Catalytic Reduction of N2 to NH3 by an Fe-N2 Complex Featuring a C-Atom Anchor.
Creutz, Sidney E.; Peters, Jonas C.; Journal of the American Chemical Society 136 (2014) 1105–1115; doi:10.1021/ja4114962

data_4120514
_publ_section_title
;
 Catalytic Reduction of N2 to NH3 by an Fe-N2 Complex Featuring a C-Atom
 Anchor.
;
_journal_issue                   3
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              1105
_journal_page_last               1115
_journal_paper_doi               10.1021/ja4114962
_journal_volume                  136
_journal_year                    2014
_chemical_formula_sum            'C37 H54 Fe N2 P3'
_chemical_formula_weight         675.58
_chemical_name_common            CP3FeN2
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           148
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_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                 90.00
_cell_angle_gamma                120.00
_cell_formula_units_Z            18
_cell_length_a                   19.4069(5)
_cell_length_b                   19.4069(5)
_cell_length_c                   47.9751(17)
_cell_measurement_reflns_used    9323
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      34.22
_cell_measurement_theta_min      2.45
_cell_volume                     15648.0(8)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.33
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0193
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       23
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       57
_diffrn_reflns_limit_l_min       -57
_diffrn_reflns_number            12326
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         1.27
_exptl_absorpt_coefficient_mu    0.600
_exptl_absorpt_correction_T_max  .7478
_exptl_absorpt_correction_T_min  .6758
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS v2008/1 (Bruker-AXS, 2008)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.290
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             6498
_refine_diff_density_max         2.593
_refine_diff_density_min         -0.891
_refine_diff_density_rms         0.156
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.106
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     389
_refine_ls_number_reflns         12326
_refine_ls_number_restraints     335
_refine_ls_restrained_S_all      1.092
_refine_ls_R_factor_all          0.0655
_refine_ls_R_factor_gt           0.0624
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1118P)^2^+67.5807P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1624
_refine_ls_wR_factor_ref         0.1672
_reflns_number_gt                11724
_reflns_number_total             12326
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja4114962_si_002.cif
_cod_data_source_block           sec23p
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Trigonal' changed to 'trigonal'
according to
/usr/data/users/saulius/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      R-3
_cod_database_code               4120514