Incorporating active pharmaceutical ingredients into a molecular salt using a chiral counterion
Lemmerer, Andreas; Bourne, Susan A.; Caira, Mino R.; Cotton, Jonathan; Hendricks, Umraan; Peinke, Laura C.; Trollope, Lee; CrystEngComm 12 (2010) 3634–; doi:10.1039/c0ce00043d

data_7212892
_publ_section_title
;
 Incorporating active pharmaceutical ingredients into a molecular salt
 using a chiral counterion
;
_journal_issue                   11
_journal_name_full               CrystEngComm
_journal_page_first              3634
_journal_paper_doi               10.1039/c0ce00043d
_journal_volume                  12
_journal_year                    2010
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C13 H17 O2, C8 H12 N'
_chemical_formula_sum            'C21 H29 N O2'
_chemical_formula_weight         327.45
_chemical_name_systematic
;
((R)-1-phenylethylammonium).((2S)-[2-(4-isobutylphenyl)propanoate])
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2008-09-20T17:42:52-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.8664(5)
_cell_length_b                   12.4548(12)
_cell_length_c                   23.4659(10)
_cell_measurement_reflns_used    24213
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      28.28
_cell_measurement_theta_min      0.4
_cell_volume                     2006.8(3)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 2000)'
_computing_data_reduction        DENZO-SMN
_computing_molecular_graphics
;
Ortep-3 for Windows (Farrugia, 1997) and DIAMOND (Brandenburg, 1999)
;
_computing_publication_material
;
WinGX publication routines (Farrugia, 1999) and PLATON (Spek, 2002)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Nonius KappaCCD area-detector'
_diffrn_measurement_method       '1.3\% \p and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0505
_diffrn_reflns_av_unetI/netI     0.0281
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            19997
_diffrn_reflns_theta_full        25.5
_diffrn_reflns_theta_max         25.5
_diffrn_reflns_theta_min         1.74
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.069
_exptl_absorpt_correction_T_max  0.9932
_exptl_absorpt_correction_T_min  0.9406
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'Bruker XPREP (Bruker, 1999)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.084
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.303
_refine_diff_density_min         -0.217
_refine_diff_density_rms         0.043
_refine_ls_abs_structure_details
'Flack H D (1983), Acta Cryst. A39, 876-881; 1568 friedel pairs measured'
_refine_ls_abs_structure_Flack   10(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.078
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     230
_refine_ls_number_reflns         2163
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.076
_refine_ls_R_factor_all          0.0685
_refine_ls_R_factor_gt           0.0519
_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^)+(0.0848P)^2^+0.3384P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1332
_refine_ls_wR_factor_ref         0.1461
_reflns_number_gt                1747
_reflns_number_total             2163
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0ce0043d.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7212892