Tale of a Twist: Magnetic and Optical Switching in Copper(II) Semiquinone Complexes
Pratik Verma; John Weir; Liviu Mirica; T. Daniel P. Stack; Inorganic Chemistry 50 (2011) 9816–9825; doi:10.1021/ic200958g

data_4326488
_publ_contact_author_address
'Department of Chemistry, Stanford University'
_publ_contact_author_email       pratkv@stanford.edu
_publ_contact_author_name        'Pratik Verma'
_publ_section_title
;
 Tale of a Twist: Magnetic and Optical Switching in Copper(II) Semiquinone
 Complexes
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9816
_journal_page_last               9825
_journal_paper_doi               10.1021/ic200958g
_journal_volume                  50
_journal_year                    2011
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C28 H50 Cu N2 O3, F6 Sb'
_chemical_formula_sum            'C28 H50 Cu F6 N2 O3 Sb'
_chemical_formula_weight         761.99
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_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                   17.9232(17)
_cell_length_b                   14.6868(14)
_cell_length_c                   12.8923(13)
_cell_measurement_reflns_used    9896
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.12
_cell_measurement_theta_min      2.39
_cell_volume                     3393.7(6)
_computing_cell_refinement       'Bruker SAINT v7.53A'
_computing_data_collection       'Bruker APEX-II v2008-6'
_computing_data_reduction        'Bruker SAINT v7.53A'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II'
_diffrn_measurement_method       \w/2\q-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  0.0371
_diffrn_reflns_av_sigmaI/netI    0.0346
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            37095
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.27
_exptl_absorpt_coefficient_mu    1.485
_exptl_absorpt_correction_T_max  0.8904
_exptl_absorpt_correction_T_min  0.8304
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'Sheldrick, 2008'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.491
_exptl_crystal_description       block
_exptl_crystal_F_000             1560
_exptl_crystal_size_max          0.13
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.833
_refine_diff_density_min         -0.494
_refine_diff_density_rms         0.059
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.025(11)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     380
_refine_ls_number_reflns         8394
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0313
_refine_ls_R_factor_gt           0.0277
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0321P)^2^+0.5926P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0669
_refine_ls_wR_factor_ref         0.0688
_reflns_number_gt                7692
_reflns_number_total             8394
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic200958g_si_004.cif
_cod_data_source_block           stanu041
_cod_database_code               4326488