Reversible, metal-free, heterolytic activation of H2 at room temperature.
Ullrich, Matthias; Lough, Alan J.; Stephan, Douglas W.; Journal of the American Chemical Society 131 (2009) 52–53; doi:10.1021/ja808506t

data_4101687
_publ_section_title
;
 Reversible, metal-free, heterolytic activation of H2 at room temperature.
;
_journal_issue                   1
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              52
_journal_page_last               53
_journal_paper_doi               10.1021/ja808506t
_journal_volume                  131
_journal_year                    2009
_chemical_formula_sum            'C36 H38 B F12 P'
_chemical_formula_weight         740.44
_space_group_IT_number           146
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'R 3'
_symmetry_space_group_name_H-M   'R 3 :H'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            3
_cell_length_a                   16.964(2)
_cell_length_b                   16.964(2)
_cell_length_c                   9.963(2)
_cell_measurement_reflns_used    5785
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      27.5
_cell_measurement_theta_min      3.5
_cell_volume                     2483.0(6)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius B.V., 1997-2002)'
_computing_data_reduction        Denzo-SMN
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXTL V6.1'
_computing_structure_refinement  'SHELXTL V6.1 (Sheldrick, 2008)'
_computing_structure_solution    'SIR-92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \w scans with \k offsets'
_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  0.054
_diffrn_reflns_av_sigmaI/netI    0.045
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            5785
_diffrn_reflns_theta_full        27.45
_diffrn_reflns_theta_max         27.45
_diffrn_reflns_theta_min         3.45
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.178
_exptl_absorpt_correction_T_max  0.984
_exptl_absorpt_correction_T_min  0.889
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.486
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1146
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.239
_refine_diff_density_min         -0.221
_refine_diff_density_rms         0.046
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.16(19)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     154
_refine_ls_number_reflns         2066
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.0429
_refine_ls_R_factor_gt           0.0359
_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^)+(0.0473P)^2^+0.6893P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0802
_refine_ls_wR_factor_ref         0.0855
_reflns_number_gt                1883
_reflns_number_total             2066
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ja808506t_si_002.cif
_cod_data_source_block           '[Cy3PH][HB(pC6F4H)3]'
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Hexagonal' changed to 'hexagonal'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1673 2011-04-08 12:14:43Z adriana 
;
_cod_original_cell_volume        2483.0(7)
_cod_original_sg_symbol_H-M      'R 3'
_cod_database_code               4101687