Deciphering the mechanism of O<sub>2</sub> reduction with electronically tunable non-heme iron enzyme model complexes.
Surendhran, Roshaan; D'Arpino, Alexander A; Sciscent, Bao Y.; Cannella, Anthony F.; Friedman, Alan E.; MacMillan, Samantha N.; Gupta, Rupal; Lacy, David C.; Chemical science 9 (2018) 5773–5780; doi:10.1039/c8sc01621f

data_1549505
_publ_section_title
;
 Deciphering the mechanism of O<sub>2</sub> reduction with electronically
 tunable non-heme iron enzyme model complexes.
;
_journal_issue                   26
_journal_name_full               'Chemical science'
_journal_page_first              5773
_journal_page_last               5780
_journal_paper_doi               10.1039/c8sc01621f
_journal_volume                  9
_journal_year                    2018
_chemical_absolute_configuration ad
_chemical_formula_moiety         'C26 H24 Fe N4 O5, 2(C4 H12 N), C2 H3 N'
_chemical_formula_sum            'C36 H51 Fe N7 O5'
_chemical_formula_weight         717.68
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2017-08-17
_audit_creation_method
;
Olex2 1.2-ac3
(compiled 2016.08.26 svn.r3337 for Rigaku Oxford Diffraction, GUI svn.r5221)
;
_audit_update_record
;
2018-03-28 deposited with the CCDC.
2018-06-05 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.0981(3)
_cell_length_b                   17.4420(4)
_cell_length_c                   19.3054(4)
_cell_measurement_reflns_used    14870
_cell_measurement_temperature    100.01(10)
_cell_measurement_theta_max      31.0200
_cell_measurement_theta_min      2.1090
_cell_volume                     3737.01(15)
_computing_cell_refinement       'CrysAlisPro 1.171.39.29d (Rigaku OD, 2017)'
_computing_data_collection       'CrysAlisPro 1.171.39.29d (Rigaku OD, 2017)'
_computing_data_reduction        'CrysAlisPro 1.171.39.29d (Rigaku OD, 2017)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_environment      N~2~
_diffrn_ambient_temperature      100.01(10)
_diffrn_detector                 'CCD plate'
_diffrn_detector_type            HyPix
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w     -7.00  28.00   0.50    2.25    --    5.32  57.00  90.00   70
  2  \w    -23.00   6.00   0.50    2.25    --    5.32 -99.00-180.00   58
  3  \w    -15.00  15.00   0.50    2.25    --   -6.42 -99.00-120.00   60
  4  \w    -66.00  -2.00   0.50    2.25    --   -6.42 -28.00 145.00  128
  5  \w    -21.00   4.00   0.50    2.25    --   -6.42 -99.00  60.00   50
  6  \w    -26.00  -1.00   0.50    2.25    --   -6.42 -99.00  90.00   50
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'XtaLAB Synergy, Dualflex, HyPix'
_diffrn_measurement_method       '\w scans'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0288600000
_diffrn_orient_matrix_UB_12      0.0347568000
_diffrn_orient_matrix_UB_13      0.0094560000
_diffrn_orient_matrix_UB_21      -0.0522559000
_diffrn_orient_matrix_UB_22      -0.0207908000
_diffrn_orient_matrix_UB_23      0.0097483000
_diffrn_orient_matrix_UB_31      0.0228779000
_diffrn_orient_matrix_UB_32      -0.0036798000
_diffrn_orient_matrix_UB_33      0.0341269000
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0318
_diffrn_reflns_av_unetI/netI     0.0307
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            23314
_diffrn_reflns_point_group_measured_fraction_full 0.991
_diffrn_reflns_point_group_measured_fraction_max 0.991
_diffrn_reflns_theta_full        25.681
_diffrn_reflns_theta_max         25.681
_diffrn_reflns_theta_min         2.110
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_type              'PhotonJet (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    0.453
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  0.433
_exptl_absorpt_correction_type   gaussian
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.39.29d (Rigaku Oxford Diffraction, 2017)
Numerical absorption correction based on gaussian integration over
            a multifaceted crystal model
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'clear yellow'
_exptl_crystal_density_diffrn    1.276
_exptl_crystal_description       block
_exptl_crystal_F_000             1528
_exptl_crystal_size_max          0.296
_exptl_crystal_size_mid          0.249
_exptl_crystal_size_min          0.202
_refine_diff_density_max         0.182
_refine_diff_density_min         -0.281
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details
;
 Flack x determined using 2845 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   -0.007(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.042
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     452
_refine_ls_number_reflns         7049
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.042
_refine_ls_R_factor_all          0.0263
_refine_ls_R_factor_gt           0.0248
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0301P)^2^+0.5428P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0592
_refine_ls_wR_factor_ref         0.0600
_reflns_Friedel_coverage         0.773
_reflns_Friedel_fraction_full    0.980
_reflns_Friedel_fraction_max     0.980
_reflns_number_gt                6772
_reflns_number_total             7049
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c8sc01621f2.cif
_cod_data_source_block           rlacy9_abs
_cod_depositor_comments
'Adding full bibliography for 1549501--1549509.cif.'
_cod_database_code               1549505
_shelx_shelxl_version_number     2016/6
_chemical_oxdiff_formula         C36H51FeN2O5
_chemical_oxdiff_usercomment     'Crystallized from MeCN/ether.'
_reflns_odcompleteness_completeness 99.80
_reflns_odcompleteness_iscentric 1
_reflns_odcompleteness_theta     26.67
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Secondary CH2 refined with riding coordinates:
 C8(H8A,H8B), C9(H9A,H9B), C17(H17A,H17B)
2.b Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C5(H5), C12(H12), C13(H13), C14(H14),
 C15(H15), C16(H16), C20(H20), C21(H21), C22(H22), C23(H23), C24(H24)
2.c Idealised Me refined as rotating group:
 C26(H26A,H26B,H26C), C31(H31A,H31B,H31C), C32(H32A,H32B,H32C), C33(H33A,H33B,
 H33C), C34(H34A,H34B,H34C), C27(H27A,H27B,H27C), C28(H28A,H28B,H28C), C29(H29A,
 H29B,H29C), C30(H30A,H30B,H30C), C36(H36A,H36B,H36C)
;
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 1.129
_oxdiff_exptl_absorpt_empirical_full_min 0.919