Low-Valent Aminopyridinato Chromium Methyl Complexes via Reductive Alkylation and via Oxidative Addition of Iodomethane by a Cr‒Cr Quintuple Bond
Noor, Awal; Schwarz, Stefan; Kempe, Rhett; Organometallics 34 (2015) 2122–; doi:10.1021/om501230g

data_4085493
_publ_section_title
;
 Low-Valent Aminopyridinato Chromium Methyl Complexes via Reductive
 Alkylation and via Oxidative Addition of Iodomethane by a Cr--Cr
 Quintuple Bond
;
_journal_issue                   11
_journal_name_full               Organometallics
_journal_page_first              2122
_journal_paper_doi               10.1021/om501230g
_journal_volume                  34
_journal_year                    2015
_chemical_formula_sum            'C43 H66 Cl2 Cr N2 O2'
_chemical_formula_weight         765.88
_chemical_name_common            'Compound 3'
_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                63.156(5)
_cell_angle_beta                 86.600(5)
_cell_angle_gamma                78.347(5)
_cell_formula_units_Z            2
_cell_length_a                   10.5940(10)
_cell_length_b                   14.8900(10)
_cell_length_c                   15.4030(10)
_cell_measurement_reflns_used    all
_cell_measurement_temperature    190(2)
_cell_volume                     2121.8(3)
_computing_data_collection       X-AREA-STOE
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    SIR97
_diffrn_ambient_temperature      190(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  STOE-IPDSII
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0614
_diffrn_reflns_av_sigmaI/netI    0.0659
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            27975
_diffrn_reflns_theta_full        25.80
_diffrn_reflns_theta_max         25.80
_diffrn_reflns_theta_min         1.48
_exptl_absorpt_coefficient_mu    0.431
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.199
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.516
_refine_diff_density_min         -0.327
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.940
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     451
_refine_ls_number_reflns         8002
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.940
_refine_ls_R_factor_all          0.0796
_refine_ls_R_factor_gt           0.0443
_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^)+(0.0523P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0916
_refine_ls_wR_factor_ref         0.1005
_reflns_number_gt                5425
_reflns_number_total             8002
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            om501230g_si_001.cif
_cod_data_source_block           k157a
_cod_depositor_comments
'Adding full bibliography for 4085493--4085498.cif.'
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4085493