#------------------------------------------------------------------------------
#$Date: 2016-03-24 14:08:23 +0200 (Thu, 24 Mar 2016) $
#$Revision: 179653 $
#$URL: svn://www.crystallography.net/cod/cif/4/51/06/4510614.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_4510614
loop_
_publ_author_name
'Jones, Andrew O. F.'
'Blagden, Nicholas'
'McIntyre, Garry J.'
'Parkin, Andrew'
'Seaton, Colin C.'
'Thomas, Lynne H.'
'Wilson, Chick C.'
_publ_section_title
;
 Tuning Proton Disorder in 3,5-Dinitrobenzoic Acid Dimers: the Effect of
 Local Environment
;
_journal_issue                   2
_journal_name_full               'Crystal Growth & Design'
_journal_page_first              497
_journal_paper_doi               10.1021/cg300906j
_journal_volume                  13
_journal_year                    2013
_chemical_formula_sum            'C7 H4 N2 O6'
_chemical_formula_weight         212.00
_chemical_name_systematic
;
 3,5-dinitrobenzoic acid
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2012-05-08 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 109.750(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   20.080(5)
_cell_length_b                   8.700(5)
_cell_length_c                   9.600(5)
_cell_measurement_reflns_used    250
_cell_measurement_temperature    20
_cell_volume                     1578.4(13)
_computing_cell_refinement       'lauegen (CCP4)'
_computing_data_collection       'VIVALDI (MAATEL)'
_computing_data_reduction        'argonne_boxes, laue4 (Piltz, 2011)'
_computing_molecular_graphics    'Mercury (McRae, 2006)'
_computing_publication_material  'WINGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      20
_diffrn_detector_area_resol_mean 0.7
_diffrn_measurement_device_type  VIVALDI
_diffrn_measurement_method       'Laue patterns at 10 orientations'
_diffrn_radiation_monochromator  none
_diffrn_radiation_source         'ILL reactor source, thermal guide'
_diffrn_radiation_type           neutron
_diffrn_radiation_wavelength     0.80-5.20
_diffrn_reflns_av_R_equivalents  0.0934
_diffrn_reflns_av_sigmaI/netI    0.0692
_diffrn_reflns_limit_h_max       37
_diffrn_reflns_limit_h_min       -37
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            16009
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.000
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'pale yellow'
_exptl_crystal_density_diffrn    1.784
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             68
_exptl_crystal_size_max          2.0
_exptl_crystal_size_mid          1.8
_exptl_crystal_size_min          0.8
_refine_diff_density_max         0.145
_refine_diff_density_min         -0.137
_refine_diff_density_rms         0.030
_refine_ls_extinction_coef       2.77(11)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         3248
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0705
_refine_ls_R_factor_gt           0.0448
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[σ²(Fo²)+(0.1000P)²+0.0000P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1266
_refine_ls_wR_factor_ref         0.1387
_reflns_number_gt                2631
_reflns_number_total             3248
_reflns_threshold_expression     >2σ(I)
_cod_data_source_file            35-dnba_C2c_20K_neutron_CIF.cif
_cod_data_source_block           dnba_20
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4510614
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x, y, -z+1/2'
'x+1/2, y+1/2, z'
'-x+1/2, y+1/2, -z+1/2'
'-x, -y, -z'
'x, -y, z-1/2'
'-x+1/2, -y+1/2, -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
H1 H 0.05352(16) 0.0614(2) 0.1922(3) 0.0196(5) Uani 1 1 d
H3 H 0.19727(16) 0.3079(2) 0.5582(3) 0.0196(5) Uani 1 1 d
H2 H 0.10669(16) 0.5300(2) 0.1381(3) 0.0205(5) Uani 1 1 d
H4 H 0.22239(16) 0.7725(2) 0.3702(3) 0.0201(5) Uani 1 1 d
O6 O 0.17283(7) 0.04844(10) 0.60503(13) 0.0089(3) Uani 1 1 d
O1 O 0.22981(7) 0.58343(10) 0.54986(12) 0.0076(3) Uani 1 1 d
O4 O 0.03357(7) 0.39627(11) -0.08133(13) 0.0092(3) Uani 1 1 d
O2 O 0.19432(7) 0.67992(10) 0.32043(12) 0.0082(3) Uani 1 1 d
N1 N 0.02638(4) 0.29694(6) 0.00126(8) 0.00660(17) Uani 1 1 d
O3 O -0.01970(8) 0.19911(11) -0.03331(14) 0.0097(3) Uani 1 1 d
O5 O 0.10573(8) -0.07914(10) 0.41743(13) 0.0100(3) Uani 1 1 d
N2 N 0.13589(4) 0.03772(6) 0.47533(7) 0.00631(17) Uani 1 1 d
C4 C 0.08189(6) 0.16569(8) 0.23729(10) 0.0063(2) Uani 1 1 d
C7 C 0.19726(6) 0.57356(8) 0.41734(11) 0.0059(2) Uani 1 1 d
C1 C 0.15726(6) 0.43275(8) 0.35341(10) 0.0055(2) Uani 1 1 d
C3 C 0.12734(6) 0.17369(8) 0.38213(10) 0.0058(2) Uani 1 1 d
C5 C 0.07539(6) 0.29698(8) 0.15344(10) 0.0058(2) Uani 1 1 d
C6 C 0.11287(6) 0.42990(8) 0.20690(11) 0.0062(2) Uani 1 1 d
C2 C 0.16425(6) 0.30489(8) 0.44320(10) 0.0058(2) Uani 1 1 d
loop_
_atom_type_symbol
_atom_type_description
_atom_type_scat_dispersion_real
_atom_type_scat_dispersion_imag
_atom_type_scat_source
C C 0.0000 0.0000 '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 0.0000 0.0000 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4'
O O 0.0000 0.0000 '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
O4 N1 O3 124.52(12)
O4 N1 C5 117.69(9)
O3 N1 C5 117.78(8)
O5 N2 O6 124.58(8)
O5 N2 C3 117.40(9)
O6 N2 C3 118.02(8)
C5 C4 C3 116.46(8)
O1 C7 O2 125.08(10)
O1 C7 C1 120.98(8)
O2 C7 C1 113.93(10)
C2 C1 C6 120.77(8)
C2 C1 C7 118.70(10)
C6 C1 C7 120.52(7)
C2 C3 C4 123.10(7)
C2 C3 N2 118.40(10)
C4 C3 N2 118.49(8)
C4 C5 C6 123.03(10)
C4 C5 N1 118.89(8)
C6 C5 N1 118.08(7)
C5 C6 C1 118.33(7)
C3 C2 C1 118.25(10)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
O6 N2 1.2186(16)
O1 C7 1.2211(17)
O4 N1 1.2139(11)
O2 C7 1.2993(13)
N1 O3 1.2178(15)
N1 C5 1.4598(15)
O5 N2 1.2173(13)
N2 C3 1.4579(11)
C4 C5 1.3779(12)
C4 C3 1.3833(16)
C7 C1 1.4796(14)
C1 C2 1.3850(12)
C1 C6 1.3879(17)
C3 C2 1.3792(14)
C5 C6 1.3805(13)
