Dr. Jorge Peón Peralta


Department of Physical Chemistry

Address: Circuito Exterior s/n, Ciudad Universitaria. District Coyoacán. ZIP Code 04510 Mexico City. Mexico

Telephone: (+52) (55) 56-22-45-08
Fax: (+52) (55) 56-16-22-17





Dr. Jorge Peon obtained his bachelor’s degree in Chemistry from the National Autonomous University of México, and his Ph.D. in Physical Chemistry from The Ohio State University, USA. He also made postdoctoral studies at the California Institute of Technology USA. He joined the Institute of Chemistry of the National University of Mexico in 2003.


Studies of the dynamics of electronically excited states of molecules, including: ionization phenomena, internal conversion, energy transfer, electron transfer, proton transfer and photochemical transformations.


Graduated students: 8 BSc, 7 MSc, and 4 PhD.

Students interested in Dr. Peon's supervision for thesis (graduate and undergraduate), social work, research summer or professional practices are welcomed.


He has been an invited speaker at several international conferences, includingUltra-fast and Ultra-small: New Frontiers in AMO Physics”, “Femtochemistry 10”, and the International Conference on Photochemistry 2011”.



Ultrafast Fluorescence Study of the Effect of Carboxylic and Carboxylate Substituents on the Excited State Properties of Anthracene. William Rodríguez-Córdoba, Raquel Noria-Moreno, Pedro Navarro and Jorge Peon. Journal of Luminescence. 2013.  DOI: 10.1016/j.jlumin.2013.08.046.

Dynamics of the Formation of a Charge Transfer State in 1,2-bis(9-anthryl)acetylene in Polar Solvents: Symmetry Reduction with the Participation of an Intramolecular Torsional Coordinate. Luís Gutiérrez-Arzaluz, César Augusto Guarín-Duran, William Rodriguez-Córdoba, and Jorge Peon. Journal of Physical Chemistry B. 2013. DOI: 10.1021/jp4038705.

The influence of push-pull states on the ultrafast intersystem crossing in nitroaromatics. Rafael López Arteaga, Anne Stephansen, César Augusto Guarín-Duran Theis Solling, and Jorge Peon. Journal of Physical Chemistry B. 2013, 117, 9947–9955.

Dynamics of the Upper Excited States of Cyanine Dyes. An Ultrafast Fluorescence Study. Cesar A. Guarin-Duran, Juan. P. Villabona-Monsalve, Rafael Lopez, and Jorge Peón.* Journal of Physical Chemistry B. 2013, 117, 7352-7362.

Ultrafast Excited State Dynamics of Allopurinol, a Modified DNA Base. Juan P. Villabona-Monsalve, Rosa E. Islas, William Rodríguez-Córdoba, Spiridoula Matsika, and Jorge Peon. Journal of Physical Chemistry A, 2013, 117, 898–904.

Theoretical study of the absorption and nonradiative deactivation of 1-nitronaphthalene in the low-lying singlet and triplet excited states including methanol and ethanol solvent effects. Yoelvis Orozco-Gonzalez,  Kaline Coutinho, Jorge Peon, and  Sylvio Canuto. Journal of Chemical Physics. 2012, 137, 054307.

Photophysics of a Cis Axially Disubstituted Macrocycle: Rapid Intersystem Crossing in a TinIV Phthalocyanine with a Half-Domed Geometry. Elizabeth Gutiérrez-Meza, Raquel Noria, Gilma Granados, Virginia Gómez-Vidales, José Zeferino Ramírez, Hirám Isaac Beltrán, and Jorge Peon. Journal of     Physical Chemistry B. 2012, 116, 14107–14114.

On the Accessibility to Conical Intersections in Purines: Hypoxanthine and its Singly Protonated and Deprotonated Forms. Juan Villabona-Monsalve, Raquel  Noria, Spiridoula Matsika, Jorge Peon. Journal of the American Chemical Society. 2012, 134, 7820–7829.

Photoinduced Energy Transfer in Bichromophoric Pyrene-PPV Oligomer Systems: The Role of Flexible Donor-Acceptor Bridges. William Rodríguez-Córdoba, Cesar A. Sierra, Cristian Ochoa Puentes, Paul Lahti,  Jorge Peon*.Journal of Physical Chemistry B. 2012, 116,3490-3503.

The Role of Upper Triplet States on the Photophysics of Nitrated Polyaromatic Compounds: The S1 Lifetimes of Singly Nitrated Pyrenes. Eddy F. Plaza-Medina, William Rodríguez-Córdoba, and Jorge Peon. Journal of Physical Chemistry A. 2011, 115, 9782-9789.

