Chloride coordination by oligoureas: from mononuclear crescents to dinuclear foldamers.
Wu, Biao; Jia, Chuandong; Wang, Xiaolei; Li, Shaoguang; Huang, Xiaojuan; Yang, Xiao-Juan; Organic letters 14 (2012) 684–687; doi:10.1021/ol2031153

data_1503546
_publ_section_title
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 Chloride coordination by oligoureas: from mononuclear crescents to
 dinuclear foldamers.
;
_journal_issue                   3
_journal_name_full               'Organic letters'
_journal_page_first              684
_journal_page_last               687
_journal_paper_doi               10.1021/ol2031153
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C66 H100 Cl2 N12 O8'
_chemical_formula_weight         1260.48
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_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                 90.145(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.8924(18)
_cell_length_b                   18.5940(18)
_cell_length_c                   18.4455(18)
_cell_measurement_reflns_used    9922
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.13
_cell_measurement_theta_min      2.20
_cell_volume                     6822.6(11)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w 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  0.0547
_diffrn_reflns_av_sigmaI/netI    0.0666
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            17434
_diffrn_reflns_theta_full        24.96
_diffrn_reflns_theta_max         24.96
_diffrn_reflns_theta_min         1.50
_exptl_absorpt_coefficient_mu    0.157
_exptl_absorpt_correction_T_max  0.9400
_exptl_absorpt_correction_T_min  0.9328
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.227
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2712
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.42
_exptl_crystal_size_min          0.40
_refine_diff_density_max         0.744
_refine_diff_density_min         -0.635
_refine_diff_density_rms         0.101
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.41(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.097
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     852
_refine_ls_number_reflns         10856
_refine_ls_number_restraints     423
_refine_ls_restrained_S_all      1.078
_refine_ls_R_factor_all          0.0906
_refine_ls_R_factor_gt           0.0817
_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^)+(0.1835P)^2^+6.4992P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2391
_refine_ls_wR_factor_ref         0.2592
_reflns_number_gt                9631
_reflns_number_total             10856
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol2031153_si_002.cif
_cod_data_source_block           L4uCl2
_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_values 1715 2011-07-08 13:25:40Z adriana 
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_cod_original_sg_symbol_H-M      Cc
_cod_database_code               1503546