Functionalized Cyclic Disilenes via Ring Expansion of Cyclotrisilenes with Isocyanides
Ohmori, Yu; Ichinohe, Masaaki; Sekiguchi, Akira; Cowley, Michael J.; Huch, Volker; Scheschkewitz, David; Organometallics 32 (2013) 1591–; doi:10.1021/om400054u

data_4080522
_publ_section_title
;
 Functionalized Cyclic Disilenes via Ring Expansion of Cyclotrisilenes
 with Isocyanides
;
_journal_issue                   6
_journal_name_full               Organometallics
_journal_page_first              1591
_journal_paper_doi               10.1021/om400054u
_journal_volume                  32
_journal_year                    2013
_chemical_formula_sum            'C72 H108 N Si3'
_chemical_formula_weight         1071.86
_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                83.677(2)
_cell_angle_beta                 87.454(2)
_cell_angle_gamma                73.316(2)
_cell_formula_units_Z            2
_cell_length_a                   13.3836(6)
_cell_length_b                   13.6638(6)
_cell_length_c                   19.0406(8)
_cell_measurement_reflns_used    9899
_cell_measurement_temperature    122(2)
_cell_measurement_theta_max      27.89
_cell_measurement_theta_min      2.53
_cell_volume                     3314.8(3)
_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      122(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_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  0.0379
_diffrn_reflns_av_sigmaI/netI    0.0487
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            48608
_diffrn_reflns_theta_full        27.97
_diffrn_reflns_theta_max         27.97
_diffrn_reflns_theta_min         1.08
_exptl_absorpt_coefficient_mu    0.111
_exptl_absorpt_correction_T_max  0.9857
_exptl_absorpt_correction_T_min  0.9608
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, BrukerAXS 2008'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.074
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1178
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.33
_exptl_crystal_size_min          0.13
_refine_diff_density_max         0.646
_refine_diff_density_min         -0.263
_refine_diff_density_rms         0.049
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.014
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1110
_refine_ls_number_reflns         15743
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0691
_refine_ls_R_factor_gt           0.0444
_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^)+(0.0531P)^2^+1.3779P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1059
_refine_ls_wR_factor_ref         0.1190
_reflns_number_gt                11676
_reflns_number_total             15743
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om400054u_si_006.cif
_cod_data_source_block           Compound3b
_cod_depositor_comments
;
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               4080522