Macrocyclic Cyclophanes with Two and Three α,ω-Dichalcogena-1,4-diethynylaryl Units: Syntheses and Structural Properties
Daniel B. Werz; Felix R. Fischer; Stefan C. Kornmayer; Frank Rominger; Rolf Gleiter; Journal of Organic Chemistry 73 (2008) 8021–8029; doi:10.1021/jo801378p

data_4023749
_publ_contact_author_address
;
        Organisch-Chemisches Institut
        Universit\"at Heidelberg
        Im Neuenheimer Feld 270
        D-69120 Heidelberg
        Germany
;
_publ_contact_author_email       rolf.gleiter@oci.uni-heidelberg.de
_publ_contact_author_fax         '049 6221 54- 4205'
_publ_contact_author_name        'Gleiter, Rolf'
_publ_contact_author_phone       '049 6221 54- 8400'
_publ_section_title
;
 Macrocyclic Cyclophanes with Two and Three
 \a,\w-Dichalcogena-1,4-diethynylaryl Units:
 Syntheses and Structural Properties
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              8021
_journal_page_last               8029
_journal_paper_doi               10.1021/jo801378p
_journal_volume                  73
_journal_year                    2008
_chemical_formula_sum            'C12 H18 N2 Se2'
_chemical_formula_weight         348.20
_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                90.0
_cell_angle_beta                 106.003(2)
_cell_angle_gamma                90.0
_cell_formula_units_Z            4
_cell_length_a                   11.646(1)
_cell_length_b                   10.434(1)
_cell_length_c                   11.443(1)
_cell_measurement_reflns_used    6378
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      2.67
_cell_volume                     1336.8(2)
_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  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_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  0.021
_diffrn_reflns_av_sigmaI/netI    0.019
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            13812
_diffrn_reflns_theta_full        28.31
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         1.82
_exptl_absorpt_coefficient_mu    5.508
_exptl_absorpt_correction_T_max  0.7334
_exptl_absorpt_correction_T_min  0.5578
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Blessing, Acta Cryst. (1995) A51 33-38.'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.730
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             688
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.06
_refine_diff_density_max         1.179
_refine_diff_density_min         -0.261
_refine_diff_density_rms         0.162
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         3322
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0429
_refine_ls_R_factor_gt           0.0395
_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^)+(0.0734P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0929
_refine_ls_wR_factor_ref         0.0954
_reflns_number_gt                2991
_reflns_number_total             3322
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo801378p_si_002_12.cif
_cod_data_source_block           sko2_(in_paper_25)
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4023749