Stabilization of anti-aromatic and strained five-membered rings with a transition metal
Congqing Zhu; Shunhua Li; Ming Luo; Xiaoxi Zhou; Yufen Niu; Minglian Lin; Jun Zhu; Zexing Cao; Xin Lu; Tingbin Wen; Zhaoxiong Xie; Paul v. R. Schleyer; Haiping Xia; Nature Chemistry 5 (2013) 698–703; doi:10.1038/nchem.1690

data_1552032
_publ_section_title
;
 Stabilization of anti-aromatic and strained five-membered rings with a
 transition metal
;
_journal_name_full               'Nature Chemistry'
_journal_page_first              698
_journal_page_last               703
_journal_paper_doi               10.1038/nchem.1690
_journal_volume                  5
_journal_year                    2013
_chemical_formula_moiety         'C70 H58 B Cl F4 N O2 Os P3'
_chemical_formula_sum            'C70 H58 B Cl F4 N O2 Os P3'
_chemical_formula_weight         1350.54
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                66.863(5)
_cell_angle_beta                 80.698(4)
_cell_angle_gamma                80.809(4)
_cell_formula_units_Z            2
_cell_length_a                   11.9255(6)
_cell_length_b                   16.0492(8)
_cell_length_c                   16.8145(9)
_cell_measurement_reflns_used    5825
_cell_measurement_temperature    133(2)
_cell_measurement_theta_max      29.2585
_cell_measurement_theta_min      3.3195
_cell_volume                     2904.0(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      133(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.1023
_diffrn_reflns_av_sigmaI/netI    0.1450
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            18359
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.33
_exptl_absorpt_coefficient_mu    2.386
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.54312
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.545
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1360
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         2.438
_refine_diff_density_min         -1.978
_refine_diff_density_rms         0.166
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.911
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     748
_refine_ls_number_reflns         10189
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.911
_refine_ls_R_factor_all          0.0782
_refine_ls_R_factor_gt           0.0557
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0981
_refine_ls_wR_factor_ref         0.1111
_reflns_number_gt                7860
_reflns_number_total             10189
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            nchem.1690-s5.cif
_cod_data_source_block           1
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1552032