Further synthetic investigation of the general lanthanoid(iii) [Ln(iii)]/copper(ii)/pyridine-2,6-dimethanol/carboxylate reaction system: {CuLn} coordination clusters (Ln = Dy, Tb, Ho) and their yttrium(iii) analogue.
Dermitzaki, Despina; Raptopoulou, Catherine P.; Psycharis, Vassilis; Escuer, Albert; Perlepes, Spyros P.; Mayans, Julia; Stamatatos, Theocharis C.; Dalton transactions (Cambridge, England : 2003) 50 (2021) 240–251; doi:10.1039/d0dt03582c

data_7705814
_publ_section_title
;
 Further synthetic investigation of the general lanthanoid(iii)
 [Ln(iii)]/copper(ii)/pyridine-2,6-dimethanol/carboxylate reaction system:
 {CuLn} coordination clusters (Ln = Dy, Tb, Ho) and their yttrium(iii)
 analogue.
;
_journal_issue                   1
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              240
_journal_page_last               251
_journal_paper_doi               10.1039/d0dt03582c
_journal_volume                  50
_journal_year                    2021
_chemical_formula_moiety         'C~8~H~4~O~4~^2-^, 2(C~3~H~5~N~2~^+^)'
_chemical_formula_sum            'C14 H14 N4 O4'
_chemical_formula_weight         302.29
_chemical_melting_point          462.5(5)
_chemical_name_systematic        bis(Imidazolium)
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2020-10-15 deposited with the CCDC.	2020-11-25 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 114.017(8)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.6205(6)
_cell_length_b                   8.0817(4)
_cell_length_c                   9.8959(6)
_cell_measurement_reflns_used    3969
_cell_measurement_temperature    100.00(10)
_cell_measurement_theta_max      29.1320
_cell_measurement_theta_min      3.3660
_cell_volume                     702.79(8)
_computing_cell_refinement       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.46 (Rigaku OD, 2015)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia 2012)'
_computing_publication_material
;
WINGX (Farrugia, 2012), OLEX2 (Dolomanov et al., 2009) and PLATON
(Spek 2009)
;
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100.00(10)
_diffrn_detector_area_resol_mean 10.3991
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.912
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0306
_diffrn_reflns_av_unetI/netI     0.0212
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.912
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            9694
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.912
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         29.525
_diffrn_reflns_theta_min         2.490
_diffrn_source                   'micro-focus sealed X-ray tube'
_exptl_absorpt_coefficient_mu    0.108
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.69557
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.46 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.428
_exptl_crystal_description       block
_exptl_crystal_F_000             316
_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: methanol'
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.366
_refine_diff_density_min         -0.232
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.090
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     108
_refine_ls_number_reflns         1798
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.090
_refine_ls_R_factor_all          0.0448
_refine_ls_R_factor_gt           0.0373
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0348P)^2^+0.3854P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0886
_refine_ls_wR_factor_ref         0.0942
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1567
_reflns_number_total             1798
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d0dt03582c2.cif
_cod_data_source_block           shelx
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_chemical_melting_point' value '462-463 K' was changed to
'462.5(5)' -- the average value was taken and precision was
estimated.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 7705813--7705815.cif.
;
_cod_original_cell_volume        702.80(8)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7705814
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              58045