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SUMMARY:Water and light mediated multi-phase organic chemistry in the cont
 emporary and on ancient Earth - Veronica Vaida (University of Colorado)
DTSTART:20131216T141500Z
DTEND:20131216T153000Z
UID:TALK49132@talks.cam.ac.uk
CONTACT:Dr Amanda Maycock
DESCRIPTION:This presentation will discuss the role of water and water-air
  interfaces in mediating light initiated reactions of oxidized organic spe
 cies (acids\, alcohols\, aldehydes and ketones) relevant to chemistry in/o
 n atmospheric aerosols. Spectroscopic laboratory and environmental chamber
  studies supplemented by theory provide mechanistic and dynamical informat
 ion regarding the role of water in chemistry. Water vapor\, water clusters
  and water-air interfaces provide unique reaction environments for buildin
 g complexity in the natural environment. Formation of peptide bonds at the
  water surface in the absence of enzymes allows for the opportunity to dis
 cuss the unique properties of water-air interfaces in chemistry. The impli
 cations of water-mediated chemistry to nucleation\, growth and atmospheric
  processing of organic aerosols will be illustrated with the multi-phase p
 hotoreactivity of pyruvic acid and its consequences to the contemporary an
 d prebiotic Earth. 
LOCATION:Unilever Lecture Theatre\, Department of Chemistry
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