Discrete, Solvent-Free Alkaline-Earth Metal Cations: Metal...Fluorine Interactions and ROP Catalytic Activity
Yann Sarazin; Bo Liu; Thierry Roisnel; Laurent Maron; Jean-François Carpentier; Journal of the American Chemical Society 133 (2011) 9069–9087; doi:10.1021/ja2024977

data_4106253
_publ_section_title
;
 Discrete, Solvent-Free Alkaline-Earth Metal Cations: Metal...Fluorine
 Interactions and ROP Catalytic Activity
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9069
_journal_page_last               9087
_journal_paper_doi               10.1021/ja2024977
_journal_volume                  133
_journal_year                    2011
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         '2(C27 H54 Ca N2 O3 Si2)'
_chemical_formula_sum            'C54 H108 Ca2 N4 O6 Si4'
_chemical_formula_weight         1101.96
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2011-01-12T15:16:42-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                91.160(6)
_cell_angle_beta                 91.061(6)
_cell_angle_gamma                96.927(6)
_cell_formula_units_Z            2
_cell_length_a                   9.3267(9)
_cell_length_b                   14.2507(16)
_cell_length_c                   25.681(3)
_cell_measurement_reflns_used    7344
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.09
_cell_measurement_theta_min      2.61
_cell_measurement_wavelength     0.71073
_cell_volume                     3386.9(6)
_computing_cell_refinement       'Bruker SMART (Bruker, 2002)'
_computing_data_collection       'Bruker SAINT (Bruker, 2002)'
_computing_data_reduction        'Bruker SAINT (Bruker, 2002)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material
;
           WinGX publication routines (Farrugia, 1999),
           CRYSCAL (T. Roisnel, local program)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999))'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.764
_diffrn_measured_fraction_theta_max 0.764
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0
_diffrn_reflns_av_unetI/netI     0.0515
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            13253
_diffrn_reflns_theta_full        27.63
_diffrn_reflns_theta_max         27.63
_diffrn_reflns_theta_min         0.79
_exptl_absorpt_coefficient_mu    0.282
_exptl_absorpt_correction_T_max  0.967
_exptl_absorpt_correction_T_min  0.658
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  [Sheldrick, G.M. (2002). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.081
_exptl_crystal_description       block
_exptl_crystal_F_000             1208
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.485
_refine_diff_density_min         -0.574
_refine_diff_density_rms         0.14
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.093
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     658
_refine_ls_number_reflns         13253
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.093
_refine_ls_R_factor_all          0.0672
_refine_ls_R_factor_gt           0.0498
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1068P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1422
_refine_ls_wR_factor_ref         0.1651
_reflns_number_gt                10767
_reflns_number_total             13253
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja2024977_si_001_3.cif
_cod_data_source_block           7
_cod_database_code               4106253