Intramolecular Valence and Spin Interaction in meso and rac Diastereomers of a p-Quinonoid-Bridged Diruthenium Complex
Doyel Kumbhakar; Biprajit Sarkar; Somnath Maji; Shaikh M. Mobin; Jan Fiedler; Francisco A. Urbanos; Reyes Jiménez-Aparicio; Wolfgang Kaim; Goutam Kumar Lahiri; Journal of the American Chemical Society 130 (2008) 17575–17583; doi:10.1021/ja807043s

data_4108886
_publ_section_title
;
 Intramolecular Valence and Spin Interaction in meso and rac Diastereomers
 of a p-Quinonoid-Bridged Diruthenium Complex
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              17575
_journal_page_last               17583
_journal_paper_doi               10.1021/ja807043s
_journal_volume                  130
_journal_year                    2008
_chemical_formula_sum            'C38 H48 Cl4 N4 O10 Ru2'
_chemical_formula_weight         1064.74
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 92.939(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   13.3882(3)
_cell_length_b                   11.5698(3)
_cell_length_c                   28.3154(6)
_cell_measurement_reflns_used    20910
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      32.4921
_cell_measurement_theta_min      3.0394
_cell_volume                     4380.25(18)
_computing_cell_refinement       'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_data_collection       'CrysAlis CCD, Oxford Diffraction Ltd.,'
_computing_data_reduction        'CrysAlis RED, Oxford Diffraction Ltd.,'
_computing_molecular_graphics    Ortep3
_computing_publication_material  Shelx97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 15.9948
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'OXFORD DIFFRACTION XCALIBUR-S'
_diffrn_measurement_method       \w/q-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0436
_diffrn_reflns_av_sigmaI/netI    0.0304
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            43081
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.05
_exptl_absorpt_coefficient_mu    0.992
_exptl_absorpt_correction_T_max  0.7686
_exptl_absorpt_correction_T_min  0.7291
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.31.7 (release 18-10-2006 CrysAlis171 .NET)
(compiled Oct 18 2006,16:28:17)
empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.615
_exptl_crystal_description       block
_exptl_crystal_F_000             2160
_exptl_crystal_size_max          0.34
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.543
_refine_diff_density_min         -0.529
_refine_diff_density_rms         0.078
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    riding
_refine_ls_matrix_type           full
_refine_ls_number_parameters     535
_refine_ls_number_reflns         7684
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0494
_refine_ls_R_factor_gt           0.0344
_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^)+(0.0347P)^2^+5.5391P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0727
_refine_ls_wR_factor_ref         0.0793
_reflns_number_gt                6266
_reflns_number_total             7684
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja807043s_si_002.cif
_cod_data_source_block           2
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4108886