Synthesis and anion coordination chemistry of new calix[4]arene pyridinium receptors
Beer, Paul D.; Drew, Michael G. B.; Gradwell, Kate; Journal of the Chemical Society, Perkin Transactions 2  (2000) 511–; doi:10.1039/a908106b

data_7213201
_publ_section_title
;
 Synthesis and anion coordination chemistry of new calix[4]arene
 pyridinium receptors
;
_journal_issue                   3
_journal_name_full
'Journal of the Chemical Society, Perkin Transactions 2'
_journal_page_first              511
_journal_paper_doi               10.1039/a908106b
_journal_year                    2000
_chemical_formula_sum            'C61 H72 N4 O5'
_chemical_formula_weight         941.22
_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                72.321(10)
_cell_angle_beta                 85.089(10)
_cell_angle_gamma                73.503(10)
_cell_formula_units_Z            2
_cell_length_a                   10.442(7)
_cell_length_b                   13.208(9)
_cell_length_c                   23.11(2)
_cell_measurement_reflns_used    all
_cell_measurement_temperature    293(2)
_cell_volume                     2912(4)
_computing_cell_refinement       XDS
_computing_data_collection       'XDS (Kabsch, 1991)'
_computing_data_reduction        XDS
_computing_molecular_graphics    PLATON(Spek,1994)
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measurement_device       'Marresearch Image Plate'
_diffrn_measurement_method
'95 frames at 2^o intervals, counting time 2 min.'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0388
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            6654
_diffrn_reflns_theta_max         24.93
_diffrn_reflns_theta_min         1.85
_diffrn_standards_number         all
_exptl_absorpt_coefficient_mu    0.068
_exptl_absorpt_correction_type   none
_exptl_crystal_density_diffrn    1.074
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1012
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.633
_refine_diff_density_min         -0.299
_refine_diff_density_rms         0.061
_refine_ls_extinction_coef       0.005(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   0.981
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     646
_refine_ls_number_reflns         6654
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.981
_refine_ls_R_factor_all          0.1096
_refine_ls_R_factor_gt           0.0793
_refine_ls_shift/su_max          0.347
_refine_ls_shift/su_mean         0.027
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1896P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2218
_refine_ls_wR_factor_ref         0.2453
_reflns_number_gt                4274
_reflns_number_total             6654
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            a908106bsup1.cif
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.1896P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.1896P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'C61 H72 N4 O5      '
_cod_database_code               7213201