Potassium and Well-Defined Neutral and Cationic Calcium Fluoroalkoxide Complexes: Structural Features and Reactivity
Roşca, Sorin-Claudiu; Roisnel, Thierry; Dorcet, Vincent; Carpentier, Jean-François; Sarazin, Yann; Organometallics 33 (2014) 5630–; doi:10.1021/om500343w

data_4083356
_publ_section_title
;
 Potassium and Well-Defined Neutral and Cationic Calcium Fluoroalkoxide
 Complexes: Structural Features and Reactivity
;
_journal_issue                   20
_journal_name_full               Organometallics
_journal_page_first              5630
_journal_paper_doi               10.1021/om500343w
_journal_volume                  33
_journal_year                    2014
_chemical_absolute_configuration ad
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C28 H60 Ca2 F12 N4 O4 Si4, 2(C6 H6)'
_chemical_formula_sum            'C40 H72 Ca2 F12 N4 O4 Si4'
_chemical_formula_weight         1093.54
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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             2013-05-13T17:32:55-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 97.874(4)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   11.3380(9)
_cell_length_b                   11.5183(9)
_cell_length_c                   21.7152(18)
_cell_measurement_reflns_used    2962
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      21.44
_cell_measurement_theta_min      2.53
_cell_measurement_wavelength     0.71073
_cell_volume                     2809.1(4)
_computing_cell_refinement       'Bruker APEX2 (Bruker, 2006)'
_computing_data_collection       'Bruker APEX2 (Bruker, 2006)'
_computing_data_reduction        'Bruker APEX2 (Bruker, 2006)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material
;
           WinGX publication routines (Farrugia, 2012),
           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 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0869
_diffrn_reflns_av_unetI/netI     0.1575
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            28189
_diffrn_reflns_theta_full        27.46
_diffrn_reflns_theta_max         27.46
_diffrn_reflns_theta_min         3.01
_exptl_absorpt_coefficient_mu    0.367
_exptl_absorpt_correction_T_max  0.957
_exptl_absorpt_correction_T_min  0.811
_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    1.293
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1152
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.736
_refine_diff_density_min         -0.579
_refine_diff_density_rms         0.102
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.54(7)
_refine_ls_extinction_coef       0.0136(18)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.09
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     588
_refine_ls_number_reflns         12641
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.089
_refine_ls_R_factor_all          0.1564
_refine_ls_R_factor_gt           0.1012
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1253P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2309
_refine_ls_wR_factor_ref         0.2721
_reflns_number_gt                7338
_reflns_number_total             12641
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om500343w_si_003.cif
_cod_data_source_block           {RO3}CaN{SiMe3}2
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4083356