Two-Coordinate, Quasi-Two-Coordinate, and Distorted Three Coordinate, T-Shaped Chromium(II) Amido Complexes: Unusual Effects of Coordination Geometry on the Lowering of Ground State Magnetic Moments
Jessica N. Boynton; W. Alexander Merrill; William M. Reiff; James C. Fettinger; Philip P. Power; Inorganic Chemistry 51 (2012) 3212–3219; doi:10.1021/ic202661n

data_4328569
_publ_section_title
;
 Two-Coordinate, Quasi-Two-Coordinate, and Distorted Three Coordinate,
 T-Shaped Chromium(II) Amido Complexes: Unusual Effects of Coordination
 Geometry on the Lowering of Ground State Magnetic Moments
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3212
_journal_page_last               3219
_journal_paper_doi               10.1021/ic202661n
_journal_volume                  51
_journal_year                    2012
_chemical_formula_moiety         'C52 H60 Cr N2 O'
_chemical_formula_sum            'C52 H60 Cr N2 O'
_chemical_formula_weight         781.02
_chemical_name_systematic
; 

 ? 

;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   '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                 90.413(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.5197(15)
_cell_length_b                   16.081(2)
_cell_length_c                   25.496(4)
_cell_measurement_reflns_used    1585
_cell_measurement_temperature    90(2)
_cell_measurement_theta_max      23.63
_cell_measurement_theta_min      2.31
_cell_volume                     4313.0(11)
_computing_cell_refinement       'SAINT (7.68A) (Bruker, 2009)'
_computing_data_collection       'Apex2 (2010-11.3) (Bruker, 2010)'
_computing_data_reduction        'SAINT (7.68A) (Bruker, 2009)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      90(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0321
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            9881
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         1.94
_exptl_absorpt_coefficient_mu    0.305
_exptl_absorpt_correction_T_max  0.9707
_exptl_absorpt_correction_T_min  0.8276
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'TWINABS V2008/4 (Sheldrick, 2008)'
_exptl_crystal_colour            Dichroic
_exptl_crystal_density_diffrn    1.203
_exptl_crystal_description       Block
_exptl_crystal_F_000             1672
_exptl_crystal_size_max          0.65
_exptl_crystal_size_mid          0.37
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.354
_refine_diff_density_min         -0.474
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     534
_refine_ls_number_reflns         9881
_refine_ls_number_restraints     21
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0569
_refine_ls_R_factor_gt           0.0448
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0451P)^2^+3.2726P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1042
_refine_ls_wR_factor_ref         0.1091
_reflns_number_gt                8352
_reflns_number_total             9881
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic202661n_si_001_3.cif
_cod_data_source_block           tw41
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4328569