#------------------------------------------------------------------------------
#$Date: 2016-02-14 05:40:26 +0100 (dom 14 de feb de 2016) $
#$Revision: 176432 $
#$URL: svn://www.crystallography.net/cod/cif/7/21/20/7212093.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_7212093
loop_
_publ_author_name
'Hursthouse, Michael B.'
'Montis, Riccardo'
'Tizzard, Graham J.'
_publ_section_title
;
 Intriguing relationships and associations in the crystal structures of a
 family of substituted aspirin molecules
;
_journal_issue                   3
_journal_name_full               CrystEngComm
_journal_page_first              953
_journal_paper_doi               10.1039/b919538f
_journal_volume                  12
_journal_year                    2010
_chemical_formula_moiety         'C9 H7 N O6'
_chemical_formula_sum            'C9 H7 N O6'
_chemical_formula_weight         225.16
_chemical_melting_point          162
_chemical_name_common            '2-acetyloxy-5-nitrobenzoic acid'
_chemical_name_systematic        '2-acetyloxy-5-nitrobenzoic acid'
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 99.6860(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.9166(3)
_cell_length_b                   5.04440(10)
_cell_length_c                   18.6808(5)
_cell_measurement_reflns_used    4600
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     921.15(4)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type
'Bruker-Nonius 95mm CCD camera on κ-goniostat'
_diffrn_measurement_method       'φ & ω scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0287
_diffrn_reflns_av_sigmaI/netI    0.0276
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            8929
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.61
_exptl_absorpt_coefficient_mu    0.140
_exptl_absorpt_correction_T_max  0.9779
_exptl_absorpt_correction_T_min  0.9333
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2.10 (Sheldrick, G.M., 2003)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.624
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rod
_exptl_crystal_F_000             464
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.293
_refine_diff_density_min         -0.336
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     147
_refine_ls_number_reflns         2102
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.0436
_refine_ls_R_factor_gt           0.0360
_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/[σ²(Fo²)+(0.0496P)²+0.3793P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0936
_refine_ls_wR_factor_ref         0.0999
_reflns_number_gt                1804
_reflns_number_total             2102
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b919538f.txt
_cod_data_source_block           shelxl7
_cod_original_sg_symbol_Hall     '-P 2yn '
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7212093
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_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
O6 O 0.36435(10) 0.7492(2) 0.08354(5) 0.0214(2) Uani 1 1 d .
O5 O 0.28836(11) 1.0388(2) 0.15267(5) 0.0289(3) Uani 1 1 d .
N1 N 0.35863(11) 0.8454(2) 0.14331(6) 0.0165(2) Uani 1 1 d .
C1 C 0.51004(12) 0.7049(2) 0.33681(6) 0.0138(3) Uani 1 1 d .
C2 C 0.59018(12) 0.4836(2) 0.32678(6) 0.0143(3) Uani 1 1 d .
C3 C 0.59775(13) 0.3878(3) 0.25788(7) 0.0171(3) Uani 1 1 d .
H3 H 0.6548 0.2405 0.2524 0.020 Uiso 1 1 calc R
C4 C 0.52233(13) 0.5064(3) 0.19712(7) 0.0164(3) Uani 1 1 d .
H4 H 0.5265 0.4421 0.1498 0.020 Uiso 1 1 calc R
C5 C 0.44076(12) 0.7210(3) 0.20732(6) 0.0142(3) Uani 1 1 d .
C6 C 0.43315(12) 0.8228(3) 0.27534(6) 0.0146(3) Uani 1 1 d .
H6 H 0.3764 0.9711 0.2802 0.017 Uiso 1 1 calc R
C7 C 0.50266(12) 0.8242(3) 0.40944(6) 0.0144(3) Uani 1 1 d .
C8 C 0.78697(12) 0.4084(3) 0.41542(7) 0.0153(3) Uani 1 1 d .
C9 C 0.83853(14) 0.2353(3) 0.47864(7) 0.0185(3) Uani 1 1 d .
H9A H 0.9341 0.2795 0.4975 0.028 Uiso 1 1 calc R
H9B H 0.8322 0.0493 0.4633 0.028 Uiso 1 1 calc R
H9C H 0.7832 0.2630 0.5168 0.028 Uiso 1 1 calc R
O1 O 0.41227(9) 1.00710(19) 0.40919(5) 0.0206(2) Uani 1 1 d .
H1 H 0.4212 1.0773 0.4505 0.031 Uiso 1 1 calc R
O2 O 0.58303(10) 0.7491(2) 0.46457(5) 0.0228(2) Uani 1 1 d .
