Temperature dependent charge distribution in three-dimensional homochiral cadmium camphorates.
Zhang, Jian; Bu, Xianhui; Chemical communications (Cambridge, England)  (2008) 444–446; doi:10.1039/b715945e

data_7102851
_publ_section_title
;
 Temperature dependent charge distribution in three-dimensional
 homochiral cadmium camphorates.
;
_journal_issue                   4
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              444
_journal_page_last               446
_journal_paper_doi               10.1039/b715945e
_journal_year                    2008
_chemical_absolute_configuration rm
_chemical_formula_sum            'C20 H28 Cd2 O8'
_chemical_formula_weight         621.22
_chemical_name_systematic
;
?
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 99.332(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   7.2911(4)
_cell_length_b                   11.3103(7)
_cell_length_c                   13.0172(9)
_cell_measurement_reflns_used    1925
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      23.70
_cell_measurement_theta_min      2.40
_cell_volume                     1059.25(11)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0614
_diffrn_reflns_av_sigmaI/netI    0.1167
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            11562
_diffrn_reflns_theta_full        27.22
_diffrn_reflns_theta_max         27.22
_diffrn_reflns_theta_min         1.59
_exptl_absorpt_coefficient_mu    2.050
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.817
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.946
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             616
_exptl_crystal_size_max          .30
_exptl_crystal_size_mid          .23
_exptl_crystal_size_min          .18
_refine_diff_density_max         0.668
_refine_diff_density_min         -1.137
_refine_diff_density_rms         0.138
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.08(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     271
_refine_ls_number_reflns         4314
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.1186
_refine_ls_R_factor_gt           0.0513
_refine_ls_shift/su_max          0.020
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+1.4991P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1098
_refine_ls_wR_factor_ref         0.1408
_reflns_number_gt                2524
_reflns_number_total             4314
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b715945e.txt
_cod_data_source_block           664305
_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 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               7102851