Large Spin-State Changes in Isostructural Cyanate- and Azide-Bridged Mn3IIIMn2II Single-Molecule Magnets
Patrick L. Feng; Casey J. Stephenson; Asma Ajmad; Gavin Ogawa; Enrique del Barco; David N. Hendrickson; Inorganic Chemistry 49 (2010) 1304–1306; doi:10.1021/ic902298y

data_4314900
_publ_contact_author_address
;
Department of Chemistry and Biochemistry
University of California-San Diego
La Jolla, CA 92093
USA
;
_publ_contact_author_email       dhendrickson@ucsd.edu
_publ_contact_author_name        'David N. Hendrickson'
_publ_section_title
;
 Large Spin-State Changes in Isostructural Cyanate- and Azide-Bridged
 Mn3IIIMn2II Single-Molecule Magnets
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1304
_journal_page_last               1306
_journal_paper_doi               10.1021/ic902298y
_journal_volume                  49
_journal_year                    2010
_chemical_formula_moiety         'C24 H21 Cl2 Mn5 N21 O7, 3(C8 H20 N)'
_chemical_formula_sum            'C48 H81 Cl2 Mn5 N24 O7'
_chemical_formula_weight         1451.91
_space_group_IT_number           161
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'R 3 -2"c'
_symmetry_space_group_name_H-M   'R 3 c :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            6
_cell_length_a                   13.6691(13)
_cell_length_b                   13.6691(13)
_cell_length_c                   60.259(6)
_cell_measurement_reflns_used    4137
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.60
_cell_measurement_theta_min      1.85
_cell_volume                     9750.6(16)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    Ortep-32
_computing_publication_material  WINGX
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.991
_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  0.0403
_diffrn_reflns_av_sigmaI/netI    0.0395
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       74
_diffrn_reflns_limit_l_min       -74
_diffrn_reflns_number            16687
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         26.60
_diffrn_reflns_theta_min         1.85
_exptl_absorpt_coefficient_mu    1.090
_exptl_absorpt_correction_T_max  0.9475
_exptl_absorpt_correction_T_min  0.8988
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.422
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       pyramid
_exptl_crystal_F_000             4152
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.128
_refine_diff_density_min         -0.474
_refine_diff_density_rms         0.091
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.012(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     288
_refine_ls_number_reflns         4137
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0665
_refine_ls_R_factor_gt           0.0589
_refine_ls_shift/su_max          0.128
_refine_ls_shift/su_mean         0.017
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1070P)^2^+18.6292P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1581
_refine_ls_wR_factor_ref         0.1625
_reflns_number_gt                3652
_reflns_number_total             4137
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic902298y_si_002_2.cif
_cod_data_source_block           2
_cod_original_cell_volume        9750.7(16)
_cod_original_sg_symbol_H-M      'R 3 c'
_cod_database_code               4314900