Macrocycles with Switchable exo/endo Metal Binding Sites
Lei-lei Tian; Chun Wang; Sandipan Dawn; Mark D. Smith; Jeanette A. Krause; Linda S. Shimizu; Journal of the American Chemical Society 131 (2009) 17620–17629; doi:10.1021/ja906474z

data_4105427
_publ_contact_author_address
;
Department of Chemistry and Biochemistry
University of South Carolina
Columbia, South Carolina 29208
USA
;
_publ_contact_author_email       shimizul@mail.chem.sc.edu
_publ_contact_author_fax         '1 803 777 9521'
_publ_contact_author_name        'Professor Linda S. Shimizu'
_publ_contact_author_phone       '1 803 777 2066'
_publ_section_title
;
 Macrocycles with Switchable exo/endo Metal Binding Sites
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              17620
_journal_page_last               17629
_journal_paper_doi               10.1021/ja906474z
_journal_volume                  131
_journal_year                    2009
_chemical_formula_moiety         'C26 H26 Cd N9 O6, N O3'
_chemical_formula_sum            'C26 H26 Cd N10 O9'
_chemical_formula_weight         734.97
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   9.4430(8)
_cell_length_b                   21.3341(18)
_cell_length_c                   27.253(2)
_cell_measurement_reflns_used    9953
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      29.394
_cell_measurement_theta_min      3.981
_cell_volume                     5490.3(8)
_computing_cell_refinement       'Bruker SAINT v7.56A'
_computing_data_collection       'Bruker APEX2 v2009.1.0'
_computing_data_reduction        'Bruker SAINT v7.56A'
_computing_molecular_graphics    'Bruker SHELXTL v6.14'
_computing_publication_material  'Bruker SHELXTL v6.14'
_computing_structure_refinement  'Bruker SHELXTL v6.14'
_computing_structure_solution    'Bruker SHELXTL v6.14'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker APEXII'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  'Si-<111> channel cut crystal'
_diffrn_radiation_source         synchrotron
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.77490
_diffrn_reflns_av_R_equivalents  0.0651
_diffrn_reflns_av_sigmaI/netI    0.0330
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -36
_diffrn_reflns_number            66311
_diffrn_reflns_theta_full        31.26
_diffrn_reflns_theta_max         31.26
_diffrn_reflns_theta_min         3.87
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.082
_exptl_absorpt_correction_T_max  0.7462
_exptl_absorpt_correction_T_min  0.6688
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS Version 2008/1 (Bruker, 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.778
_exptl_crystal_description       plate
_exptl_crystal_F_000             2976
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.740
_refine_diff_density_min         -1.012
_refine_diff_density_rms         0.093
_refine_ls_extinction_coef       0.00152(13)
_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   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     437
_refine_ls_number_reflns         6881
_refine_ls_number_restraints     25
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0645
_refine_ls_R_factor_gt           0.0379
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0466P)^2^+8.0714P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0906
_refine_ls_wR_factor_ref         0.1042
_reflns_number_gt                4855
_reflns_number_total             6881
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja906474z_si_001_4.cif
_cod_data_source_block           3
_cod_original_cell_volume        5490.2(8)
_cod_original_sg_symbol_Hall     '-P 2ab 2ac'
_cod_database_code               4105427