Syntheses, structures and properties of 5-azotetrazolyl salicylic acid and its dilanthanide complexes.
Chen, Wen-Bin; Li, Zhi-Xin; Yu, Xin-Wei; Yang, Meng; Qiu, Yan-Xuan; Dong, Wen; Sun, Ya-Qiu; Dalton transactions (Cambridge, England : 2003) 43 (2014) 9090–9097; doi:10.1039/c4dt00278d

data_7030851
_publ_section_title
;
 Syntheses, structures and properties of 5-azotetrazolyl salicylic acid
 and its dilanthanide complexes.
;
_journal_issue                   24
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9090
_journal_page_last               9097
_journal_paper_doi               10.1039/c4dt00278d
_journal_volume                  43
_journal_year                    2014
_chemical_formula_sum            'C8 H8 N6 O4'
_chemical_formula_weight         252.20
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 91.158(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   3.9726(2)
_cell_length_b                   10.6370(6)
_cell_length_c                   24.5982(13)
_cell_measurement_reflns_used    2958
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.00
_cell_measurement_theta_min      0.00
_cell_volume                     1039.22(10)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SMART'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean none
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega 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  0.0318
_diffrn_reflns_av_unetI/netI     0.0302
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            6711
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.66
_diffrn_standards_decay_%        none
_diffrn_standards_interval_count none
_diffrn_standards_interval_time  none
_diffrn_standards_number         none
_exptl_absorpt_coefficient_mu    0.133
_exptl_absorpt_correction_T_max  0.980
_exptl_absorpt_correction_T_min  0.962
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.612
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             520.0
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.516
_refine_diff_density_min         -0.488
_refine_diff_density_rms         0.060
_refine_ls_extinction_coef       0.015(3)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     174
_refine_ls_number_reflns         1835
_refine_ls_number_restraints     5
_refine_ls_restrained_S_all      1.095
_refine_ls_R_factor_all          0.0710
_refine_ls_R_factor_gt           0.0561
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0890P)^2^+0.6598P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1563
_refine_ls_wR_factor_ref         0.1663
_reflns_number_gt                1436
_reflns_number_total             1835
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4dt00278d2.cif
_cod_data_source_block           1
_cod_depositor_comments
;Adding full bibliography for 7030851--7030857.cif.

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' 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_Hall     -P2yn
_cod_original_sg_symbol_H-M      P21/n
_cod_original_formula_sum        'C8 H8 N6 O4 '
_cod_database_code               7030851