Dinuclear and tetranuclear copper(II) complexes with bridging (N‒N) diazine ligands: variable magnetic exchange topologies †
Xu, Zhiqiang; Thompson, Laurence K.; Matthews, Craig J.; Miller, David O.; Goeta, Andrés E.; Wilson, Claire; Howard, Judith A. K.; Ohba, Masaaki; Ōkawa, Hisashi; Journal of the Chemical Society, Dalton Transactions  (2000) 69–; doi:10.1039/a907390f

data_7008958
_publ_section_title
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 Dinuclear and tetranuclear copper(II) complexes with bridging (N--N)
 diazine ligands: variable magnetic exchange topologies&#x200A;&#x2020;
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_journal_issue                   1
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              69
_journal_paper_doi               10.1039/a907390f
_journal_year                    2000
_chemical_formula_sum            'C26 H31 Cu2 N14 O15'
_chemical_formula_weight         906.74
_chemical_name_systematic
; 

 ? 

;
_space_group_IT_number           9
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 127.43(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   20.938(4)
_cell_length_b                   14.887(3)
_cell_length_c                   14.372(3)
_cell_measurement_reflns_used    392
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      23.31
_cell_measurement_theta_min      13.71
_cell_volume                     3557.4(19)
_computing_cell_refinement       'SMART-NT V5.0 (Bruker, 1998)'
_computing_data_collection       'SMART-NT V5.0 (Bruker, 1998)'
_computing_data_reduction        'SAINT-NT V5.0 (Bruker, 1998)'
_computing_molecular_graphics    'SHELXTL V5.1 (Bruker, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.925
_diffrn_measured_fraction_theta_max 0.925
_diffrn_measurement_device_type  'Bruker SMART-CCD'
_diffrn_measurement_method       /w
_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  0.0191
_diffrn_reflns_av_sigmaI/netI    0.0293
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            21146
_diffrn_reflns_theta_full        30.46
_diffrn_reflns_theta_max         30.46
_diffrn_reflns_theta_min         2.45
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    1.286
_exptl_absorpt_correction_T_max  0.831
_exptl_absorpt_correction_T_min  0.594
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.695
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1856
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.44
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.531
_refine_diff_density_min         -0.442
_refine_diff_density_rms         0.064
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.253(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.203
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     639
_refine_ls_number_reflns         9330
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.202
_refine_ls_R_factor_all          0.0364
_refine_ls_R_factor_gt           0.0291
_refine_ls_shift/su_max          0.059
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0000P)^2^+5.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0605
_refine_ls_wR_factor_ref         0.0642
_reflns_number_gt                8445
_reflns_number_total             9330
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            a907390f.txt
_cod_data_source_block           x539
_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_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_cell_volume        3557.4(12)
_cod_original_sg_symbol_H-M      Cc
_cod_database_code               7008958