#------------------------------------------------------------------------------ #$Date: 2025-08-19 07:12:48 +0100 (Tue, 19 Aug 2025) $ #$Revision: 301798 $ #$URL: svn://www.crystallography.net/cod/cif/2/01/29/2012944.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/. The original data for this entry # were provided by IUCr Journals, http://journals.iucr.org/. # # The file may be used within the scientific community so long as # proper attribution is given to the journal article from which the # data were obtained. # data_2012944 loop_ _publ_author_name 'Nakano, Hiroyuki' 'Ozeki, Tomoji' 'Yagasaki, Atsushi' _publ_section_title ; (Et~4~N)~4~[V~4~O~12~]·2H~2~O ; _journal_issue 9 _journal_name_full 'Acta Crystallographica Section C' _journal_page_first m464 _journal_page_last m465 _journal_paper_doi 10.1107/S0108270102013008 _journal_volume 58 _journal_year 2002 _chemical_formula_iupac '(C8 H20 N)4 [V4 O12] , 2H2 O' _chemical_formula_moiety '4(C8 H20 N) 1+ , O12 V4 4- , 2(H2 O)' _chemical_formula_structural '(C8 H20 N)4 [V4 O12] , 2H2 O' _chemical_formula_sum 'C32 H84 N4 O14 V4' _chemical_formula_weight 952.79 _chemical_name_common ; Tetrakis(tetraethylammonium) cyclotetravanadate dihydrate ; _chemical_name_systematic ; Tetrakis(tetraethylammonium) cyclo-tetra-\m-oxo-tetrakis[dioxovanadium(V)] dihydrate ; _space_group_IT_number 14 _symmetry_cell_setting monoclinic _symmetry_space_group_name_Hall '-P 2yn' _symmetry_space_group_name_H-M 'P 1 21/n 1' _atom_sites_solution_hydrogens geom _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _cell_angle_alpha 90 _cell_angle_beta 103.8360(10) _cell_angle_gamma 90 _cell_formula_units_Z 2 _cell_length_a 14.0187(3) _cell_length_b 10.5729(2) _cell_length_c 16.0212(4) _cell_measurement_reflns_used 4000 _cell_measurement_temperature 90(2) _cell_measurement_theta_max 30.50 _cell_measurement_theta_min 1.00 _cell_volume 2305.73(9) _computing_cell_refinement 'SAINT (Bruker, 1998)' _computing_data_collection 'SMART (Bruker, 1998)' _computing_data_reduction SAINT _computing_molecular_graphics 'ORTEPIII (Burnett & Johnson, 1996)' _computing_structure_refinement 'SHELXL97 (Sheldrick, 1997)' _computing_structure_solution 'SHELXS97 (Sheldrick, 1997)' _diffrn_ambient_temperature 90(2) _diffrn_measured_fraction_theta_full 0.998 _diffrn_measured_fraction_theta_max 0.998 _diffrn_measurement_device_type 'Bruker SMART CCD area-detector' _diffrn_measurement_method \w _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'Rigaku