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Molecules 2012, 17(5), 5592-5603; doi:10.3390/molecules17055592
Article

Microwave Synthesis Under Solvent-Free Conditions and Spectral Studies of Some Mesoporphyrinic Complexes

Received: 20 March 2012 / Revised: 4 May 2012 / Accepted: 7 May 2012 / Published: 10 May 2012
(This article belongs to the Special Issue Solvent-Free Synthesis)
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Abstract

A series of A3B and A4 type mesoporphyrinic complexes were synthesized with superior yields using microwave irradiation under solvent-free conditions. The structures of the complexes were confirmed using elemental analysis, FT-IR, UV-Vis, EPR and NMR spectral data. The influence of environmental polarity on spectral properties of the mesoporphyrinic complexes was investigated. The obtained results indicate that the shape of absorption and fluorescence spectra does not depend on the solvent polarity under the experimental conditions used. The small shifts of the absorption and emission maximums that occur by increasing of solvent polarity reflects the physical interaction between the porphyrinic substituents and the solvent molecules.
Keywords: solvent-free synthesis; mesoporphyrinic complexes; microwave assisted synthesis; solvatochromism solvent-free synthesis; mesoporphyrinic complexes; microwave assisted synthesis; solvatochromism
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Boscencu, R. Microwave Synthesis Under Solvent-Free Conditions and Spectral Studies of Some Mesoporphyrinic Complexes. Molecules 2012, 17, 5592-5603.

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