A monoclinic polymorph of isoxsuprine hydrochloride
Yathirajan, Hemmige S.; Nagaraj, Basavegowda; Narasegowda, Rajenahally S.; Nagarajab, Padmarajaiah; Bolte, Michael; Acta Crystallographica Section E 60 (2004) o2228–o2229; doi:10.1107/S1600536804027904

data_2204672
_publ_section_title
;
 A monoclinic polymorph of isoxsuprine hydrochloride
;
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2228
_journal_page_last               o2229
_journal_paper_doi               10.1107/S1600536804027904
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          'C18 H24 N O3 +, Cl -'
_chemical_formula_moiety         'C18 H24 N O3 +, Cl -'
_chemical_formula_sum            'C18 H24 Cl N O3'
_chemical_formula_weight         337.83
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 107.482(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.0767(11)
_cell_length_b                   19.3499(12)
_cell_length_c                   7.8018(7)
_cell_measurement_reflns_used    24065
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.6
_cell_measurement_theta_min      3.7
_cell_volume                     1738.9(3)
_computing_cell_refinement       X-AREA
_computing_data_collection       'X-AREA (Stoe & Cie, 2001)'
_computing_data_reduction        X-AREA
_computing_molecular_graphics    'XP in SHELXTL-Plus (Sheldrick, 1991)'
_computing_publication_material  'SHELXL97 and PLATON (Spek, 1990)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997) '
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990) '
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  'Stoe IPDS-II two-circle'
_diffrn_measurement_method       \w
_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  0.0428
_diffrn_reflns_av_sigmaI/netI    0.0234
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            21164
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.69
_diffrn_reflns_theta_min         3.69
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.234
_exptl_absorpt_correction_T_max  0.9226
_exptl_absorpt_correction_T_min  0.9041
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(MULABS; Spek, 1990; Blessing, 1995)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             720
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.39
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.273
_refine_diff_density_min         -0.259
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     224
_refine_ls_number_reflns         4008
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.069
_refine_ls_R_factor_all          0.0386
_refine_ls_R_factor_gt           0.0332
_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^)+(0.0585P)^2^+0.1915P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0921
_refine_ls_wR_factor_ref         0.0949
_reflns_number_gt                3499
_reflns_number_total             4008
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            dn6175.cif
_cod_data_source_block           I
_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 

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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2204672
_cod_database_fobs_code          2204672