Synthesis, Structure, and Functionalization of Homo Heterocalix[2]arene[2]triazines: Versatile Conformation and Cavity Structures Regulated by the Bridging Elements
Yin Chen; De-Xian Wang; Zhi-Tang Huang; Mei-Xiang Wang; Journal of Organic Chemistry 75 (2010) 3786–3796; doi:10.1021/jo100571c

data_4025465
_publ_section_title
;
 Synthesis, Structure, and Functionalization of Homo
 Heterocalix[2]arene[2]triazines: Versatile Conformation and Cavity
 Structures Regulated by the Bridging Elements
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              3786
_journal_page_last               3796
_journal_paper_doi               10.1021/jo100571c
_journal_volume                  75
_journal_year                    2010
_chemical_formula_sum            'C20 H14 Cl2 N8 O2'
_chemical_formula_weight         469.29
_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                72.71(3)
_cell_angle_beta                 75.53(3)
_cell_angle_gamma                88.81(3)
_cell_formula_units_Z            2
_cell_length_a                   8.3378(17)
_cell_length_b                   10.574(2)
_cell_length_c                   12.317(3)
_cell_measurement_reflns_used    3371
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      24.99
_cell_measurement_theta_min      2.53
_cell_volume                     1002.3(4)
_computing_cell_refinement       'Rapid Auto(Rigaku 2001)'
_computing_data_collection       'Rapid Auto(Rigaku 2001)'
_computing_data_reduction        'Rapid Auto(Rigaku 2001)'
_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      293(2)
_diffrn_measured_fraction_theta_full 0.955
_diffrn_measured_fraction_theta_max 0.955
_diffrn_measurement_device_type  'Rigaku raxis Rapid IP Area Detector'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0281
_diffrn_reflns_av_sigmaI/netI    0.0300
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            5142
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         2.53
_exptl_absorpt_coefficient_mu    0.362
_exptl_absorpt_correction_T_max  0.9821
_exptl_absorpt_correction_T_min  0.8938
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.555
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             480
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.294
_refine_diff_density_min         -0.234
_refine_diff_density_rms         0.060
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.260
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     289
_refine_ls_number_reflns         3371
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.260
_refine_ls_R_factor_all          0.0737
_refine_ls_R_factor_gt           0.0577
_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^)+(0.1000P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1639
_refine_ls_wR_factor_ref         0.1724
_reflns_number_gt                2777
_reflns_number_total             3371
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo100571c_si_001_03.cif
_cod_data_source_block           22O2N
_cod_database_code               4025465