Synthesis, structural and magnetic studies of an isostructural family of mixed 3d/4f tetranuclear 'star' clusters.
Chilton, Nicholas F.; Langley, Stuart K.; Moubaraki, Boujemaa; Murray, Keith S.; Chemical communications (Cambridge, England) 46 (2010) 7787–7789; doi:10.1039/c0cc02642e

data_7112889
_publ_section_title
;
 Synthesis, structural and magnetic studies of an isostructural family of
 mixed 3d/4f tetranuclear 'star' clusters.
;
_journal_issue                   41
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              7787
_journal_page_last               7789
_journal_paper_doi               10.1039/c0cc02642e
_journal_volume                  46
_journal_year                    2010
_chemical_formula_moiety
;
C42 H66 Gd Mn3 N2 O18, C15 H21 Mn O6
;
_chemical_formula_sum            'C57 H87 Gd Mn4 N2 O24'
_chemical_formula_weight         1561.30
_chemical_name_systematic
;
?
;
_space_group_IT_number           163
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-P 3 2c'
_symmetry_space_group_name_H-M   'P -3 1 c'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             '9 November 2005'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            2
_cell_length_a                   15.9802(3)
_cell_length_b                   15.9802(3)
_cell_length_c                   15.4016(7)
_cell_measurement_reflns_used    3047
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      26.13
_cell_measurement_theta_min      2.55
_cell_volume                     3406.13(18)
_computing_cell_refinement       'Bruker Apex2 V2.0'
_computing_data_collection       'Bruker Apex2 V2.0'
_computing_data_reduction        'Bruker Apex2 V2.0'
_computing_molecular_graphics    X-SEED
_computing_publication_material  'XCIF V6.12 (BrukerAXS, 2001).'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.981
_diffrn_measurement_device_type  'APEX X8 Apex CCD'
_diffrn_measurement_method       'scans in phi and omega'
_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  0.0558
_diffrn_reflns_av_sigmaI/netI    0.0491
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            15439
_diffrn_reflns_theta_full        30.56
_diffrn_reflns_theta_max         30.56
_diffrn_reflns_theta_min         2.94
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.756
_exptl_absorpt_correction_T_max  0.839
_exptl_absorpt_correction_T_min  0.596
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.522
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       hexagonal
_exptl_crystal_F_000             1598
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.1
_refine_diff_density_max         1.271
_refine_diff_density_min         -0.695
_refine_diff_density_rms         0.104
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     138
_refine_ls_number_reflns         3432
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0580
_refine_ls_R_factor_gt           0.0443
_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^)+(0.0542P)^2^+4.5602P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1061
_refine_ls_wR_factor_ref         0.1136
_reflns_number_gt                2867
_reflns_number_total             3432
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0cc02642e.txt
_cod_data_source_block           1_Mn3Gdfinal
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal'
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      P-31c
_cod_database_code               7112889