Ultrax-18 rotating anode' _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.114 _diffrn_reflns_av_sigmaI/netI 0.135 _diffrn_reflns_limit_h_max 20 _diffrn_reflns_limit_h_min -16 _diffrn_reflns_limit_k_max 15 _diffrn_reflns_limit_k_min -14 _diffrn_reflns_limit_l_max 22 _diffrn_reflns_limit_l_min -21 _diffrn_reflns_number 22145 _diffrn_reflns_theta_full 30.50 _diffrn_reflns_theta_max 30.50 _diffrn_reflns_theta_min 1.74 _exptl_absorpt_coefficient_mu 0.846 _exptl_absorpt_correction_T_max 0.983 _exptl_absorpt_correction_T_min 0.631 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_process_details '(SADABS; Sheldrick, 1996)' _exptl_crystal_colour colourless _exptl_crystal_density_diffrn 1.372 _exptl_crystal_density_meas ? _exptl_crystal_density_method 'not measured' _exptl_crystal_description plate _exptl_crystal_F_000 1016 _exptl_crystal_size_max 0.40 _exptl_crystal_size_mid 0.30 _exptl_crystal_size_min 0.02 _refine_diff_density_max 0.72 _refine_diff_density_min -0.87 _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 0.915 _refine_ls_hydrogen_treatment constr _refine_ls_matrix_type full _refine_ls_number_parameters 244 _refine_ls_number_reflns 7001 _refine_ls_number_restraints 0 _refine_ls_restrained_S_all 0.915 _refine_ls_R_factor_all 0.125 _refine_ls_R_factor_gt 0.058 _refine_ls_shift/su_max <0.001 _refine_ls_shift/su_mean 0.000 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'calc w = 1/[\s^2^(Fo^2^)+(0.0673P)^2^] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_gt 0.120 _refine_ls_wR_factor_ref 0.141 _reflns_number_gt 3962 _reflns_number_total 7001 _reflns_threshold_expression I>2\s(I) _cod_data_source_file ob1072.cif _cod_data_source_block I _cod_depositor_comments ; The following automatic conversions were performed: '_exptl_crystal_density_meas' value 'not measured' was changed to '?' - the value is perceived as not measured. Automatic conversion script Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas ; _cod_original_cell_volume 2305.70(10) _cod_original_sg_symbol_H-M 'P 21/n' _cod_database_code 2012944 _cod_database_fobs_code 2012944 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x+1/2, y+1/2, -z+1/2' '-x, -y, -z' 'x-1/2, -y-1/2, z-1/2' 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 V1 0.11611(4) 0.14752(5) 0.03933(3) 0.01153(13) Uani d . 1 . . V V2 0.06027(4) -0.05252(5) -0.13271(3) 0.01176(13) Uani d . 1 . . V O1 0.16926(18) 0.2866(2) 0.03968(14) 0.0178(5) Uani d . 1 . . O O2 0.19662(17) 0.0456(2) 0.09524(14) 0.0167(5) Uani d . 