Electron Redistribution of Aromatic Ligands in (Arene)Cr(CO)3Complexes. Structural (Bond-Length) Changes as Quantitative Measures
Le Maguères, P.; Lindeman, S. V.; Kochi, J. K.; Organometallics 20 (2001) 115–; doi:10.1021/om000658l

data_4077199
_publ_section_title
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 Electron Redistribution of Aromatic Ligands in (Arene)Cr(CO)3Complexes.
 Structural (Bond-Length) Changes as Quantitative Measures
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_journal_issue                   1
_journal_name_full               Organometallics
_journal_page_first              115
_journal_paper_doi               10.1021/om000658l
_journal_volume                  20
_journal_year                    2001
_chemical_compound_source        'chemical synthesis'
_chemical_formula_moiety
;
(C18 H22 O2)^+^, (N O), (Cl6 Sb)^-^
;
_chemical_formula_sum            'C18 H22 Cl6 N O3 Sb'
_chemical_formula_weight         634.82
_chemical_name_systematic
; 
 9,10-Dimethoxy-1,2,3,4,5,6,7,8-octahydro-1,4:5,8-anti-dimethanoanthracene
 nitrozonium hexachloroantimonate complex
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
_cell_angle_alpha                90.00
_cell_angle_beta                 91.5670(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.83850(10)
_cell_length_b                   20.9771(2)
_cell_length_c                   12.78670(10)
_cell_measurement_reflns_used    8192
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      36.2
_cell_measurement_theta_min      1.6
_cell_volume                     2369.85(4)
_computing_cell_refinement       'SAINT V4.050 (Siemens, 1989-95)'
_computing_data_collection       'SMART V4.050 (Siemens, 1989-95)'
_computing_data_reduction        'SAINT & SADABS (Sheldrick, 1996)'
_computing_molecular_graphics    'XP V5.06 (Siemens, 1996)'
_computing_publication_material  'SHELXL-93 & XCIF V5.05 (Siemens, 1996)'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      123(2)
_diffrn_measurement_device       'Siemens SMART'
_diffrn_measurement_method
;
\w-scan, frame range 0.3 deg, hemisphere
;
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0289
_diffrn_reflns_av_sigmaI/netI    0.0421
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       34
_diffrn_reflns_limit_k_min       -34
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            43584
_diffrn_reflns_theta_max         36.27
_diffrn_reflns_theta_min         1.59
_diffrn_standards_decay_%        0.4
_diffrn_standards_number         332
_exptl_absorpt_coefficient_mu    1.861
_exptl_absorpt_correction_T_max  0.650
_exptl_absorpt_correction_T_min  0.483
_exptl_absorpt_correction_type   'empirical (SADABS procedure)'
_exptl_crystal_colour            dark
_exptl_crystal_density_diffrn    1.779
_exptl_crystal_density_method    none
_exptl_crystal_description       prism
_exptl_crystal_F_000             1256
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.824
_refine_diff_density_min         -1.024
_refine_diff_density_rms         0.100
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.490(9)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_all   1.058
_refine_ls_goodness_of_fit_obs   1.049
_refine_ls_hydrogen_treatment
;
riding and rotating model with Uiso=1.2Uiso/eq of an adjacent atom
(1.5Uiso/eq for Me hydrogens)
;
_refine_ls_matrix_type           full
_refine_ls_number_parameters     528
_refine_ls_number_reflns         20622
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.065
_refine_ls_restrained_S_obs      1.049
_refine_ls_R_factor_all          0.0459
_refine_ls_R_factor_obs          0.0353
_refine_ls_shift/esd_max         0.004
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0333P)^2^+1.1401P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.0801
_refine_ls_wR_factor_obs         0.0739
_reflns_number_observed          18131
_reflns_number_total             20632
_reflns_observed_criterion       >2sigma(I)
_cod_data_source_file            om000658l.cif
_cod_data_source_block           CRET-NO+
_cod_depositor_comments
;
The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0333P)^2^+1.1401P] 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^)+(0.0333P)^2^+1.1401P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               4077199