From thia- to selenadiazoles: changing interaction priority.
Lindner, Benjamin D.; Coombs, Benjamin A.; Schaffroth, Manuel; Engelhart, Jens U.; Tverskoy, Olena; Rominger, Frank; Hamburger, Manuel; Bunz, Uwe H. F.; Organic letters 15 (2013) 666–669; doi:10.1021/ol303490b

data_1508909
_publ_section_title
;
 From thia- to selenadiazoles: changing interaction priority.
;
_journal_issue                   3
_journal_name_full               'Organic letters'
_journal_page_first              666
_journal_page_last               669
_journal_paper_doi               10.1021/ol303490b
_journal_volume                  15
_journal_year                    2013
_chemical_formula_sum            'C36 H48 N2 Se Si2'
_chemical_formula_weight         643.90
_chemical_name_common            '3c in manuscript'
_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
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                78.547(4)
_cell_angle_beta                 81.601(4)
_cell_angle_gamma                80.832(4)
_cell_formula_units_Z            2
_cell_length_a                   8.1957(16)
_cell_length_b                   13.139(3)
_cell_length_c                   17.152(3)
_cell_measurement_reflns_used    2961
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      25.29
_cell_measurement_theta_min      2.18
_cell_volume                     1774.5(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker APEX'
_diffrn_measurement_method       '\w 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  0.0398
_diffrn_reflns_av_sigmaI/netI    0.0602
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            14268
_diffrn_reflns_theta_full        25.12
_diffrn_reflns_theta_max         25.12
_diffrn_reflns_theta_min         1.60
_exptl_absorpt_coefficient_mu    1.151
_exptl_absorpt_correction_T_max  0.8936
_exptl_absorpt_correction_T_min  0.7858
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Sheldrick, G. M. (2008). <i>SADABS</i>. University of G\"ottingen, Germany.
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       polyhedron
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.391
_refine_diff_density_min         -0.597
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.023
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         6253
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.0680
_refine_ls_R_factor_gt           0.0419
_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^)+(0.0459P)^2^+0.4099P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0912
_refine_ls_wR_factor_ref         0.1003
_reflns_number_gt                4582
_reflns_number_total             6253
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol303490b_si_002.cif
_cod_data_source_block           bli1
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1508909