Hey everybody, For a while I was wondering why I could not get a proper XANES simulation using FEFF (8 or 9). Recently I realized that the xyz list which is created in atoms from the crystal structure is not the same as from a crystal structure program for PbSO4. Can somebody please check this. I attached my feff.imp file including the atoms.imp (which was created by arthemis). Thanks, Lisa * input file was generated by Artemis 0.8.014 * Atoms written by and copyright (c) Bruce Ravel, 1998-2001 * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * * total mu*x=1: 13.94 microns, unit edge step: 24.69 microns * specific gravity = 5.382 * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * * Normalization correction: 0.00039 ang^2 * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * -- * * ----------------------------------------------------------------- * The following crystallographic data were used: * * title *-PbSO4 -[PNMA] Anglesite - orthorhombic * title 'James, R W' * title Proceedings of the Royal Society of London, Series A: Mathematical and Physical Sciences (76,1906-) * space = P n m a * a = 8.450 b = 5.380 c = 6.930 * alpha = 90.0 beta = 90.0 gamma = 90.0 * core = Pb edge = L3 * atoms * ! elem x y z tag occ * Pb 0.31530 0.25000 0.33750 1.00000 * S 0.44300 0.25000 -0.19470 1.00000 * O -1.00000 -1.00000 -1.00000 1.00000 * ----------------------------------------------------------------- EDGE L3 S02 1.0 CONTROL 1 1 1 1 1 1 PRINT 1 0 0 0 0 0 SCF 5.16556 0 15 0.1 EXCHANGE 0 0 0 XANES 6.0 0.07 0.5 FMS 6 *LDOS -20 20 0.1 POTENTIALS * ipot z [ label l_scmt l_fms stoichiometry ] 0 82 Pb -1 -1 0 1 8 O -1 -1 1 2 16 S -1 -1 1 3 82 Pb -1 -1 1 ATOMS * this list contains 156 atoms * x y z ipot tag distance 0.00000 0.00000 0.00000 0 Pb 0.00000 1.56072 1.34500 1.12613 3 O_1 2.34799 1.56072 -1.34500 1.12613 3 O_1 2.34799 1.07906 0.00000 3.24185 2 S_1 3.41672 -2.18263 2.69000 -0.22315 2 S_2 3.47128 -2.18263 -2.69000 -0.22315 2 S_2 3.47128 2.04237 2.69000 -0.98960 2 S_3 3.51947 2.04237 -2.69000 -0.98960 2 S_3 3.51947 -2.66429 1.34500 -2.33887 3 O_2 3.79180 -2.66429 -1.34500 -2.33887 3 O_2 3.79180 1.07906 0.00000 -3.68815 2 S_4 3.84276 -3.14594 0.00000 2.47540 2 S_5 4.00307 4.22500 0.00000 -1.21275 1 Pb_1 4.39561 -4.22500 0.00000 -1.21275 1 Pb_1 4.39561 1.56072 4.03500 1.12613 3 O_3 4.47049 1.56072 -4.03500 1.12613 3 O_3 4.47049 -1.10357 2.69000 3.46500 1 Pb_2 4.52329 -1.10357 -2.69000 3.46500 1 Pb_2 4.52329 -1.10357 2.69000 -3.46500 1 Pb_2 4.52329 -1.10357 -2.69000 -3.46500 1 Pb_2 4.52329 3.12143 2.69000 2.25225 1 Pb_3 4.69596 3.12143 -2.69000 2.25225 1 Pb_3 4.69596 -2.66429 4.03500 -2.33887 3 O_4 5.37122 -2.66429 -4.03500 -2.33887 3 O_4 5.37122 0.00000 5.38000 0.00000 1 Pb_4 5.38000 0.00000 -5.38000 0.00000 1 Pb_4 5.38000 -3.14594 0.00000 -4.45460 2 S_6 5.45348 -2.66429 1.34500 4.59112 3 O_5 5.47593 -2.66429 -1.34500 4.59112 3 O_5 5.47593 5.30406 0.00000 2.47540 2 S_7 5.85326 1.56072 1.34500 -5.80387 3 O_6 6.15872 1.56072 -1.34500 -5.80387 3 O_6 6.15872 3.12143 2.69000 -4.67775 1 Pb_5 6.23384 3.12143 -2.69000 -4.67775 1 Pb_5 6.23384 1.07906 5.38000 3.24185 2 S_8 6.37325 1.07906 -5.38000 3.24185 2 S_8 6.37325 -5.32857 2.69000 2.25225 1 Pb_6 6.37984 -5.32857 -2.69000 2.25225 1 Pb_6 6.37984 5.78571 1.34500 -2.33887 3 O_7 6.38387 5.78571 -1.34500 -2.33887 3 O_7 6.38387 1.07906 5.38000 -3.68815 2 S_9 6.61145 1.07906 -5.38000 -3.68815 2 S_9 6.61145 -2.66429 4.03500 4.59112 3 O_8 6.66769 -2.66429 -4.03500 4.59112 3 O_8 6.66769 -3.14594 5.38000 2.47540 2 S_10 6.70589 -3.14594 -5.38000 2.47540 2 S_10 6.70589 6.26736 2.69000 -0.22315 2 S_11 6.82391 6.26736 -2.69000 -0.22315 2 S_11 6.82391 2.04237 2.69000 5.94040 2 S_12 6.83343 2.04237 -2.69000 5.94040 2 S_12 6.83343 5.30406 0.00000 -4.45460 2 S_13 6.92651 0.00000 0.00000 6.93000 1 Pb_7 6.93000 0.00000 0.00000 -6.93000 1 Pb_7 6.93000 4.22500 5.38000 -1.21275 1 Pb_8 6.94736 -4.22500 5.38000 -1.21275 1 Pb_8 6.94736 4.22500 -5.38000 -1.21275 1 Pb_8 6.94736 -4.22500 -5.38000 -1.21275 1 Pb_8 6.94736 1.56072 6.72500 1.12613 3 O_9 6.99497 1.56072 -6.72500 1.12613 3 O_9 6.99497 -6.40764 2.69000 -0.98960 2 S_14 7.01949 -6.40764 -2.69000 -0.98960 2 S_14 7.01949 4.22500 0.00000 5.71725 1 Pb_9 7.10898 -4.22500 0.00000 5.71725 1 Pb_9 7.1089 END