Trianionic NCN3‒Pincer Complexes of Chromium in Four Oxidation States (CrII, CrIII, CrIV, CrV): Determination of the Active Catalyst in Selective 1-Alkene to 2-Alkene Isomerization
McGowan, Kevin P.; Abboud, Khalil A.; Veige, Adam S.; Organometallics 30 (2011) 4949–; doi:10.1021/om200547u

data_4065060
_publ_section_title
;
 Trianionic NCN3--Pincer Complexes of Chromium in Four Oxidation States
 (CrII, CrIII, CrIV, CrV): Determination of the Active Catalyst in
 Selective 1-Alkene to 2-Alkene Isomerization
;
_journal_issue                   18
_journal_name_full               Organometallics
_journal_page_first              4949
_journal_paper_doi               10.1021/om200547u
_journal_volume                  30
_journal_year                    2011
_chemical_formula_sum            'C37 H52 Cr N2 O'
_chemical_formula_weight         592.81
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2010-03-19 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 104.138(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   34.092(4)
_cell_length_b                   11.7102(14)
_cell_length_c                   17.247(2)
_cell_measurement_reflns_used    190
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.0
_cell_measurement_theta_min      2.0
_cell_volume                     6676.9(14)
_computing_cell_refinement       'Bruker APEX2'
_computing_data_collection       'Bruker APEX2 (Bruker, 2008)'
_computing_data_reduction        'Bruker SAINT (Bruker, 2008)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL (Bruker, 2008)'
_diffrn_ambient_temperature      100(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       '\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  0.0958
_diffrn_reflns_av_sigmaI/netI    0.0724
_diffrn_reflns_limit_h_max       44
_diffrn_reflns_limit_h_min       -44
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            52816
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.84
_exptl_absorpt_coefficient_mu    0.373
_exptl_absorpt_correction_T_max  0.9904
_exptl_absorpt_correction_T_min  0.8717
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details
'based on measured indexed crystal faces, Bruker SHELXTL  v6.12 (Bruker 2007)'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.179
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             2560
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.19
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.542
_refine_diff_density_min         -0.610
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.969
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     366
_refine_ls_number_reflns         7675
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.969
_refine_ls_R_factor_all          0.0818
_refine_ls_R_factor_gt           0.0440
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0602P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1049
_refine_ls_wR_factor_ref         0.1166
_reflns_number_gt                5016
_reflns_number_total             7675
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            om200547u_si_001.cif
_cod_data_source_block           mcg3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

 Adding full bibliography for 4065060.cif.
;
_cod_original_cell_volume        6676.7(14)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               4065060