<div dir="ltr">Dear Gavin,<div><br></div><div>              Thank you so much. Your advice is very helpful.</div><div><br></div><div>with regards,</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Sep 23, 2017 at 7:52 PM, Gavin Abo <span dir="ltr"><<a href="mailto:gsabo@crimson.ua.edu" target="_blank">gsabo@crimson.ua.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div text="#000000" bgcolor="#FFFFFF">
    My opinion is that your first struct file with a = b = 30 bohr =
    15.87531 ang and c = 40 bohr = 21.16708 ang was better expect for
    the bond length as Gerhard mentioned.<br>
    <br>
    I would probably put the O atoms around the center in-between z = 0
    and z = 1.  In other words, the first atom at:<br>
    <br>
    z = 0.5 + delta_z<br>
    <br>
    where delta_z = [(bond length)/2]/c = [1.208 ang/2]/21.16708 ang =
    0.02853488<br>
    <br>
    Therefore, (0,0,z) = (0,0,0.52853488)<br>
    <br>
    Then, the second O atom I would put at (0.5 - delta_z) = 0.47146512.<br>
    <br>
    Such that, (0,0, 1-z) = (0,0,0.47146512)<br>
    <br>
    Checking the bond length with distance formula [
    <a class="m_47392049588019323moz-txt-link-freetext" href="http://mathworld.wolfram.com/Distance.html" target="_blank">http://mathworld.wolfram.com/<wbr>Distance.html</a> ]:<br>
    <br>
    d = sqrt [(0-0)^2+(0-0)^2+(0.52853488-<wbr>0.47146512)^2] = 0.05706976<br>
    d = 0.05706976*21.16708 ang = 1.208 ang<div><div class="h5"><br>
    <br>
    <div class="m_47392049588019323moz-cite-prefix">On 9/22/2017 8:31 AM, shamik
      chakrabarti wrote:<br>
    </div>
    <blockquote type="cite">
      <div dir="ltr">
        <div>Dear Gavin, Gerhard & Wien2k users,</div>
        <div><br>
        </div>
        I am sending the modified structure file for O2 molecule. Please
        have a look at it & suggest me that whether it is right.
        <div><br>
        </div>
        <div>Thanks in advance.</div>
        <div><br>
        </div>
        <div>with regards,</div>
        <div><br>
        </div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">On Fri, Sep 22, 2017 at 5:01 PM,
          Fecher, Gerhard <span dir="ltr"><<a href="mailto:fecher@uni-mainz.de" target="_blank">fecher@uni-mainz.de</a>></span>
          wrote:<br>
          <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I think
            4.4 Angström between two oxygen atoms would be a rather
            large bond length for O2<br>
            shouldn't you give the z parameter in multiples (fractions)
            of the lattice parameters ?<br>
            <br>
            Ciao<br>
            Gerhard<br>
            <br>
            DEEP THOUGHT in D. Adams; Hitchhikers Guide to the Galaxy:<br>
            "I think the problem, to be quite honest with you,<br>
            is that you have never actually known what the question is."<br>
            <br>
            ==============================<wbr>======<br>
            Dr. Gerhard H. Fecher<br>
            Institut of Inorganic and Analytical Chemistry<br>
            Johannes Gutenberg - University<br>
            55099 Mainz<br>
            and<br>
            Max Planck Institute for Chemical Physics of Solids<br>
            01187 Dresden<br>
            ______________________________<wbr>__________<br>
            Von: Wien [<a href="mailto:wien-bounces@zeus.theochem.tuwien.ac.at" target="_blank">wien-bounces@zeus.theochem.tu<wbr>wien.ac.at</a>]
            im Auftrag von shamik chakrabarti [<a href="mailto:shamikphy@gmail.com" target="_blank">shamikphy@gmail.com</a>]<br>
            Gesendet: Freitag, 22. September 2017 12:16<br>
            An: A Mailing list for WIEN2k users<br>
            Betreff: [Wien] Fwd:  how to simulate the energy of Oxygen
            molecule<br>
            <span><br>
              ---------- Forwarded message ----------<br>
              From: shamik chakrabarti <<a href="mailto:shamikphy@gmail.com" target="_blank">shamikphy@gmail.com</a><mailto:<a href="mailto:shamikphy@gmail.com" target="_blank">sh<wbr>amikphy@gmail.com</a>>><br>
              Date: Fri, Sep 22, 2017 at 3:45 PM<br>
              Subject: Fwd: [Wien] how to simulate the energy of Oxygen
              molecule<br>
            </span><span>To: A Mailing list for WIEN2k users
              <<a href="mailto:wien@zeus.theochem.tuwien.ac.at" target="_blank">wien@zeus.theochem.tuwien.ac.<wbr>at</a><mailto:<a href="mailto:wien@zeus.theochem.tuwien.ac.at" target="_blank">wien@zeus.theochem.t<wbr>uwien.ac.at</a>>><br>
              <br>
              <br>
              <br>
              ---------- Forwarded message ----------<br>
            </span><span>From: shamik chakrabarti <<a href="mailto:shamikphy@gmail.com" target="_blank">shamikphy@gmail.com</a><mailto:<a href="mailto:shamikphy@gmail.com" target="_blank">sh<wbr>amikphy@gmail.com</a>>><br>
              Date: Fri, Sep 22, 2017 at 3:42 PM<br>
              Subject: Re: [Wien] how to simulate the energy of Oxygen
              molecule<br>
            </span><span>To: A Mailing list for WIEN2k users
              <<a href="mailto:wien@zeus.theochem.tuwien.ac.at" target="_blank">wien@zeus.theochem.tuwien.ac.<wbr>at</a><mailto:<a href="mailto:wien@zeus.theochem.tuwien.ac.at" target="_blank">wien@zeus.theochem.t<wbr>uwien.ac.at</a>>><br>
              <br>
              <br>
              Dear Gavin,<br>
              <br>
                           Thank you for your response. By following the
              advice given in the link, I have prepared the O2 cell. I
