Alkynylated Diazadioxaacenes: Syntheses and Properties
Manuel Schaffroth; Benjamin D. Lindner; Vladislav Vasilenko; Frank Rominger; U. H. F. Bunz; Journal of Organic Chemistry 78 (2013) 3142–3150; doi:10.1021/jo400092r

data_4028099
_publ_section_title
;
 Alkynylated Diazadioxaacenes: Syntheses and Properties
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              3142
_journal_page_last               3150
_journal_paper_doi               10.1021/jo400092r
_journal_volume                  78
_journal_year                    2013
_chemical_formula_sum            'C36 H48 N2 O2 Si2'
_chemical_formula_weight         596.94
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 107.021(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   31.2074(15)
_cell_length_b                   8.2678(4)
_cell_length_c                   28.3232(13)
_cell_measurement_reflns_used    6218
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      21.56
_cell_measurement_theta_min      2.31
_cell_volume                     6987.8(6)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_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 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \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  0.0526
_diffrn_reflns_av_sigmaI/netI    0.0451
_diffrn_reflns_limit_h_max       35
_diffrn_reflns_limit_h_min       -35
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            32286
_diffrn_reflns_theta_full        23.82
_diffrn_reflns_theta_max         23.82
_diffrn_reflns_theta_min         1.36
_exptl_absorpt_coefficient_mu    0.134
_exptl_absorpt_correction_T_max  0.9920
_exptl_absorpt_correction_T_min  0.9802
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.135
_exptl_crystal_description       plate
_exptl_crystal_F_000             2576
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.250
_refine_diff_density_min         -0.220
_refine_diff_density_rms         0.039
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     479
_refine_ls_number_reflns         5387
_refine_ls_number_restraints     353
_refine_ls_restrained_S_all      1.133
_refine_ls_R_factor_all          0.0975
_refine_ls_R_factor_gt           0.0556
_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^)+(0.0668P)^2^+9.6971P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1431
_refine_ls_wR_factor_ref         0.1651
_reflns_number_gt                3415
_reflns_number_total             5387
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo400092r_si_004.cif
_cod_data_source_block           mas4
_cod_database_code               4028099