Evaluation of Donor and Steric Properties of Anionic Ligands on High Valent Transition Metals
Stephen A. DiFranco; Nicholas A. Maciulis; Richard J. Staples; Rami J. Batrice; Aaron L. Odom; Inorganic Chemistry 51 (2012) 1187–1200; doi:10.1021/ic202524r

data_4328097
_publ_section_title
;
 Evaluation of Donor and Steric Properties of Anionic Ligands on High
 Valent Transition Metals
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              1187
_journal_page_last               1200
_journal_paper_doi               10.1021/ic202524r
_journal_volume                  51
_journal_year                    2012
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C16 H32 Cr N4'
_chemical_formula_sum            'C16 H32 Cr N4'
_chemical_formula_weight         332.46
_chemical_name_common            NCr(NiPr2)2(Pyr)
_chemical_properties_physical
'air-sensitive, moisture-sensitive, oxygen-sensitive'
_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                 102.896(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.1727(10)
_cell_length_b                   19.273(2)
_cell_length_c                   11.0466(11)
_cell_measurement_reflns_used    1582
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.37
_cell_measurement_theta_min      4.11
_cell_volume                     1903.6(3)
_computing_cell_refinement       'APEX2 (BRUKER, V2008.5-0, 2006)'
_computing_data_collection       'COSMO (BRUKER, V1.58, 2006)'
_computing_data_reduction        'SAINT (BRUKER, V7.34A, 2006)'
_computing_molecular_graphics
'SHELXTL (Sheldrick, Acta Cryst. A64 2008, 112-122)'
_computing_publication_material
'SHELXTL (Sheldrick, Acta Cryst. A64 2008, 112-122)'
_computing_structure_refinement
'SHELXL (Sheldrick, Acta Cryst. A64 2008, 112-122)'
_computing_structure_solution
'SHELXS (Sheldrick, Acta Cryst. A64 2008, 112-122)'
_diffrn_ambient_temperature      173(2)
_diffrn_detector_area_resol_mean 836.6
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_method       '\w,and/f 0.5 deg'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0466
_diffrn_reflns_av_sigmaI/netI    0.0384
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            16789
_diffrn_reflns_theta_full        25.40
_diffrn_reflns_theta_max         25.40
_diffrn_reflns_theta_min         2.17
_diffrn_source                   'fine-focus sealed tube'
_diffrn_source_type              'sealed tube'
_exptl_absorpt_coefficient_mu    0.601
_exptl_absorpt_correction_T_max  0.9445
_exptl_absorpt_correction_T_min  0.8593
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.160
_exptl_crystal_description       chunk
_exptl_crystal_F_000             720
_exptl_crystal_recrystallization_method 'cold pentane'
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.335
_refine_diff_density_min         -0.231
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     198
_refine_ls_number_reflns         3495
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0518
_refine_ls_R_factor_gt           0.0344
_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^)+(0.0363P)^2^+0.7280P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0802
_refine_ls_wR_factor_ref         0.0873
_reflns_number_gt                2719
_reflns_number_total             3495
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic202524r_si_003_23.cif
_cod_data_source_block           rjb08202009_0m
_cod_original_cell_volume        1903.7(3)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4328097
_contact_crystallographer_name   'Richard Staples'
_contact_crystallographer_email  xraystaples@chemistry.msu.com