New insight into the chemistry of selenoureas: synthesis and single crystal structural study of diverse derivatives
Hua, Guoxiong; Du, Junyi; Carpenter-Warren, Cameron L.; Cordes, David B.; Slawin, Alexandra M. Z.; Woollins, J. Derek; New Journal of Chemistry 43 (2019) 7035–; doi:10.1039/C9NJ01059A

data_7058298
_publ_section_title
;
 New insight into the chemistry of selenoureas: synthesis and single
 crystal structural study of diverse derivatives
;
_journal_issue                   18
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              7035
_journal_paper_doi               10.1039/C9NJ01059A
_journal_volume                  43
_journal_year                    2019
_chemical_formula_moiety         'C23 H17 Br N2 O2 Se'
_chemical_formula_sum            'C23 H17 Br N2 O2 Se'
_chemical_formula_weight         512.26
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_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
_atom_sites_solution_secondary   difmap
_audit_creation_date             2019-02-07
_audit_creation_method           'by CrystalStructure 4.3'
_audit_update_record
;
2019-02-27 deposited with the CCDC.    2019-04-09 downloaded from the CCDC.
;
_cell_angle_alpha                65.702(6)
_cell_angle_beta                 79.265(6)
_cell_angle_gamma                87.524(7)
_cell_formula_units_Z            2
_cell_length_a                   9.5971(6)
_cell_length_b                   10.5881(7)
_cell_length_c                   11.4042(7)
_cell_measurement_reflns_used    6261
_cell_measurement_temperature    173
_cell_measurement_theta_max      25.40
_cell_measurement_theta_min      2.10
_cell_volume                     1036.98(13)
_computing_cell_refinement       'CrystalClear-SM Expert 2.1 b45'
_computing_data_collection       'CrystalClear-SM Expert 2.1 b45 (Rigaku, 2015)'
_computing_data_reduction        'CrystalClear-SM Expert 2.1 b45'
_computing_molecular_graphics    'CrystalStructure 4.3'
_computing_publication_material  'CrystalStructure 4.3 (Rigaku, 2018)'
_computing_structure_refinement  'SHELXL Version 2018/3 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXT Version 2014/4 (Sheldrick, 2014)'
_diffrn_ambient_temperature      173
_diffrn_detector_area_resol_mean 13.653
_diffrn_measured_fraction_theta_full 0.957
_diffrn_measured_fraction_theta_max 0.956
_diffrn_measurement_device_type  'Rigaku SCX mini'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0995
_diffrn_reflns_av_unetI/netI     0.0901
_diffrn_reflns_Laue_measured_fraction_full 0.957
_diffrn_reflns_Laue_measured_fraction_max 0.956
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            8659
_diffrn_reflns_point_group_measured_fraction_full 0.957
_diffrn_reflns_point_group_measured_fraction_max 0.956
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.389
_diffrn_reflns_theta_min         2.112
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.765
_exptl_absorpt_correction_T_max  0.311
_exptl_absorpt_correction_T_min  0.231
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'REQAB (Rigaku, 1998)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.640
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             508.00
_exptl_crystal_size_max          0.660
_exptl_crystal_size_mid          0.360
_exptl_crystal_size_min          0.310
_refine_diff_density_max         0.53
_refine_diff_density_min         -0.57
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.001
_refine_ls_hydrogen_treatment    constr
_refine_ls_number_parameters     263
_refine_ls_number_reflns         3657
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0354
_refine_ls_R_factor_gt           0.0303
_refine_ls_shift/su_max          0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0289P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0834
_refine_ls_wR_factor_ref         0.0845
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3082
_reflns_number_total             3657
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            c9nj01059a2.cif
_cod_data_source_block           2a
_cod_depositor_comments
'Adding full bibliography for 7058295--7058306.cif.'
_cod_database_code               7058298
_shelx_res_checksum              67223