2,6-Diisopropylphenylamides of Potassium and Calcium: A Primary Amido Ligand in s-Block Metal Chemistry with an Unprecedented Catalytic Reactivity
Glock, Carsten; Younis, Fadi M.; Ziemann, Steffen; Görls, Helmar; Imhof, Wolfgang; Krieck, Sven; Westerhausen, Matthias; Organometallics 32 (2013) 2649–; doi:10.1021/om4001007

data_4080698
_publ_section_title
;
 2,6-Diisopropylphenylamides of Potassium and Calcium: A Primary Amido
 Ligand in s-Block Metal Chemistry with an Unprecedented Catalytic
 Reactivity
;
_journal_issue                   9
_journal_name_full               Organometallics
_journal_page_first              2649
_journal_paper_doi               10.1021/om4001007
_journal_volume                  32
_journal_year                    2013
_chemical_formula_moiety         'C48 H72 Ca K2 N4, C7 H8'
_chemical_formula_sum            'C55 H80 Ca K2 N4'
_chemical_formula_weight         915.51
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/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                 123.840(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.5067(15)
_cell_length_b                   18.9652(14)
_cell_length_c                   17.0042(9)
_cell_measurement_reflns_used    17416
_cell_measurement_temperature    183(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.56
_cell_volume                     5225.0(6)
_computing_cell_refinement       DENZO
_computing_data_collection       COLLECT
_computing_data_reduction        DENZO
_computing_molecular_graphics    SHELXTL/PC
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      183(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'phi- + omega-scan'
_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  0.1152
_diffrn_reflns_av_sigmaI/netI    0.1474
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            17416
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         2.56
_exptl_absorpt_coefficient_mu    0.318
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            needle
_exptl_crystal_density_diffrn    1.164
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1984
_exptl_crystal_size_max          0.06
_exptl_crystal_size_mid          0.03
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.512
_refine_diff_density_min         -0.455
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.986
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     295
_refine_ls_number_reflns         5904
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.986
_refine_ls_R_factor_all          0.1740
_refine_ls_R_factor_gt           0.0649
_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^)+(0.0719P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1294
_refine_ls_wR_factor_ref         0.1679
_reflns_number_gt                2824
_reflns_number_total             5904
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om4001007_si_001.cif
_cod_data_source_block           FO3776
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               4080698