Multi-component synthesis of trimetallic tetranuclear clusters [Cu(L)(H(2)O)](2)Ln(H(2)O)(2)Cr(C(2)O(4))(3).12H(2)O (H(2)L = 1,4,8,11-tetraazacyclotradecane-2,3-dione, Ln(3+) = Gd, Tb and Dy).
Kou, Hui-Zhong; Hu, Kong-Qiu; Zhao, Hao-Yan; Tang, Junkui; Cui, Ai-Li; Chemical communications (Cambridge, England) 46 (2010) 6533–6535; doi:10.1039/c0cc01628d

data_7112807
_publ_section_title
;
 Multi-component synthesis of trimetallic tetranuclear clusters
 [Cu(L)(H(2)O)](2)Ln(H(2)O)(2)Cr(C(2)O(4))(3).12H(2)O (H(2)L =
 1,4,8,11-tetraazacyclotradecane-2,3-dione, Ln(3+) = Gd, Tb and Dy).
;
_journal_issue                   35
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              6533
_journal_page_last               6535
_journal_paper_doi               10.1039/c0cc01628d
_journal_volume                  46
_journal_year                    2010
_chemical_formula_sum            'C26 H68 Cr Cu2 Gd N8 O32'
_chemical_formula_weight         1341.21
_chemical_name_systematic
;
?
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_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                 100.3810(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.7457(7)
_cell_length_b                   16.3391(7)
_cell_length_c                   16.9184(6)
_cell_measurement_reflns_used    4856
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.47
_cell_measurement_theta_min      3.12
_cell_volume                     5097.1(3)
_computing_cell_refinement       'crystalstructure 3.6.0 (Rigaku, 2004)'
_computing_data_collection       'crystalstructure 3.6.0 (Rigaku, 2004)'
_computing_data_reduction        'SHELXL-97 (Sheldrick, 1997)'
_computing_molecular_graphics    'XP (Sheldrick, 1998)'
_computing_publication_material  'XP (Sheldrick, 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0.77
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Rigaku R-AXIS RAPID IP'
_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  0.0404
_diffrn_reflns_av_sigmaI/netI    0.0347
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            23699
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.12
_exptl_absorpt_coefficient_mu    2.415
_exptl_absorpt_correction_T_max  0.830
_exptl_absorpt_correction_T_min  0.642
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'ABSCOR; Higashi, 1995'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.748
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             2728
_exptl_crystal_size_max          0.21
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.820
_refine_diff_density_min         -0.890
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.021
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     317
_refine_ls_number_reflns         5799
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.021
_refine_ls_R_factor_all          0.0465
_refine_ls_R_factor_gt           0.0357
_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^)+(0.0557P)^2^+16.0878P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0908
_refine_ls_wR_factor_ref         0.1056
_reflns_number_gt                4856
_reflns_number_total             5799
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0cc01628d.txt
_cod_data_source_block           Cu2GdCr
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'Empirical' changed to
'empirical' according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7112807