Encapsulation of conventional and unconventional water dimers by water-binding foldamers.
Ong, Wei Qiang; Zhao, Huaiqing; Fang, Xiao; Woen, Susanto; Zhou, Feng; Yap, Weiliang; Su, Haibin; Li, Sam F. Y.; Zeng, Huaqiang; Organic letters 13 (2011) 3194–3197; doi:10.1021/ol2011083

data_1502241
_publ_section_title
;
 Encapsulation of conventional and unconventional water dimers by
 water-binding foldamers.
;
_journal_issue                   12
_journal_name_full               'Organic letters'
_journal_page_first              3194
_journal_page_last               3197
_journal_paper_doi               10.1021/ol2011083
_journal_volume                  13
_journal_year                    2011
_chemical_formula_sum            'C28 H26 N6 O8'
_chemical_formula_weight         574.55
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 99.1120(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.9188(3)
_cell_length_b                   27.2416(13)
_cell_length_c                   14.3296(7)
_cell_measurement_reflns_used    5920
_cell_measurement_temperature    223(2)
_cell_measurement_theta_max      27.38
_cell_measurement_theta_min      2.67
_cell_volume                     2666.7(2)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      223(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0268
_diffrn_reflns_av_sigmaI/netI    0.0299
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -35
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            18585
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.62
_exptl_absorpt_coefficient_mu    0.107
_exptl_absorpt_correction_T_max  0.9726
_exptl_absorpt_correction_T_min  0.9403
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs, (Sheldrick 2001)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.431
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rod
_exptl_crystal_F_000             1200
_exptl_crystal_size_max          0.58
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.748
_refine_diff_density_min         -0.286
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.056
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     401
_refine_ls_number_reflns         6093
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.056
_refine_ls_R_factor_all          0.0786
_refine_ls_R_factor_gt           0.0687
_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^)+(0.0881P)^2^+1.9503P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1771
_refine_ls_wR_factor_ref         0.1849
_reflns_number_gt                5134
_reflns_number_total             6093
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol2011083_si_002.cif
_cod_data_source_block           a136
_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 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'Not Measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               1502241