Frustrated Lewis Pairs and Ring-Opening of THF, Dioxane, and Thioxane†
Birkmann, Birgit; Voss, Tanja; Geier, Stephen J.; Ullrich, Matthias; Kehr, Gerald; Erker, Gerhard; Stephan, Douglas W.; Organometallics 29 (2010) 5310–; doi:10.1021/om1003896

data_4066296
_publ_section_title
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 Frustrated Lewis Pairs and Ring-Opening of THF, Dioxane, and
 Thioxane&#x2020;
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_journal_issue                   21
_journal_name_full               Organometallics
_journal_page_first              5310
_journal_paper_doi               10.1021/om1003896
_journal_volume                  29
_journal_year                    2010
_chemical_formula_sum            'C31 H21 B F15 N O'
_chemical_formula_weight         719.30
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 92.054(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.3639(9)
_cell_length_b                   18.5069(15)
_cell_length_c                   15.0807(10)
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      2
_cell_volume                     2890.7(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_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  0.0516
_diffrn_reflns_av_sigmaI/netI    0.0605
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            25095
_diffrn_reflns_theta_full        27.52
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         1.74
_exptl_absorpt_coefficient_mu    0.166
_exptl_absorpt_correction_T_max  0.9885
_exptl_absorpt_correction_T_min  0.9441
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_density_diffrn    1.653
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1448
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.339
_refine_diff_density_min         -0.242
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.011
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     444
_refine_ls_number_reflns         6612
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.0878
_refine_ls_R_factor_gt           0.0436
_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^)+(0.0368P)^2^+0.6087P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0843
_refine_ls_wR_factor_ref         0.0988
_reflns_number_gt                4194
_reflns_number_total             6612
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om1003896_si_002.cif
_cod_data_source_block           C6H5CH2NMe2(CH2)4OB(C6F5)3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4066296