Metal ion complexation by a new, highly sterically hindered, bowl-shaped carboxylate ligand
Chavez, Ferman A.; Que Jr., Lawrence; Tolman, William B.; Chemical Communications  (2001) 111–; doi:10.1039/b006647h

data_7115092
_publ_section_title
;
 Metal ion complexation by a new, highly sterically hindered, bowl-shaped
 carboxylate ligand
;
_journal_issue                   1
_journal_name_full               'Chemical Communications'
_journal_page_first              111
_journal_paper_doi               10.1039/b006647h
_journal_year                    2001
_chemical_formula_sum            'C122 H146 Fe O12'
_chemical_formula_weight         1860.24
_chemical_name_common            00214
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 115.0900(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   21.1152(13)
_cell_length_b                   13.3988(9)
_cell_length_c                   21.1719(13)
_cell_measurement_reflns_used    6537
_cell_measurement_temperature    173(2)
_cell_volume                     5424.7(6)
_computing_cell_refinement       SAINT
_computing_data_collection       SMART
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  SMART
_diffrn_measurement_method       hemisphere
_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  0.0481
_diffrn_reflns_av_sigmaI/netI    0.0634
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            27850
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.79
_exptl_absorpt_coefficient_mu    0.198
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.877093
_exptl_absorpt_correction_type   multiscans
_exptl_absorpt_process_details   'SADABS, R. Blessing, 1995'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.139
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2000
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.552
_refine_diff_density_min         -0.379
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     647
_refine_ls_number_reflns         9562
_refine_ls_number_restraints     8
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0997
_refine_ls_R_factor_gt           0.0558
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0999P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1594
_refine_ls_wR_factor_ref         0.1772
_reflns_number_gt                5908
_reflns_number_total             9562
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b006647h.txt
_cod_data_source_block           214
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7115092