Novel 3D Alkali‒Lanthanide Heterometal‒Organic Frameworks with Pyrazine-2,3,5,6-tetracarboxylic Acid: Synthesis, Structure, and Magnetism
Zhang, Fengming; Yan, Pengfei; Zou, Xiaoyan; Zhang, Juwen; Hou, Guangfeng; Li, Guangming; Crystal Growth & Design 14 (2014) 2014–; doi:10.1021/cg5001254

data_4510465
_publ_section_title
;
 Novel 3D Alkali--Lanthanide Heterometal--Organic Frameworks with
 Pyrazine-2,3,5,6-tetracarboxylic Acid: Synthesis, Structure, and
 Magnetism
;
_journal_issue                   4
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              2014
_journal_paper_doi               10.1021/cg5001254
_journal_volume                  14
_journal_year                    2014
_chemical_formula_moiety         'C40 N10 O50 Yb5, 16(O), 5(K)'
_chemical_formula_sum            'C40 H52 K5 N10 O66 Yb5'
_chemical_formula_weight         2789.62
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                   15.0646(3)
_cell_length_b                   33.0834(8)
_cell_length_c                   14.4068(3)
_cell_measurement_reflns_used    5857
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.1031
_cell_measurement_theta_min      3.0782
_cell_volume                     7180.2(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 16.1954
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Xcalibur, Eos'
_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  0.0296
_diffrn_reflns_av_sigmaI/netI    0.0339
_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       39
_diffrn_reflns_limit_k_min       -38
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            22334
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    6.885
_exptl_absorpt_correction_T_max  0.5460
_exptl_absorpt_correction_T_min  0.4921
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.35.21 (release 20-01-2012 CrysAlis171 .NET)
(compiled Jan 23 2012,18:06:46)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            COLORLESS
_exptl_crystal_density_diffrn    2.581
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             5340
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.514
_refine_diff_density_min         -1.933
_refine_diff_density_rms         0.163
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.165
_refine_ls_matrix_type           full
_refine_ls_number_parameters     595
_refine_ls_number_reflns         6428
_refine_ls_number_restraints     30
_refine_ls_restrained_S_all      1.168
_refine_ls_R_factor_all          0.0565
_refine_ls_R_factor_gt           0.0466
_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^)+(0.0185P)^2^+92.3036P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0894
_refine_ls_wR_factor_ref         0.0936
_reflns_number_gt                5480
_reflns_number_total             6428
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg5001254_si_003.cif
_cod_data_source_block           Yb
_cod_database_code               4510465