              am sending the struct file & the image (generated in
              vesta) of the structure herewith this mail. I have replace
              z by 1.208/2 where 1.208 is the bond length of O2 (O-O
              distance) molecule. Please look at the structure &
              advice if the structure is correct or not.<br>
              <br>
              with regards,<br>
              <br>
            </span><span>On Fri, Sep 22, 2017 at 1:18 PM, Gavin
              Abo <<a href="mailto:gsabo@crimson.ua.edu" target="_blank">gsabo@crimson.ua.edu</a><mailto:<a href="mailto:gsabo@crimson.ua.edu" target="_blank">g<wbr>sabo@crimson.ua.edu</a>>>
              wrote:<br>
              <a href="http://zeus.theochem.tuwien.ac.at/pipermail/wien/2003-October/000880.html" rel="noreferrer" target="_blank">http://zeus.theochem.tuwien.ac<wbr>.at/pipermail/wien/2003-Octobe<wbr>r/000880.html</a><br>
              <a href="http://zeus.theochem.tuwien.ac.at/pipermail/wien/2003-October/000882.html" rel="noreferrer" target="_blank">http://zeus.theochem.tuwien.ac<wbr>.at/pipermail/wien/2003-Octobe<wbr>r/000882.html</a><br>
              <br>
              <br>
              On 9/20/2017 4:44 AM, shamik chakrabarti wrote:<br>
              Dear wien2k users,<br>
              <br>
                                      How to simulate the ground state
              energy of Oxygen molecule (O2) in wien2k?..We can create a
              20 Angstorm unit cell & put an oxygen atom at the
              centre, but then in which position another oxygen atom can
              sit?<br>
              <br>
              Thanks in advance.<br>
              <br>
              with regards,<br>
              <br>
              --<br>
              Dr. Shamik Chakrabarti<br>
              Post Doctoral Research Associate<br>
              Dept. of Condensed Matter Physics and  Material Science<br>
              S N Bose National Centre for Basic Sciences<br>
              Kolkata-700098<br>
              INDIA<br>
              <br>
              ______________________________<wbr>_________________<br>
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            </span><a href="mailto:Wien@zeus.theochem.tuwien.ac.at" target="_blank">Wien@zeus.theochem.tuwien.ac.a<wbr>t</a><mailto:<a href="mailto:Wien@zeus.theochem.tuwien.ac.at" target="_blank">Wien@zeus.theochem.tu<wbr>wien.ac.at</a>><br>
            <div class="m_47392049588019323HOEnZb">
              <div class="m_47392049588019323h5"><a href="http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien" rel="noreferrer" target="_blank">http://zeus.theochem.tuwien.ac<wbr>.at/mailman/listinfo/wien</a><br>
                SEARCH the MAILING-LIST at:  <a href="http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html" rel="noreferrer" target="_blank">http://www.mail-archive.com/wi<wbr>en@zeus.theochem.tuwien.ac.at/<wbr>index.html</a><br>
                <br>
                <br>
                <br>
                <br>
                --<br>
                Dr. Shamik Chakrabarti<br>
                Post Doctoral Research Associate<br>
                Dept. of Condensed Matter Physics and  Material Science<br>
                S N Bose National Centre for Basic Sciences<br>
                Kolkata-700098<br>
                INDIA<br>
                <br>
                <br>
                <br>
                --<br>
                Dr. Shamik Chakrabarti<br>
                Post Doctoral Research Associate<br>
                Dept. of Condensed Matter Physics and  Material Science<br>
                S N Bose National Centre for Basic Sciences<br>
                Kolkata-700098<br>
                INDIA<br>
                <br>
                <br>
                <br>
                --<br>
                Dr. Shamik Chakrabarti<br>
                Post Doctoral Research Associate<br>
                Dept. of Condensed Matter Physics and  Material Science<br>
                S N Bose National Centre for Basic Sciences<br>
                Kolkata-700098<br>
                INDIA<br>
                ______________________________<wbr>_________________<br>
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              </div>
            </div>
          </blockquote>
        </div>
        <br>
        <br clear="all">
        <div><br>
        </div>
        -- <br>
        <div class="m_47392049588019323gmail_signature" data-smartmail="gmail_signature">
          <div dir="ltr">
            <div>
              <div dir="ltr">
                <div dir="ltr">
                  <div style="font-size:12.8px">Dr. Shamik Chakrabarti<br>
                    Post Doctoral Research Associate</div>
                  <div style="font-size:12.8px">Dept. of Condensed
                    Matter Physics and  Material Science</div>
                  <div style="font-size:12.8px">S N Bose National Centre
                    for Basic Sciences<br>
                    Kolkata-700098<br>
                    INDIA</div>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </blockquote>
  </div></div></div>

<br>______________________________<wbr>_________________<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div style="font-size:12.8px">Dr. Shamik Chakrabarti<br>Post Doctoral Research Associate</div><div style="font-size:12.8px">Dept. of Condensed Matter Physics and  Material Science</div><div style="font-size:12.8px">S N Bose National Centre for Basic Sciences<br>Kolkata-700098<br>INDIA</div></div></div></div></div></div>
</div>