Protonation/Reduction of Carbonyl-Rich Diiron Complexes and the Direct Observation of Triprotonated Species: Insights into the Electrocatalytic Mechanism of Hydrogen Formation
Liu, Yu-Chiao; Chu, Kai-Ti; Huang, Yi-Lan; Hsu, Cheng-Huey; Lee, Gene-Hsiang; Tseng, Mei-Chun; Chiang, Ming-Hsi; ACS Catalysis 6 (2016) 2559–; doi:10.1021/acscatal.5b02646

data_4513845
_publ_section_title
;
 Protonation/Reduction of Carbonyl-Rich Diiron Complexes and the Direct
 Observation of Triprotonated Species: Insights into the Electrocatalytic
 Mechanism of Hydrogen Formation
;
_journal_issue                   4
_journal_name_full               'ACS Catalysis'
_journal_page_first              2559
_journal_paper_doi               10.1021/acscatal.5b02646
_journal_volume                  6
_journal_year                    2016
_chemical_formula_sum            'C11 H7 F9 Fe2 O15 S5'
_chemical_formula_weight         822.17
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           11
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 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                 104.1454(13)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   6.4147(4)
_cell_length_b                   18.5996(11)
_cell_length_c                   11.5206(6)
_cell_measurement_reflns_used    2557
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.05
_cell_measurement_theta_min      2.19
_cell_volume                     1332.85(13)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker SMART'
_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      150(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'BRUKER SMART APEXCCD area detector'
_diffrn_measurement_method       'omega 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  0.0344
_diffrn_reflns_av_sigmaI/netI    0.0401
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -22
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            8728
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         1.82
_exptl_absorpt_coefficient_mu    1.609
_exptl_absorpt_correction_T_max  0.9384
_exptl_absorpt_correction_T_min  0.6028
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (BRUKER, 2001)'
_exptl_crystal_colour            orange-yellow
_exptl_crystal_density_diffrn    2.049
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             812
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.985
_refine_diff_density_min         -0.798
_refine_diff_density_rms         0.100
_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     233
_refine_ls_number_reflns         3148
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.106
_refine_ls_R_factor_all          0.0673
_refine_ls_R_factor_gt           0.0577
_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^)+(0.0509P)^2^+3.2154P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1301
_refine_ls_wR_factor_ref         0.1360
_reflns_number_gt                2736
_reflns_number_total             3148
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cs5b02646_si_002.cif
_cod_data_source_block           ic17352
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_exptl_crystal_density_meas' value 'not_measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4268 2015-11-12 08:31:59Z antanas 

 Adding full bibliography for 4513842--4513845.cif.
;
_cod_original_cell_volume        1332.86(13)
_cod_original_sg_symbol_H-M      P2(1)/m
_cod_database_code               4513845