Unprecedented three-dimensional hydrogen-bonded hex topological chiral lanthanide‒organic frameworks built from an achiral ligand
Qin, Tao; Feng, Zhe; Yang, Jie; Shen, Xuan; Zhu, Dunru; Acta Crystallographica Section C 74 (2018) –; doi:10.1107/S205322961801313X

data_2021263
_publ_section_title
;
 Unprecedented three-dimensional hydrogen-bonded hex topological chiral
 lanthanide--organic frameworks built from an achiral ligand
;
_journal_coeditor_code           LF3080
_journal_issue                   11
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first
;
;
_journal_paper_doi               10.1107/S205322961801313X
_journal_volume                  74
_journal_year                    2018
_chemical_formula_iupac          '[Eu (C12 H7 N2 O4)3 (H2 O)2]'
_chemical_formula_moiety         'C36 H25 Eu N6 O14'
_chemical_formula_sum            'C36 H25 Eu N6 O14'
_chemical_formula_weight         917.58
_chemical_name_systematic
Poly[diaquatris[\m~2~-3-nitro-4-(pyridin-4-yl)benzoato-\k^2^<i>O</i>:<i>O</i>']europium(III)]
_space_group_IT_number           170
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_Hall  'P 65'
_symmetry_space_group_name_H-M   'P 65'
_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            6
_cell_length_a                   15.1172(10)
_cell_length_b                   15.1172(10)
_cell_length_c                   28.034(4)
_cell_measurement_reflns_used    9989
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.9871
_cell_measurement_theta_min      2.6780
_cell_volume                     5548.3(9)
_computing_cell_refinement
;
SAINT (Bruker, 2005)
;
_computing_data_collection
;
APEX2 (Bruker, 2005)
;
_computing_data_reduction
;
SAINT (Bruker, 2005)
;
_computing_molecular_graphics
;
SHELXTL (Sheldrick, 2008)
;
_computing_publication_material
;
SHELXTL (Sheldrick, 2008)
;
_computing_structure_refinement
;
SHELXL97 (Sheldrick, 2008)
;
_computing_structure_solution
;
SHELXS97 (Sheldrick, 2008)
;
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_diffrn_measurement_method       '\w 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  0.0518
_diffrn_reflns_av_sigmaI/netI    0.0433
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       32
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            41150
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         1.56
_exptl_absorpt_coefficient_mu    1.774
_exptl_absorpt_correction_T_max  0.8083
_exptl_absorpt_correction_T_min  0.7417
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(SADABS; Sheldrick, 2003)
;
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.648
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rodlike
_exptl_crystal_F_000             2748
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.14
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.711
_refine_diff_density_min         -0.489
_refine_ls_abs_structure_details
;
Flack (1983), 3261 Friedel pairs
;
_refine_ls_abs_structure_Flack   -0.008(14)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.061
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     585
_refine_ls_number_reflns         6971
_refine_ls_number_restraints     161
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0412
_refine_ls_R_factor_gt           0.0339
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0473P)^2^+1.6277P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0825
_refine_ls_wR_factor_ref         0.0851
_reflns_number_gt                6247
_reflns_number_total             6971
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            lf3080sup1.cif
_cod_data_source_block           1502111
_cod_database_code               2021263
_cod_database_fobs_code 2021263