The Thermosalient Phenomenon. "Jumping Crystals" and Crystal Chemistry of the Anticholinergic Agent Oxitropium Bromide
Željko Skoko; Sharona Zamir; Panče Naumov; Joel Bernstein; Journal of the American Chemical Society 132 (2010) 14191–14202; doi:10.1021/ja105508b

data_4103220
_publ_section_title
;
 The Thermosalient Phenomenon. "Jumping Crystals" and Crystal Chemistry of
 the Anticholinergic Agent Oxitropium Bromide
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              14191
_journal_page_last               14202
_journal_paper_doi               10.1021/ja105508b
_journal_volume                  132
_journal_year                    2010
_chemical_absolute_configuration unk
_chemical_formula_sum            'C19 H26 Br N O4'
_chemical_formula_weight         412.32
_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             2010-03-21T23:13:47-00:00
_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                   7.3927(2)
_cell_length_b                   10.1512(4)
_cell_length_c                   24.6291(9)
_cell_measurement_temperature    293(2)
_cell_volume                     1848.29(11)
_computing_cell_refinement       'APEX2 software (Bruker, 2007)'
_computing_data_collection       'APEX2 software (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 2005)'
_computing_publication_material  'WinGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker SMART APEX2 diffractometer'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  'multilayer confocal TXS mirror'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0334
_diffrn_reflns_av_unetI/netI     0.0511
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            17601
_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         2.17
_exptl_absorpt_coefficient_mu    2.247
_exptl_absorpt_correction_type   sphere
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.482
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             856
_exptl_crystal_size_max          0.06
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.458
_refine_diff_density_min         -0.302
_refine_diff_density_rms         0.049
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.008(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     227
_refine_ls_number_reflns         4223
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0517
_refine_ls_R_factor_gt           0.0321
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0280P)^2^+0.2715P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0695
_refine_ls_wR_factor_ref         0.0764
_reflns_number_gt                3337
_reflns_number_total             4223
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja105508b_si_006.cif
_cod_data_source_block           oxtb4_0m
_cod_database_code               4103220