Crystal structures of the recreational drug <i>N</i>-(4-methoxyphenyl)piperazine (MeOPP) and three of its salts
Kiran Kumar, Haruvegowda; Yathirajan, Hemmige S.; Harish Chinthal, Chayanna; Foro, Sabine; Glidewell, Christopher; Acta Crystallographica Section E 76 (2020) 488–495; doi:10.1107/S2056989020002844

data_2243308
_publ_section_title
;
 Crystal structures of the recreational drug
 <i>N</i>-(4-methoxyphenyl)piperazine (MeOPP) and three of its salts
;
_journal_coeditor_code           ZL2772
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              488
_journal_page_last               495
_journal_paper_doi               10.1107/S2056989020002844
_journal_volume                  76
_journal_year                    2020
_chemical_absolute_configuration unk
_chemical_formula_iupac          'C11 H16 N2 O'
_chemical_formula_moiety         'C11 H16 N2 O'
_chemical_formula_sum            'C11 H16 N2 O'
_chemical_formula_weight         192.26
_chemical_name_systematic
;
<i>N</i>-(4-Methoxyphenyl)piperazine
;
_space_group_crystal_system      orthorhombic
_space_group_IT_number           33
_space_group_name_Hall           'P 2c -2n'
_space_group_name_H-M_alt        'P n a 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     dual
_audit_creation_method           SHELXL-2014
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.9683(7)
_cell_length_b                   7.9683(8)
_cell_length_c                   18.975(2)
_cell_measurement_reflns_used    1984
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.706
_cell_measurement_theta_min      2.772
_cell_volume                     1053.60(19)
_computing_cell_refinement
;
CrysAlis RED (Oxford Diffraction, 2009)
;
_computing_data_collection
;
CrysAlis CCD (Oxford Diffraction, 2009)
;
_computing_data_reduction
;
CrysAlis RED (Oxford Diffraction, 2009)
;
_computing_molecular_graphics
;
PLATON (Spek, 2020)
;
_computing_publication_material
;
SHELXL-2014 (Sheldrick, 2015b) and PLATON (Spek, 2020)
;
_computing_structure_refinement
;
SHELXL-2014 (Sheldrick, 2015b)
;
_computing_structure_solution
;
SHELXT (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.938
_diffrn_measurement_device_type
;
Oxford Diffraction Xcalibur
with Sapphire CCD
;
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0119
_diffrn_reflns_av_unetI/netI     0.0152
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            4066
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.706
_diffrn_reflns_theta_min         2.772
_diffrn_source                   'Enhance (Mo) X-ray Source'
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  0.969
_exptl_absorpt_correction_T_min  0.814
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(CrysAlis RED; Oxford Diffraction, 2009)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.212
_exptl_crystal_description       block
_exptl_crystal_F_000             416
_exptl_crystal_size_max          0.480
_exptl_crystal_size_mid          0.480
_exptl_crystal_size_min          0.400
_refine_diff_density_max         0.104
_refine_diff_density_min         -0.116
_refine_ls_abs_structure_details
;
Flack x determined using 546 quotients
[(<i>I</i>^+^)-(<i>I</i>^-^)]/[(<i>I</i>^+^)+(<i>I</i>^-^)]
(Parsons <i>et al.</i>,  2013)
;
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.062
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     131
_refine_ls_number_reflns         1984
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.062
_refine_ls_R_factor_all          0.0508
_refine_ls_R_factor_gt           0.0355
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0466P)^2^+0.0420P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0815
_refine_ls_wR_factor_ref         0.0884
_reflns_number_gt                1545
_reflns_number_total             1984
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            zl2772sup1.cif
_cod_data_source_block           I
_cod_database_code               2243308
_cod_database_fobs_code          2243308
_shelx_estimated_absorpt_t_min   0.963
_shelx_estimated_absorpt_t_max   0.969
_shelx_hkl_checksum              32534
_shelx_res_checksum              80037
_shelxl_version_number           2.014