#------------------------------------------------------------------------------
#$Date: 2016-02-20 02:53:41 +0200 (Sat, 20 Feb 2016) $
#$Revision: 176768 $
#$URL: svn://www.crystallography.net/cod/cif/2/10/58/2105863.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_2105863
loop_
_publ_author_name
'Dziubek, Kamil F.'
'Katrusiak, Andrzej'
_publ_section_title
;
 Structure--melting relations in isomeric dibromobenzenes
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              492
_journal_page_last               497
_journal_paper_doi               10.1107/S2052520614011445
_journal_volume                  70
_journal_year                    2014
_chemical_formula_moiety         'C6 H4 Br2'
_chemical_formula_sum            'C6 H4 Br2'
_chemical_formula_weight         235.89
_chemical_melting_point          278
_chemical_name_common            o-dibromobenzene
_chemical_name_systematic
;
1,2-dibromobenzene
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   7.8346(19)
_cell_length_b                   15.270(4)
_cell_length_c                   11.684(3)
_cell_measurement_temperature    250(2)
_cell_volume                     1397.8(6)
_computing_cell_refinement       'CrysAlisPro (Agilent Technologies, 2014)'
_computing_data_collection       'CrysAlisPro (Agilent Technologies, 2014)'
_computing_data_reduction
'CrysAlisPro (Agilent Technologies, 2014); REDSHADE (Katrusiak, A. 2003)'
_computing_molecular_graphics    'DIAMOND (Crystal Impact, 1999)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      250(2)
_diffrn_measured_fraction_theta_full 0.945
_diffrn_measured_fraction_theta_max 0.945
_diffrn_measurement_device_type  'KM-4 CCD'
_diffrn_measurement_method       ω-scans
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0847
_diffrn_reflns_av_sigmaI/netI    0.0633
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       7
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            8812
_diffrn_reflns_theta_full        29.35
_diffrn_reflns_theta_max         29.35
_diffrn_reflns_theta_min         3.19
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    11.487
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.10554
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro (Agilent Technologies, 2014).
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.242
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             880
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.527
_refine_diff_density_min         -0.441
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.992
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     43
_refine_ls_number_reflns         1815
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.992
_refine_ls_R_factor_all          0.1311
_refine_ls_R_factor_gt           0.0548
_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)+(0.0450P)²+0.0000P] where P=(Fo²+2Fc²)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1165
_refine_ls_wR_factor_ref         0.1460
_reflns_number_gt                804
_reflns_number_total             1815
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            zb5043sup1.cif
_cod_data_source_block           o-dibromobenzene_250K
_cod_database_code               2105863
loop_
_symmetry_equiv_pos_as_xyz
'x, y, z'
'-x+1/2, -y, z+1/2'
'-x, y+1/2, -z+1/2'
'x+1/2, -y+1/2, -z'
'-x, -y, -z'
'x-1/2, y, -z-1/2'
'x, -y-1/2, z-1/2'
'-x-1/2, y-1/2, z'
loop_
_atom_site_type_symbol
_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_symmetry_multiplicity
Br Br1 0.21941(13) 0.43189(6) 0.48039(8) 0.0859(4) Uani d . 1 1
Br Br2 0.42600(12) 0.42951(7) 0.73268(8) 0.0940(4) Uani d . 1 1
C C1 0.2566(9) 0.3275(4) 0.5614(6) 0.0571(17) Uiso d . 1 1
C C2 0.3403(10) 0.3275(5) 0.6646(6) 0.0662(19) Uiso d . 1 1
C C3 0.3612(10) 0.2481(5) 0.7203(7) 0.077(2) Uiso d . 1 1
H H3 0.4164 0.2468 0.7908 0.092 Uiso calc R 1 1
C C4 0.3021(11) 0.1708(6) 0.6736(7) 0.085(3) Uiso d . 1 1
H H4 0.3215 0.1180 0.7111 0.102 Uiso calc R 1 1
C C5 0.2164(11) 0.1720(6) 0.5736(7) 0.084(3) Uiso d . 1 1
H H5 0.1731 0.1202 0.5435 0.100 Uiso calc R 1 1
C C6 0.1926(9) 0.2498(5) 0.5158(6) 0.069(2) Uiso d . 1 1
H H6 0.1339 0.2504 0.4466 0.083 Uiso calc R 1 1
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
Br1 0.1062(7) 0.0649(6) 0.0865(6) 0.0011(5) -0.0153(5) 0.0136(4)
Br2 0.0775(6) 0.1062(8) 0.0984(7) -0.0042(5) -0.0166(5) -0.0321(5)
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'
Br Br -0.2901 2.4595 '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
C2 C1 C6 120.5(7)
C2 C1 Br1 121.1(5)
C6 C1 Br1 118.3(5)
C1 C2 C3 117.9(7)
C1 C2 Br2 123.0(5)
C3 C2 Br2 119.1(6)
C4 C3 C2 121.6(8)
C5 C4 C3 119.9(9)
C4 C5 C6 120.2(9)
C5 C6 C1 119.8(7)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_distance
Br1 C1 1.876(7)
Br2 C2 1.873(7)
C1 C2 1.373(10)
C1 C6 1.394(9)
C2 C3 1.387(10)
C3 C4 1.380(10)
C4 C5 1.348(11)
C5 C6 1.380(10)
