<div dir="ltr"><div>Dear Experts, users and all</div><div><br></div><div>
<div class="gmail-nova-o-stack__item"><span><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-none gmail-nova-e-text--color-inherit" style="padding-right:0px"><span class="gmail-Linkify"><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text">I found the dipoles of CO2 calculated by Quantum ESPRESSO as :</div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text"><br></div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text"> Computed dipole along edir(3) :
</div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text"> Elec. dipole 0.3112 Ry au, 0.7909 Debye</div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text"> Ion. dipole 0.8137 Ry au, 2.0683 Debye</div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text"> Dipole 41.9812 Ry au, 106.7055 Debye</div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text"> Dipole field 0.5025 Ry au, <br></div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text"><br></div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text">I assumed the third value is the sum of the electronic and ionic contributions.</div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text">The input and output files are attached herewith. </div><div class="gmail-nova-e-text gmail-nova-e-text--size-m gmail-nova-e-text--family-sans-serif gmail-nova-e-text--spacing-s gmail-nova-e-text--color-inherit gmail-redraft-text">Since CO2 is non-polar molecule (with polar bonds), shouldn't the total dipole moment be zero?</div></span></div></span></div>
</div><div><br>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><span style="color:rgb(153,153,153)"><span style="background-color:rgb(0,0,0)"><span></span></span><span style="color:rgb(0,0,255)">Endale Abebe</span></span></div><div><span style="color:rgb(0,0,255)">Program coordinator and </span><span style="color:rgb(0,0,255)"><span><span style="color:rgb(0,0,255)">Lecturer</span></span></span></div><div><span style="color:rgb(0,0,255)">Faculty of Materials Science and Engineering</span></div><div><span style="color:rgb(0,0,255)">Jimma Institute of Technology</span></div><div><span style="color:rgb(0,0,255)">Jimma University<br></span></div><div><span style="color:rgb(0,0,255)">P.O.Box 378, Jimma, Ethiopia</span></div><div><span style="color:rgb(0,0,255)">Mobile: +251921381598</span><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>