<div dir="ltr"><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px">Dear Professor Peter Blaha and Dr. Robert Laskowski, </span></div><div><span style="color:rgb(0,0,0);font-family:Calibri,Helvetica,sans-serif;font-size:16px"><br></span></div><div><span style="text-align:justify;color:black">It is known that</span><span lang="EN-IN" style="text-align:justify"> quadrupolar nuclei such as 17O the resonance frequency is a combination of the chemical shift and the isotropic quadrupole coupling (goes like Cq^2/w0, Cq is the coupling and w0 is the Larmor frequency) and for a perfectly symmetric environment it should be zero.</span><br></div><p class="MsoNormal" style="margin-bottom:0.0001pt;text-align:justify;line-height:normal"><span></span></p>
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<p class="MsoNormal" style="margin-bottom:0.0001pt;text-align:justify;line-height:normal"><span style="color:black">I have calculated NMR chemical shift and </span><span lang="EN-IN">quadrupole coupling constant</span><span style="color:black"> of an insulator systems. My question is how we can calculate the contributions of Cq in chemical shifts and how much the quadrupole moment influences the chemical shift?<span></span></span></p>
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<p class="MsoNormal" style="margin-bottom:0.0001pt;text-align:justify;line-height:normal"><span style="color:black">Please correct me if I am wrong.<span></span></span></p>
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<p class="MsoNormal" style="margin-bottom:0.0001pt;text-align:justify;line-height:normal"><span style="color:black">Thanks <span></span></span></p>
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<p class="MsoNormal" style="margin-bottom:0.0001pt;text-align:justify;line-height:normal"><span style="color:black">Sandeep Kumar<span></span></span></p><div><div><br></div>-- <br><div class="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><div dir="ltr">Dr. Sandeep Kumar, Post-doc<div><div><span style="font-size:12.8px">Department of Chemistry,</span></div><div><span style="font-size:12.8px">The Lise Meitner-Minerva Center for Computational Quantum Chemistry &</span></div><div><span style="font-size:12.8px">The Institute for </span><span style="font-size:12.8px">Nanotechnology and Advanced Materials, </span></div><div><span style="font-size:12.8px">Bar-Ilan University, Ramat-Gan 52900, Israel</span></div><div><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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