“…The computer program MCS (Version 1.00) for the Monte Carlo calculation, which has been developed by the authors' group (Nakamura et al, 2001), was used to ®nd the missing one C and two O atoms in m-DMBA by using SR07 (2 range 5±30 ). In calculating initial and trial con®gurations, relative positions of seven independent atoms, derived by direct methods, were kept ®xed as a group in a unit cell.…”