Greg Scholes, University of Toronto; Physical Chemistry Seminar

Thu, 2013-06-27 13:00

Prof. Gregory Scholes

University of Toronto


Functional novelties employed in light harvesting by diverse photosynthetic systems




Photosynthetic light harvesting complexes are sophisticated multichromophoric assemblies used to regulate and concentrate photo-excitations for delivery to reaction centers under wide-ranging incident irradiances [1]. They provide wonderful model systems for the study of energy transfer mechanisms in well-defined structures [2]. I will describe a few examples of ultrafast energy transfer in photosynthetic light harvesting, including the incredible use of nominally dark higher excited states of carotenoids to distribute excitation energy in LH2 from purple bacteria [3]. I will address the current status and issues regarding coherent ultrafast energy transfer in light harvesting complexes of cryptophyte algae.


[1] G. D. Scholes, T. Mirkovic, D. B. Turner, F. Fassioli and A. Buchleitner “Solar light harvesting by energy transfer: From ecology to quantum mechanics” Energy Environ. Sci. 5, 9374–9393 (2012).

[2] G. D. Scholes, G. R. Fleming, A. Olaya-Castro and R. van Grondelle, “Lessons from nature about solar light harvesting” Nature Chem. 3, 763–774 (2011).

[3] E. E. Ostroumov, R. M. Mulvaney, R. J. Cogdell, G. D. Scholes, “Broadband 2D Spectroscopy Reveals a Carotenoid Dark State in Purple Bacteria”, Science 340, 52–56 (2013).


Lynch Lecture Hall

Tedori-Callinan Lecture Series 2013: Emily A. Carter, Princeton University

Thu, 2013-04-25 13:30

Emily A. Carter, Princeton University


Heilmeier Hall, Towne Building Room 100


"Quantum Mechanics and the Future of the Planet"

Virgil Percec Elected to Royal Swedish Academy of Engineering Sciences, IVA

Virgil Percec has been elected as a Foreign Member of the Royal Swedish Academy of Engineering Sciences, IVA. The IVA is the oldest academy of engineering sciences in the world, formed in 1919.

James Petersson Honored by JPOC

James Petersson is just the 8th recipient of the JPOC Award for Early Excellence in Physical Organic Chemistry. The Award includes the opportunity to give a lecture at the Gordon Research Conference on Physical Organic Chemistry.

James was also picked as one of just two US Young Investigator representatives to the European Society for Organic Chemistry Meeting in Marseilles.

Robin Hochstrasser Memorial Service

Thu, 2013-04-04 16:00 - 17:00

Please join us for a memorial celebration of Robin Hochstrasser's life and monumental work to be held in the Harrison Auditorium of the University of Pennsylvania Museum in Philadelphia on April 4 at 4:00 PM. A reception for all attendees will follow. The Penn Museum is located at 33rd & Spruce Street. Attendees are encouraged to use the 33rd Street entrance (located in the driveway across 33rd Street from the Penn Hospital entrance).


NOBCChE Northeast Regional Conference

Fri, 2013-04-19 (All day) - Sat, 2013-04-20 (All day)

Lynch Lecture Hall

The Departments of Chemistry and Chemical Engineering at the University of Pennsylvania are pleased to host the 2013 Northeast Regional Meeting of the National Organization of Black Chemists and Chemical Engineers (NOBCChE).


Robin M. Hochstrasser (1931 - 2013)

We are deeply saddened to learn that Professor Robin Hochstrasser passed away on February 27 at the age of 82.


Robin M. Hochstrasser, a pioneer and one of the world’s foremost scientists in the application of lasers in chemical and biomedical research, died February 27, 2013. He was a professor and distinguished researcher in the Department of Chemistry at the University of Pennsylvania in Philadelphia for the past 50 years.


Eric Ferreira, Colorado State University; Special Organic Seminar

Wed, 2013-02-27 16:00 - 17:30

Lynch Room

Eric Schelter receives Cottrelll Scholar Award

Assistant Professor Eric Schelter has received a 2013 Cottrell Scholar Award. The Cottrell Scholar awards, instituted in 1994, are named in honor of Frederick Gardner Cottrell, scientist, inventor and philanthropist. Dr. Cottrell founded Research Corporation in 1912 and provided means for scientific research and experimentation at scholarly institutions.

Department of Chemistry

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