1 . . O O3 0.00201(17) -0.0213(2) -0.23230(13) 0.0167(5) Uani d . 1 . . O O4 0.16905(17) -0.1148(2) -0.13378(15) 0.0178(5) Uani d . 1 . . O O5 0.07585(17) 0.0937(2) -0.07161(14) 0.0153(5) Uani d . 1 . . O O6 0.01091(17) 0.1636(2) 0.08590(13) 0.0151(5) Uani d . 1 . . O O7 0.32751(18) -0.0695(2) 0.01205(16) 0.0230(6) Uani d . 1 . . O H1 0.2822 -0.0320 0.0393 0.034 Uiso d . 1 . . H H2 0.2808 -0.1174 -0.0381 0.034 Uiso d . 1 . . H N1 0.3428(2) 0.1750(2) 0.33564(16) 0.0130(5) Uani d . 1 . . N C1 0.2362(2) 0.1484(3) 0.29060(19) 0.0156(6) Uani d . 1 . . C H1A 0.2341 0.1111 0.2335 0.019 Uiso calc R 1 . . H H1B 0.2097 0.0848 0.3244 0.019 Uiso calc R 1 . . H C2 0.3965(3) 0.0502(3) 0.3373(2) 0.0206(7) Uani d . 1 . . C H2A 0.3861 0.0192 0.2775 0.025 Uiso calc R 1 . . H H2B 0.3660 -0.0120 0.3693 0.025 Uiso calc R 1 . . H C3 0.3874(3) 0.2768(3) 0.2900(2) 0.0175(7) Uani d . 1 . . C H3A 0.4564 0.2900 0.3218 0.021 Uiso calc R 1 . . H H3B 0.3517 0.3569 0.2926 0.021 Uiso calc R 1 . . H C4 0.3515(3) 0.2252(3) 0.42608(19) 0.0171(7) Uani d . 1 . . C H4A 0.3240 0.3119 0.4219 0.021 Uiso calc R 1 . . H H4B 0.4220 0.2312 0.4554 0.021 Uiso calc R 1 . . H C5 0.1705(3) 0.2637(4) 0.2785(2) 0.0256(8) Uani d . 1 . . C H5A 0.1035 0.2392 0.2493 0.038 Uiso calc R 1 . . H H5B 0.1950 0.3265 0.2438 0.038 Uiso calc R 1 . . H H5C 0.1706 0.3001 0.3348 0.038 Uiso calc R 1 . . H C6 0.5061(3) 0.0530(4) 0.3772(3) 0.0378(11) Uani d . 1 . . C H6A 0.5335 -0.0319 0.3751 0.057 Uiso calc R 1 . . H H6B 0.5178 0.0807 0.4372 0.057 Uiso calc R 1 . . H H6C 0.5379 0.1119 0.3451 0.057 Uiso calc R 1 . . H C7 0.3860(3) 0.2499(4) 0.1964(2) 0.0218(7) Uani d . 1 . . C H7A 0.4162 0.3207 0.1728 0.033 Uiso calc R 1 . . H H7B 0.3179 0.2394 0.1635 0.033 Uiso calc R 1 . . H H7C 0.4230 0.1723 0.1928 0.033 Uiso calc R 1 . . H C8 0.2999(3) 0.1459(3) 0.4817(2) 0.0194(7) Uani d . 1 . . C H8A 0.3093 0.1851 0.5385 0.029 Uiso calc R 1 . . H H8B 0.3278 0.0604 0.4879 0.029 Uiso calc R 1 . . H H8C 0.2296 0.1412 0.4544 0.029 Uiso calc R 1 . . H N2 0.3596(2) 0.2502(3) 0.87870(17) 0.0171(6) Uani d . 1 . . N C9 0.4009(3) 0.2293(3) 0.9744(2) 0.0197(7) Uani d . 1 . . C H9A 0.3559 0.2687 1.0060 0.024 Uiso calc R 1 . . H H9B 0.4022 0.1373 0.9861 0.024 Uiso calc R 1 . . H C10 0.2550(3) 0.1984(3) 0.8593(2) 0.0200(7) Uani d . 1 . . C H10A 0.2203 0.2374 0.8998 0.024 Uiso calc R 1 . . H H10B 0.2583 0.1062 0.8704 0.024 Uiso calc R 1 . . H C11 0.4217(3) 0.1843(4) 0.8257(3) 0.0292(9) Uani d . 