data_2012160 _journal_name_full 'Acta Crystallographica, Section C' _journal_year 2001 _journal_volume 57 _journal_page_first 942 _journal_page_last 945 _publ_section_title ; Triclinic and orthorhombic polymorphs of 2-iodo-4-nitroaniline: interplay of hydrogen bonds, nitro...I interactions and aromatic \p...\p stacking interactions ; loop_ _publ_author_name 'McWilliam, Susan A.' 'Skakle, Janet M.S.' 'Low, John N.' 'Wardell, James L.' 'Garden, Simon J.' 'Pinto, Angelo C.' 'Torres, Jose C.' 'Glidewell, Christopher' _chemical_formula_moiety 'C6 H5 I N2 O2' _chemical_formula_sum 'C6 H5 I N2 O2' _chemical_formula_weight 264.02 _symmetry_cell_setting orthorhombic _symmetry_space_group_name_H-M 'P b c a' loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x+1/2, -y, z+1/2' '-x, y+1/2, -z+1/2' 'x+1/2, -y+1/2, -z' '-x, -y, -z' 'x-1/2, y, -z-1/2' 'x, -y-1/2, z-1/2' '-x-1/2, y-1/2, z' _cell_length_a 7.4215(5) _cell_length_b 12.6755(9) _cell_length_c 16.4638(11) _cell_angle_alpha 90.00 _cell_angle_beta 90.00 _cell_angle_gamma 90.00 _cell_volume 1548.77(18) _cell_formula_units_Z 8 _cell_measurement_temperature 296(2) _exptl_crystal_density_diffrn 2.265 _diffrn_ambient_temperature 296(2) loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_calc_flag _atom_site_refinement_flags _atom_site_occupancy _atom_site_disorder_assembly _atom_site_disorder_group _atom_site_type_symbol C1 .5827(11) .4747(7) .3056(5) .0464(19) Uani d . 1 . . C N1 .5512(11) .4240(6) .3743(5) .062(2) Uani d . 1 . . N C2 .6364(10) .5828(7) .3030(4) .0427(19) Uani d . 1 . . C I2 .66772(8) .66835(5) .41043(3) .0531(3) Uani d . 1 . . I C3 .6636(11) .6331(6) .2307(5) .0426(17) Uani d . 1 . . C C4 .6401(11) .5789(7) .1593(5) .0438(19) Uani d . 1 . . C N4 .6642(10) .6332(7) .0834(4) .0529(18) Uani d . 1 . . N O1 .6825(10) .7298(6) .0850(4) .0669(19) Uani d . 1 . . O O2 .6703(9) .5836(6) .0201(4) .075(2) Uani d . 1 . . O C5 .5885(12) .4739(8) .1586(6) .056(2) Uani d . 1 . . C C6 .5595(11) .4233(7) .2307(6) .050(2) Uani d . 1 . . C H11 .5164 .3593 .3734 .075 Uiso calc R 1 . . H H12 .5655 .4557 .4201 .075 Uiso calc R 1 . . H H3 .6979 .7036 .2299 .051 Uiso calc R 1 . . H H5 .5737 .4383 .1096 .067 Uiso calc R 1 . . H H6 .5234 .3530 .2302 .060 Uiso calc R 1 . . H loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 C1 .039(5) .049(5) .052(4) .002(4) -.003(4) .005(4) N1 .057(5) .067(5) .062(4) -.007(4) -.010(4) .025(4) C2 .027(4) .062(5) .039(4) .009(3) -.003(3) -.003(4) I2 .0436(3) .0690(5) .0468(3) .0027(3) .0007(3) -.0096(3) C3 .031(4) .046(4) .051(4) .000(4) .001(4) .001(3) C4 .031(4) .057(5) .043(4) .008(4) -.001(3) -.003(4) N4 .036(4) .079(6) .044(4) .000(4) .005(3) .005(4) O1 .076(5) .069(5) .056(4) .002(4) .008(3) .014(3) O2 .076(5) .107(6) .043(3) -.001(4) .011(3) -.012(4) C5 .047(5) .063(6) .058(5) -.002(4) -.004(4) -.014(4) C6 .041(5) .043(5) .067(5) -.003(4) -.006(4) .003(4) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag C1 N1 . 1.323(10) no C1 C6 . 1.404(11) no C1 C2 . 1.428(12) no N1 H11 . .8600 no N1 H12 . .8600 no C2 C3 . 1.365(11) no C2 I2 . 2.087(8) no C3 C4 . 1.373(11) no C3 H3 . .9300 no C4 C5 . 1.384(12) no C4 N4 . 1.439(10) no N4 O2 . 1.218(9) no N4 O1 . 1.231(12) no C5 C6 . 1.368(12) no C5 H5 . .9300 no C6 H6 . .9300 no