(α-Diimine)chromium Complexes: Molecular and Electronic Structures; A Combined Experimental and Density Functional Theoretical Study
Meenakshi Ghosh; Stephen Sproules; Thomas Weyhermüller; Karl Wieghardt; Inorganic Chemistry 47 (2008) 5963–5970; doi:10.1021/ic800290s

data_4305316
_publ_section_title
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(\a-Diimine)chromium Complexes: Molecular and Electronic Structures; A
Combined Experimental and Density Functional Theoretical Study
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5963
_journal_page_last               5970
_journal_paper_doi               10.1021/ic800290s
_journal_volume                  47
_journal_year                    2008
_chemical_formula_sum            'C38 H54 Cr N2 O4'
_chemical_formula_weight         654.83
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.743(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   21.835(2)
_cell_length_b                   12.5567(10)
_cell_length_c                   27.350(2)
_cell_measurement_temperature    100(2)
_cell_volume                     7498.1(11)
_computing_cell_refinement       'Bruker AXS Collect Software'
_computing_data_collection       'Bruker AXS Collect Software'
_computing_data_reduction        'Bruker AXS Collect Software'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  'Bruker-Nonius KappaCCD'
_diffrn_measurement_method
"'2833 images at 0.3 deg. stepwise rotation in omega and phi, 36 sec./frame"
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0938
_diffrn_reflns_av_sigmaI/netI    0.0740
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       35
_diffrn_reflns_limit_l_min       -34
_diffrn_reflns_number            55245
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.91
_exptl_absorpt_coefficient_mu    0.344
_exptl_absorpt_correction_T_max  0.9473
_exptl_absorpt_correction_T_min  0.8229
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            orange-brown
_exptl_crystal_density_diffrn    1.160
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'transparent parallelepiped'
_exptl_crystal_F_000             2816
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.297
_refine_diff_density_min         -0.461
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.022
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     420
_refine_ls_number_reflns         8549
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.022
_refine_ls_R_factor_all          0.0932
_refine_ls_R_factor_gt           0.0562
_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^)+(0.0305P)^2^+12.6930P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0950
_refine_ls_wR_factor_ref         0.1095
_reflns_number_gt                6022
_reflns_number_total             8549
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic800290s-file001_2.cif
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Multi-Scan' changed to
'multi-scan' 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_enum 1527 2010-12-29 10:47:43Z saulius 
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_cod_database_code               4305316