Anion Coordination in Metal−Organic Frameworks Functionalized with Urea Hydrogen-Bonding Groups
Custelcean, Radu; Moyer, Bruce A.; Bryantsev, Vyacheslav S.; Hay, Benjamin P.; Crystal Growth & Design 6 (2006) 555–; doi:10.1021/cg0505057

data_4504736
_publ_section_title
;
 Anion Coordination in Metal&#x2212;Organic Frameworks Functionalized with
 Urea Hydrogen-Bonding Groups
;
_journal_issue                   2
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              555
_journal_paper_doi               10.1021/cg0505057
_journal_volume                  6
_journal_year                    2006
_chemical_formula_sum            'C11 H14 N4 O3'
_chemical_formula_weight         250.26
_chemical_name_common            'BPU hydrate'
_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                 101.414(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.8552(10)
_cell_length_b                   19.584(3)
_cell_length_c                   9.2987(14)
_cell_measurement_temperature    173(2)
_cell_volume                     1223.7(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_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    0.0190
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -26
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            15035
_diffrn_reflns_theta_full        28.31
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_T_max  0.9909
_exptl_absorpt_correction_T_min  0.9368
_exptl_absorpt_correction_type   empirical
_exptl_crystal_density_diffrn    1.358
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             528
_exptl_crystal_size_max          0.65
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.347
_refine_diff_density_min         -0.251
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.291
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     188
_refine_ls_number_reflns         3035
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.291
_refine_ls_R_factor_all          0.0680
_refine_ls_R_factor_gt           0.0651
_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^)+(0.0362P)^2^+0.6445P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1386
_refine_ls_wR_factor_ref         0.1401
_reflns_number_gt                2916
_reflns_number_total             3035
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg0505057si20050928_052814.cif
_cod_data_source_block           c:\frames\079\work\p21c
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               4504736