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<p class="MsoNormal"><span style="font-size:13.0pt">Please be advised that this lecture will be held on Tuesday, March 10 at
<b>12PM.</b><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><b><span style="font-size:11.0pt">Christine Brooks</span></b><span style="font-size:11.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Administrative Assistant<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Massachusetts Institute of Technology<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Department of Chemistry<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">77 Massachusetts Ave, 6-333<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Cambridge, MA 02139<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">p: 617.253.7239<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">e: <a href="mailto:cbrooks@mit.edu">cbrooks@mit.edu</a><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From: </span></b><span style="color:black">Christine Brooks <cbrooks@mit.edu><br>
<b>Date: </b>Wednesday, March 4, 2020 at 11:48 AM<br>
<b>To: </b>mos <mos@mit.edu><br>
<b>Subject: </b>3/10: Lord Lecture with Marsha Lester (University of Pennsylvania)<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:15.0pt;font-family:"Avenir Roman",sans-serif">Please join us for the 2020 Lord Lecture</span></b><o:p></o:p></p>
<p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:13.0pt;font-family:"Avenir Roman",sans-serif">presented by<b>
<br>
</b></span><b><span style="font-size:18.0pt;font-family:"Avenir Roman",sans-serif">Professor Marsha I. Lester</span></b><b><span style="font-size:15.0pt;font-family:"Avenir Roman",sans-serif"><br>
</span></b><i><span style="font-size:15.0pt;font-family:"Avenir Roman",sans-serif">University of Pennsylvania</span></i><b><span style="font-size:15.0pt;font-family:"Avenir Roman",sans-serif"><br>
</span></b><b><span style="font-size:16.0pt;font-family:"Avenir Roman",sans-serif"><br>
Tuesday, March 10, 2020</span></b><i><span style="font-size:15.0pt;font-family:"Avenir Roman",sans-serif">
</span></i><o:p></o:p></p>
<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-size:15.0pt;font-family:"Avenir Roman",sans-serif">in the
<b><a href="https://whereis.mit.edu/?go=34"><span style="color:windowtext">Grier Room</span><span style="color:windowtext;font-weight:normal"> (34-401A)</span></a></b> at MIT</span></i><o:p></o:p></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:13.0pt;font-family:"Avenir Roman",sans-serif"> </span></b><o:p></o:p></p>
<p class="p1" align="center" style="text-align:center"><b><span style="font-size:16.0pt;font-family:"Avenir Roman",sans-serif">“Spectroscopic and Dynamical Probes of Alkene Ozonolysis Reaction Pathways”</span></b><o:p></o:p></p>
<p class="p3"><span style="font-size:12.0pt;font-family:"Avenir Roman",sans-serif"><br>
Alkene ozonolysis is a primary oxidation pathway for alkenes, the most abundant organic compounds in the Earth’s troposphere after methane, and also an important source of atmospheric hydroxyl (OH) radicals. Alkene ozonolysis takes place through a complicated
reaction pathway with multiple intermediates and barriers on the way to OH radicals and other products. A carbonyl oxide species, known as the Criegee intermediate (RR</span><span style="font-size:12.0pt;font-family:Symbol">¢</span><span style="font-size:12.0pt;font-family:"Avenir Roman",sans-serif">COO),
represents a critical branching point on the pathway that controls the products formed in this important class of reactions. Recent studies in this laboratory are focused on four-carbon Criegee intermediates, including unsaturated methyl vinyl ketone oxide
(MVK-oxide) and methacrolein oxide (MACR-oxide) derived from isoprene ozonolysis. The Criegee intermediates are generated by alternative synthetic routes, characterized utilizing infrared and ultraviolet spectroscopic methods, and probed to examine the resultant
dynamics. Infrared ‘fingerprint’ and electronic spectra reflecting </span><span style="font-size:12.0pt;font-family:Symbol">p</span><span style="font-size:12.0pt;font-family:"Avenir Roman",sans-serif">-conjugation of the Criegee intermediates are obtained,
along with time- and energy-resolved studies of their unimolecular decay to OH radical products. The conformation and nature of the substituents (R, R</span><span style="font-size:12.0pt;font-family:Symbol">¢</span><span style="font-size:12.0pt;font-family:"Avenir Roman",sans-serif">)
of the Criegee intermediates are found to have a profound effect on their reaction dynamics. Complementary experiments under thermal conditions reveal the first direct kinetic measurements of MVK-oxide reactions with key tropospheric species and, along with
theoretical modeling, provide insights on the impact of Criegee intermediates in the atmosphere.<span class="apple-converted-space"> </span></span><o:p></o:p></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:13.0pt;font-family:"Avenir Roman",sans-serif"> </span></b><o:p></o:p></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><i><span style="font-size:13.0pt;font-family:"Avenir Roman",sans-serif">Refreshments will be served following the lecture<br>
No RSVP is required to attend</span></i></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt"> </span><o:p></o:p></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt">Christine Brooks</span></b><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Administrative Assistant</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Massachusetts Institute of Technology</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Department of Chemistry</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">77 Massachusetts Ave, 6-333</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Cambridge, MA 02139</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">p: 617.253.7239</span><o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt">e: <a href="mailto:cbrooks@mit.edu">cbrooks@mit.edu</a></span><o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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