“…R F ¼ 100 (S k j(I k obs ) 1/2 À (I k cal ) 1/2 j/S k j(I k obs ) 1/2 j)%, I k obs is the integrated intensity evaluated from summation of contribution of the kth peaks to net observed intensity, I k cal is the integrated intensity calculated from refined structural parameters. x 1413.1688 [9] (continued on next page) …”