Synthesis and Structure of Oxacalix[2]arene[2]triazines of an Expanded π-Electron-Deficient Cavity and Their Interactions with Anions
Sen Li; Shi-Xin Fa; Qi-Qiang Wang; De-Xian Wang; Mei-Xiang Wang; Journal of Organic Chemistry 77 (2012) 1860–1867; doi:10.1021/jo2024448

data_4026977
_publ_section_title
;
 Synthesis and Structure of Oxacalix[2]arene[2]triazines of an Expanded
 \p-Electron-Deficient Cavity and Their Interactions with Anions
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1860
_journal_page_last               1867
_journal_paper_doi               10.1021/jo2024448
_journal_volume                  77
_journal_year                    2012
_chemical_formula_moiety         'C20 H14 N6 O6, 2(C H2 Cl2)'
_chemical_formula_sum            'C22 H18 Cl4 N6 O6'
_chemical_formula_weight         604.22
_space_group_IT_number           20
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'C 2c 2'
_symmetry_space_group_name_H-M   'C 2 2 21'
_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            4
_cell_length_a                   9.1999(18)
_cell_length_b                   16.063(3)
_cell_length_c                   19.924(4)
_cell_measurement_reflns_used    434
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.17
_cell_volume                     2944.3(10)
_computing_cell_refinement       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_collection       'CrystalClear (Rigaku Inc., 2008)'
_computing_data_reduction        'CrystalClear (Rigaku Inc., 2008)'
_computing_molecular_graphics    'XP in Siemens SHELXTL (Sheldrick, 1994)'
_computing_publication_material  'SHELX97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Saturn724+ CCD'
_diffrn_measurement_method       '\w scans at fixed \c = 45\%'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0294
_diffrn_reflns_av_sigmaI/netI    0.0220
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            9651
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.73
_exptl_absorpt_coefficient_mu    0.447
_exptl_absorpt_correction_T_max  0.9081
_exptl_absorpt_correction_T_min  0.8345
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku Inc., 2008)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.363
_exptl_crystal_description       block
_exptl_crystal_F_000             1232
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.22
_refine_diff_density_max         0.199
_refine_diff_density_min         -0.155
_refine_diff_density_rms         0.040
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.01(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.083
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         2574
_refine_ls_number_restraints     37
_refine_ls_restrained_S_all      1.129
_refine_ls_R_factor_all          0.0375
_refine_ls_R_factor_gt           0.0365
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0439P)^2^+1.6003P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0893
_refine_ls_wR_factor_ref         0.0902
_reflns_number_gt                2511
_reflns_number_total             2574
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo2024448_si_005.cif
_cod_data_source_block           sa129
_cod_original_cell_volume        2944.4(10)
_cod_database_code               4026977