Even-numbered metal chain complexes: synthesis, characterization, and DFT analysis of [Ni4(mu4-Tsdpda)4(H2O)2] (Tsdpda2- = N-(p-toluenesulfonyl)dipyridyldiamido), [Ni4(mu4-Tsdpda)4]+, and related Ni4 string complexes.
López, Xavier; Huang, Ming-Yi; Huang, Gin-Chen; Peng, Shie-Ming; Li, Feng-Yin; Bénard, Marc; Rohmer, Marie-Madeleine; Inorganic chemistry 45 (2006) 9075–9084; doi:10.1021/ic0612505

data_4350563
_publ_section_title
;
 Even-numbered metal chain complexes: synthesis, characterization, and DFT
 analysis of [Ni4(mu4-Tsdpda)4(H2O)2] (Tsdpda2- =
 N-(p-toluenesulfonyl)dipyridyldiamido), [Ni4(mu4-Tsdpda)4]+, and related
 Ni4 string complexes.
;
_journal_issue                   22
_journal_name_full               'Inorganic chemistry'
_journal_page_first              9075
_journal_page_last               9084
_journal_paper_doi               10.1021/ic0612505
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'C70 H64 Cl2 N16 Ni4 O10 S4'
_chemical_formula_weight         1723.35
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_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                 98.2406(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.3384(2)
_cell_length_b                   21.1767(4)
_cell_length_c                   25.5458(4)
_cell_measurement_temperature    150(2)
_cell_volume                     7141.2(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_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  0.0665
_diffrn_reflns_av_sigmaI/netI    0.0747
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            44704
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.54
_exptl_absorpt_coefficient_mu    1.302
_exptl_crystal_density_diffrn    1.603
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             3544
_refine_diff_density_max         1.554
_refine_diff_density_min         -1.033
_refine_diff_density_rms         '0.101 -------------------------------------'
_refine_ls_extinction_coef       0.00011(13)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.009
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     972
_refine_ls_number_reflns         12478
_refine_ls_number_restraints     9
_refine_ls_restrained_S_all      1.009
_refine_ls_R_factor_all          0.1008
_refine_ls_R_factor_gt           0.0559
_refine_ls_shift/su_max          0.017
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0897P)^2^+9.9313P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1464
_refine_ls_wR_factor_ref         0.1707
_reflns_number_gt                7990
_reflns_number_total             12478
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic0612505si20060706_045105.cif
_cod_data_source_block           ic10950
_cod_database_code               4350563