Bromination and iodination of diphosphane dichalcogenides.
Upmann, Daniel; Jones, Peter G.; Dalton transactions (Cambridge, England : 2003) 47 (2018) 2748–2758; doi:10.1039/c7dt04531j

data_7045520
_publ_section_title
;
 Bromination and iodination of diphosphane dichalcogenides.
;
_journal_issue                   8
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              2748
_journal_page_last               2758
_journal_paper_doi               10.1039/c7dt04531j
_journal_volume                  47
_journal_year                    2018
_chemical_formula_sum            'C26 H24 P2 Se2'
_chemical_formula_weight         556.31
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
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_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2017-10-11 deposited with the CCDC.
2018-02-02 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 103.381(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.5936(2)
_cell_length_b                   16.1956(3)
_cell_length_c                   15.7995(3)
_cell_measurement_reflns_used    30186
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.8115
_cell_measurement_theta_min      2.1777
_cell_volume                     2388.19(8)
_computing_cell_refinement
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET) 
(compiled Jan 23 2012,18:06:46) 
;
_computing_data_collection
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CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET) 
(compiled Jan 23 2012,18:06:46) 
;
_computing_data_reduction
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET) 
(compiled Jan 23 2012,18:06:46) 
;
_computing_molecular_graphics    'Bruker XP'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 16.1419
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur, Eos'
_diffrn_measurement_method       \w-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0495
_diffrn_reflns_av_sigmaI/netI    0.0195
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            151754
_diffrn_reflns_theta_full        30.03
_diffrn_reflns_theta_max         30.03
_diffrn_reflns_theta_min         2.28
_exptl_absorpt_coefficient_mu    3.242
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.73535
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlisPro, Oxford Diffraction Ltd., 
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET) 
(compiled Jan 23 2012,18:06:46) 
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.547
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lath
_exptl_crystal_F_000             1112
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.725
_refine_diff_density_min         -0.356
_refine_diff_density_rms         0.072
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     271
_refine_ls_number_reflns         6977
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0348
_refine_ls_R_factor_gt           0.0264
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0244P)^2^+1.9514P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0553
_refine_ls_wR_factor_ref         0.0580
_reflns_number_gt                6115
_reflns_number_total             6977
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7dt04531j2.cif
_cod_data_source_block           gisela
_cod_depositor_comments
'Adding full bibliography for 7045509--7045531.cif.'
_cod_original_cell_volume        2388.21(8)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7045520