Observation of Ferromagnetic Exchange, Spin Crossover, Reductively Induced Oxidation, and Field-Induced Slow Magnetic Relaxation in Monomeric Cobalt Nitroxides
Ian A. Gass; Subrata Tewary; Ayman Nafady; Nicholas F. Chilton; Christopher J. Gartshore; Mousa Asadi; David W. Lupton; Boujemaa Moubaraki; Alan M. Bond; John F. Boas; Si-Xuan Guo; Gopalan Rajaraman; Keith S. Murray; Inorganic Chemistry 52 (2013) 7557–7572; doi:10.1021/ic400565h

data_4335349
_publ_contact_author_address
; School of Chemistry, 171 
  Monash university, 
  Vic 3800, 
  Australia
;
_publ_contact_author_email       Keith.murray@sci.monash.edu.au
_publ_contact_author_fax         +61-3-9905-4597
_publ_contact_author_name        'Keith. S. Murray'
_publ_contact_author_phone       +61-3-9905-4512
_publ_section_title
;
 Observation of Ferromagnetic Exchange, Spin Crossover, Reductively
 Induced Oxidation, and Field-Induced Slow Magnetic Relaxation in
 Monomeric Cobalt Nitroxides
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              7557
_journal_page_last               7572
_journal_paper_doi               10.1021/ic400565h
_journal_volume                  52
_journal_year                    2013
_chemical_formula_moiety
;
C30 H32 Co N6 O4, 2(N O3)
;
_chemical_formula_sum            'C30 H32 Co N8 O10'
_chemical_formula_weight         723.57
_space_group_IT_number           14
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_audit_creation_date             '9 November 2005'
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_cell_angle_alpha                90.00
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_cell_angle_gamma                90.00
_cell_formula_units_Z            2
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_cell_measurement_temperature    273(2)
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_cell_measurement_theta_min      2.1929
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CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_computing_data_collection
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_computing_data_reduction
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
;
_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      273(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Oxford Gemini Ultra'
_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  0.0233
_diffrn_reflns_av_sigmaI/netI    0.0338
_diffrn_reflns_limit_h_max       6
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_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            8459
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         2.20
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.615
_exptl_absorpt_correction_T_max  0.884
_exptl_absorpt_correction_T_min  0.863
_exptl_absorpt_correction_type   multi-scan
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;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.36 (release 02-08-2010 CrysAlis171 .NET)
(compiled Aug  2 2010,13:00:58)
empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.523
_exptl_crystal_description       block
_exptl_crystal_F_000             750
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.580
_refine_diff_density_min         -0.478
_refine_diff_density_rms         0.059
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     225
_refine_ls_number_reflns         3623
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0600
_refine_ls_R_factor_gt           0.0444
_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^)+(0.0569P)^2^+0.9992P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1143
_refine_ls_wR_factor_ref         0.1247
_reflns_number_gt                2827
_reflns_number_total             3623
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic400565h_si_001_2.cif
_cod_data_source_block           complex1273K
_cod_original_cell_volume        1578.33(13)
_cod_database_code               4335349