# Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry # This journal is © The Royal Society of Chemistry 2013 ####################################################################### # # Cambridge Crystallographic Data Centre # CCDC # ####################################################################### # # This CIF contains data from an original supplementary publication # deposited with the CCDC, and may include chemical, crystal, # experimental, refinement, atomic coordinates, # anisotropic displacement parameters and molecular geometry data, # as required by the journal to which it was submitted. # # This CIF is provided on the understanding that it is used for bona # fide research purposes only. It may contain copyright material # of the CCDC or of third parties, and may not be copied or further # disseminated in any form, whether machine-readable or not, # except for the purpose of generating routine backup copies # on your local computer system. # # For further information on the CCDC, data deposition and # data retrieval see: # www.ccdc.cam.ac.uk # # Bona fide researchers may freely download Mercury and enCIFer # from this site to visualise CIF-encoded structures and # to carry out CIF format checking respectively. # data_poskbh_kkt #TrackingRef 'web_deposit_cif_file_0_KiTaeKim_1364019213.poskbh_kkt.cif' _audit_creation_method SHELXL-97 _chemical_name_systematic ; ? ; _chemical_name_common ? _chemical_melting_point ? _chemical_formula_moiety 'C21 H24 N4 O6 S' _chemical_formula_sum 'C21 H24 N4 O6 S' _chemical_formula_weight 460.50 loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source C C 0.0034 0.0017 '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 0.0066 0.0035 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' O O 0.0116 0.0064 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' S S 0.1305 0.1308 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' _symmetry_cell_setting Monoclinic _symmetry_space_group_name_H-M P2(1) loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, y+1/2, -z' _cell_length_a 8.2280(16) _cell_length_b 8.3500(17) _cell_length_c 15.938(3) _cell_angle_alpha 90.00 _cell_angle_beta 99.90(3) _cell_angle_gamma 90.00 _cell_volume 1078.7(4) _cell_formula_units_Z 2 _cell_measurement_temperature 100(2) _cell_measurement_reflns_used 23036 _cell_measurement_theta_min 0.42 _cell_measurement_theta_max 33.57 _exptl_crystal_description plate _exptl_crystal_colour colorless _exptl_crystal_size_max 0.04 _exptl_crystal_size_mid 0.04 _exptl_crystal_size_min 0.02 _exptl_crystal_density_meas ? _exptl_crystal_density_diffrn 