1 . . C H11A 0.3910 0.1987 0.7640 0.035 Uiso calc R 1 . . H H11B 0.4874 0.2245 0.8384 0.035 Uiso calc R 1 . . H C12 0.3602(3) 0.3897(3) 0.8552(2) 0.0232(8) Uani d . 1 . . C H12A 0.4290 0.4197 0.8676 0.028 Uiso calc R 1 . . H H12B 0.3320 0.3991 0.7927 0.028 Uiso calc R 1 . . H C13 0.5035(3) 0.2820(4) 1.0096(3) 0.0281(8) Uani d . 1 . . C H13A 0.5245 0.2646 1.0714 0.042 Uiso calc R 1 . . H H13B 0.5030 0.3736 1.0000 0.042 Uiso calc R 1 . . H H13C 0.5493 0.2419 0.9801 0.042 Uiso calc R 1 . . H C14 0.1942(3) 0.2207(4) 0.7677(2) 0.0343(10) Uani d . 1 . . C H14A 0.1286 0.1843 0.7614 0.051 Uiso calc R 1 . . H H14B 0.2265 0.1802 0.7268 0.051 Uiso calc R 1 . . H H14C 0.1885 0.3117 0.7563 0.051 Uiso calc R 1 . . H C15 0.4350(4) 0.0436(4) 0.8406(3) 0.0418(11) Uani d . 1 . . C H15A 0.4757 0.0096 0.8040 0.063 Uiso calc R 1 . . H H15B 0.3706 0.0020 0.8265 0.063 Uiso calc R 1 . . H H15C 0.4672 0.0279 0.9011 0.063 Uiso calc R 1 . . H C16 0.3027(3) 0.4724(3) 0.9032(3) 0.0295(9) Uani d . 1 . . C H16A 0.3059 0.5606 0.8853 0.044 Uiso calc R 1 . . H H16B 0.3311 0.4653 0.9652 0.044 Uiso calc R 1 . . H H16C 0.2340 0.4448 0.8902 0.044 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 V1 0.0111(3) 0.0147(3) 0.0071(2) -0.0009(2) -0.00102(19) -0.0003(2) V2 0.0111(3) 0.0162(3) 0.0070(2) 0.0007(2) 0.00013(19) 0.0000(2) O1 0.0223(14) 0.0173(12) 0.0138(11) -0.0030(10) 0.0043(10) -0.0009(9) O2 0.0174(12) 0.0185(12) 0.0115(11) 0.0026(10) -0.0020(9) -0.0002(9) O3 0.0186(13) 0.0211(12) 0.0086(11) 0.0018(10) -0.0005(9) 0.0003(9) O4 0.0127(12) 0.0245(13) 0.0156(12) 0.0018(10) 0.0023(9) 0.0007(9) O5 0.0157(12) 0.0194(11) 0.0090(10) -0.0017(10) -0.0004(9) -0.0031(9) O6 0.0143(12) 0.0200(12) 0.0104(11) 0.0006(9) 0.0015(9) 0.0012(9) O7 0.0165(13) 0.0253(14) 0.0267(14) 0.0043(11) 0.0043(11) 0.0006(11) N1 0.0127(14) 0.0148(13) 0.0091(12) 0.0001(10) -0.0022(10) -0.0017(10) C1 0.0157(16) 0.0196(16) 0.0095(14) -0.0060(14) -0.0006(12) -0.0042(13) C2 0.027(2) 0.0168(16) 0.0153(16) 0.0079(15) -0.0001(14) -0.0033(14) C3 0.0144(17) 0.0219(18) 0.0144(16) -0.0056(13) -0.0001(13) -0.0013(13) C4 0.0222(18) 0.0180(17) 0.0079(14) 0.0003(14) -0.0029(13) -0.0035(12) C5 0.0151(18) 0.035(2) 0.0236(19) 0.0043(16) -0.0026(14) -0.0056(16) C6 0.029(2) 0.043(2) 0.032(2) 0.018(2) -0.0122(17) -0.011(2) C7 0.0193(18) 0.031(2) 0.0137(16) -0.0043(16) 0.0010(13) 0.0014(14) C8 0.0254(19) 0.0194(17) 0.0122(15) 0.0033(15) 0.0021(13) 0.0023(13) N2 0.0189(15) 0.0168(14) 0.0182(14) -0.0031(12) 0.0094(12) -0.0011(11) C9 0.0197(19) 0.0192(17) 0.0204(17) -0.0021(14) 0.0053(14) 