Double half-cubane copper(II) complexes available from copper(II) 1,1,1,5,5,5-hexafluoropentane-2,4-dionate dissolved in formamides.
Morishita, Yasuhiko; Kogane, Tamizo; Nogami, Takashi; Ishida, Takayuki; Dalton transactions (Cambridge, England : 2003)  (2006) 4438–4443; doi:10.1039/b609128h

data_7007692
_publ_section_title
;
 Double half-cubane copper(II) complexes available from copper(II)
 1,1,1,5,5,5-hexafluoropentane-2,4-dionate dissolved in formamides.
;
_journal_issue                   37
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4438
_journal_page_last               4443
_journal_paper_doi               10.1039/b609128h
_journal_year                    2006
_chemical_formula_moiety         'C40 H52 Cu4 F24 N4 O16 '
_chemical_formula_sum            'C40 H52 Cu4 F24 N4 O16'
_chemical_formula_weight         1555.01
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90.0000
_cell_angle_beta                 93.4866(12)
_cell_angle_gamma                90.0000
_cell_formula_units_Z            2
_cell_length_a                   10.1392(4)
_cell_length_b                   22.3013(12)
_cell_length_c                   12.6048(5)
_cell_measurement_reflns_used    65996
_cell_measurement_temperature    100(1)
_cell_measurement_theta_max      25.3
_cell_measurement_theta_min      1.6
_cell_volume                     2844.9(2)
_computing_cell_refinement       PROCESS-AUTO
_computing_data_collection       PROCESS-AUTO
_computing_data_reduction        CrystalStructure
_computing_publication_material  'CrystalStructure 3.7.0'
_computing_structure_refinement  CRYSTALS
_computing_structure_solution    SIR92
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       \w
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.051
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            48806
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_exptl_absorpt_coefficient_mu    1.620
_exptl_absorpt_correction_T_max  0.576
_exptl_absorpt_correction_T_min  0.321
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
;
Higashi, T. (1999). Program for Absorption Correction.
Rigaku Corporation, Tokyo, Japan.
;
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.815
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             1560.00
_exptl_crystal_size_max          0.80
_exptl_crystal_size_mid          0.65
_exptl_crystal_size_min          0.34
_refine_diff_density_max         1.03
_refine_diff_density_min         -0.85
_refine_ls_extinction_coef       907(37)
_refine_ls_extinction_method
'Larson (1970) Crystallographic Computing eq. 22'
_refine_ls_goodness_of_fit_ref   1.034
_refine_ls_hydrogen_treatment    refall
_refine_ls_number_parameters     424
_refine_ls_number_reflns         6512
_refine_ls_R_factor_gt           0.0398
_refine_ls_shift/su_max          0.0000
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 1/[0.0010Fo^2^ + 3.0000\s(Fo^2^)]'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0572
_reflns_number_gt                5179
_reflns_number_total             6512
_reflns_threshold_expression     F^2^>2.0\s(F^2^)
_cod_data_source_file            b609128h.txt
_cod_data_source_block           '_[Cu4(ttpt)2(tfa)2(def)4]'
_cod_original_formula_sum        'C40 H52 Cu4 F24 N4 O16 '
_cod_database_code               7007692