1.418 _exptl_crystal_density_method 'not measured' _exptl_crystal_F_000 484 _exptl_absorpt_coefficient_mu 0.167 _exptl_absorpt_correction_type empirical _exptl_absorpt_correction_T_min 0.9933 _exptl_absorpt_correction_T_max 0.9967 _exptl_absorpt_process_details 'HKL3000 Scalepack' _exptl_special_details ; ? ; _diffrn_ambient_temperature 100(2) _diffrn_radiation_wavelength 0.72999 _diffrn_radiation_type synchrotron _diffrn_radiation_source 'PLSII 2D bending magnet' _diffrn_radiation_monochromator 'Si(111) double crystal monochromator' _diffrn_measurement_device_type 'CCD area detector' _diffrn_measurement_method 'omega scan' _diffrn_detector_area_resol_mean ? _diffrn_reflns_number 8814 _diffrn_reflns_av_R_equivalents 0.0281 _diffrn_reflns_av_sigmaI/netI 0.0355 _diffrn_reflns_limit_h_min -10 _diffrn_reflns_limit_h_max 10 _diffrn_reflns_limit_k_min -10 _diffrn_reflns_limit_k_max 10 _diffrn_reflns_limit_l_min -19 _diffrn_reflns_limit_l_max 19 _diffrn_reflns_theta_min 2.66 _diffrn_reflns_theta_max 28.00 _reflns_number_total 4600 _reflns_number_gt 4337 _reflns_threshold_expression >2sigma(I) _computing_data_collection 'PAL ADSC Quantum-210 ADX Program' _computing_cell_refinement HKL3000 _computing_data_reduction HKL3000 _computing_structure_solution 'Bruker SHELXTL' _computing_structure_refinement 'Bruker SHELXTL' _computing_molecular_graphics 'Diamond 3' _computing_publication_material WinGX _refine_special_details ; Refinement of F^2^ against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F^2^, conventional R-factors R are based on F, with F set to zero for negative F^2^. The threshold expression of F^2^ > 2sigma(F^2^) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F^2^ are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. ; _refine_ls_structure_factor_coef Fsqd _refine_ls_matrix_type full _refine_ls_weighting_scheme calc _refine_ls_weighting_details 'calc w=1/[\s^2^(Fo^2^)+(0.0786P)^2^+0.1471P] where P=(Fo^2^+2Fc^2^)/3' _atom_sites_solution_primary direct _atom_sites_solution_secondary difmap _atom_sites_solution_hydrogens geom _chemical_absolute_configuration rm _refine_ls_hydrogen_treatment constr _refine_ls_extinction_method SHELXL _refine_ls_extinction_coef 0.078(6) _refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^ _refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881' _refine_ls_abs_structure_Flack -0.01(6) _refine_ls_number_reflns 4600 _refine_ls_number_parameters 294 _refine_ls_number_restraints 1 _refine_ls_R_factor_all 0.0434 _refine_ls_R_factor_gt 0.0385 _refine_ls_wR_factor_ref 0.1091 _refine_ls_wR_factor_gt 0.1072 _refine_ls_goodness_of_fit_ref 1.061 _refine_ls_restrained_S_all 1.061 _refine_ls_shift/su_max 0.000 _refine_ls_shift/su_mean 0.