-- Original Message --

                                From: prem...@iiserpune.ac.in

                                To: gmxus...@gromacs.org

                                Date: Tue, 21 Jun 2011 23:25:51 +0530 
(GMT+05:30)

                                Subject: properdihedrals

                                

                                Sir,

                                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;

                                Vd (?ijkl ) = k? (1 + cos(n? ? ?s )) ; so that 
I can use it in following way to get RB coefficients;

                                

                                C0 = F2 + 1 (F1 + F3 )

                                C1 = 1 (?F1 + 3 F3 )

                                C2 = ?F2 + 4 F4

                                C3 = ?2 F3

                                C4 = ?4 F4

                                C5 = 0

                                I am referring Gromacs-4.5.3 manual for the 
above conversion.

                                Looking for your quick response

                                Thankyou.

                                
                
        

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