Spontaneous resolution of lanthanide coordination polymers with 2-hydroxypyrimidine-4,6-dicarboxylic acid
Gao, Ming-Juan; Yang, Ping; Cai, Bin; Dai, Jing-Wei; Wu, Jian-Zhong; Yu, Ying; CrystEngComm 14 (2012) 1264–; doi:10.1039/c1ce06090b

data_7207156
_publ_section_title
;
 Spontaneous resolution of lanthanide coordination polymers with
 2-hydroxypyrimidine-4,6-dicarboxylic acid
;
_journal_issue                   4
_journal_name_full               CrystEngComm
_journal_page_first              1264
_journal_paper_doi               10.1039/c1ce06090b
_journal_volume                  14
_journal_year                    2012
_chemical_formula_moiety
'C6 H5 Gd N2 O7, 1.18(H2 O), 0.34(O), 0.68(H)'
_chemical_formula_sum            'C6 H8.04 Gd N2 O8.52'
_chemical_formula_weight         401.73
_chemical_name_systematic
;
?
;
_space_group_IT_number           155
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'R 3 2"'
_symmetry_space_group_name_H-M   'R 3 2 :H'
_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                120.00
_cell_formula_units_Z            9
_cell_length_a                   12.4390(9)
_cell_length_b                   12.4390(9)
_cell_length_c                   19.6700(15)
_cell_measurement_reflns_used    3085
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      2.80
_cell_volume                     2635.8(3)
_computing_cell_refinement       'APEX2 (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'APEX2 (Bruker, 2004)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0284
_diffrn_reflns_av_sigmaI/netI    0.0269
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            4882
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         2.16
_exptl_absorpt_coefficient_mu    5.699
_exptl_absorpt_correction_T_max  0.8041
_exptl_absorpt_correction_T_min  0.3299
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2002)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    2.278
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1711.9
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.361
_refine_diff_density_min         -0.439
_refine_diff_density_rms         0.078
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.005(15)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     89
_refine_ls_number_reflns         1165
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0156
_refine_ls_R_factor_gt           0.0152
_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^)+(0.0149P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0338
_refine_ls_wR_factor_ref         0.0339
_reflns_number_gt                1149
_reflns_number_total             1165
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1ce06090b.txt
_cod_data_source_block           2b
_cod_original_sg_symbol_H-M      'R 3 2'
_cod_database_code               7207156