The ecstasy and the agony; compression studies of 3,4-methylenedioxymethamphetamine (MDMA)
Connor, Lauren E.; Delori, Amit; Hutchison, Ian B.; Nic Daeid, Niamh; Sutcliffe, Oliver B.; Oswald, Iain D. H.; Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 71 (2015) –; doi:10.1107/S2052520614026389

data_2019799
_publ_section_title
;
 The ecstasy and the agony; compression studies of
 3,4-methylenedioxymethamphetamine (MDMA)
;
_journal_issue                   1
_journal_name_full
'Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials'
_journal_paper_doi               10.1107/S2052520614026389
_journal_volume                  71
_journal_year                    2015
_chemical_formula_moiety         'C11 H16 N O2, Cl'
_chemical_formula_sum            'C11 H16 Cl N O2'
_chemical_formula_weight         229.71
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.3325(8)
_cell_length_b                   6.814(2)
_cell_length_c                   16.4416(16)
_cell_measurement_reflns_used    1011
_cell_measurement_temperature    293
_cell_measurement_theta_max      23
_cell_measurement_theta_min      5
_cell_volume                     933.5(3)
_computing_cell_refinement       'Apex2 (Bruker AXS, 2006)'
_computing_data_collection       'Apex2 (Bruker AXS, 2006)'
_computing_data_reduction        'Apex2 (Bruker AXS, 2006)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      293
_diffrn_measured_fraction_theta_full 0.438
_diffrn_measured_fraction_theta_max 0.410
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Bruker Kappa Apex2'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.042
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       2
_diffrn_reflns_limit_k_min       -2
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            2043
_diffrn_reflns_theta_full        17.674
_diffrn_reflns_theta_max         23.256
_diffrn_reflns_theta_min         4.893
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.385
_exptl_absorpt_correction_T_max  0.98
_exptl_absorpt_correction_T_min  0.77
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Siemens, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.634
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             488
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.47
_refine_diff_density_min         -0.50
_refine_ls_abs_structure_details 'Flack (1983), 24 Friedel-pairs'
_refine_ls_abs_structure_Flack   0.21(19)
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0080
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     86
_refine_ls_number_reflns         507
_refine_ls_number_restraints     56
_refine_ls_R_factor_all          0.0474
_refine_ls_R_factor_gt           0.0426
_refine_ls_shift/su_max          0.0032339
_refine_ls_shift/su_mean         0.0003178
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
;
 Method= Modified Sheldrick
 w=1/[\s^2^(F^2^) + ( 0.06P)^2^ + 1.24P]
 ,where P=(max(Fo^2^,0) + 2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1062
_refine_ls_wR_factor_gt          0.1045
_refine_ls_wR_factor_ref         0.1062
_reflns_number_gt                472
_reflns_number_total             510
_reflns_threshold_expression     I>2.0\s(I)
_cod_data_source_file            ps5039sup1.cif
_cod_data_source_block           7
_cod_original_cell_volume        933.50(9)
_cod_original_sg_symbol_H-M      'P c a 21 '
_cod_database_code               2019799
_cod_database_fobs_code          2019799