Structural characterization of selenium and selenium-diiodine analogues of the antithyroid drug 6-<i>n</i>-propyl-2-thiouracil and its alkyl derivatives
C. D. Antoniadis; A. J. Blake; S. K. Hadjikakou; N. Hadjiliadis; P. Hubberstey; M. Schröder; C. Wilson; Acta Crystallographica Section B 62 (2006) 580–591; doi:10.1107/S0108768106011426

data_2100557
_publ_section_title
;
 Structural characterization of selenium and selenium-diiodine
 analogues of the antithyroid drug 6-<i>n</i>-propyl-2-thiouracil and
 its alkyl derivatives
;
_journal_coeditor_code           SO5003
_journal_date_accepted           2006-03-29
_journal_date_recd_electronic    2006-03-08
_journal_issue                   4
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              580
_journal_page_last               591
_journal_paper_category          FA
_journal_paper_doi               10.1107/S0108768106011426
_journal_volume                  62
_journal_year                    2006
_chemical_formula_moiety         'C7 H10 I2 N2 O Se'
_chemical_formula_sum            'C7 H10 I2 N2 O Se'
_chemical_formula_weight         470.93
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_audit_creation_method           'enCIFer editing of SHELXL97 CIF output'
_cell_angle_alpha                75.969(6)
_cell_angle_beta                 86.808(6)
_cell_angle_gamma                73.113(6)
_cell_formula_units_Z            2
_cell_length_a                   6.603(2)
_cell_length_b                   7.700(3)
_cell_length_c                   13.037(5)
_cell_measurement_reflns_used    1665
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.0
_cell_measurement_theta_min      2.8
_cell_volume                     615.3(4)
_computing_cell_refinement       'Bruker SAINT version 6.36a (Bruker, 2001)'
_computing_data_collection       'Bruker SMART version 5.624 (Bruker, 2001)'
_computing_data_reduction        'Bruker SAINT; Bruker SHELXTL'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'enCIFer (Allen et al., 2004; PLATON)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.942
_diffrn_measured_fraction_theta_max 0.941
_diffrn_measurement_device_type  'Bruker SMART1000 CCD area detector'
_diffrn_measurement_method       omega
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.061
_diffrn_reflns_av_sigmaI/netI    0.060
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            5463
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.85
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    8.038
_exptl_absorpt_correction_T_max  0.209
_exptl_absorpt_correction_T_min  0.114
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SHELXTL version 2.10; Bruker, 2003)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    2.542
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       column
_exptl_crystal_F_000             428
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.26
_refine_diff_density_min         -1.31
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.87
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     118
_refine_ls_number_reflns         2657
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.87
_refine_ls_R_factor_all          0.0652
_refine_ls_R_factor_gt           0.0382
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.048P)^2^P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0834
_refine_ls_wR_factor_ref         0.0909
_reflns_number_gt                1702
_reflns_number_total             2660
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            so5003.cif
_cod_data_source_block           7
_cod_original_cell_volume        615.3(7)
_cod_database_code               2100557