O3 O 0.65588(9) 0.33661(18) 0.38549(5) 0.0162(2) Uani 1 1 d .
O4 O 0.84551(10) 0.5850(2) 0.39047(5) 0.0247(2) Uani 1 1 d .
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
O6 0.0257(5) 0.0256(5) 0.0125(4) -0.0032(4) 0.0019(4) 0.0001(4)
O5 0.0322(6) 0.0326(6) 0.0213(5) -0.0002(4) 0.0031(4) 0.0186(5)
N1 0.0151(5) 0.0195(5) 0.0148(5) -0.0016(4) 0.0020(4) 0.0011(4)
C1 0.0132(6) 0.0152(6) 0.0137(6) -0.0020(4) 0.0039(4) -0.0036(5)
C2 0.0137(6) 0.0134(6) 0.0155(6) 0.0013(4) 0.0014(4) -0.0033(5)
C3 0.0179(6) 0.0141(6) 0.0196(6) -0.0016(5) 0.0044(5) 0.0022(5)
C4 0.0185(6) 0.0163(6) 0.0149(6) -0.0032(5) 0.0044(5) -0.0006(5)
C5 0.0130(6) 0.0162(6) 0.0131(6) -0.0005(4) 0.0016(4) -0.0013(5)
C6 0.0138(6) 0.0147(6) 0.0158(6) -0.0017(5) 0.0040(5) -0.0002(5)
C7 0.0138(6) 0.0157(6) 0.0140(6) -0.0005(5) 0.0037(4) -0.0035(5)
C8 0.0151(6) 0.0154(6) 0.0157(6) -0.0011(5) 0.0036(5) -0.0005(5)
C9 0.0198(6) 0.0182(6) 0.0170(6) 0.0029(5) 0.0013(5) -0.0024(5)
O1 0.0210(5) 0.0231(5) 0.0188(5) -0.0074(4) 0.0062(4) 0.0008(4)
O2 0.0251(5) 0.0298(6) 0.0127(4) -0.0015(4) 0.0006(4) 0.0008(4)
O3 0.0152(5) 0.0149(4) 0.0176(4) 0.0034(3) 0.0002(3) -0.0023(3)
O4 0.0200(5) 0.0257(5) 0.0275(5) 0.0109(4) 0.0015(4) -0.0070(4)
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'
loop_
_geom_angle_atom_site_label_1
_geom_angle_atom_site_label_2
_geom_angle_atom_site_label_3
_geom_angle
O6 N1 O5 123.88(11)
O6 N1 C5 117.86(10)
O5 N1 C5 118.26(10)
C6 C1 C2 118.15(11)
C6 C1 C7 118.01(11)
C2 C1 C7 123.83(11)
C3 C2 O3 116.99(11)
C3 C2 C1 121.44(11)
O3 C2 C1 121.34(11)
C4 C3 C2 120.21(12)
C4 C3 H3 119.9
C2 C3 H3 119.9
C5 C4 C3 118.19(11)
C5 C4 H4 120.9
C3 C4 H4 120.9
C4 C5 C6 122.69(12)
C4 C5 N1 118.62(11)
C6 C5 N1 118.69(11)
C5 C6 C1 119.28(12)
C5 C6 H6 120.4
C1 C6 H6 120.4
O2 C7 O1 124.61(11)
O2 C7 C1 120.19(11)
O1 C7 C1 115.18(11)
O4 C8 O3 121.60(11)
O4 C8 C9 128.31(12)
O3 C8 C9 110.08(10)
C8 C9 H9A 109.5
C8 C9 H9B 109.5
H9A C9 H9B 109.5
C8 C9 H9C 109.5
H9A C9 H9C 109.5
H9B C9 H9C 109.5
C7 O1 H1 109.5
C8 O3 C2 117.75(10)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
O6 N1 1.2276(14)
O5 N1 1.2285(15)
N1 C5 1.4693(16)
C1 C6 1.3997(18)
C1 C2 1.4009(18)
C1 C7 1.4973(16)
C2 C3 1.3886(17)
C2 O3 1.3917(15)
C3 C4 1.3855(18)
C3 H3 0.9500
C4 C5 1.3835(18)
C4 H4 0.9500
C5 C6 1.3844(17)
C6 H6 0.9500
C7 O2 1.2504(15)
C7 O1 1.2857(16)
C8 O4 1.1997(16)
C8 O3 1.3745(15)
C8 C9 1.4884(17)
C9 H9A 0.9800
C9 H9B 0.9800
C9 H9C 0.9800
O1 H1 0.8400
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
O1 H1 O2 0.84 1.82 2.6532(13) 171.8 3_676