Ultrafast Photosensitization of Phthalocyanines through their Axial Ligands. William Rodriguez-Córdoba, Raquel Noria, César A. Guarín, Jorge Peon.  Journal of the American Chemical Society. 2011, 133, 4698-4701.

Primary Photochemistry of Nitrated Aromatic Compounds. Excited State Dynamics and NO Dissociation from 9-Nitroanthracene. Eddy F. Plaza-Medina, William Rodriguez-Córdoba, Rodrigo Morales-Cueto, Jorge Peon. Journal of Physical Chemistry A. 2011, 115, 577-585.

Excited State Lifetimes and Two-Photon Absorption Cross Sections of Fluorescent Diphenyl-TinIV Derivatives with Schiff Bases: a Comparative Study of the Effect of Chelation from the Ultrafast to the Steady State Time Scale. Jimena S. Zugazagoitia, Mauricio Maya, Carlos Damián-Zea, Hiram Beltrán, Jorge Peon. Journal of Physical Chemistry A. 2010, 114, 704-714.

Excited State Dynamics of Nitrated Push-Pull Molecules: The Importance of the Relative Energy of the Singlet and Triplet Manifolds.Elisa Collado-Fregoso, Jimena S. Zugazagoitia, Eddy F. Plaza-Medina, Jorge Peon. Journal of Physical Chemistry A. 2009, 113, 13498-13508.

Rotational diffusion of dihydroxy coumarins: The effect OH groups and their relative position on solute-solvent interactions. Mariana Esquivelzeta-Rabell, Jorge Peon, Gabriel Cuevas. Journal of Physical Chemistry B. 2009, 113, 8599-8606.

Relaxation in the Triplet Manifold of 1-Nitronaphthalene Observed by Transient Absorption Spectroscopy.Jimena S. Zugazagoitia, Elisa Collado-Fregoso, Eddy F. Plaza-Medina, Jorge Peon. Journal of Physical Chemistry A. 2009, 113, 805-810.

Synthesis and third-order nonlinear optical studies of a novel four-coordinated organoboron derivative and a bidentate ligand. The effect of the N-B coordinative bond. Mario Rodríguez, Rigoberto Castro-Beltran, Gabriel Ramos-Ortíz, José Luis Maldonado, Norberto Farfán, Oscar Dominguez, Rosa Santillán, Marco Antonio Meneses-Nava, Oracio Barbosa-García, Jorge Peon. Synthetic Metals. 2009, 159, 1281-1287.

Polypeptides with Pendant Porphyrins of Defined Sequence of Chromophores: towards Artificial Photosynthetic Systems. Nathalie Solladié, Farid Aziat, Régis Rein, Jorge Peon Ernesto Rivera. Journal of Porphyrins and Phthalocyanines. 2008, 12, 1232-1241.

Ultrafast Intersystem Crossing in 1-Nitronaphthalene. An Experimental and Computational Study. Jimena S. Zugazagoitia, Cesar Xavier Almora-Diaz, Jorge Peon. Journal of Physical Chemistry A 2008, 112, 358-365.

Unraveling the mechanisms of tryptophan fluorescence quenching in the triosephosphate isomerase from Giardia lamblia. Gloria Hernández-Alcántara, Adela Rodríguez-Romero, Horacio Reyes-Vivas, Jorge Peon, Nallely Cabrera, Carmen Ortiz, Sergio Enríquez-Flores, Ignacio De la Mora-De la Mora, Gabriel López-Velázquez. Biochimica et Biophysica Acta, 2008, 1784, 1493-1500.

Excited State Intramolecular Proton Transfer in Schiff Bases. Decay of the Locally Excited Enol State Observed by Femtosecond Resolved Fluorescence. William Rodriguez-Córdoba, Jimena Saucedo-Zugazagoitia, Elisa Collado-Fregoso and Jorge Peon. Journal of Physical Chemistry A, 2007, 111, 6241-6247.

Singlet excited state dynamics of nitro-polycyclic aromatic hydrocarbons: Direct measurements by femtosecond fluorescence up-conversion. Rodrigo Morales-Cueto, Mariana Esquivelzeta-Rabell, Jimena Saucedo-Zugazagoitia and Jorge Peon. Journal of Physical Chemistry A. 2007,  111, 552-557.


Made in Mexico, all rights reserved 2009 - 2012. This page can be reproduced for non-profit purposes, with the proviso that it cannot be altered, and that it quotes the complete source and electronic address. Otherwise it requires prior written permission from the institution. Dr. Jorge Peón Peralta.
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