Highly-thermostable lanthanide‒organic coordination frameworks with N-protonated 2,6-dihydroxypyridine-4-carboxylate exhibiting unusual 3-D mixed-connected network topology
Fang, Shao-Ming; Hu, Min; Jia, Li-Ran; Wang, Cong; Zhang, Qiang; Ma, Song-Tao; Du, Miao; Liu, Chun-Sen; CrystEngComm 13 (2011) 6555–; doi:10.1039/c1ce05465a

data_7206620
_publ_section_title
;
 Highly-thermostable lanthanide--organic coordination frameworks with
 N-protonated 2,6-dihydroxypyridine-4-carboxylate exhibiting unusual 3-D
 mixed-connected network topology
;
_journal_issue                   21
_journal_name_full               CrystEngComm
_journal_page_first              6555
_journal_paper_doi               10.1039/c1ce05465a
_journal_volume                  13
_journal_year                    2011
_chemical_formula_sum            'C18 H9 N3 O12 Sm2'
_chemical_formula_weight         760.00
_chemical_name_systematic
;
?
;
_space_group_IT_number           13
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yc'
_symmetry_space_group_name_H-M   'P 1 2/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                 108.791(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.5238(2)
_cell_length_b                   7.6246(2)
_cell_length_c                   19.2614(7)
_cell_measurement_reflns_used    1850
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      26.3120
_cell_measurement_theta_min      3.1168
_cell_volume                     907.02(5)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'SMART (Bruker, 2007)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \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  0.0249
_diffrn_reflns_av_sigmaI/netI    0.0308
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       5
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            3195
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.30
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    6.496
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.95487
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            'dark yellow'
_exptl_crystal_density_diffrn    2.783
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             716
_exptl_crystal_size_max          0.19
_exptl_crystal_size_mid          0.17
_exptl_crystal_size_min          0.13
_refine_diff_density_max         1.630
_refine_diff_density_min         -0.699
_refine_diff_density_rms         0.151
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.068
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     160
_refine_ls_number_reflns         1591
_refine_ls_number_restraints     6
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0313
_refine_ls_R_factor_gt           0.0259
_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^)+(0.0368P)^2^+0.5270P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0604
_refine_ls_wR_factor_ref         0.0628
_reflns_number_gt                1421
_reflns_number_total             1591
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c1ce05465a.txt
_cod_data_source_block           4'
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'NONE' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2/c
_cod_database_code               7206620