Experimental Fingerprints for Redox-Active Terpyridine in [Cr(tpy)2](PF6)n (n = 3-0), and the Remarkable Electronic Structure of [Cr(tpy)2]1-
Christopher C. Scarborough; Kyle M. Lancaster; Serena DeBeer; Thomas Weyhermüller; Stephen Sproules; Karl Wieghardt; Inorganic Chemistry 51 (2012) 3718–3732; doi:10.1021/ic2027219

data_4328679
_publ_section_title
;
 Experimental Fingerprints for Redox-Active Terpyridine in
 [Cr(tpy)2](PF6)n (n = 3-0), and the Remarkable Electronic Structure of
 [Cr(tpy)2]1-
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3718
_journal_page_last               3732
_journal_paper_doi               10.1021/ic2027219
_journal_volume                  51
_journal_year                    2012
_chemical_formula_moiety         'C30 H22 Cr N6, F6 P '
_chemical_formula_sum            'C30 H22 Cr F6 N6 P'
_chemical_formula_weight         663.51
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_block_code                WGT-CS-170-01
_audit_creation_date             2011-04-05
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 94.183(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.794(2)
_cell_length_b                   11.213(2)
_cell_length_c                   27.896(5)
_cell_measurement_reflns_used    9904
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      29.5797
_cell_measurement_theta_min      2.3330
_cell_volume                     2743.4(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 66.67
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker-AXS Kappa Mach3 APEX-II'
_diffrn_measurement_method       'CCD \f- and \w-scans'
_diffrn_radiation_monochromator  'Incoatec Helios mirrors'
_diffrn_radiation_source         '0.2 x 2mm^2^ focus rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0548
_diffrn_reflns_av_sigmaI/netI    0.0279
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -39
_diffrn_reflns_number            74293
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         30.00
_diffrn_reflns_theta_min         1.96
_exptl_absorpt_coefficient_mu    0.550
_exptl_absorpt_correction_T_max  0.97904
_exptl_absorpt_correction_T_min  0.94369
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details   'SADABS (Bruker AXS, 2008)'
_exptl_crystal_colour            violet
_exptl_crystal_density_diffrn    1.606
_exptl_crystal_description       prism
_exptl_crystal_F_000             1348
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.440
_refine_diff_density_min         -1.169
_refine_diff_density_rms         0.100
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.037
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     419
_refine_ls_number_reflns         8003
_refine_ls_number_restraints     342
_refine_ls_restrained_S_all      1.274
_refine_ls_R_factor_all          0.0845
_refine_ls_R_factor_gt           0.0611
_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^)+(0.0937P)^2^+5.6325P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1731
_refine_ls_wR_factor_ref         0.1936
_reflns_number_gt                5944
_reflns_number_total             8003
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic2027219_si_002_2.cif
_cod_data_source_block           3
_cod_original_sg_symbol_Hall     '-p 2ybc'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4328679