Anionic Fischer-type carbene complexes as bidentate (N,O) ligands.
Raubenheimer, Helgard G.; du Toit, Aletta; du Toit, Maria; An, Jin; van Niekerk, Lizette; Cronje, Stephanie; Esterhuysen, Catharine; Crouch, Andrew M.; Dalton transactions (Cambridge, England : 2003)  (2004) 1173–1180; doi:10.1039/b316998g

data_7013989
_publ_section_title
;
 Anionic Fischer-type carbene complexes as bidentate (N,O) ligands.
;
_journal_issue                   8
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              1173
_journal_page_last               1180
_journal_paper_doi               10.1039/b316998g
_journal_year                    2004
_chemical_formula_moiety         'C30 H12 Cr4 N3 O18 S3, C H2 Cl2'
_chemical_formula_sum            'C31 H14 Cl2 Cr4 N3 O18 S3'
_chemical_formula_weight         1091.53
_chemical_name_systematic
;
?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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            8
_cell_length_a                   16.1399(2)
_cell_length_b                   21.9996(2)
_cell_length_c                   23.6745(3)
_cell_measurement_reflns_used    10318
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      1.02
_cell_volume                     8406.14(17)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (Nonius, 1998)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP-III for Windows (Farrugia,1997)'
_computing_publication_material  'WINGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       '\f and \w scans to fill Ewald sphere'
_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  0.0417
_diffrn_reflns_av_sigmaI/netI    0.0469
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            38179
_diffrn_reflns_theta_full        27.00
_diffrn_reflns_theta_max         27.00
_diffrn_reflns_theta_min         1.79
_exptl_absorpt_coefficient_mu    1.359
_exptl_absorpt_correction_T_max  0.65
_exptl_absorpt_correction_T_min  0.55
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Scalepack (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            'dark purple'
_exptl_crystal_density_diffrn    1.725
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             4344
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.34
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.693
_refine_diff_density_min         -0.559
_refine_diff_density_rms         0.071
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.020
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     553
_refine_ls_number_reflns         9175
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.020
_refine_ls_R_factor_all          0.0659
_refine_ls_R_factor_gt           0.0354
_refine_ls_shift/su_max          0.008
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0314P)^2^+4.7796P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0692
_refine_ls_wR_factor_ref         0.0778
_reflns_number_gt                6589
_reflns_number_total             9175
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b316998g.txt
_cod_data_source_block           4a
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7013989