Synthesis of a Symmetric Cylindrical Bis(crown ether) Host and Its Complexation with Paraquat
Huang, Feihe; Zakharov, Lev N.; Rheingold, Arnold L.; Ashraf-Khorassani, Mehdi; Journal of Organic Chemistry 70 (2005) 809–813; doi:10.1021/jo048111u

data_4020044
_publ_section_title
;
Synthesis of a Symmetric Cylindrical Bis(crown ether)
Host and Its Complexation with Paraquat
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              809
_journal_page_last               813
_journal_paper_doi               10.1021/jo048111u
_journal_volume                  70
_journal_year                    2005
_chemical_formula_sum            'C78 H104 O26'
_chemical_formula_weight         1457.61
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 105.3810(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.5307(15)
_cell_length_b                   17.4709(15)
_cell_length_c                   25.626(2)
_cell_measurement_reflns_used    7741
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.52
_cell_measurement_theta_min      2.33
_cell_volume                     7567.5(11)
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean ?
_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  0.0351
_diffrn_reflns_av_sigmaI/netI    0.0361
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            63579
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         1.43
_diffrn_standards_decay_%        ?
_diffrn_standards_interval_count ?
_diffrn_standards_interval_time  ?
_diffrn_standards_number         ?
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.890
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.279
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             3120
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.14
_refine_ls_extinction_coef       ?
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     930
_refine_ls_number_reflns         17024
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.0818
_refine_ls_R_factor_gt           0.0622
_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^)+(0.0731P)^2^+5.7282P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1517
_refine_ls_wR_factor_ref         0.1628
_reflns_number_gt                13179
_reflns_number_total             17024
_reflns_threshold_expression     >2sigma(I)
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-scan' changed
to 'multi-scan' according to
'/home/saulius/struct/CIF-dictionaries/cif_core.dic' dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4020044