π Ligands in Alkaline Earth Complexes
Roşca, Sorin-Claudiu; Caytan, Elsa; Dorcet, Vincent; Roisnel, Thierry; Carpentier, Jean-François; Sarazin, Yann; Organometallics 36 (2017) 1269–; doi:10.1021/acs.organomet.7b00006

data_4089216
_publ_section_title
;
 \p Ligands in Alkaline Earth Complexes
;
_journal_issue                   7
_journal_name_full               Organometallics
_journal_page_first              1269
_journal_paper_doi               10.1021/acs.organomet.7b00006
_journal_volume                  36
_journal_year                    2017
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C32 H60 Ca2 F12 N4 O2 Si4'
_chemical_formula_sum            'C32 H60 Ca2 F12 N4 O2 Si4'
_chemical_formula_weight         953.36
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_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
_cell_angle_alpha                95.334(9)
_cell_angle_beta                 105.458(7)
_cell_angle_gamma                114.326(7)
_cell_formula_units_Z            1
_cell_length_a                   10.3552(14)
_cell_length_b                   11.165(2)
_cell_length_c                   11.811(2)
_cell_measurement_reflns_used    3141
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      26.6
_cell_measurement_theta_min      2.42
_cell_measurement_wavelength     0.71073
_cell_volume                     1166.9(3)
_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 0.981
_diffrn_measured_fraction_theta_max 0.981
_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  0.0472
_diffrn_reflns_av_unetI/netI     0.063
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            14772
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.06
_exptl_absorpt_coefficient_mu    0.427
_exptl_absorpt_correction_T_max  0.987
_exptl_absorpt_correction_T_min  0.900
_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    1.357
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             500
_exptl_crystal_size_max          0.1
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.322
_refine_diff_density_min         -0.293
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.024
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     270
_refine_ls_number_reflns         5266
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0717
_refine_ls_R_factor_gt           0.042
_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^)+(0.0297P)^2^+0.2820P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0793
_refine_ls_wR_factor_ref         0.0921
_reflns_number_gt                3691
_reflns_number_total             5266
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om7b00006_si_002.cif
_cod_data_source_block           '[4-Ca]2'
_cod_database_code               4089216