Linear Trichromium Complexes with Direct Cr to Cr Contacts. 1. Compounds with Cr3(dipyridylamide)42+ Cores
Rodolphe Clérac; F. Albert Cotton; Lee M. Daniels; Kim R. Dunbar; Carlos A. Murillo; Isabel Pascual; Inorganic Chemistry 39 (2000) 748–751; doi:10.1021/ic990793u

data_4300088
_publ_section_title
;
Linear Trichromium Complexes with Direct Cr to Cr Contacts. 1. Compounds
with Cr3(dipyridylamide)42+ Cores
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              748
_journal_page_last               751
_journal_paper_doi               10.1021/ic990793u
_journal_volume                  39
_journal_year                    2000
_chemical_compound_source        synthesis
_chemical_formula_sum            'C42 H36 Cl5 Cr3 F6 N12 P'
_chemical_formula_weight         1187.05
_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   difmap
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL
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_cell_angle_beta                 109.80(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.126(3)
_cell_length_b                   16.962(1)
_cell_length_c                   15.515(1)
_cell_measurement_reflns_used    160
_cell_measurement_temperature    213(2)
_cell_measurement_theta_max      14.6
_cell_measurement_theta_min      9.1
_cell_volume                     4735.7(9)
_computing_cell_refinement       MADNES
_computing_data_collection       MADNES
_computing_data_reduction        PROCOR
_computing_molecular_graphics    'SHELXTL (Siemens, 1996)'
_computing_publication_material  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_refinement  'SHELXL-93 (Sheldrick, 1993)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measurement_device       'Nonius FAST'
_diffrn_measurement_method       'Ellipsoid mask-fitting'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
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_diffrn_reflns_av_sigmaI/netI    0.0325
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
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_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            10455
_diffrn_reflns_theta_max         22.52
_diffrn_reflns_theta_min         2.40
_diffrn_standards_number         'None (Area detector)'
_exptl_absorpt_coefficient_mu    1.063
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            green-black
_exptl_crystal_density_diffrn    1.665
_exptl_crystal_density_meas      ?
_exptl_crystal_description       regular
_exptl_crystal_F_000             2392
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.40
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_refine_diff_density_min         -0.551
_refine_diff_density_rms         0.085
_refine_ls_extinction_method     none
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_refine_ls_goodness_of_fit_obs   1.163
_refine_ls_hydrogen_treatment    refall
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_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0510P)^2^+28.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1277
_refine_ls_wR_factor_obs         0.1242
_reflns_number_observed          2760
_reflns_number_total             2968
_reflns_observed_criterion       >2sigma(I)
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'None' changed to 'none'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

'_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^)+(0.0510P)^2^+28.0000P] 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^)+(0.0510P)^2^+28.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        4735.6(9)
_cod_database_code               4300088