H6 I3 N O9 Bordet P, Boucherle J, Santoro A, Marezio M Solid State Ionics 21 (1986) 243-254 Crystal structure and proton conductivity of N H4 H2 (I O3)3 and K H2(I O3)3 _cod_database_code 1008705 _database_code_amcsd 0016591 8.396 8.363 8.207 65.57 60.13 70.33 P-1 atom x y z occ I1 .8106 .1896 .7522 I2 .2410 .7316 .7802 I3 .3023 .2008 .7818 O1 .7702 .4289 .6008 O2 .8395 .0932 .5704 O3 .1300 .5499 .8266 O4 .4704 .6600 .6137 O5 .4699 .2257 .8413 O6 .0515 .1850 .6687 O7 .3954 -.0187 .7511 O8 .2662 .6448 .0067 O9 .1236 .1402 .0346 N1 .7291 .7283 .7607 H1 .787 .7668 .813 H2 .8143 .7323 .619 H3 .616 .812 .7667 H4 .2888 .3988 .1605 H5 .3605 .5224 .3678 H6 -.026 .475 .042 .5 H7 .039 -.022 .481 .5