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_occupancy _atom_site_symmetry_multiplicity _atom_site_calc_flag _atom_site_refinement_flags _atom_site_disorder_assembly _atom_site_disorder_group S1 S 0.60282(5) 0.91176(5) 0.22233(3) 0.02132(13) Uani 1 1 d . . . O1 O 0.59909(18) 1.08480(17) 0.22507(9) 0.0248(3) Uani 1 1 d . . . O2 O 0.76271(18) 0.83819(18) 0.23020(10) 0.0273(3) Uani 1 1 d . . . O3 O 0.2254(2) 0.49733(19) 0.43226(10) 0.0333(4) Uani 1 1 d . . . O4 O 0.17211(17) 0.20952(18) 0.32861(9) 0.0240(3) Uani 1 1 d . . . O5 O 0.27308(19) -0.10354(18) 0.46898(10) 0.0300(3) Uani 1 1 d . . . H5 H 0.2073 -0.1529 0.4946 0.045 Uiso 1 1 calc R . . O6 O -0.0501(2) 0.2905(2) 0.43968(12) 0.0379(4) Uani 1 1 d . . . H6 H 0.0135 0.3561 0.4219 0.057 Uiso 1 1 calc R . . N1 N -0.0005(2) 0.8940(2) -0.10085(11) 0.0281(4) Uani 1 1 d . . . N2 N 0.5020(2) 0.8535(2) 0.29549(11) 0.0226(3) Uani 1 1 d . . . H2 H 0.4622 0.9247 0.3272 0.027 Uiso 1 1 calc R . . N3 N 0.3732(2) 0.6646(2) 0.36234(11) 0.0237(4) Uani 1 1 d . . . N4 N 0.3930(2) 0.3879(2) 0.34562(10) 0.0223(3) Uani 1 1 d . . . C1 C -0.1793(3) 0.8933(4) -0.12014(15) 0.0386(6) Uani 1 1 d . . . H1A H -0.2226 0.8232 -0.0799 0.058 Uiso 1 1 calc R . . H1B H -0.2154 0.8540 -0.1783 0.058 Uiso 1 1 calc R . . H1C H -0.2207 1.0024 -0.1153 0.058 Uiso 1 1 calc R . . C2 C 0.0648(3) 1.0000(4) -0.16014(15) 0.0389(5) Uani 1 1 d . . . H2A H 0.0221 1.1086 -0.1553 0.058 Uiso 1 1 calc R . . H2B H 0.0304 0.9610 -0.2185 0.058 Uiso 1 1 calc R . . H2C H 0.1855 1.0015 -0.1463 0.058 Uiso 1 1 calc R . . C3 C 0.0691(2) 0.9162(3) -0.01409(12) 0.0236(4) Uani 1 1 d . . . C4 C -0.0194(2) 0.9775(3) 0.04450(13) 0.0264(4) Uani 1 1 d . . . H4 H -0.1324 1.0043 0.0273 0.032 Uiso 1 1 calc R . . C5 C 0.0566(2) 1.0006(3) 0.12985(13) 0.0261(4) Uani 1 1 d . . . H5A H -0.0071 1.0410 0.1695 0.031 Uiso 1 1 calc R . . C6 C 0.2190(2) 0.9666(2) 0.15703(13) 0.0238(4) Uani 1 1 d . . . H6A H 0.2686 0.9889 0.2142 0.029 Uiso 1 1 calc R . . C7 C 0.3145(2) 0.8973(2) 0.09962(12) 0.0206(4) Uani 1 1 d . . . C8 C 0.2373(2) 0.8671(2) 0.01375(13) 0.0226(4) Uani 1 1 d . . . C9 C 0.3263(3) 0.7824(2) -0.04084(14) 0.0256(4) Uani 1 1 d . . . H9 H 0.2730 0.7566 -0.0969 0.031 Uiso 1 1 calc R . . C10 C 0.4861(3) 0.7371(3) -0.01508(14) 0.0272(4) Uani 1 1 d . . . H10 H 0.5423 0.6794 -0.0527 0.033 Uiso 1 1 calc R . . C11 C 0.5677(2) 0.7758(2) 0.06723(14) 0.0249(4) Uani 1 1 d . . . H11 H 0.6806 0.7483 0.0843 0.030 Uiso 1 1 calc R . . C12 C 0.4844(2) 0.8537(2) 