Heterometallic metal carbonyl compounds derived from (η6-arene)tricarbonylchromium bearing propargyl units
Casagrande, Jr., Osvaldo L.; Gomes, Elton L. S.; Dupont, Jairton; Burrow, Robert; Lough, Alan J.; Journal of the Chemical Society, Dalton Transactions  (2001) 1634–; doi:10.1039/b009591p

data_7010473
_publ_section_title
;
 Heterometallic metal carbonyl compounds derived from
 (\h6-arene)tricarbonylchromium bearing propargyl units
;
_journal_issue                   10
_journal_name_full
'Journal of the Chemical Society, Dalton Transactions'
_journal_page_first              1634
_journal_paper_doi               10.1039/b009591p
_journal_year                    2001
_chemical_formula_sum            'C28 H23 Cr Mo2 N O7'
_chemical_formula_weight         729.35
_chemical_name_systematic        ?
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method
'Manual editing of cif generated by 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                   8.8575(6)
_cell_length_b                   17.2298(10)
_cell_length_c                   17.6676(11)
_cell_measurement_reflns_used    30401
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.40
_cell_measurement_theta_min      2.55
_cell_volume                     2696.3(3)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'KappaCCD server software (Nonius, 1997)'
_computing_data_reduction        'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 1990)'
_computing_publication_material  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Nonius KappaCCD'
_diffrn_measurement_method
;
\y scans and \w scans with \k offsets
;
_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  0.057
_diffrn_reflns_av_sigmaI/netI    0.0750
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            35384
_diffrn_reflns_theta_full        25.37
_diffrn_reflns_theta_max         25.37
_diffrn_reflns_theta_min         2.57
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.359
_exptl_absorpt_correction_T_max  0.9108
_exptl_absorpt_correction_T_min  0.8221
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
The program Denzo-SMN (Otwinowski & Minor, 1997) uses a scaling 
algorithm (Fox & Holmes, 1996) which effectively corrects for
absorption effects. High redundancy data were used in the scaling
program hence 'multi-scan' code word was used. No transmission 
coefficients are available from the program (only scale factors
for each frame). The transmission factors in the experimental table
are calculated from the 'size' command in the SHELXL-97 input file.
;
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.797
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1448
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.07
_refine_diff_density_max         2.029
_refine_diff_density_min         -0.783
_refine_diff_density_rms         0.118
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.01(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.041
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     355
_refine_ls_number_reflns         4953
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.041
_refine_ls_R_factor_all          0.0583
_refine_ls_R_factor_gt           0.0481
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0484P)^2^+6.0932P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1113
_refine_ls_wR_factor_ref         0.1180
_reflns_number_gt                4398
_reflns_number_total             4953
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b009591p.txt
_cod_data_source_block           k0018
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value '
calc w=1/[\s^2^(Fo^2^)+(0.0484P)^2^+6.0932P] 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^)+(0.0484P)^2^+6.0932P] 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               7010473