0.0001(14) C10 0.0170(18) 0.0227(18) 0.0214(18) -0.0070(14) 0.0071(14) -0.0002(14) C11 0.026(2) 0.034(2) 0.033(2) -0.0041(17) 0.0181(18) -0.0145(17) C12 0.028(2) 0.0195(17) 0.0239(19) -0.0049(15) 0.0100(16) 0.0032(14) C13 0.018(2) 0.027(2) 0.037(2) -0.0019(16) 0.0020(16) -0.0012(17) C14 0.038(3) 0.045(3) 0.0162(19) -0.017(2) -0.0003(17) 0.0006(17) C15 0.047(3) 0.040(3) 0.037(2) 0.018(2) 0.008(2) -0.010(2) C16 0.035(2) 0.0201(19) 0.033(2) -0.0002(16) 0.0082(18) -0.0010(16) loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C 0.0033 0.0016 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' H H 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' N N 0.0061 0.0033 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O 0.0106 0.0060 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' V V 0.3005 0.5294 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle_site_symmetry_3 _geom_angle O1 V1 O2 . 109.20(12) O1 V1 O6 . 109.07(11) O2 V1 O6 . 110.73(11) O1 V1 O5 . 108.44(11) O2 V1 O5 . 109.62(11) O6 V1 O5 . 109.75(10) O3 V2 O4 . 108.26(11) O3 V2 O5 . 108.69(11) O4 V2 O5 . 110.50(11) O3 V2 O6 3 109.67(11) O4 V2 O6 3 110.10(11) O5 V2 O6 3 109.60(10) V2 O5 V1 . 139.57(13) V1 O6 V2 3 133.71(13) H1 O7 H2 . 101 C2 N1 C3 . 111.5(3) C2 N1 C4 . 111.1(2) C3 N1 C4 . 105.3(2) C2 N1 C1 . 105.9(2) C3 N1 C1 . 111.9(2) C4 N1 C1 . 111.3(2) C5 C1 N1 . 114.2(3) C5 C1 H1A . 108.7 N1 C1 H1A . 108.7 C5 C1 H1B . 108.7 N1 C1 H1B . 108.7 H1A C1 H1B . 107.6 N1 C2 C6 . 116.1(3) N1 C2 H2A . 108.3 C6 C2 H2A . 108.3 N1 C2 H2B . 108.3 C6 C2 H2B . 108.3 H2A C2 H2B . 107.4 N1 C3 C7 . 115.6(3) N1 C3 H3A . 108.4 C7 C3 H3A . 108.4 N1 C3 H3B . 108.4 C7 C3 H3B . 108.4 H3A C3 H3B . 107.4 N1 C4 C8 . 115.1(3) N1 C4 H4A . 108.5 C8 C4 H4A . 108.5 N1 C4 H4B . 108.5 C8 C4 H4B . 108.5 H4A C4 H4B . 107.5 C1 C5 H5A . 109.5 C1 C5 H5B . 109.5 H5A C5 H5B . 109.5 C1 C5 H5C . 109.5 H5A C5 H5C . 109.5 H5B C5 H5C . 109.5 C2 C6 H6A . 109.5 C2 C6 H6B . 109.5 H6A C6 H6B . 109.5 C2 C6 H6C . 109.5 H6A C6 H6C . 109.5 H6B C6 H6C . 109.5 C3 C7 H7A . 109.5 C3 C7 H7B . 109.5 H7A C7 H7B . 109.5 C3 C7 H7C . 109.5 H7A C7 H7C . 109.5 H7B C7 H7C . 109.5 C4 C8 H8A . 109.5 C4 C8 H8B . 109.5 H8A C8 H8B . 109.5 C4 C8 H8C . 109.5 H8A C8 H8C . 109.5 H8B C8 H8C . 109.5 C9 N2 C11 . 111.4(3) C9 N2 C12 . 111.5(3) C11 N2 C12 . 105.5(3) C9 N2 C10 . 105.6(2) C11 N2 C10 . 111.8(3) C12 N2 C10 . 111.0(3) C13 C9 N2 . 114.8(3) C13 C9 H9A . 108.6 N2 C9 H9A . 108.6 C13 C9 H9B . 108.6 N2 C9 H9B . 108.6 H9A C9 H9B . 107.6 N2 C10 C14 . 