Low melting molecular complexes. The structures of molecular complexes of tri- and di-chloromethanes with small ketones and 1,4-dioxane
Yufit, D. S.; Howard, J. A. K.; CrystEngComm 14 (2012) 2003–; doi:10.1039/c2ce06526f

data_7207485
_publ_section_title
;
 Low melting molecular complexes. The structures of molecular complexes of
 tri- and di-chloromethanes with small ketones and 1,4-dioxane
;
_journal_issue                   6
_journal_name_full               CrystEngComm
_journal_page_first              2003
_journal_paper_doi               10.1039/c2ce06526f
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety         'C6 H10 O, C H2 Cl2'
_chemical_formula_sum            'C7 H12 Cl2 O'
_chemical_formula_weight         183.07
_chemical_melting_point          195.5(5)
_chemical_name_common            'dichloromethane cyclohexanone co-crystal'
_chemical_name_systematic
;
dichloromethane cyclohexanone clathrate (1:1)
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                103.760(10)
_cell_angle_beta                 103.150(10)
_cell_angle_gamma                98.400(10)
_cell_formula_units_Z            2
_cell_length_a                   6.2893(6)
_cell_length_b                   7.8029(9)
_cell_length_c                   10.3006(13)
_cell_measurement_reflns_used    827
_cell_measurement_temperature    180.0(2)
_cell_measurement_theta_max      28.93
_cell_measurement_theta_min      2.75
_cell_volume                     467.28(10)
_computing_cell_refinement       'SAINT v6.45A (Bruker, 2003)'
_computing_data_collection       'SMART v5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT v6.45A (Bruker, 2003)'
_computing_molecular_graphics
;
OLEX2: a complete structure solution, refinement and analysis program.
Dolomanov et al., J. Appl. Cryst. (2009). 42, 339-341
;
_computing_publication_material
;
OLEX2: a complete structure solution, refinement and analysis program.
Dolomanov et al., J. Appl. Cryst. (2009). 42, 339-341
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)/Bruker'
_diffrn_ambient_temperature      180.0(2)
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 8.0
_diffrn_detector_type            'Bruker SMART CCD 6000 area detector'
_diffrn_measured_fraction_theta_full 0.747
_diffrn_measured_fraction_theta_max 0.747
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker SMART CCD 6000 area detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_xray_symbol    K-L~3~
_diffrn_reflns_av_R_equivalents  0.0150
_diffrn_reflns_av_sigmaI/netI    0.0214
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            4033
_diffrn_reflns_theta_full        29.99
_diffrn_reflns_theta_max         29.99
_diffrn_reflns_theta_min         2.12
_diffrn_source                   'sealed X-ray tube'
_diffrn_source_current           30.0
_diffrn_source_power             1.35
_diffrn_source_target            Mo
_diffrn_source_voltage           45.0
_exptl_absorpt_coefficient_mu    0.632
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'dull light colourless'
_exptl_crystal_colour_lustre     dull
_exptl_crystal_colour_modifier   light
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.301
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cylinder
_exptl_crystal_F_000             192
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.3
_refine_diff_density_max         0.319
_refine_diff_density_min         -0.222
_refine_diff_density_rms         0.036
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     139
_refine_ls_number_reflns         2029
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0453
_refine_ls_R_factor_gt           0.0339
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
calc w=1/[\s^2^(Fo^2^)+(0.0500P)^2^+0.0500P] where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0912
_refine_ls_wR_factor_ref         0.0977
_reflns_number_gt                1519
_reflns_number_total             2029
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce06526f.txt
_cod_data_source_block           3_DCH
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '195 - 196' was changed to '195.5(5)'
- the average value was taken and precision was
estimated.

'_symmetry_cell_setting' value 'Triclinic' changed to
'triclinic' 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_cell_volume        467.28(9)
_cod_database_code               7207485