1,2,3-Triazolate-Bridged Tetradecametallic Transition Metal Clusters [M14(L)6O6(OMe)18X6] (M = FeIII, CrIII and VIII/IV) and Related Compounds: Ground-State Spins Ranging from S=0 to S=25 and Spin-Enhanced Magnetocaloric Effect
Rachel Shaw; Rebecca H. Laye; Leigh F. Jones; David M. Low; Caytie Talbot-Eeckelaers; Qiang Wei; Constantinos J. Milios; Simon Teat; Madeleine Helliwell; James Raftery; Marco Evangelisti; Marco Affronte; David Collison; Euan K. Brechin; Eric J. L. McInnes; Inorganic Chemistry 46 (2007) 4968–4978; doi:10.1021/ic070320k

data_4308252
_publ_section_title
;
1,2,3-Triazolate-Bridged Tetradecametallic Transition Metal Clusters
[M14(L)6O6(OMe)18X6] (M = FeIII, CrIII and VIII/IV) and Related Compounds:
Ground-State Spins Ranging from S=0 to S=25 and Spin-Enhanced
Magnetocaloric Effect
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4968
_journal_page_last               4978
_journal_paper_doi               10.1021/ic070320k
_journal_volume                  46
_journal_year                    2007
_chemical_formula_sum            'C120 H188 Cl20 Cr28 N36 O56'
_chemical_formula_weight         5196.06
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_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            2
_cell_length_a                   18.0588(5)
_cell_length_b                   19.8587(6)
_cell_length_c                   25.4792(8)
_cell_measurement_reflns_used    22130
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      31.9773
_cell_measurement_theta_min      2.5955
_cell_volume                     9137.5(5)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.29.2 (release 20-01-2006 CrysAlis171 .NET)
(compiled Jan 20 2006,12:36:28)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.29.2 (release 20-01-2006 CrysAlis171 .NET)
(compiled Jan 20 2006,12:36:28)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.29.2 (release 20-01-2006 CrysAlis171 .NET)
(compiled Jan 20 2006,12:36:28)
;
_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_detector_area_resol_mean 8.3367
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Oxford Diffraction XCalliber 2'
_diffrn_measurement_method       'phi and omega'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0373
_diffrn_reflns_av_sigmaI/netI    0.0303
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            66844
_diffrn_reflns_theta_full        26.38
_diffrn_reflns_theta_max         26.38
_diffrn_reflns_theta_min         3.15
_exptl_absorpt_coefficient_mu    1.966
_exptl_absorpt_correction_T_max  0.6945
_exptl_absorpt_correction_T_min  0.5069
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.889
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             5240
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.249
_refine_diff_density_min         -1.441
_refine_diff_density_rms         0.128
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     628
_refine_ls_number_reflns         9335
_refine_ls_number_restraints     38
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0903
_refine_ls_R_factor_gt           0.0542
_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^)+(0.0701P)^2^+55.1105P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1456
_refine_ls_wR_factor_ref         0.1693
_reflns_number_gt                6480
_reflns_number_total             9335
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic070320k-file003.cif
_cod_data_source_block           cr14
_cod_depositor_comments
;
 Removing the '_publ_author' data item since it was not found in the core
 CIF dictionary and the same information was already provided in the official
 bibliography data items. No information was lost by removing this data item.

 Antanas Vaitkus,
 2017-03-07
;
_cod_database_code               4308252