Mixed-Valence Dinitrogen-Bridged Fe(0)/Fe(II) Complex
Leslie D. Field; Ruth W. Guest; Peter Turner; Inorganic Chemistry 49 (2010) 9086–9093; doi:10.1021/ic101646p

data_4316688
_publ_section_title
;
 Mixed-Valence Dinitrogen-Bridged Fe(0)/Fe(II) Complex
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9086
_journal_page_last               9093
_journal_paper_doi               10.1021/ic101646p
_journal_volume                  49
_journal_year                    2010
_chemical_formula_moiety         'C60 H150 Fe4 P20, C4 H8 O'
_chemical_formula_sum            'C64 H158 Fe4 O P20'
_chemical_formula_weight         1786.70
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 99.398(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.638(2)
_cell_length_b                   18.427(2)
_cell_length_c                   31.031(3)
_cell_measurement_reflns_used    8497
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      28.2290
_cell_measurement_theta_min      2.2105
_cell_volume                     9386.1(18)
_computing_cell_refinement       'SAINT Ver. 6.45  (Bruker-AXS, 2003)'
_computing_data_collection       'SMART Ver. 5.054 (Bruker-AXS, 1998)'
_computing_data_reduction        'SAINT Ver. 6.45'
_computing_molecular_graphics
;
X-Seed (Barbour, 2001), SHELXTL Ver. 6.14 (Bruker-AXS, 2003)
;
_computing_publication_material  'modiCIFer-12162005 (Guzei, 2005)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_crystal_treatment
;
attached with Exxon Paratone N, to a short length 
of fibre supported on a thin piece of copper wire 
inserted in a copper mounting pin.  The crystal was 
quenched in a cold nitrogen gas stream from an 
Oxford Cryosystems Cryostream. 
;
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.967
_diffrn_measurement_device_type  'Bruker CCD-1000 area detector'
_diffrn_measurement_method       \w
_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  0.0295
_diffrn_reflns_av_sigmaI/netI    0.0279
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            92544
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         28.34
_diffrn_reflns_theta_min         1.66
_diffrn_standards_decay_%        0.02
_diffrn_standards_number         748
_exptl_absorpt_coefficient_mu    0.981
_exptl_absorpt_correction_T_max  0.792
_exptl_absorpt_correction_T_min  0.686
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS  (Bruker-AXS, 2004)
;
_exptl_crystal_colour            orange
_exptl_crystal_density_diffrn    1.264
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             3816
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.35
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.855
_refine_diff_density_min         -0.472
_refine_diff_density_rms         0.064
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.044
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1251
_refine_ls_number_reflns         22641
_refine_ls_number_restraints     758
_refine_ls_restrained_S_all      1.036
_refine_ls_R_factor_all          0.0566
_refine_ls_R_factor_gt           0.0354
_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^)+(0.0430P)^2^+6.2806P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0845
_refine_ls_wR_factor_ref         0.0979
_reflns_number_gt                17197
_reflns_number_total             22641
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ic101646p_si_001_3.cif
_cod_data_source_block           ldf06pj7
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_cell_volume        9386.0(18)
_cod_original_sg_symbol_Hall     '-P 2yn      '
_cod_original_sg_symbol_H-M      'P 1 21/n 1 '
_cod_database_code               4316688