115.4(3) N2 C10 H10A . 108.4 C14 C10 H10A . 108.4 N2 C10 H10B . 108.4 C14 C10 H10B . 108.4 H10A C10 H10B . 107.5 C15 C11 N2 . 115.3(3) C15 C11 H11A . 108.5 N2 C11 H11A . 108.5 C15 C11 H11B . 108.5 N2 C11 H11B . 108.5 H11A C11 H11B . 107.5 C16 C12 N2 . 113.5(3) C16 C12 H12A . 108.9 N2 C12 H12A . 108.9 C16 C12 H12B . 108.9 N2 C12 H12B . 108.9 H12A C12 H12B . 107.7 C9 C13 H13A . 109.5 C9 C13 H13B . 109.5 H13A C13 H13B . 109.5 C9 C13 H13C . 109.5 H13A C13 H13C . 109.5 H13B C13 H13C . 109.5 C10 C14 H14A . 109.5 C10 C14 H14B . 109.5 H14A C14 H14B . 109.5 C10 C14 H14C . 109.5 H14A C14 H14C . 109.5 H14B C14 H14C . 109.5 C11 C15 H15A . 109.5 C11 C15 H15B . 109.5 H15A C15 H15B . 109.5 C11 C15 H15C . 109.5 H15A C15 H15C . 109.5 H15B C15 H15C . 109.5 C12 C16 H16A . 109.5 C12 C16 H16B . 109.5 H16A C16 H16B . 109.5 C12 C16 H16C . 109.5 H16A C16 H16C . 109.5 H16B C16 H16C . 109.5 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 V1 O1 . 1.648(2) y V1 O2 . 1.659(2) y V1 O6 . 1.813(2) y V1 O5 . 1.822(2) y V2 O3 . 1.643(2) y V2 O4 . 1.665(2) y V2 O5 . 1.815(2) y V2 O6 3 1.815(2) y O6 V2 3 1.815(2) ? O7 H1 . 0.94 ? O7 H2 . 1.04 ? N1 C2 . 1.517(4) ? N1 C3 . 1.518(4) ? N1 C4 . 1.520(4) ? N1 C1 . 1.521(4) ? C1 C5 . 1.512(5) ? C1 H1A . 0.99 ? C1 H1B . 0.99 ? C2 C6 . 1.517(5) ? C2 H2A . 0.99 ? C2 H2B . 0.99 ? C3 C7 . 1.521(4) ? C3 H3A . 0.99 ? C3 H3B . 0.99 ? C4 C8 . 1.526(5) ? C4 H4A . 0.99 ? C4 H4B . 0.99 ? C5 H5A . 0.98 ? C5 H5B . 0.98 ? C5 H5C . 0.98 ? C6 H6A . 0.98 ? C6 H6B . 0.98 ? C6 H6C . 0.98 ? C7 H7A . 0.98 ? C7 H7B . 0.98 ? C7 H7C . 0.98 ? C8 H8A . 0.98 ? C8 H8B . 0.98 ? C8 H8C . 0.98 ? N2 C9 . 1.521(4) ? N2 C11 . 1.523(4) ? N2 C12 . 1.523(4) ? N2 C10 . 1.525(4) ? C9 C13 . 1.520(5) ? C9 H9A . 0.99 ? C9 H9B . 0.99 ? C10 C14 . 1.528(5) ? C10 H10A . 0.99 ? C10 H10B . 0.99 ? C11 C15 . 1.511(6) ? C11 H11A . 0.99 ? C11 H11B . 0.99 ? C12 C16 . 1.517(5) ? C12 H12A . 0.99 ? C12 H12B . 0.99 ? C13 H13A . 0.98 ? C13 H13B . 0.98 ? C13 H13C . 0.98 ? C14 H14A . 0.98 ? C14 H14B . 0.98 ? C14 H14C . 0.98 ? C15 H15A . 0.98 ? C15 H15B . 0.98 ? C15 H15C . 0.98 ? C16 H16A . 0.98 ? C16 H16B . 0.98 ? C16 H16C . 0.98 ? loop_ _geom_hbond_atom_site_label_D _geom_hbond_atom_site_label_H _geom_hbond_atom_site_label_A _geom_hbond_distance_DH _geom_hbond_distance_HA _geom_hbond_distance_DA _geom_hbond_angle_DHA _geom_hbond_publ_flag O7 H1 O2 0.94 1.85 2.792(3) 178 y O7 H2 O4 1.04 1.91 2.853(3) 149 y loop_ _cod_related_entry_id _cod_related_entry_database _cod_related_entry_code 1 PubChem 139058662