0.12332(13) 0.0214(4) Uani 1 1 d . . . C13 C 0.4795(2) 0.7000(2) 0.30757(13) 0.0219(4) Uani 1 1 d . . . C14 C 0.5488(3) 0.5647(2) 0.27138(14) 0.0265(4) Uani 1 1 d . . . H14 H 0.6257 0.5790 0.2339 0.032 Uiso 1 1 calc R . . C15 C 0.5030(2) 0.4166(3) 0.29147(13) 0.0266(4) Uani 1 1 d . . . H15 H 0.5491 0.3274 0.2670 0.032 Uiso 1 1 calc R . . C16 C 0.3241(3) 0.5143(2) 0.38372(12) 0.0235(4) Uani 1 1 d . . . C17 C 0.3435(2) 0.2222(2) 0.35919(13) 0.0233(4) Uani 1 1 d . . . H17 H 0.4031 0.1493 0.3250 0.028 Uiso 1 1 calc R . . C18 C 0.3742(3) 0.1654(3) 0.45136(14) 0.0309(5) Uani 1 1 d . . . H18A H 0.3818 0.2575 0.4910 0.037 Uiso 1 1 calc R . . H18B H 0.4777 0.1028 0.4640 0.037 Uiso 1 1 calc R . . C19 C 0.2250(3) 0.0604(2) 0.45934(14) 0.0277(4) Uani 1 1 d . . . H19 H 0.1752 0.0957 0.5092 0.033 Uiso 1 1 calc R . . C20 C 0.1025(3) 0.0899(2) 0.37589(13) 0.0252(4) Uani 1 1 d . . . H20 H 0.0883 -0.0115 0.3421 0.030 Uiso 1 1 calc R . . C21 C -0.0648(3) 0.1507(3) 0.38776(16) 0.0330(5) Uani 1 1 d . . . H21A H -0.1315 0.1756 0.3315 0.040 Uiso 1 1 calc R . . H21B H -0.1228 0.0661 0.4147 0.040 Uiso 1 1 calc R . . loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_23 _atom_site_aniso_U_13 _atom_site_aniso_U_12 S1 0.0236(2) 0.0167(2) 0.0251(2) 0.00060(17) 0.00812(15) -0.00037(17) O1 0.0309(7) 0.0164(7) 0.0283(8) -0.0002(5) 0.0085(6) -0.0032(5) O2 0.0233(7) 0.0269(8) 0.0327(8) 0.0022(6) 0.0074(5) 0.0015(6) O3 0.0535(9) 0.0196(7) 0.0335(8) -0.0015(6) 0.0266(7) -0.0036(7) O4 0.0268(7) 0.0249(7) 0.0211(7) 0.0015(5) 0.0061(5) -0.0023(5) O5 0.0432(8) 0.0182(7) 0.0337(8) 0.0046(6) 0.0209(6) -0.0002(6) O6 0.0422(9) 0.0249(8) 0.0541(11) -0.0065(7) 0.0292(8) -0.0023(7) N1 0.0283(8) 0.0308(10) 0.0254(9) -0.0028(7) 0.0053(6) -0.0057(7) N2 0.0281(8) 0.0181(8) 0.0238(9) -0.0002(6) 0.0103(6) 0.0019(6) N3 0.0320(9) 0.0172(8) 0.0242(9) 0.0012(6) 0.0116(6) 0.0003(6) N4 0.0276(8) 0.0163(8) 0.0240(8) -0.0001(6) 0.0076(6) -0.0001(6) C1 0.0307(10) 0.0497(15) 0.0342(12) -0.0094(11) 0.0023(8) -0.0012(11) C2 0.0464(13) 0.0426(13) 0.0272(11) 0.0051(10) 0.0054(9) -0.0112(11) C3 0.0265(9) 0.0193(9) 0.0258(10) -0.0030(8) 0.0067(7) -0.0020(8) C4 0.0261(9) 0.0259(10) 0.0278(10) -0.0016(8) 0.0064(7) 0.0030(8) C5 0.0283(9) 0.0256(10) 0.0268(10) -0.0045(8) 0.0118(7) 0.0033(8) C6 0.0294(9) 0.0225(9) 0.0210(10) -0.0032(7) 0.0088(7) 0.0016(7) C7 0.0250(8) 0.0141(8) 0.0250(9) 0.0009(7) 0.0105(7) -0.0001(7) C8 0.0268(9) 0.0176(8) 0.0256(10) -0.0021(7) 0.0102(7) -0.0032(7) C9 0.0299(10) 0.0221(9) 0.0271(10) -0.0047(8) 0.0111(8) -0.0047(8) C10 0.0333(10) 0.0221(9) 0.0299(12) -0.0066(8) 0.0161(8) -0.0014(8) C11 