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                                <font face="Arial" size="2"><b><i>-- Original Message --</i></b><br >
                                From: prema.a@iiserpune.ac.in<br >
                                To: gmxusers@gromacs.org<br >
                                Date: Tue, 21 Jun 2011 23:25:51 +0530 (GMT+05:30)<br >
                                Subject: properdihedrals<br >
                                <br >
                                Sir,<br >
                                I am looking forward for your help to calculate Ryckaert-Belleman's (RB) coefficients using proper dihedrals.Is there any way to get Fourier coefficients value from the equation;<br >
                                Vd (&#966;ijkl ) = k&#966; (1 + cos(n&#966; &#8722; &#966;s )) ; so that I can use it in following way to get RB coefficients;<br >
                                <br >
                                C0 = F2 + 1 (F1 + F3 )<br >
                                C1 = 1 (&#8722;F1 + 3 F3 )<br >
                                C2 = &#8722;F2 + 4 F4<br >
                                C3 = &#8722;2 F3<br >
                                C4 = &#8722;4 F4<br >
                                C5 = 0<br >
                                I am referring Gromacs-4.5.3 manual for the above conversion.<br >
                                Looking for your quick response<br >
                                Thankyou.<br >
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