Angular Distortions at Benzylic Carbons Due to Intramolecular Polarization-Induced Metal‒Arene Interactions: A Case Study with Open-Shell Chromium(II) NHC Complexes
Danopoulos, Andreas A.; Monakhov, Kirill Yu.; Robert, Vincent; Braunstein, Pierre; Pattacini, Roberto; Conde-Guadaño, Susana; Hanton, Martin; Tooze, Robert P.; Organometallics 32 (2013) 1842–; doi:10.1021/om3012568

data_4080439
_publ_section_title
;
 Angular Distortions at Benzylic Carbons Due to Intramolecular
 Polarization-Induced Metal--Arene Interactions: A Case Study with
 Open-Shell Chromium(II) NHC Complexes
;
_journal_issue                   6
_journal_name_full               Organometallics
_journal_page_first              1842
_journal_paper_doi               10.1021/om3012568
_journal_volume                  32
_journal_year                    2013
_chemical_formula_moiety         'C32 H46 Cr N4, C4 H8 O'
_chemical_formula_sum            'C36 H54 Cr N4 O'
_chemical_formula_weight         610.83
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                81.140(2)
_cell_angle_beta                 85.553(2)
_cell_angle_gamma                88.504(2)
_cell_formula_units_Z            2
_cell_length_a                   10.4254(4)
_cell_length_b                   10.6281(4)
_cell_length_c                   16.0874(6)
_cell_measurement_temperature    153(2)
_cell_volume                     1755.77(12)
_computing_cell_refinement
;
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)' 
;
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
;
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'  
;
_computing_publication_material  'WinGX Farrugia 1998'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 Sheldrick 1997'
_diffrn_ambient_temperature      153(2)
_diffrn_detector_area_resol_mean '4096x4096pixels / 62x62mm'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type
; 
'Bruker-Nonius APEX II CCD camera on \k-goniostat' 
;
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  '10cm confocal mirrors'
_diffrn_radiation_source
;
'Bruker-Nonius FR591 rotating anode' 
;
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0642
_diffrn_reflns_av_sigmaI/netI    0.0478
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            29819
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         2.97
_exptl_absorpt_coefficient_mu    0.358
_exptl_absorpt_correction_T_max  0.9483
_exptl_absorpt_correction_T_min  0.9319
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS  v2.10 (Sheldrick, G. M. 2003)
;
_exptl_crystal_density_diffrn    1.155
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             660
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.717
_refine_diff_density_min         -0.429
_refine_diff_density_rms         0.076
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.101
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     520
_refine_ls_number_reflns         6188
_refine_ls_number_restraints     422
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0999
_refine_ls_R_factor_gt           0.0746
_refine_ls_shift/su_max          0.074
_refine_ls_shift/su_mean         0.004
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0604P)^2^+4.3345P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1699
_refine_ls_wR_factor_ref         0.1878
_reflns_number_gt                4890
_reflns_number_total             6188
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om3012568_si_003.cif
_cod_data_source_block           complex2
_cod_original_cell_volume        1755.77(11)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4080439