Accurate Redeterminations of 1,1'-Dibenzoylferrocene and (4-Nitrophenyl)ferrocene
Gallagher, John F.; Ferguson, George; Ahmed, S. Zaka; Glidewell, Christopher; Lewis, Arwel; Acta Crystallographica Section C 53 (1997) 1772–1775; doi:10.1107/S0108270197012602

data_2006879
_publ_section_title
;
 Accurate Redeterminations of 1,1'-Dibenzoylferrocene and
 (4-Nitrophenyl)ferrocene
;
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1772
_journal_page_last               1775
_journal_paper_doi               10.1107/S0108270197012602
_journal_volume                  53
_journal_year                    1997
_chemical_formula_iupac          '[Fe (C12 H9 O)2]'
_chemical_formula_moiety         'C24 H18 O2 Fe'
_chemical_formula_sum            'C24 H18 Fe O2'
_chemical_formula_weight         394.23
_chemical_name_systematic
;
1,1'-Dibenzoylferrocene
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_cell_angle_alpha                90.00
_cell_angle_beta                 90.060(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.2616(8)
_cell_length_b                   25.1866(15)
_cell_length_c                   11.6030(9)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    294.0(10)
_cell_measurement_theta_max      22.43
_cell_measurement_theta_min      9.42
_cell_volume                     1829.9(3)
_computing_cell_refinement       'SET4 and CELDIM CAD4-PC'
_computing_data_collection       'CAD4-PC (Enraf-Nonius, 1992)'
_computing_data_reduction        'DATRD2 in NRCVAX96 (Gabe et al., 1989)'
_computing_molecular_graphics
'NRCVAX96, ORTEPII (Johnson, 1976), PLATON (Spek, 1997a), PLUTON (Spek, 1997b)'
_computing_publication_material
'NRCVAX96, SHELXL97 and WordPerfect macro PRPCIF97 (Ferguson, 1997)'
_computing_structure_refinement  'NRCVAX96 and SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'NRCVAX96 via Patterson heavy-atom method'
_diffrn_ambient_temperature      294.0(10)
_diffrn_measurement_device       'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \w--2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           'Molybdenum K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.009
_diffrn_reflns_av_sigmaI/netI    0.0604
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       32
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            4639
_diffrn_reflns_theta_full        27.4
_diffrn_reflns_theta_max         27.4
_diffrn_reflns_theta_min         2.38
_diffrn_standards_decay_%        'no decay, variation 1'
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.840
_exptl_absorpt_correction_T_max  0.8164
_exptl_absorpt_correction_T_min  0.7797
_exptl_absorpt_correction_type
'empirical, 5 \y scans at 4\% steps (North, Phillips & Mathews, 1968)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.431
_exptl_crystal_density_meas      ?
_exptl_crystal_description       needle
_exptl_crystal_F_000             816
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.280
_refine_diff_density_min         -0.242
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.996
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     244
_refine_ls_number_reflns         4171
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.996
_refine_ls_R_factor_all          0.1026
_refine_ls_R_factor_gt           0.0402
_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^)+(0.0371P)^2^+0.1903P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.0876
_reflns_number_gt                2415
_reflns_number_total             4171
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk1150.cif
_cod_data_source_block           I
_cod_depositor_comments
;
 Marking atoms 'Cg1' and 'Cg2' as dummy atoms.

 Antanas Vaitkus,
 2017-02-19

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.0371P)^2^+0.1903P] 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^)+(0.0371P)^2^+0.1903P] 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      'P 21/n'
_cod_original_formula_sum        'C24 H18 O2 Fe'
_cod_database_code               2006879