0.0248(9) 0.0180(9) 0.0347(11) -0.0010(7) 0.0129(8) 0.0022(7) C12 0.0263(9) 0.0147(8) 0.0251(10) 0.0012(7) 0.0095(7) -0.0004(7) C13 0.0228(8) 0.0207(9) 0.0221(10) 0.0014(7) 0.0040(7) -0.0002(7) C14 0.0277(9) 0.0225(10) 0.0327(11) 0.0000(8) 0.0147(8) 0.0008(8) C15 0.0280(9) 0.0195(9) 0.0342(11) -0.0012(9) 0.0108(7) 0.0025(8) C16 0.0340(10) 0.0159(9) 0.0220(9) -0.0004(7) 0.0082(7) -0.0016(7) C17 0.0268(9) 0.0152(9) 0.0286(11) 0.0004(7) 0.0065(7) -0.0007(7) C18 0.0408(12) 0.0205(10) 0.0289(11) 0.0046(8) -0.0008(9) -0.0059(9) C19 0.0391(11) 0.0190(10) 0.0280(11) -0.0004(7) 0.0140(8) 0.0018(8) C20 0.0324(10) 0.0193(9) 0.0261(11) -0.0047(7) 0.0116(8) -0.0034(8) C21 0.0293(11) 0.0278(11) 0.0442(13) -0.0078(10) 0.0130(9) -0.0050(9) _geom_special_details ; All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. ; loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_distance _geom_bond_site_symmetry_2 _geom_bond_publ_flag S1 O2 1.4377(15) . ? S1 O1 1.4460(15) . ? S1 N2 1.6177(18) . ? S1 C12 1.774(2) . ? O3 C16 1.222(3) . ? O4 C17 1.415(2) . ? O4 C20 1.429(2) . ? O5 C19 1.426(2) . ? O5 H5 0.8400 . ? O6 C21 1.424(3) . ? O6 H6 0.8400 . ? N1 C3 1.415(3) . ? N1 C1 1.450(3) . ? N1 C2 1.463(3) . ? N2 C13 1.313(3) . ? N2 H2 0.8800 . ? N3 C13 1.370(3) . ? N3 C16 1.379(3) . ? N4 C15 1.375(2) . ? N4 C16 1.387(2) . ? N4 C17 1.469(2) . ? C1 H1A 0.9800 . ? C1 H1B 0.9800 . ? C1 H1C 0.9800 . ? C2 H2A 0.9800 . ? C2 H2B 0.9800 . ? C2 H2C 0.9800 . ? C3 C4 1.377(3) . ? C3 C8 1.438(3) . ? C4 C5 1.409(3) . ? C4 H4 0.9500 . ? C5 C6 1.361(3) . ? C5 H5A 0.9500 . ? C6 C7 1.428(3) . ? C6 H6A 0.9500 . ? C7 C8 1.429(3) . ? C7 C12 1.431(3) . ? C8 C9 1.419(3) . ? C9 C10 1.362(3) . ? C9 H9 0.9500 . ? C10 C11 1.405(3) . ? C10 H10 0.9500 . ? C11 C12 1.379(3) . ? C11 H11 0.9500 . ? C13 C14 1.431(3) . ? C14 C15 1.347(3) . ? C14 H14 0.9500 . ? C15 H15 0.9500 . ? C17 C18 1.523(3) . ? C17 H17 1.0000 . ? C18 C19 1.532(3) . ? C18 H18A 0.9900 . ? C18 H18B 0.9900 . ? C19 C20 1.544(3) . ? C19 H19 1.0000 . ? C20 C21 1.509(3) . ? C20 H20 1.0000 . ? C21 H21A 0.9900 . ? C21 H21B 0.9900 . ? loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle _geom_angle_site_symmetry_1 _geom_angle_site_symmetry_3 _geom_angle_publ_flag O2 S1 O1 116.63(9) . . ? O2 S1 N2 112.54(9) . . ? O1 S1 N2 105.24(9) . . ? O2 S1 C12 108.37(9) . . ? O1 S1 C12 106.78(9) . . ? N2 S1 C12 106.72(9) . . ? C17 O4 C20 109.71(15) . . ? C19 O5 H5 109.5 . . ? C21 O6 H6 109.5 . . ? C3 N1 C1 115.65(17) . . ? C3 N1 C2 114.85(17) . . ? C1 N1 C2 109.70(18) . . ? C13 N2 S1 120.13(15) . . ? C13 N2 H2 119.9 . . ? S1 N2 H2 119.9 . . ? C13 N3 C16 126.89(17) . . ? C15 