Unsymmetrical N-heterocyclic carbenes with a 1,1'-ferrocenediyl backbone.
Rittinghaus, Stefan; Färber, Christian; Bruhn, Clemens; Siemeling, Ulrich; Dalton transactions (Cambridge, England : 2003) 43 (2014) 3508–3520; doi:10.1039/c3dt52669k

data_7029189
_publ_section_title
;
 Unsymmetrical N-heterocyclic carbenes with a 1,1'-ferrocenediyl backbone.
;
_journal_issue                   9
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              3508
_journal_page_last               3520
_journal_paper_doi               10.1039/c3dt52669k
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C33 H30 Cl Fe N2 O2 Rh'
_chemical_formula_sum            'C33 H30 Cl Fe N2 O2 Rh'
_chemical_formula_weight         680.80
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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                 112.394(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   21.200(2)
_cell_length_b                   6.6361(5)
_cell_length_c                   21.901(3)
_cell_measurement_reflns_used    4577
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      24.41
_cell_measurement_theta_min      1.14
_cell_volume                     2848.8(5)
_computing_cell_refinement       'X-Area (Stoe & Cie. 2006)'
_computing_data_collection       'X-Area (Stoe & Cie. 2006)'
_computing_data_reduction        'X-Area (Stoe & Cie. 2006)'
_computing_molecular_graphics    'ORTEP3 win. (Farrugia 2008)'
_computing_publication_material  'PLATON (Spek 2011)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_detector                 'image plate (34 cm diameter)'
_diffrn_detector_area_resol_mean 6.67
_diffrn_detector_type            STOE
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_details      ' 150 frames, detector distance = 135 mm'
_diffrn_measurement_device       '2-circle goniometer'
_diffrn_measurement_device_type  'STOE IPDS 2'
_diffrn_measurement_method       'rotation method'
_diffrn_radiation_collimation    '0.5 mm diameter, multiple pinhole'
_diffrn_radiation_monochromator  'plane graphite'
_diffrn_radiation_polarisn_norm  0
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1343
_diffrn_reflns_av_sigmaI/netI    0.1978
_diffrn_reflns_limit_h_max       25
_diffrn_reflns_limit_h_min       -25
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            14762
_diffrn_reflns_theta_full        25.19
_diffrn_reflns_theta_max         25.19
_diffrn_reflns_theta_min         1.14
_diffrn_source
'sealed X-ray tube, 12 x 0.4 mm long-fine focus'
_diffrn_source_current           30
_diffrn_source_power             1.50
_diffrn_source_voltage           50
_diffrn_standards_decay_%        none
_exptl_absorpt_coefficient_mu    1.216
_exptl_absorpt_correction_T_max  0.8831
_exptl_absorpt_correction_T_min  0.7432
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'X-red ver. 1.31 (Stoe & Cie. 2005)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.587
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1384
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.490
_refine_diff_density_min         -0.701
_refine_diff_density_rms         0.095
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.766
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     364
_refine_ls_number_reflns         5061
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.766
_refine_ls_R_factor_all          0.1472
_refine_ls_R_factor_gt           0.0509
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0120P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0756
_refine_ls_wR_factor_ref         0.0956
_reflns_number_gt                2202
_reflns_number_total             5061
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt52669k.txt
_cod_data_source_block           i1125
_cod_original_cell_volume        2848.9(5)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7029189