Singlet Oxygen Generation and Spectroscopic Properties of Supramolecular Zinc Meso-tetra(4-pyridyl) Porphyrin Bearing Outlying Ruthenium Groups

Author(s)

Lopes, J. M. S. ; Costa, S. N. ; Silveira-Alves Jr, E. ; Batista, A. A. ; Dinelli, L. R. ; Goncalves, P. J. ; Araujo, P. T. ; Barbosa Neto, N. M.

• Document type: Journal article
• Source: Brazilian Journal of Physics; v. 52, n. 5, p. 9-pg., 2022-10-01.

Abstract

Here, we investigate the effects introduced in the spectroscopic properties and singlet oxygen generation efficiency of zinc tetra(4-pyridyl) porphyrin (ZnTPyP) when the molecule undergoes outlying decoration with the [RuCl2(PPh3)(2)(CO)(DMF)] and [RuCl2(dppb)(CO)(DMF)] ruthenium complexes. Our results show that these metallic compounds can significantly affect the electronic and vibronic B- and Q-bands; the excited-state deactivation processes; and the singlet oxygen generation quantum yield of the porphyrin, being their influence affected by the ligands present in the ruthenium complexes. (AU)

• FAPESP's process: 14/50869-6 - INCT 2014: on Organic Electronics
• Grantee: Roberto Mendonça Faria
• Support Opportunities: Research Projects - Thematic Grants