A Homologous Series of First-Row Transition-Metal Complexes of 2,2'-Bipyridine and their Ligand Radical Derivatives: Trends in Structure, Magnetism, and Bonding
Mark Irwin; Laurence R. Doyle; Tobias Krämer; Radovan Herchel; John E. McGrady; Jose M. Goicoechea; Inorganic Chemistry 51 (2012) 12301–12312; doi:10.1021/ic301587f

data_4331045
_publ_contact_author
;
 Dr. J. M. Goicoechea           
 Chemistry Research Laboratory
 University of Oxford
 Mansfield Road
 Oxford
 OX1 3TA
 UK
;
_publ_contact_author_email       jose.goicoechea@chem.ox.ac.uk
_publ_contact_author_fax         '+44 1865 272690'
_publ_contact_author_phone       '+44 1865 275961'
_publ_section_title
;
 A Homologous Series of First-Row Transition-Metal Complexes of
 2,2'-Bipyridine and their Ligand Radical Derivatives: Trends in
 Structure, Magnetism, and Bonding
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              12301
_journal_page_last               12312
_journal_paper_doi               10.1021/ic301587f
_journal_volume                  51
_journal_year                    2012
_chemical_formula_moiety         'C28 H30 N2 Ni, C18 H36 K N2 O6'
_chemical_formula_sum            'C46 H66 K N4 Ni O6'
_chemical_formula_weight         868.84
_chemical_name_systematic
; 
[K(2,2,2-crypt)][Ni(2,2'-bipy)(Mes)2]
;
_space_group_IT_number           96
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'P 4nw 2abw'
_symmetry_space_group_name_H-M   'P 43 21 2'
_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                   12.9305(2)
_cell_length_b                   12.9305(2)
_cell_length_c                   27.1526(8)
_cell_measurement_reflns_used    71776
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.485
_cell_measurement_theta_min      5.097
_cell_volume                     4539.86(17)
_computing_cell_refinement
;
KappaCCD software "DENZO" (Otwinowski & Minor, 1996)
;
_computing_data_collection
;
KappaCCD software "Collect" (Nonius, 2000)
;
_computing_data_reduction
;
KappaCCD software "DENZO" (Otwinowski & Minor, 1996)
;
_computing_molecular_graphics    'WinGX (Farrugia, 2005)'
_computing_publication_material  'XCIF (Sheldrick, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method       '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  0.0228
_diffrn_reflns_av_sigmaI/netI    0.0317
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -35
_diffrn_reflns_number            10334
_diffrn_reflns_theta_full        27.54
_diffrn_reflns_theta_max         27.54
_diffrn_reflns_theta_min         5.15
_exptl_absorpt_coefficient_mu    0.569
_exptl_absorpt_correction_T_max  0.8946
_exptl_absorpt_correction_T_min  0.8042
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.271
_exptl_crystal_description       block
_exptl_crystal_F_000             1860
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.277
_refine_diff_density_min         -0.174
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details 'Flack (1983), 2167 Friedel pairs'
_refine_ls_abs_structure_Flack   -0.006(12)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     263
_refine_ls_number_reflns         5176
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0423
_refine_ls_R_factor_gt           0.0338
_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^)+(0.0431P)^2^+0.9940P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0798
_refine_ls_wR_factor_ref         0.0839
_reflns_number_gt                4557
_reflns_number_total             5176
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ic301587f_si_002_8.cif
_cod_data_source_block           5-
_cod_database_code               4331045