Chiral 15-Metallacrown-5 Complexes Differentially Bind Carboxylate Anions
Annabel D. Cutland; Jason A. Halfen; Jeff W. Kampf; Vincent L. Pecoraro; Journal of the American Chemical Society 123 (2001) 6211–6212; doi:10.1021/ja015610t

data_4115592
_publ_section_title
;
 Chiral 15-Metallacrown-5 Complexes Differentially Bind Carboxylate Anions
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_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6211
_journal_page_last               6212
_journal_paper_doi               10.1021/ja015610t
_journal_volume                  123
_journal_year                    2001
_chemical_formula_sum            'C96 H163 Cu10 La2 N20 O79'
_chemical_formula_weight         3774.68
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_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_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 117.8620(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   14.6821(2)
_cell_length_b                   38.1937(7)
_cell_length_c                   15.6385(2)
_cell_measurement_reflns_used    6809
_cell_measurement_temperature    158(2)
_cell_measurement_theta_max      26.29
_cell_measurement_theta_min      2.24
_cell_volume                     7752.9(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      158(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0379
_diffrn_reflns_av_sigmaI/netI    0.0525
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       47
_diffrn_reflns_limit_k_min       -47
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            72009
_diffrn_reflns_theta_full        26.39
_diffrn_reflns_theta_max         26.39
_diffrn_reflns_theta_min         2.61
_exptl_absorpt_coefficient_mu    1.980
_exptl_absorpt_correction_T_max  0.837
_exptl_absorpt_correction_T_min  0.667
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Blessing, Acta Cryst. (1995) A51 33-38.'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.617
_exptl_crystal_description       block
_exptl_crystal_F_000             3830
_exptl_crystal_size_max          0.22
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.40
_refine_diff_density_max         1.102
_refine_diff_density_min         -1.122
_refine_diff_density_rms         0.260
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.20(3)
_refine_ls_extinction_coef       0.0145(6)
_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   1.055
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1429
_refine_ls_number_reflns         31312
_refine_ls_number_restraints     833
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.1150
_refine_ls_R_factor_gt           0.1090
_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^)+(0.1635P)^2^+130.2227P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2968
_refine_ls_wR_factor_ref         0.3009
_reflns_number_gt                27837
_reflns_number_total             31312
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja015610t_s1_2.cif
_cod_data_source_block           ac64b_compound1a
_cod_database_code               4115592