Four independent structures of a pentacoordinate silicon species at different points on the Berry pseudorotation pathway
Bassindale, Alan R.; Sohail, M.; Taylor, Peter G.; Korlyukov, Alexander A.; Arkhipov, Dmitry E.; Chemical Communications 46 (2010) 3274–3276; doi:10.1039/c000803f

data_7105517
_publ_section_title
;
 Four independent structures of a pentacoordinate silicon species at
 different points on the Berry pseudorotation pathway
;
_journal_issue                   19
_journal_name_full               'Chemical Communications'
_journal_page_first              3274
_journal_page_last               3276
_journal_paper_doi               10.1039/c000803f
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety         'C13 H13 Cl2 N2 O2 Si, C5 H4 Cl N O, H2 O, Cl '
_chemical_formula_sum            'C18 H19 Cl4 N3 O4 Si'
_chemical_formula_weight         511.25
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 96.267(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.6414(8)
_cell_length_b                   21.915(2)
_cell_length_c                   12.8697(14)
_cell_measurement_reflns_used    6205
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      32.95
_cell_measurement_theta_min      2.45
_cell_volume                     2142.3(4)
_computing_cell_refinement       'APEX2 (Bruker, 2005)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'APEX2 (Bruker, 2005)'
_computing_molecular_graphics    'SHELXTL ver. 5.1 (Sheldrick, 1998)'
_computing_publication_material  'SHELXTL ver. 5.1 (Sheldrick, 1998)'
_computing_structure_refinement  'SHELXTL ver. 5.1 (Sheldrick, 1998)'
_computing_structure_solution    'SHELXTL ver. 5.1 (Sheldrick, 1998)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker APEX II 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  0.0325
_diffrn_reflns_av_sigmaI/netI    0.0274
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       30
_diffrn_reflns_limit_k_min       -30
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            26805
_diffrn_reflns_theta_full        30.03
_diffrn_reflns_theta_max         30.03
_diffrn_reflns_theta_min         1.86
_exptl_absorpt_coefficient_mu    0.640
_exptl_absorpt_correction_T_max  0.9271
_exptl_absorpt_correction_T_min  0.8826
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'APEX2 (Bruker, 2005)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.585
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1048
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.615
_refine_diff_density_min         -0.423
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     272
_refine_ls_number_reflns         6212
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.014
_refine_ls_R_factor_all          0.0437
_refine_ls_R_factor_gt           0.0374
_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^)+(0.0464P)^2^+1.8647P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0923
_refine_ls_wR_factor_ref         0.0958
_reflns_number_gt                5481
_reflns_number_total             6212
_reflns_threshold_expression     I>2u(I)
_cod_data_source_file            c000803f.txt
_cod_data_source_block           sm108bis
_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      'P 21/n'
_cod_database_code               7105517