Tuning ligand field strength with pendent Lewis acids: access to high spin iron hydrides
Kiernicki, John J.; Shanahan, James P.; Zeller, Matthias; Szymczak, Nathaniel K.; Chemical Science  (2019) –; doi:10.1039/C9SC00561G

data_1550984
_publ_section_title
;
 Tuning ligand field strength with pendent Lewis acids: access to high
 spin iron hydrides
;
_journal_name_full               'Chemical Science'
_journal_paper_doi               10.1039/C9SC00561G
_journal_year                    2019
_chemical_formula_sum            'C53 H79 B2 Fe N7 S2'
_chemical_formula_weight         955.82
_chemical_properties_physical    Air-sensitive,Moisture-sensitive,Hygroscopic
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2018-12-10 deposited with the CCDC.    2019-04-26 downloaded from the CCDC.
;
_cell_angle_alpha                92.316(3)
_cell_angle_beta                 99.766(2)
_cell_angle_gamma                99.769(2)
_cell_formula_units_Z            2
_cell_length_a                   8.8548(4)
_cell_length_b                   17.4697(7)
_cell_length_c                   17.4739(8)
_cell_measurement_reflns_used    9112
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      79.6539
_cell_measurement_theta_min      5.1533
_cell_volume                     2618.6(2)
_computing_cell_refinement       'SAINT V8.38A (Bruker, 2016)'
_computing_data_collection       'Apex3 v2017.3-0 (Bruker, 2017)'
_computing_data_reduction        'SAINT V8.38A (Bruker, 2016)'
_computing_structure_refinement
;  
SHELXL-2018/3 (Sheldrick, 2015, 2018), 
SHELXLE Rev937 (H\"ubschle et al., 2011)
;
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.967
_diffrn_measured_fraction_theta_max 0.919
_diffrn_measurement_device_type  'Bruker AXS D8 Quest CMOS diffractometer'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  'laterally graded multilayer (Goebel) mirror'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0769
_diffrn_reflns_av_unetI/netI     0.1069
_diffrn_reflns_Laue_measured_fraction_full 0.967
_diffrn_reflns_Laue_measured_fraction_max 0.919
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            34295
_diffrn_reflns_point_group_measured_fraction_full 0.967
_diffrn_reflns_point_group_measured_fraction_max 0.919
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         81.383
_diffrn_reflns_theta_min         3.767
_diffrn_source                   'I-mu-S microsource X-ray tube'
_exptl_absorpt_coefficient_mu    3.364
_exptl_absorpt_correction_T_max  0.329995
_exptl_absorpt_correction_T_min  0.131188
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
TWINABS 2012/1: Krause, L., Herbst-Irmer, R., Sheldrick G.M. & Stalke D.
(2015). J. Appl. Cryst. 48 3-10.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.212
_exptl_crystal_description       needle
_exptl_crystal_F_000             1028
_exptl_crystal_recrystallization_method 'Re-crystallisation from solvent'
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.07
_refine_diff_density_max         3.946
_refine_diff_density_min         -0.728
_refine_diff_density_rms         0.139
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.103
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     595
_refine_ls_number_reflns         10649
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.103
_refine_ls_R_factor_all          0.1355
_refine_ls_R_factor_gt           0.1187
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.2567P)^2^+0.0200P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.3033
_refine_ls_wR_factor_ref         0.3230
_reflns_Friedel_coverage         0.000
_reflns_number_gt                8780
_reflns_number_total             10649
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9sc00561g2.cif
_cod_data_source_block           JK4207_0m
_cod_database_code               1550984
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              49374