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_4115819
_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            'C12 H20 O4'
_chemical_formula_weight         228.28
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 110.69(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.962(2)
_cell_length_b                   19.376(6)
_cell_length_c                   8.053(4)
_cell_measurement_temperature    293(2)
_cell_volume                     1162.2(8)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    Sir97
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_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  0.0161
_diffrn_reflns_av_sigmaI/netI    0.0392
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       0
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            2444
_diffrn_reflns_theta_full        26.28
_diffrn_reflns_theta_max         26.28
_diffrn_reflns_theta_min         2.73
_exptl_absorpt_coefficient_mu    0.097
_exptl_crystal_density_diffrn    1.305
_exptl_crystal_F_000             496
_refine_diff_density_max         0.224
_refine_diff_density_min         -0.205
_refine_diff_density_rms         0.038
_refine_ls_extinction_coef       0.004(2)
_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   1.015
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     149
_refine_ls_number_reflns         2284
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.015
_refine_ls_R_factor_all          0.0824
_refine_ls_R_factor_gt           0.0423
_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^)+(0.0482P)^2^+0.3898P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1000
_refine_ls_wR_factor_ref         0.1137
_reflns_number_gt                1554
_reflns_number_total             2284
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja011028t_15.cif
_cod_data_source_block           1p
_cod_original_cell_volume        1162.2(7)
_cod_database_code               4115819