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_2102967
_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           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_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            4
_cell_length_a                   3.9929(8)
_cell_length_b                   7.9351(16)
_cell_length_c                   9.6808(19)
_cell_measurement_reflns_used    1548
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      29.63
_cell_measurement_theta_min      5.14
_cell_volume                     306.73(11)
_computing_cell_refinement       'CrysAlisRED (Oxford Diffraction, 2004)'
_computing_data_collection       'CrysAlisCCD (Oxford Diffraction, 2004)'
_computing_data_reduction
'CrysAlisRED (Oxford Diffraction, 2004); REDSHABS (Katrusiak, A.  2003)'
_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, 1997)'
_diffrn_ambient_temperature      295(2)
_diffrn_measured_fraction_theta_full 0.674
_diffrn_measured_fraction_theta_max 0.674
_diffrn_measurement_device_type  'KM-4 CCD'
_diffrn_measurement_method       '\f- and \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  0.0571
_diffrn_reflns_av_sigmaI/netI    0.0236
_diffrn_reflns_limit_h_max       3
_diffrn_reflns_limit_h_min       -3
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            2283
_diffrn_reflns_theta_full        29.63
_diffrn_reflns_theta_max         29.63
_diffrn_reflns_theta_min         5.14
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    13.942
_exptl_absorpt_correction_T_max  0.31
_exptl_absorpt_correction_T_min  0.13
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
 Correction for absorption of the diamond-anvil cell and the sample
 were made using program REDSHABS (Katrusiak, A. (2003) REDSHABS. Adam
 Mickiewicz University Pozna\'n; Katrusiak, A. (2004) Z. Kristallogr.
 219, 461-467).
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.802
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cylinder
_exptl_crystal_F_000             240
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.345
_refine_diff_density_min         -0.337
_refine_ls_extinction_coef       0.005(2)
_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   1.199
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     25
_refine_ls_number_reflns         295
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.195
_refine_ls_R_factor_all          0.0342
_refine_ls_R_factor_gt           0.0288
_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^)+(0.0310P)^2^+0.0922P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0622
_refine_ls_wR_factor_ref         0.0646
_reflns_number_gt                271
_reflns_number_total             295
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            av5094.cif
_cod_data_source_block           cbm_1.72GPa
_cod_database_code               2102967
_cod_database_fobs_code          2102967