<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:"Avenir Roman";
panose-1:2 11 5 3 2 2 3 2 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
p.p1, li.p1, div.p1
{mso-style-name:p1;
margin:0in;
margin-bottom:.0001pt;
font-size:9.0pt;
font-family:"Calibri",sans-serif;}
p.p2, li.p2, div.p2
{mso-style-name:p2;
margin:0in;
margin-bottom:.0001pt;
font-size:10.5pt;
font-family:"Calibri",sans-serif;}
p.p3, li.p3, div.p3
{mso-style-name:p3;
margin:0in;
margin-bottom:.0001pt;
font-size:8.5pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle21
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.apple-converted-space
{mso-style-name:apple-converted-space;}
span.EmailStyle23
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-size:11.0pt;color:red">In following current MIT policy regarding COVID-19 (coronavirus),
<b>please DO NOT attend this lecture if you are feeling unwell</b> or have recently traveled to or from areas outside the United States or specifically impacted areas within it. Please also practice good hygiene, particularly hand-washing.
<o:p></o:p></span></i></p>
<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-size:11.0pt;color:red">More information from MIT Medical may be found
<a href="https://medical.mit.edu/news/2020/01/2019-novel-coronavirus-updates-1"><span style="color:red">here</span></a>.
<o:p></o:p></span></i></p>
<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-size:11.0pt;color:red"><o:p> </o:p></span></i></p>
<p class="MsoNormal" align="center" style="text-align:center"><i><span style="font-size:11.0pt;color:red">A number of boxed, individual lunches will be available following the lecture in order to comply with the most recent MIT guidelines regarding event catering
and communal food sharing/serving, as buffet-style meals are strongly discouraged. While this is a departure from our typical post-lecture arrangements, this is an atypical situation and our priority is keeping everyone safe and minimizing risk.<o:p></o:p></span></i></p>
<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:15.0pt;font-family:"Avenir Roman",sans-serif"><o:p> </o:p></span></b></p>
<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 at 12pm</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"> <i><br>
No RSVP is required to attend</i></span></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>
</div>
</body>
</html>