Alkali-Controlled C-H Cleavage or N-C Bond Formation by N2-Derived Iron Nitrides and Imides.
MacLeod, K. Cory; Menges, Fabian S.; McWilliams, Sean F.; Craig, Stephanie M.; Mercado, Brandon Q.; Johnson, Mark A.; Holland, Patrick L.; Journal of the American Chemical Society 138 (2016) 11185–11191; doi:10.1021/jacs.6b04984

data_4125208
_publ_section_title
;
 Alkali-Controlled C-H Cleavage or N-C Bond Formation by N2-Derived Iron
 Nitrides and Imides.
;
_journal_issue                   35
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              11185
_journal_page_last               11191
_journal_paper_doi               10.1021/jacs.6b04984
_journal_volume                  138
_journal_year                    2016
_chemical_formula_moiety         'C78 H107 Fe3 K N8 O6'
_chemical_formula_sum            'C78 H107 Fe3 K N8 O6'
_chemical_formula_weight         1459.36
_space_group_crystal_system      monoclinic
_space_group_IT_number           9
_space_group_name_Hall           'C -2yc'
_space_group_name_H-M_alt        'C 1 c 1'
_symmetry_space_group_name_Hall  'C -2yc'
_symmetry_space_group_name_H-M   'C 1 c 1'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 95.201(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   27.2669(19)
_cell_length_b                   18.0306(4)
_cell_length_c                   20.0074(4)
_cell_measurement_reflns_used    83817
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      68.9
_cell_measurement_theta_min      2.2
_cell_volume                     9795.9(8)
_computing_cell_refinement
'CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)'
_computing_data_collection
'CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)'
_computing_data_reduction
'CrystalClear-SM Expert 2.0 r15 (Rigaku, 2011)'
_computing_molecular_graphics
; 
Dolomanov, O.V.; Bourhis, L.J.; Gildea, R.J.; Howard, J.A.K.; Puschmann, H., 
OLEX2: A complete structure solution, refinement and analysis program 
(2009). J. Appl. Cryst., 42, 339-341. 
;
_computing_publication_material  'SHELXL-2013/2 (Sheldrick, 2014)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXT-2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      93(2)
_diffrn_detector_area_resol_mean 22.2
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Rigaku Saturn 944+ CCD'
_diffrn_measurement_method       \w
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54187
_diffrn_reflns_av_R_equivalents  0.2035
_diffrn_reflns_av_unetI/netI     0.1222
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -28
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            116614
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        54.231
_diffrn_reflns_theta_max         54.231
_diffrn_reflns_theta_min         2.942
_diffrn_source                   'Rotating Anode'
_exptl_absorpt_coefficient_mu    4.234
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.587
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private Communication'
_exptl_crystal_colour            Red
_exptl_crystal_density_diffrn    0.990
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Needle
_exptl_crystal_F_000             3104
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.080
_exptl_crystal_size_min          0.080
_refine_diff_density_max         0.219
_refine_diff_density_min         -0.267
_refine_diff_density_rms         0.039
_refine_ls_abs_structure_details
; 
 Refined as an inversion twin. 
;
_refine_ls_abs_structure_Flack   0.486(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.889
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     896
_refine_ls_number_reflns         11702
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      0.888
_refine_ls_R_factor_all          0.0744
_refine_ls_R_factor_gt           0.0435
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0131P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0709
_refine_ls_wR_factor_ref         0.0791
_reflns_Friedel_coverage         0.998
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     1.000
_reflns_number_gt                7701
_reflns_number_total             11702
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ja6b04984_si_002.cif
_cod_data_source_block           11
_cod_depositor_comments
'Adding full bibliography for 4125204--4125208.cif.'
_cod_database_code               4125208
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.282
_shelx_estimated_absorpt_t_max   0.728
_shelx_res_checksum              54217
_shelx_hkl_checksum              66660
_shelx_fab_checksum              88938