G. Barney Ellison's guest appearances

G. Barney Ellison

Freshman Organic Chemistry 2

Moses Gomberg

Dipolar Cycloaddition

OwlTail

Spectroscopic determination of bond dissociation energies is relatively straightforward for many diatomic molecules, but for polyatomic molecules it requires merging the results from a variety of challenging experiments.  Professor Ellison describes how such techniques as flowing-afterglow mass spectroscopy and negative-ion photoelectron spectroscopy together with data on free-radical kinetics and heats of formation have allowed precise determination of the O-H, C-H, and C-O bonds in methanol and other compounds.  Interpreting these reliable data provides new insight into the nature of chemical bonding and “resonance”.Complete course materials are available at the Open Yale Courses website: http://oyc.yale.eduThis course was recorded in Spring 2011.

Spectroscopic determination of bond dissociation energies is relatively straightforward for many diatomic molecules, but for polyatomic molecules it requires merging the results from a variety of challenging experiments.  Professor Ellison describes how such techniques as flowing-afterglow mass spectroscopy and negative-ion photoelectron spectroscopy together with data on free-radical kinetics and heats of formation have allowed precise determination of the O-H, C-H, and C-O bonds in methanol and other compounds.  Interpreting these reliable data provides new insight into the nature of chemical bonding and “resonance”.<br><br>Complete course materials are available at the Open Yale Courses website: <a href="http://oyc.yale.edu" rel="nofollow" target="_blank">http://oyc.yale.edu</a><br><br>This course was recorded in Spring 2011.