Switching from Separated to Contact Ion-Pair Binding Modes with Diastereomeric Calix[4]pyrrole Bis-phosphonate Receptors
Moira Ciardi; Francesca Tancini; Guzmán Gil-Ramírez; Eduardo C. Escudero Adán; Chiara Massera; Enrico Dalcanale; Pablo Ballester; Journal of the American Chemical Society 134 (2012) 13121–13132; doi:10.1021/ja305684m

data_4118487
_publ_section_title
;
 Switching from Separated to Contact Ion-Pair Binding Modes with
 Diastereomeric Calix[4]pyrrole Bis-phosphonate Receptors
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              13121
_journal_page_last               13132
_journal_paper_doi               10.1021/ja305684m
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'C68 H62 Cl5 N5 O6 P2'
_chemical_formula_weight         1284.42
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/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                 106.371(11)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.934(6)
_cell_length_b                   17.453(6)
_cell_length_c                   20.496(7)
_cell_measurement_reflns_used    8752
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.96
_cell_measurement_theta_min      2.33
_cell_volume                     6155(4)
_computing_cell_refinement       'Bruker APEX2 v2011.4-0'
_computing_data_collection       'Bruker APEX2 v2011.4-0'
_computing_data_reduction        'Bruker SAINT V7.60A'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_solution    Sir2011
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 512
_diffrn_detector_type            '4K CCD area detector APEX II'
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.982
_diffrn_measurement_device_type  'APEX DUO Kappa 4-axis goniometer'
_diffrn_measurement_method
;
 Fullsphere data collection, phi and omega scans
;
_diffrn_measurement_specimen_support 'magnetic support whith MicroMount'
_diffrn_radiation_monochromator  'Quazar MX Multilayer Optics'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0483
_diffrn_reflns_av_sigmaI/netI    0.0326
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            142737
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         29.00
_diffrn_reflns_theta_min         1.18
_diffrn_source                   'Micorfocus source E025 IuS'
_diffrn_source_current           0.6
_diffrn_source_power             50
_diffrn_source_size              '0.2 mm x 0.2 mm fine focus'
_diffrn_source_type              'Bruker APEX DUO'
_exptl_absorpt_coefficient_mu    0.346
_exptl_absorpt_correction_T_max  0.9931
_exptl_absorpt_correction_T_min  0.9662
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
; 
 SADABS Version 2008/1 Bruker-Nonius
 Blessing, Acta Cryst. (1995) A51 33-38
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.386
_exptl_crystal_description       needle
_exptl_crystal_F_000             2672
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.882
_refine_diff_density_min         -0.751
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     807
_refine_ls_number_reflns         16081
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.037
_refine_ls_R_factor_all          0.0664
_refine_ls_R_factor_gt           0.0438
_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^)+(0.0372P)^2^+7.7477P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1011
_refine_ls_wR_factor_ref         0.1116
_reflns_number_gt                12270
_reflns_number_total             16081
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja305684m_si_010.cif
_cod_data_source_block           mo_2p0io_05pyrcl_0m
_cod_original_cell_volume        6155(3)
_cod_database_code               4118487