1,5-Dibromo-2,6-dimethylnaphthalene
Jones, Peter G.; Kuś, Piotr; Acta Crystallographica Section E 61 (2005) o1235–o1236; doi:10.1107/S1600536805008652

data_2205642
_publ_section_title
;
 1,5-Dibromo-2,6-dimethylnaphthalene
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o1235
_journal_page_last               o1236
_journal_paper_doi               10.1107/S1600536805008652
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C12 H10 Br2'
_chemical_formula_moiety         'C12 H10 Br2'
_chemical_formula_sum            'C12 H10 Br2'
_chemical_formula_weight         314.02
_chemical_name_systematic
;
1,5-Dibromo-2,6-dimethylnaphthalene
;
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 95.497(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.543(3)
_cell_length_b                   4.0082(8)
_cell_length_c                   12.813(2)
_cell_measurement_reflns_used    4270
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      30.65
_cell_measurement_theta_min      2.67
_cell_volume                     1050.2(3)
_computing_cell_refinement       'SAINT (Bruker, 1998)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'XP (Siemens, 1994)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      133(2)
_diffrn_detector_area_resol_mean 8.192
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0284
_diffrn_reflns_av_sigmaI/netI    0.0226
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            8223
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.50
_diffrn_reflns_theta_min         1.99
_exptl_absorpt_coefficient_mu    7.672
_exptl_absorpt_correction_T_max  0.541
_exptl_absorpt_correction_T_min  0.383
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 1998)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.986
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             608
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.476
_refine_diff_density_min         -0.542
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     65
_refine_ls_number_reflns         1597
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0352
_refine_ls_R_factor_gt           0.0237
_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/[\s^2^(Fo^2^)+(0.0241P)^2^+1.2229P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0503
_refine_ls_wR_factor_ref         0.0537
_reflns_number_gt                1327
_reflns_number_total             1597
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bt6633.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2205642
_cod_database_fobs_code          2205642