Analysis of the Aromaticity of Osmabicycles Analogous to the Benzimidazolium Cation
Baya, Miguel; Esteruelas, Miguel A.; Oñate, Enrique; Organometallics 30 (2011) 4404–; doi:10.1021/om200491t

data_4063598
_publ_section_title
;
 Analysis of the Aromaticity of Osmabicycles Analogous to the
 Benzimidazolium Cation
;
_journal_issue                   16
_journal_name_full               Organometallics
_journal_page_first              4404
_journal_paper_doi               10.1021/om200491t
_journal_volume                  30
_journal_year                    2011
_chemical_formula_sum            'C28 H57 F6 N3 O0.5 Os P3'
_chemical_formula_weight         840.88
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 98.7410(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   14.1321(9)
_cell_length_b                   11.2247(7)
_cell_length_c                   45.588(3)
_cell_measurement_reflns_used    9901
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      23
_cell_measurement_theta_min      2
_cell_volume                     7147.6(8)
_computing_cell_refinement       'SAINT+ v. 7.56a (Bruker AXS, 2008)'
_computing_data_collection       'apex2 v. 7.0 (Bruker AXS, 2009)'
_computing_data_reduction        'SAINT+ v. 7.56a (Bruker AXS, 2008)'
_computing_molecular_graphics    'XP, SHELXTL v. 6.14 (Bruker, 2000)'
_computing_publication_material  'XCIF, SHELXTL v. 6.14 (Bruker, 2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.937
_diffrn_measurement_device_type  'Bruker SMART APEX CCD system'
_diffrn_measurement_method       '\w rotations with narrow frames'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0745
_diffrn_reflns_av_sigmaI/netI    0.0648
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       60
_diffrn_reflns_limit_l_min       -61
_diffrn_reflns_number            86094
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         28.81
_diffrn_reflns_theta_min         0.90
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    3.758
_exptl_absorpt_correction_T_max  0.862
_exptl_absorpt_correction_T_min  0.664
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
Absorption correction performed with SADABS program. This is based on the
method of Blessing: Blessing, R. H., Acta Crystallogr., Sect. A 1995, 51, 33.

SADABS: Area-Detector Absorption Correction. Bruker-AXS 
within SAINT+ package, v. 6.1 (2000).
;
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.563
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'irregular block'
_exptl_crystal_F_000             3400
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.04
_refine_diff_density_max         2.103
_refine_diff_density_min         -2.203
_refine_diff_density_rms         0.194
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.165
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     794
_refine_ls_number_reflns         17486
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.165
_refine_ls_R_factor_all          0.0821
_refine_ls_R_factor_gt           0.0514
_refine_ls_shift/su_max          0.034
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0462P)^2^+10.3035P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1025
_refine_ls_wR_factor_ref         0.1213
_reflns_number_gt                12980
_reflns_number_total             17486
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om200491t_si_002.cif
_cod_data_source_block           enrique41as
_cod_original_cell_volume        7147.5(8)
_cod_original_sg_symbol_H-M      P21/n
_cod_original_formula_sum        'C28 H57 F6 N3 O0.50 Os P3'
_cod_database_code               4063598