A magnetically isolated cuprate spin-ladder system: synthesis, structures, and magnetic properties.
Zhang, Xiao; Nishihara, Sadafumi; Nakano, Yuki; Yoshida, Erina; Kato, Chisato; Ren, Xiao-Ming; Maryunina, Kseniya Yu; Inoue, Katsuya; Dalton transactions (Cambridge, England : 2003) 43 (2014) 12974–; doi:10.1039/c4dt01746c

data_7031883
_publ_section_title
;
 A magnetically isolated cuprate spin-ladder system: synthesis,
 structures, and magnetic properties.
;
_journal_issue                   34
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              12974
_journal_paper_doi               10.1039/c4dt01746c
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C H18 Cu2 N6 O3, 2(Cl O4)'
_chemical_formula_sum            'C0.25 H4.5 Cl0.5 Cu0.5 N1.5 O2.75'
_chemical_formula_weight         122.05
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           55
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2 2ab'
_symmetry_space_group_name_H-M   'P b a m'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   9.277(3)
_cell_length_b                   17.304(6)
_cell_length_c                   4.7930(17)
_cell_measurement_reflns_used    1520
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      26.19
_cell_measurement_theta_min      2.49
_cell_volume                     769.4(5)
_computing_cell_refinement       'APEX2 (Bruker AXS, 2006)'
_computing_data_collection       'APEX2 (Bruker AXS, 2006)'
_computing_data_reduction        'SAINT (Bruker AXS, 2004)'
_computing_molecular_graphics
'Yadokari-XG 2009 (Wakita Nemoto et al., 2009)'
_computing_publication_material
'Yadokari-XG 2009 (Wakita Nemoto et al., 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 8.333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEXII 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  0.0969
_diffrn_reflns_av_sigmaI/netI    0.0812
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       5
_diffrn_reflns_limit_l_min       -5
_diffrn_reflns_number            3566
_diffrn_reflns_theta_full        26.27
_diffrn_reflns_theta_max         26.27
_diffrn_reflns_theta_min         2.35
_diffrn_standards_decay_%        0.0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    3.175
_exptl_absorpt_correction_T_max  0.7632
_exptl_absorpt_correction_T_min  0.2790
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS Sheldrick 1996'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    2.107
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             492
_exptl_crystal_size_max          0.54
_exptl_crystal_size_mid          0.09
_exptl_crystal_size_min          0.09
_refine_diff_density_max         1.213
_refine_diff_density_min         -1.045
_refine_diff_density_rms         0.206
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     82
_refine_ls_number_reflns         875
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0666
_refine_ls_R_factor_gt           0.0617
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0572P)^2^+8.2000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1509
_refine_ls_wR_factor_ref         0.1539
_reflns_number_gt                783
_reflns_number_total             875
_reflns_threshold_expression     >2sigma(I)
_cod_duplicate_entry             7031701
_cod_data_source_file            c4dt01746c2.cif
_cod_data_source_block           added_by_encifer
_cod_original_formula_sum        'C0.25 H4.50 Cl0.50 Cu0.50 N1.50 O2.75'
_cod_database_code               7031883