Neutral Cu~4~N~12~ and Ag~4~N~12~ metallacycles with a para-cyclophane framework assembled from copper(I) and silver(I) pyrazolates and pyridazine.
Dias, H. V. Rasika; Diyabalanage, Himashinie V. K.; Gamage, Chammi S. Palehepitiya; Chemical Communications (Cambridge, United Kingdom)  (2005) 1619–1621; doi:10.1039/b418306a

data_1100694
_publ_section_title
;
 Neutral Cu~4~N~12~ and Ag~4~N~12~ metallacycles with a para-cyclophane
 framework assembled from copper(I) and silver(I) pyrazolates and
 pyridazine.
;
_journal_coden_ASTM              CHCOFS
_journal_issue                   12
_journal_name_full
;
 Chemical Communications (Cambridge, United Kingdom)
;
_journal_page_first              1619
_journal_page_last               1621
_journal_paper_doi               10.1039/b418306a
_journal_year                    2005
_chemical_formula_sum            'C28 H12 Ag4 F24 N12'
_chemical_formula_weight         1403.98
_chemical_name_common            ((3,5-(CF3)2PzAg)4(C4H4N2)2)
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 104.477(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.142(2)
_cell_length_b                   22.807(3)
_cell_length_c                   10.0462(12)
_cell_measurement_temperature    101(2)
_cell_volume                     4024.7(8)
_diffrn_ambient_temperature      101(2)
_diffrn_measurement_device_type  'Bruker P4'
_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  0.0245
_diffrn_reflns_av_sigmaI/netI    0.0247
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       27
_diffrn_reflns_limit_k_min       -27
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            22956
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.16
_exptl_absorpt_coefficient_mu    2.071
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    2.317
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2672
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.28
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     613
_refine_ls_number_reflns         6991
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0329
_refine_ls_R_factor_gt           0.0298
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0430P)^2^+7.1648P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0769
_refine_ls_wR_factor_ref         0.0788
_reflns_number_gt                6417
_reflns_number_total             6991
_reflns_threshold_expression     &gt;2sigma(I)
_cod_duplicate_entry             7100786
_cod_depositor_comments
;
 Adding additional information after consulting the original publication
 and the supplementary material.

 Antanas Vaitkus,
 2018-08-16

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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1100694