Diorganodiselenides and zinc(ii) organoselenolates containing (imino)aryl groups of type 2-(RN[double bond, length as m-dash]CH)C(6)H(4).
Pöllnitz, Alpar; Silvestru, Cristian; Carpentier, Jean-François; Silvestru, Anca; Dalton transactions (Cambridge, England : 2003) 41 (2012) 5060–5070; doi:10.1039/c2dt30098b

data_7018757
_publ_section_title
;
 Diorganodiselenides and zinc(ii) organoselenolates containing (imino)aryl
 groups of type 2-(RN[double bond, length as m-dash]CH)C(6)H(4).
;
_journal_issue                   16
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5060
_journal_page_last               5070
_journal_paper_doi               10.1039/c2dt30098b
_journal_volume                  41
_journal_year                    2012
_chemical_formula_moiety         'C28 H24 N2 Se2'
_chemical_formula_sum            'C28 H24 N2 Se2'
_chemical_formula_weight         546.41
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.1520(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.8520(8)
_cell_length_b                   22.7903(18)
_cell_length_c                   9.6203(7)
_cell_measurement_reflns_used    5149
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      23.29
_cell_measurement_theta_min      2.30
_cell_volume                     2379.3(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      297(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0476
_diffrn_reflns_av_sigmaI/netI    0.0354
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            22703
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.79
_exptl_absorpt_coefficient_mu    3.126
_exptl_absorpt_correction_T_max  0.4970
_exptl_absorpt_correction_T_min  0.4441
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Bruker, 2001.'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.525
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1096
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.29
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.271
_refine_diff_density_min         -0.374
_refine_diff_density_rms         0.090
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.053
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         4190
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.0396
_refine_ls_R_factor_gt           0.0291
_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^)+(0.0331P)^2^+0.3057P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0681
_refine_ls_wR_factor_ref         0.0710
_reflns_number_gt                3485
_reflns_number_total             4190
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt30098b.txt
_cod_data_source_block           576r
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      'P2(1)/c '
_cod_database_code               7018757