<div dir="ltr">Thank you for your quick response. I have performed <span id="56c28f00-7b84-4881-abd0-a58ff6fc9682" class="GINGER_SOFTWARE_mark">lowdin</span> charge analysis. Could you please explain elaborately how can I get information about bonding nature (covalent or metallic) from charge calculation? <div> </div><div>Sincerely </div><div><span id="f3bf8d6c-5cc3-47fc-aa3a-1ca6d46b6a4b" class="GINGER_SOFTWARE_mark">Barnali</span> Bhattacharya</div><div>Ph.D student</div><div>Assam University</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Nov 25, 2014 at 7:02 PM, Sanjeev Gupta <span dir="ltr"><<a href="mailto:physics.skgupta@gmail.com" target="_blank">physics.skgupta@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi,<div>you may perform the charge calculation and look insight.</div><div><br></div><div>thanks</div><div>sanjeev</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">On Tue, Nov 25, 2014 at 5:17 AM, Barnali Bhattacharya <span dir="ltr"><<a href="mailto:barnalidgbhatt@gmail.com" target="_blank">barnalidgbhatt@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr">Dear  QE user,<div> </div><div>I am doing some calculation with sodium absorbed <span>graphene</span>. I want to see  whether the <span>Na</span>-C bond is more metallic or more covalent. Using QE how can I do it?</div><div> </div><div>Could anybody please guide me?</div><div><br></div><div>Sincerely</div><span><font color="#888888"><div> </div><div><span>Barnali</span>  Bhattacharya</div></font></span></div>
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