Synthesis, Structures, and Conformational Characteristics of Calixarene Monoanions and Dianions
Tracy A. Hanna; Lihua Liu; Alfredo M. Angeles-Boza; Xiaodi Kou; C. David Gutsche; Krzysztof Ejsmont; William H. Watson; Lev N. Zakharov; Christopher D. Incarvito; Arnold L. Rheingold; Journal of the American Chemical Society 125 (2003) 6228–6238; doi:10.1021/ja0289797

data_4113744
_publ_contact_author             'Tracy A. Hanna'
_publ_contact_author_email       T.Hanna@tcu.edu
_publ_section_title
;
 Synthesis, Structures, and Conformational Characteristics of Calixarene
 Monoanions and Dianions
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              6228
_journal_page_last               6238
_journal_paper_doi               10.1021/ja0289797
_journal_volume                  125
_journal_year                    2003
_chemical_formula_sum            'C54 H65 O12 Rb2'
_chemical_formula_weight         1077.00
_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                 107.4530(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   14.3918(8)
_cell_length_b                   25.2018(15)
_cell_length_c                   15.1928(9)
_cell_measurement_temperature    213(2)
_cell_volume                     5256.7(5)
_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  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0302
_diffrn_reflns_av_sigmaI/netI    0.0397
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            21996
_diffrn_reflns_theta_full        22.50
_diffrn_reflns_theta_max         22.50
_diffrn_reflns_theta_min         1.62
_exptl_absorpt_coefficient_mu    1.921
_exptl_absorpt_correction_type   empirical
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.361
_exptl_crystal_description       Prismatic
_exptl_crystal_F_000             2236
_exptl_crystal_size_max          0.63
_exptl_crystal_size_mid          0.52
_exptl_crystal_size_min          0.31
_refine_diff_density_max         0.519
_refine_diff_density_min         -0.435
_refine_diff_density_rms         0.050
_refine_ls_extinction_coef       0.0000(2)
_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   0.925
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     655
_refine_ls_number_reflns         6874
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.925
_refine_ls_R_factor_all          0.0532
_refine_ls_R_factor_gt           0.0360
_refine_ls_shift/su_max          13.538
_refine_ls_shift/su_mean         0.290
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0692P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0943
_refine_ls_wR_factor_ref         0.1002
_reflns_number_gt                5165
_reflns_number_total             6874
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja0289797si20021230_042221_09.cif
_cod_data_source_block           34
_cod_database_code               4113744