      t0 = -4.D0/3.D0*sqrt(pi)*M/R**2
                                dRC00(1,1)=t0

      t0 = 0
                                dRC00(1,2)=t0

      t0 = 0
                                dRC00(1,3)=t0

      t0 = -4.D0/3.D0*sqrt(pi)*M/R**2
                                dRC00(2,2)=t0

      t0 = 0
                                dRC00(2,3)=t0

      t0 = -4.D0/3.D0*sqrt(pi)*M/R**2
                                dRC00(3,3)=t0

