Isobaric and isochoric freezing of CH~2~BrCl and isostructural relations between CH~2~Cl~2~, CH~2~Br~2~ and CH~2~BrCl
Podsiadło, Marcin; Katrusiak, Andrzej; Acta Crystallographica Section B 63 (2007) 903–911; doi:10.1107/S0108768107044618

data_2102965
_publ_section_title
;
 Isobaric and isochoric freezing of CH~2~BrCl and isostructural
 relations between CH~2~Cl~2~, CH~2~Br~2~ and CH~2~BrCl
;
_journal_coeditor_code           AV5094
_journal_issue                   6
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              903
_journal_page_last               911
_journal_paper_doi               10.1107/S0108768107044618
_journal_volume                  63
_journal_year                    2007
_chemical_formula_moiety         'C1 H2 Br1 Cl1'
_chemical_formula_sum            'C H2 Br Cl'
_chemical_formula_weight         129.39
_chemical_melting_point          185
_chemical_name_common            bromochloromethane
_chemical_name_systematic
;
bromochloromethane
;
_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                 112.04(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   11.874(2)
_cell_length_b                   4.4224(9)
_cell_length_c                   14.582(3)
_cell_measurement_reflns_used    1948
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.66
_cell_measurement_theta_min      3.01
_cell_volume                     709.8(3)
_computing_cell_refinement       'CrysAlisRED (Oxford Diffraction, 2004)'
_computing_data_collection       'CrysAlisCCD (Oxford Diffraction, 2004)'
_computing_data_reduction        'CrysAlisRED (Oxford Diffraction, 2004)'
_computing_molecular_graphics    'X-seed 2.0'
_computing_publication_material  'SHELXL--97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.917
_diffrn_measured_fraction_theta_max 0.917
_diffrn_measurement_device_type  'KM-4 CCD'
_diffrn_measurement_method       \w-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  0.0777
_diffrn_reflns_av_sigmaI/netI    0.0552
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            3122
_diffrn_reflns_theta_full        29.66
_diffrn_reflns_theta_max         29.66
_diffrn_reflns_theta_min         3.01
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    12.050
_exptl_absorpt_correction_T_max  0.32
_exptl_absorpt_correction_T_min  0.22
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 Correction for absorption was made using XEMP (SHELXTL,
 Sheldrick (1990)).
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.422
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             480
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.506
_refine_diff_density_min         -0.719
_refine_ls_extinction_coef       0.0023(9)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.123
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     36
_refine_ls_number_reflns         923
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.120
_refine_ls_R_factor_all          0.0599
_refine_ls_R_factor_gt           0.0505
_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^)+(0.0553P)^2^+4.5134P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1218
_refine_ls_wR_factor_ref         0.1280
_reflns_number_gt                784
_reflns_number_total             923
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            av5094.cif
_cod_data_source_block           cbm_100K
_cod_original_cell_volume        709.8(2)
_cod_original_sg_symbol_H-M      'C 2 / c'
_cod_database_code               2102965
_cod_database_fobs_code          2102965