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Principles of Chemistry II © Vanden Bout
quick note on transition state theory. Once you get to the transition state you are equally likely to
go either direction (to reactants or products)
Principles of Chemistry II © Vanden Bout
Catalyzes three chemical reactions2NOx xO2 + N2
2CO + O2 2CO2
2CxHy + (2x+y/2)O2 2xCO2 + yH2O
Principles of Chemistry II © Vanden Bout
Smog
Sun + NOx + VOC = photochemical smog
Volatile Organic Compound(uncombusted fuel for example)
smoke + SO2 + water
Principles of Chemistry II © Vanden Bout
Great Smoky Mountains
VOC released from the trees lead to a sort of "natural smog"
Greatly enhance by adding NOx
Principles of Chemistry II © Vanden Bout
Ozone O3
Bad down hereO3 is a great oxidizing agent
O3 + lungs = reacted lung tissue
Principles of Chemistry II © Vanden Bout
Haber Process (Fritz Haber Nobel 1918)Formation of Ammonia
originally osmium and uranium
Now iron (keep out the O2)
Ertl Nobel Prize 2008
Principles of Chemistry II © Vanden Bout
Substrate + Enzyme = Complex = Product + Enzyme
S + E = [SE] = P + E
Principles of Chemistry II © Vanden Bout
Enzyme Name = Function
Glucose Oxidase Oxidizes Glucose
Aromatic Amine Dehydrogenaseremoves Hydrogen from an aromatic amine
Hydrolase Hydrolyze reactions
Isomerase Isomerize molecules
Transferase Transfers functional groups
Principles of Chemistry II © Vanden Bout
Freshman Research Initiative ProjectNanomaterials
Dendrimer encapsulated nanoparticle
small metal particlecan be made of a variety of materials (Au,Ag, Pd, Pt, Cu, Pt/Cu, Pd/Cu,....)
Principles of Chemistry II © Vanden Bout
How good is the catalyst? Measure the kinetics
OH
NO O
-
OH
NH2
Measure the concentration as a function of time.
Kinetics are first order in reactantplot ln[concentration] vs time slope = -k