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_7207484
_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         'C4 H6 O, 0.5 x C1 H2 Cl2'
_chemical_formula_sum            'C9 H14 Cl2 O2'
_chemical_formula_weight         225.10
_chemical_melting_point          185.5(5)
_chemical_name_common            'dichloromethane cyclobutanone co-crystal'
_chemical_name_systematic
;
dichloromethane cyclobutanone clathrate (1:2)
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           62
_space_group_name_Hall           '-P 2ac 2n'
_space_group_name_H-M_alt        'P n m a'
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             2010-10-08
_audit_creation_method
;
Olex2 1.1-beta
(compiled 2010.10.06 svn.r1460, GUI svn.r3288)
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.3053(12)
_cell_length_b                   20.118(2)
_cell_length_c                   5.5119(4)
_cell_measurement_reflns_used    1086
_cell_measurement_temperature    180.0(2)
_cell_measurement_theta_max      28.94
_cell_measurement_theta_min      3.96
_cell_volume                     1142.74(19)
_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
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180.0(2)
_diffrn_measured_fraction_theta_full 0.792
_diffrn_measured_fraction_theta_max 0.792
_diffrn_measurement_device_type  'Bruker SMART CCD 6000 area detector'
_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  0.0677
_diffrn_reflns_av_unetI/netI     0.0426
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -4
_diffrn_reflns_number            9197
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         2.02
_diffrn_source_current           30.0
_diffrn_source_power             1.5
_diffrn_source_target            Mo
_diffrn_source_voltage           50.0
_exptl_absorpt_coefficient_mu    0.537
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.308
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       cylinder
_exptl_crystal_F_000             472
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.167
_refine_diff_density_min         -0.219
_refine_diff_density_rms         0.036
_refine_ls_extinction_coef       0.126(6)
_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   1.072
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     93
_refine_ls_number_reflns         1360
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.072
_refine_ls_R_factor_all          0.0555
_refine_ls_R_factor_gt           0.0325
_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^)+(0.0300P)^2^+0.1000P]
where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0730
_refine_ls_wR_factor_ref         0.0792
_reflns_number_gt                923
_reflns_number_total             1360
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce06526f.txt
_cod_data_source_block           2_dcmcbuon
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_melting_point' value '185-186' was changed to '185.5(5)' -
the average value was taken and precision was
estimated.

'_diffrn_source_target' value 'MO' changed to 'Mo'
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        1142.7(2)
_cod_database_code               7207484