, Mónica Nicolau, Tomás Torres

Producció científica: Article en revista indexada › Article › Avaluat per experts

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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.

Idioma original	Anglès
Pàgines (de-a)	53-59
Nombre de pàgines	7
Revista	Photochemistry and Photobiology
Volum	71
Número	1
DOIs	https://doi.org/10.1562/0031-8655(2000)0710053PPONAC2.0.CO2
Estat de la publicació	Publicada - 1 de gen. 2000

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10.1562/0031-8655(2000)0710053PPONAC2.0.CO2

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title = "Photophysical properties of neutral and cationic tetrapyridinoporphyrazines",

abstract = "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.",

keywords = "Langmuir-blodgett-films, Gram-negative bacteria, Molecular-oxygen, Quantum yields, To-face, Porphyrins, Phthalocyanines, Photosensitizers, Water, Metal",

author = "Cristina Mart{\'i} and Santi Nonell and M{\'o}nica Nicolau and Tom{\'a}s Torres",

year = "2000",

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doi = "10.1562/0031-8655(2000)0710053PPONAC2.0.CO2",

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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.

KW - Langmuir-blodgett-films

KW - Gram-negative bacteria

KW - Molecular-oxygen

KW - Quantum yields

KW - To-face

KW - Porphyrins

KW - Phthalocyanines

KW - Photosensitizers

KW - Water

KW - Metal

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U2 - 10.1562/0031-8655(2000)0710053PPONAC2.0.CO2

DO - 10.1562/0031-8655(2000)0710053PPONAC2.0.CO2

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AN - SCOPUS:0033993330

SN - 0031-8655

VL - 71

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JO - Photochemistry and Photobiology

JF - Photochemistry and Photobiology

IS - 1

ER -

Photophysical properties of neutral and cationic tetrapyridinoporphyrazines

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