Photophysical Properties of Neutral and Cationic Tetrapyridinoporphyrazines

Cristina Martí; Santi Nonell; Mónica Nicolau; Tomás Torres

doi:10.1562/0031-8655(2000)071<0053:PPONAC>2.0.CO;2

We can help you reset your password using the email address linked to your BioOne Complete account.

Registered users receive a variety of benefits including the ability to customize email alerts, create favorite journals list, and save searches. Please note that a BioOne web account does not automatically grant access to full-text content. An institutional or society member subscription is required to view non-Open Access content. Contact helpdesk@bioone.org with any questions.

All Fields are Required

First Name

Last/Family Name

Password

Password Requirements: Minimum 8 characters, must include as least one uppercase, one lowercase letter, and one number or permitted symbol Valid Symbols for password:
~ Tilde
! Exclamation Mark
@ At sign
$ Dollar sign
^ Caret
( Opening Parenthesis
) Closing Parenthesis
_ Underscore
. Period

Confirm Password

Web Account created successfully

Cristina Martí,¹ Santi Nonell,^1,* Mónica Nicolau,² Tomás Torres^2,*

¹aInstitut Químic de Sarrià, Universitat Ramon Llull, Barcelona, Spain
²bDpto. Química Orgánica C-I. Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain

^**To whom correspondence should be addressed at: Institut Químic de Sarrià, Universitat Ramon Llull, Via Augusta, 390, E-08017 Barcelona (Spain); nonel@iqs.url.es

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.

Citation Download Citation

Cristina Martí, Santi Nonell, Mónica Nicolau, and Tomás Torres "Photophysical Properties of Neutral and Cationic Tetrapyridinoporphyrazines," Photochemistry and Photobiology 71(1), 53-59, (1 January 2000). https://doi.org/10.1562/0031-8655(2000)071<0053:PPONAC>2.0.CO;2

Received: 30 July 1999; Accepted: 1 October 1999; Published: 1 January 2000