Exploring Chromium(III)-Alkyl Bond Homolysis with CpCr[(ArNCMe)2CH](R) Complexes
K. Cory MacLeod; Julia L. Conway; Brian O. Patrick; Kevin M. Smith; Journal of the American Chemical Society 132 (2010) 17325–17334; doi:10.1021/ja1083392

data_4103637
_publ_section_title
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 Exploring Chromium(III)-Alkyl Bond Homolysis with CpCr[(ArNCMe)2CH](R)
 Complexes
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_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              17325
_journal_page_last               17334
_journal_paper_doi               10.1021/ja1083392
_journal_volume                  132
_journal_year                    2010
_chemical_formula_sum            'C38 H53 Cr N2 O'
_chemical_formula_weight         605.82
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           62
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.8366(12)
_cell_length_b                   20.2245(12)
_cell_length_c                   9.8941(8)
_cell_measurement_reflns_used    15941
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.8
_cell_measurement_theta_min      2.05
_cell_volume                     3369.1(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.925
_diffrn_measurement_device_type  'Rigaku/ADSC CCD'
_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  0.0800
_diffrn_reflns_av_sigmaI/netI    0.0884
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -19
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            3813
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         27.87
_diffrn_reflns_theta_min         2.42
_exptl_absorpt_coefficient_mu    0.371
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.7662
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.194
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             1308
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.12
_refine_diff_density_max         1.148
_refine_diff_density_min         -0.656
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     236
_refine_ls_number_reflns         3813
_refine_ls_number_restraints     7
_refine_ls_restrained_S_all      1.027
_refine_ls_R_factor_all          0.0897
_refine_ls_R_factor_gt           0.0605
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0951P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1620
_refine_ls_wR_factor_ref         0.1796
_reflns_number_gt                2617
_reflns_number_total             3813
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja1083392_si_002_10.cif
_cod_data_source_block           6a_Dpp_C7H7O
_cod_depositor_comments
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The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0951P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0951P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_database_code               4103637