Tubular Hydrogen-Bonded Networks Sustained by Water Molecules
Héctor Carrasco; Concepción Foces-Foces; Cirilo Pérez; Matías L. Rodríguez; Julio D. Martín; Journal of the American Chemical Society 123 (2001) 11970–11981; doi:10.1021/ja011028t

data_4115812
_publ_contact_author
;                                                                               
      C.Foce-Foces
      Instituto de Quimica-Fisica Rocasolano-CSIC                               
      Departamento de Cristalografia                                            
      Serrano 119                                                               
      E-28006 Madrid                                                            
      Spain                                                                     
;
_publ_contact_author_email       cfoces@iqfr.csic.es
_publ_contact_author_fax         '+34 1 5642431'
_publ_contact_author_phone       '+34 1 5619400'
_publ_section_title
;
 Tubular Hydrogen-Bonded Networks Sustained by Water Molecules
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11970
_journal_page_last               11981
_journal_paper_doi               10.1021/ja011028t
_journal_volume                  123
_journal_year                    2001
_chemical_formula_sum            'C30 H52 O8'
_chemical_formula_weight         540.72
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 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                   14.175(3)
_cell_length_b                   14.183(3)
_cell_length_c                   14.574(4)
_cell_measurement_temperature    293(2)
_cell_volume                     2930.0(12)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.933
_diffrn_measured_fraction_theta_max 0.933
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0422
_diffrn_reflns_av_sigmaI/netI    0.0323
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            19597
_diffrn_reflns_theta_full        28.99
_diffrn_reflns_theta_max         28.99
_diffrn_reflns_theta_min         1.44
_exptl_absorpt_coefficient_mu    0.087
_exptl_crystal_density_diffrn    1.226
_exptl_crystal_F_000             1184
_refine_diff_density_max         0.220
_refine_diff_density_min         -0.154
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0(10)
_refine_ls_extinction_coef       0.0000(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     344
_refine_ls_number_reflns         3782
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.067
_refine_ls_R_factor_all          0.0685
_refine_ls_R_factor_gt           0.0481
_refine_ls_shift/su_max          1.274
_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0598P)^2^+0.4647P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1095
_refine_ls_wR_factor_ref         0.1211
_reflns_number_gt                2936
_reflns_number_total             3782
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja011028t_07.cif
_cod_data_source_block           1G
_cod_original_sg_symbol_H-M      'P 21 21 21'
_cod_database_code               4115812