17 salts of ephedrine: crystal structures and packing analysis
Edwin A Collier; Roger J Davey; Simon N Black; Ronald J Roberts; Acta Crystallographica Section B 62 (2006) 498–505; doi:10.1107/S0108768106012018

data_2100473
_publ_section_title
;
 17 salts of ephedrine: crystal structures and packing analysis
;
_journal_coeditor_code           BK5025
_journal_date_accepted           2006-04-03
_journal_date_recd_electronic    2005-10-17
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              498
_journal_page_last               505
_journal_paper_category          FA
_journal_paper_doi               10.1107/S0108768106012018
_journal_volume                  62
_journal_year                    2006
_chemical_formula_moiety         'C10 H14 N2 O4'
_chemical_formula_structural     'C10 H14 N2 O4'
_chemical_formula_sum            'C10 H16 N2 O4'
_chemical_formula_weight         228.25
_chemical_name_systematic
;
(1R, 2S)-(-)-ephedrine nitrate
;
_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
_cell_angle_alpha                90
_cell_angle_beta                 97.243(6)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.5309(4)
_cell_length_b                   6.8501(6)
_cell_length_c                   15.6906(13)
_cell_measurement_reflns_used    4151
_cell_measurement_temperature    150
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      1.018
_cell_volume                     589.73(8)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 1997-2000)'
_computing_data_reduction
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.873
_diffrn_measured_fraction_theta_max 0.873
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0321
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            2914
_diffrn_reflns_reduction_process
;
 Scaled and merged with SORTAV
 R.H. Blessing, (1987) Cryst. Rev. 1, 3-58
 R.H. Blessing, (1989) J. Appl. Cryst. 22, 396-397
;
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         3.25
_exptl_absorpt_coefficient_mu    0.1
_exptl_absorpt_correction_T_max  1.041
_exptl_absorpt_correction_T_min  0.951
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.285
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             244
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.173
_refine_diff_density_min         -0.23
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     185
_refine_ls_number_reflns         1274
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0671
_refine_ls_R_factor_gt           0.0437
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0466P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.092
_refine_ls_wR_factor_ref         0.1025
_reflns_number_gt                991
_reflns_number_total             1274
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            bk5025.cif
_cod_data_source_block           EPHENITR
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               2100473