Chromium(iii) stars and butterflies: synthesis, structural and magnetic studies of tetrametallic clusters.
Batchelor, Luke J.; Sander, Mario; Tuna, Floriana; Helliwell, Madeleine; Moro, Fabrizio; van Slageren, Joris; Burzurí, Enrique; Montero, Oscar; Evangelisti, Marco; Luis, Fernando; McInnes, Eric J. L.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 5278–5284; doi:10.1039/c1dt10172b

data_7015856
_publ_section_title
;
 Chromium(iii) stars and butterflies: synthesis, structural and
 magnetic studies of tetrametallic clusters.
;
_journal_issue                   19
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5278
_journal_page_last               5284
_journal_paper_doi               10.1039/c1dt10172b
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety
'(C66 H94 Cl6 Cr4 N6 O6), 4(C2 H3 N), 0.5(C3H6O), 0.5(H2O)'
_chemical_formula_sum            'C75.5 H110 Cl6 Cr4 N10 O7'
_chemical_formula_weight         1690.43
_chemical_name_common
'[Cr4(tmp)2(t-bu-bpy)3Cl6],4MeCN,0.5Me2CO,0.5H2O'
_chemical_name_systematic
;
?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                60.4850(10)
_cell_angle_beta                 74.5300(10)
_cell_angle_gamma                74.9500(10)
_cell_formula_units_Z            2
_cell_length_a                   13.9679(9)
_cell_length_b                   19.2804(12)
_cell_length_c                   19.5271(17)
_cell_measurement_reflns_used    6447
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.329
_cell_measurement_theta_min      2.190
_cell_volume                     4358.7(5)
_computing_cell_refinement       'Bruker XSCANS'
_computing_data_collection       'Bruker XSCANS'
_computing_data_reduction        'Bruker SHELXTL'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_diffrn_measurement_device_type  '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  0.0240
_diffrn_reflns_av_sigmaI/netI    0.0377
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            35126
_diffrn_reflns_theta_full        26.37
_diffrn_reflns_theta_max         26.37
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    0.723
_exptl_absorpt_correction_T_max  0.603
_exptl_absorpt_correction_T_min  0.428
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            GREEN
_exptl_crystal_density_diffrn    1.288
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       BLOCK
_exptl_crystal_F_000             1774
_exptl_crystal_size_max          0.9
_exptl_crystal_size_mid          0.7
_exptl_crystal_size_min          0.5
_refine_diff_density_max         1.227
_refine_diff_density_min         -0.637
_refine_diff_density_rms         0.101
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1038
_refine_ls_number_reflns         17589
_refine_ls_number_restraints     459
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0583
_refine_ls_R_factor_gt           0.0495
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0818P)^2^+8.1476P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1430
_refine_ls_wR_factor_ref         0.1496
_reflns_number_gt                14993
_reflns_number_total             17589
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1dt10172b.txt
_cod_data_source_block           cr4_4
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'TRICLINIC' changed to 'triclinic'
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 1555 2011-01-17 13:19:09Z saulius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        'C75.50 H110 Cl6 Cr4 N10 O7'
_cod_database_code               7015856