Synthesis, crystal structures and phase transformation of the new solid-state forms of tetrandrine
Zhou, Zhengzheng; Tong, Henry H. Y.; Li, Liang; Shek, Fanny L. Y.; Lv, Yang; Zheng, Ying; RSC Adv. 4 (2014) 62586–; doi:10.1039/C4RA10457A

data_7218820
_publ_section_title
;
 Synthesis, crystal structures and phase transformation of the new
 solid-state forms of tetrandrine
;
_journal_issue                   107
_journal_name_full               'RSC Adv.'
_journal_page_first              62586
_journal_paper_doi               10.1039/C4RA10457A
_journal_volume                  4
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C38 H42 N2 O6'
_chemical_formula_sum            'C38 H42 N2 O6'
_chemical_formula_weight         622.74
_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_creation_date             2014-04-02T18:16:09-00:00
_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                   7.12371(10)
_cell_length_b                   11.92092(16)
_cell_length_c                   38.3027(6)
_cell_measurement_reflns_used    8507
_cell_measurement_temperature    100.00(10)
_cell_measurement_theta_max      66.854
_cell_measurement_theta_min      3.857
_cell_volume                     3252.71(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100.00(10)
_diffrn_detector_area_resol_mean 10.5058
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Xcalibur, Atlas, Gemini ultra'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0272
_diffrn_reflns_av_unetI/netI     0.0275
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       42
_diffrn_reflns_limit_l_min       -45
_diffrn_reflns_number            15503
_diffrn_reflns_theta_full        66.95
_diffrn_reflns_theta_max         66.95
_diffrn_reflns_theta_min         3.88
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.69
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.272
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1328
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.27
_refine_diff_density_max         0.204
_refine_diff_density_min         -0.191
_refine_diff_density_rms         0.044
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     415
_refine_ls_number_reflns         5731
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0358
_refine_ls_R_factor_gt           0.0323
_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^)+(0.0409P)^2^+0.5520P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0773
_refine_ls_wR_factor_ref         0.0797
_reflns_number_gt                5412
_reflns_number_total             5731
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4ra10457a1.cif
_cod_data_source_block           12181a
_cod_database_code               7218820