Structural Variation and Supramolecular Isomerism in theC-Methylcalix[4]resorcinarene/Bipyridine System
Ma, Bao-Qing; Zhang, Yuegang; Coppens, Philip; Crystal Growth & Design 2 (2002) 7–13; doi:10.1021/cg0155595

data_4505775
_publ_section_title
;
 Structural Variation and Supramolecular Isomerism in
 theC-Methylcalix[4]resorcinarene/Bipyridine System
;
_journal_issue                   1
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              7
_journal_page_last               13
_journal_paper_doi               10.1021/cg0155595
_journal_volume                  2
_journal_year                    2002
_chemical_formula_sum            'C52 H48 N4 O8'
_chemical_formula_weight         856.94
_chemical_name_systematic        ?
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                101.312(6)
_cell_angle_beta                 100.335(6)
_cell_angle_gamma                95.999(4)
_cell_formula_units_Z            1
_cell_length_a                   6.9270(11)
_cell_length_b                   10.8968(18)
_cell_length_c                   14.735(2)
_cell_measurement_temperature    90(1)
_cell_volume                     1061.6(3)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART CCD 1000'
_computing_data_reduction        SAINT
_computing_molecular_graphics    XP
_computing_publication_material  XCIF
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      90(1)
_diffrn_measured_fraction_theta_full 0.888
_diffrn_measured_fraction_theta_max 0.888
_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  0.0470
_diffrn_reflns_av_sigmaI/netI    0.0697
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            10887
_diffrn_reflns_theta_full        28.69
_diffrn_reflns_theta_max         28.69
_diffrn_reflns_theta_min         1.44
_exptl_absorpt_coefficient_mu    0.091
_exptl_crystal_colour            'light yellow'
_exptl_crystal_density_diffrn    1.340
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             452
_exptl_crystal_size_max          0.28
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.14
_refine_diff_density_max         0.471
_refine_diff_density_min         -0.424
_refine_diff_density_rms         0.066
_refine_ls_extinction_coef       0.033(7)
_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   1.060
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     427
_refine_ls_number_reflns         4870
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.060
_refine_ls_R_factor_all          0.1115
_refine_ls_R_factor_gt           0.0669
_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^)+(0.1207P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1889
_refine_ls_wR_factor_ref         0.2147
_reflns_number_gt                2888
_reflns_number_total             4870
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg0155595_s1.cif
_cod_data_source_block           compound_1
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4505775