Synthesis and structural variations of substituted phenylamide complexes of the heavy alkaline earth metals calcium, strontium and barium
Gärtner, Martin; Görls, Helmar; Westerhausen, Matthias; Dalton Transactions  (2008) 1574–1582; doi:10.1039/b717267b

data_7003574
_publ_section_title
;
 Synthesis and structural variations of substituted phenylamide
 complexes of the heavy alkaline earth metals calcium, strontium and
 barium
;
_journal_issue                   12
_journal_name_full               'Dalton Transactions'
_journal_page_first              1574
_journal_page_last               1582
_journal_paper_doi               10.1039/b717267b
_journal_year                    2008
_chemical_formula_sum            'C20 H24 Ba F4 N2 O2'
_chemical_formula_weight         537.75
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                103.658(2)
_cell_angle_beta                 93.466(2)
_cell_angle_gamma                95.221(2)
_cell_formula_units_Z            2
_cell_length_a                   8.3978(3)
_cell_length_b                   11.0772(4)
_cell_length_c                   11.9910(4)
_cell_measurement_temperature    183(2)
_cell_volume                     1075.54(7)
_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 0.994
_diffrn_measured_fraction_theta_max 0.994
_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  0.0303
_diffrn_reflns_av_sigmaI/netI    0.0569
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            7837
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.25
_exptl_absorpt_coefficient_mu    1.898
_exptl_absorpt_correction_T_max  0.7754
_exptl_absorpt_correction_T_min  0.7287
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
[c.f. r.h. blessing, acta cryst. (1995), a51, 33-38]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.660
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             532
_exptl_crystal_size_max          0.04
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.873
_refine_diff_density_min         -0.695
_refine_diff_density_rms         0.124
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     268
_refine_ls_number_reflns         4902
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0499
_refine_ls_R_factor_gt           0.0377
_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^)+(0.0439P)^2^+0.6669P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0850
_refine_ls_wR_factor_ref         0.0915
_reflns_number_gt                4192
_reflns_number_total             4902
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b717267b.txt
_cod_data_source_block           FO3221
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7003574