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<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=navy face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;color:navy'><span
style='mso-spacerun:yes'> </span></span></font><font size=1 color=navy
face=Arial><span lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt;
font-family:Arial;color:navy'>Dear Dr. <span class=SpellE>Baroni</span>,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial;color:navy'>I
have thought of another way to calculate the norm mode of small molecular
absorbed on a surface.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial;color:navy'>The
idea is quite simple. Since the frequency is related closely to the mass, then
in the input file, I can set the mass of atoms in the slab to a very large
value so that the correspondent frequencies are greatly lowered so the norm
mode of small molecular absorbed can be figured out.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial;color:navy'>Just
give me some comments on this and how to give a zero point energy correlation <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial;color:navy'>Regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial;color:navy'>Rongqin</span></font><span
lang=EN-US><o:p></o:p></span></p>
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size=3 face=宋体><span lang=EN-US style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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