data_2202478 _journal_name_full 'Acta Crystallographica, Section E' _journal_year 2003 _journal_volume 59 _journal_page_first o1226 _journal_page_last o1227 _publ_section_title ; 2,3,5,6-Tetrahydroxy-1,4-dinitrocyclohexane dihydrate ; loop_ _publ_author_name 'Gilardi, Richard' 'Evans, Robin N.' _chemical_formula_moiety 'C6 H10 N2 O8, 2H2 O' _chemical_formula_sum 'C6 H14 N2 O10' _chemical_formula_iupac 'C6 H10 N2 O8, 2H2 O' _chemical_formula_weight 274.19 _symmetry_cell_setting Triclinic _symmetry_space_group_name_H-M 'P -1' _symmetry_space_group_name_Hall '-P 1' loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, -y, -z' _cell_length_a 4.7309(5) _cell_length_b 7.8835(9) _cell_length_c 8.0592(9) _cell_angle_alpha 65.180(2) _cell_angle_beta 86.143(2) _cell_angle_gamma 85.995(2) _cell_volume 271.91(5) _cell_formula_units_Z 1 _cell_measurement_temperature 93(2) _exptl_crystal_density_diffrn 1.674 _diffrn_ambient_temperature 93(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 0.4621(3) 0.0855(2) 0.1334(2) 0.0119(3) Uani d . 1 . . C H1A 0.5494 0.1282 0.2181 0.014 Uiso calc R 1 . . H O1 0.1624(2) 0.10772(17) 0.14720(16) 0.0148(3) Uani d . 1 . . O H1H 0.121(4) 0.207(3) 0.167(3) 0.022 Uiso d . 1 . . H C2 0.5768(3) 0.1966(2) -0.0627(2) 0.0120(3) Uani d . 1 . . C H2A 0.7887 0.1840 -0.0666 0.014 Uiso calc R 1 . . H O2 0.4895(2) 0.38755(16) -0.11657(16) 0.0153(3) Uani d . 1 . . O H2H 0.626(5) 0.450(3) -0.146(3) 0.023 Uiso d . 1 . . H C3 0.4625(3) 0.1227(2) -0.1897(2) 0.0125(3) Uani d . 1 . . C H3A 0.2514 0.1426 -0.1903 0.015 Uiso calc R 1 . . H N3 0.5841(3) 0.22559(19) -0.38254(18) 0.0143(3) Uani d . 1 . . N O3A 0.8056(2) 0.30722(17) -0.40633(16) 0.0203(3) Uani d . 1 . . O O3B 0.4568(2) 0.21747(18) -0.50704(16) 0.0217(3) Uani d . 1 . . O O1W 0.0215(2) 0.41843(17) 0.21501(18) 0.0149(3) Uani d . 1 . . O H1W -0.128(5) 0.476(3) 0.172(3) 0.022 Uiso d . 1 . . H H2W -0.015(4) 0.391(3) 0.324(3) 0.022 Uiso d . 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 0.0107(6) 0.0133(7) 0.0137(8) -0.0024(5) 0.0010(5) -0.0075(6) O1 0.0109(5) 0.0159(6) 0.0200(6) -0.0010(4) 0.0025(4) -0.0102(5) C2 0.0108(6) 0.0111(7) 0.0150(8) -0.0022(5) 0.0020(5) -0.0064(6) O2 0.0140(5) 0.0105(6) 0.0208(6) -0.0028(4) 0.0020(4) -0.0061(5) C3 0.0123(6) 0.0140(8) 0.0101(7) -0.0019(6) 0.0021(5) -0.0042(6) N3 0.0159(6) 0.0142(7) 0.0127(7) -0.0004(5) 0.0002(5) -0.0058(6) O3A 0.0190(6) 0.0237(7) 0.0175(6) -0.0095(5) 0.0049(4) -0.0075(5) O3B 0.0243(6) 0.0276(7) 0.0139(6) -0.0036(5) -0.0017(5) -0.0087(5) O1W 0.0141(5) 0.0158(6) 0.0144(6) -0.0002(4) 0.0013(4) -0.0064(5) 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 O1 . 1.4192(17) ? C1 C3 2_655 1.530(2) ? C1 C2 . 1.532(2) ? C1 H1A . 1.00 ? O1 H1H . 0.87(2) ? C2 O2 . 1.4188(18) ? C2 C3 . 1.517(2) ? C2 H2A . 1.00 ? O2 H2H . 0.80(2) ? C3 N3 . 1.5136(19) ? C3 C1 2_655 1.530(2) ? C3 H3A . 1.00 ? N3 O3A . 1.2300(17) ? N3 O3B . 1.2303(18) ? O1W H1W . 0.83(2) ? O1W H2W . 0.82(2) ?