Tautomeric polymorphism in omeprazole
Bhatt, Prashant M.; Desiraju, Gautam R.; Chemical Communications (Cambridge, United Kingdom)  (2007) 2057–2059; doi:10.1039/b700506g

data_7101902
_publ_section_title
;
 Tautomeric polymorphism in omeprazole
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   20
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              2057
_journal_page_last               2059
_journal_paper_doi               10.1039/b700506g
_journal_year                    2007
_chemical_formula_moiety         'C17 H19 N3 O3 S'
_chemical_formula_sum            'C17 H19 N3 O3 S'
_chemical_formula_weight         345
_chemical_melting_point          156
_chemical_name_common
;
6-methoxy-2-((4-methoxy-3,5-dimethyl-2-
pyridinyl)methylsulfinyl) -1H-benzimidazole
;
_chemical_name_systematic
;
6-methoxy-2-{(4-methoxy-3,5-dimethyl-2-pyridinyl)methylsulfinyl}
-1H-benzimidazole
;
_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   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.216(2)
_cell_angle_beta                 111.762(2)
_cell_angle_gamma                116.113(2)
_cell_formula_units_Z            2
_cell_length_a                   9.6439(16)
_cell_length_b                   10.2621(17)
_cell_length_c                   10.3322(17)
_cell_measurement_reflns_used    4928
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.04
_cell_measurement_theta_min      2.50
_cell_volume                     835.5(2)
_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      100(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_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  0.0219
_diffrn_reflns_av_sigmaI/netI    0.0240
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            8968
_diffrn_reflns_theta_full        26.06
_diffrn_reflns_theta_max         26.06
_diffrn_reflns_theta_min         2.17
_exptl_absorpt_coefficient_mu    0.214
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.373
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             364
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.591
_refine_diff_density_min         -0.236
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     249
_refine_ls_number_reflns         3280
_refine_ls_number_restraints     39
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.0565
_refine_ls_R_factor_gt           0.0504
_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^)+(0.0649P)^2^+0.6500P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1288
_refine_ls_wR_factor_ref         0.1329
_reflns_number_gt                2917
_reflns_number_total             3280
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b700506g.txt
_cod_data_source_block           grd453_IV
_cod_depositor_comments
;
The following automatic conversions were performed:
'_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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7101902