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Int. J. Mol. Sci. 2011, 12(9), 5552-5564; doi:10.3390/ijms12095552

Spectroscopic Behavior of Some A3B Type Tetrapyrrolic Complexes in Several Organic Solvents and Micellar Media

1
Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, 6 Traian Vuia Street, Bucharest 020956, Romania
2
“Ilie Murgulescu” Institute of Physical Chemistry, Romanian Academy, 202 Splaiul Independenţei, Bucharest 060021, Romania
*
Author to whom correspondence should be addressed.
Received: 20 June 2011 / Revised: 19 August 2011 / Accepted: 26 August 2011 / Published: 30 August 2011
(This article belongs to the Section Physical Chemistry, Theoretical and Computational Chemistry)
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Abstract

The paper presents spectral studies of some unsymmetrical A3B tetrapyrrolic, porphyrin-type complexes with Cu(II) and Zn(II) in different solvents and micellar media aimed at estimating their properties in connection with the living cell. The results indicate that the position of the absorption and emission peaks is mostly influenced by the central metal ion and less by the environmental polarity or the peripheric substituents of the porphyrinic core. The comparison between the overall absorption and emission spectra of the compounds in methanol or cyclohexane vs. direct and reverse Triton X micellar systems, respectively, suggests for all compounds the localization at the interface between the polyethylene oxide chains and the tert-octyl-phenyl etheric residue of the Triton X-100 molecules. These findings could be important when testing the compounds embedded in liposomes or other delivery systems to the targeted cell.
Keywords: unsymmetrical mesoporphyrinic complexes; micelles; solvatochromy; spectroscopy unsymmetrical mesoporphyrinic complexes; micelles; solvatochromy; spectroscopy
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Boscencu, R.; Ilie, M.; Socoteanu, R. Spectroscopic Behavior of Some A3B Type Tetrapyrrolic Complexes in Several Organic Solvents and Micellar Media. Int. J. Mol. Sci. 2011, 12, 5552-5564.

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