Synthetic, structural, electrochemical and solvent extraction studies of neutral trinuclear Co(ii), Ni(ii), Cu(ii) and Zn(ii) metallocycles and tetrahedral tetranuclear Fe(iii) species incorporating 1,4-aryl-linked bis-β-diketonato ligands
Clegg, Jack K.; Bray, David J.; Gloe, Kerstin; Gloe, Karsten; Jolliffe, Katrina A.; Lawrance, Geoffrey A.; Lindoy, Leonard F.; Meehan, George V.; Wenzel, Marco; Dalton Transactions  (2008) 1331–1340; doi:10.1039/b716653b

data_7003487
_publ_section_title
;
 Synthetic, structural, electrochemical and solvent extraction studies
 of neutral trinuclear Co(ii), Ni(ii), Cu(ii) and Zn(ii) metallocycles
 and tetrahedral tetranuclear Fe(iii) species incorporating
 1,4-aryl-linked bis-\b-diketonato ligands
;
_journal_issue                   10
_journal_name_full               'Dalton Transactions'
_journal_page_first              1331
_journal_page_last               1340
_journal_paper_doi               10.1039/b716653b
_journal_year                    2008
_chemical_formula_moiety         'C20 H26 O4'
_chemical_formula_sum            'C20 H26 O4'
_chemical_formula_weight         330.41
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            4
_cell_length_a                   10.232(3)
_cell_length_b                   10.158(3)
_cell_length_c                   17.738(5)
_cell_measurement_reflns_used    2585
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      23.016
_cell_measurement_theta_min      2.296
_cell_volume                     1843.6(9)
_computing_cell_refinement       'SAINT (Bruker, 1995)'
_computing_data_collection       'SMART (Bruker, 1995)'
_computing_data_reduction        'SAINT and XPREP (Bruker, 1995)'
_computing_molecular_graphics
'ORTEP-3 (Farrugia, 1997), WINGX-32 (Farrugia, 1999)'
_computing_publication_material  'enCIFer 1.0 (CCDC, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare, et. al. 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'BRUKER SMART 1000 CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0612
_diffrn_reflns_av_sigmaI/netI    0.0427
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            16191
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.29
_diffrn_reflns_theta_min         2.30
_diffrn_standards_decay_%        0.02
_diffrn_standards_number         46
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.864765
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2003)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.190
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.600
_exptl_crystal_size_mid          0.370
_exptl_crystal_size_min          0.032
_refine_diff_density_max         0.234
_refine_diff_density_min         -0.193
_refine_diff_density_rms         0.041
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     115
_refine_ls_number_reflns         2229
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0969
_refine_ls_R_factor_gt           0.0498
_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^)+(0.0638P)^2^+0.4206P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1130
_refine_ls_wR_factor_ref         0.1333
_reflns_number_gt                1380
_reflns_number_total             2229
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b716653b.txt
_cod_data_source_block           lj112sad
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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        1843.8(9)
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7003487