N4 C16 120.34(17) . . ? C15 N4 C17 119.06(16) . . ? C16 N4 C17 120.53(16) . . ? N1 C1 H1A 109.5 . . ? N1 C1 H1B 109.5 . . ? H1A C1 H1B 109.5 . . ? N1 C1 H1C 109.5 . . ? H1A C1 H1C 109.5 . . ? H1B C1 H1C 109.5 . . ? N1 C2 H2A 109.5 . . ? N1 C2 H2B 109.5 . . ? H2A C2 H2B 109.5 . . ? N1 C2 H2C 109.5 . . ? H2A C2 H2C 109.5 . . ? H2B C2 H2C 109.5 . . ? C4 C3 N1 122.63(18) . . ? C4 C3 C8 119.29(18) . . ? N1 C3 C8 118.05(17) . . ? C3 C4 C5 120.45(18) . . ? C3 C4 H4 119.8 . . ? C5 C4 H4 119.8 . . ? C6 C5 C4 121.79(18) . . ? C6 C5 H5A 119.1 . . ? C4 C5 H5A 119.1 . . ? C5 C6 C7 119.94(18) . . ? C5 C6 H6A 120.0 . . ? C7 C6 H6A 120.0 . . ? C6 C7 C8 118.81(17) . . ? C6 C7 C12 123.69(17) . . ? C8 C7 C12 117.49(16) . . ? C9 C8 C7 118.91(18) . . ? C9 C8 C3 121.59(18) . . ? C7 C8 C3 119.43(17) . . ? C10 C9 C8 121.81(19) . . ? C10 C9 H9 119.1 . . ? C8 C9 H9 119.1 . . ? C9 C10 C11 119.97(18) . . ? C9 C10 H10 120.0 . . ? C11 C10 H10 120.0 . . ? C12 C11 C10 120.17(18) . . ? C12 C11 H11 119.9 . . ? C10 C11 H11 119.9 . . ? C11 C12 C7 121.38(18) . . ? C11 C12 S1 116.57(15) . . ? C7 C12 S1 121.84(14) . . ? N2 C13 N3 115.18(18) . . ? N2 C13 C14 129.44(19) . . ? N3 C13 C14 115.38(17) . . ? C15 C14 C13 118.80(18) . . ? C15 C14 H14 120.6 . . ? C13 C14 H14 120.6 . . ? C14 C15 N4 123.41(19) . . ? C14 C15 H15 118.3 . . ? N4 C15 H15 118.3 . . ? O3 C16 N3 121.14(18) . . ? O3 C16 N4 123.71(18) . . ? N3 C16 N4 115.15(17) . . ? O4 C17 N4 107.76(15) . . ? O4 C17 C18 107.39(16) . . ? N4 C17 C18 115.56(17) . . ? O4 C17 H17 108.6 . . ? N4 C17 H17 108.6 . . ? C18 C17 H17 108.6 . . ? C17 C18 C19 104.84(17) . . ? C17 C18 H18A 110.8 . . ? C19 C18 H18A 110.8 . . ? C17 C18 H18B 110.8 . . ? C19 C18 H18B 110.8 . . ? H18A C18 H18B 108.9 . . ? O5 C19 C18 110.31(17) . . ? O5 C19 C20 111.97(17) . . ? C18 C19 C20 104.54(17) . . ? O5 C19 H19 110.0 . . ? C18 C19 H19 110.0 . . ? C20 C19 H19 110.0 . . ? O4 C20 C21 106.76(17) . . ? O4 C20 C19 107.71(16) . . ? C21 C20 C19 114.85(18) . . ? O4 C20 H20 109.1 . . ? C21 C20 H20 109.1 . . ? C19 C20 H20 109.1 . . ? O6 C21 C20 111.11(18) . . ? O6 C21 H21A 109.4 . . ? C20 C21 H21A 109.4 . . ? O6 C21 H21B 109.4 . . ? C20 C21 H21B 109.4 . . ? H21A C21 H21B 108.0 . . ? 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_site_symmetry_A O5 H5 O6 0.84 1.86 2.681(2) 165.3 2_546 O6 H6 O3 0.84 2.09 2.869(2) 154.4 . _diffrn_measured_fraction_theta_max 0.947 _diffrn_reflns_theta_full 28.00 _diffrn_measured_fraction_theta_full 0.947 _refine_diff_density_max 0.886 _refine_diff_density_min -0.439 _refine_diff_density_rms 0.059 _database_code_depnum_ccdc_archive 'CCDC 930728'