[FeFe]-hydrogenase active site mimics containing pyridyl-functionalized phosphine ligands: Synthesis, characterization and electrochemical investigation
Hu, Shu-Peng; Zhang, Li; Wu, Yu; Feng, Jian-Shen; Wu, Sheng; Xie, Bin; Zou, Li-Ke; Inorganica Chimica Acta 504 (2020) 119435–; doi:10.1016/j.ica.2020.119435

data_1565240
_publ_section_title
;
 [FeFe]-hydrogenase active site mimics containing pyridyl-functionalized
 phosphine ligands: Synthesis, characterization and electrochemical
 investigation
;
_journal_name_full               'Inorganica Chimica Acta'
_journal_page_first              119435
_journal_paper_doi               10.1016/j.ica.2020.119435
_journal_volume                  504
_journal_year                    2020
_chemical_formula_moiety         'C24 H18 Fe2 N O5 P S2, C H2 Cl2'
_chemical_formula_sum            'C25 H20 Cl2 Fe2 N O5 P S2'
_chemical_formula_weight         692.11
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-2017/1
_cell_angle_alpha                91.813(3)
_cell_angle_beta                 100.173(2)
_cell_angle_gamma                98.334(3)
_cell_formula_units_Z            2
_cell_length_a                   8.310(2)
_cell_length_b                   9.129(2)
_cell_length_c                   19.215(4)
_cell_measurement_reflns_used    5449
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.2911
_cell_measurement_theta_min      2.1573
_cell_volume                     1417.2(5)
_computing_data_collection       'SAINT V8.38A (?, 2016)'
_computing_data_reduction        'SAINT V8.38A (?, 2016)'
_computing_structure_refinement  'SHELXL-2017/1 (Sheldrick, 2017)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and 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  0.0255
_diffrn_reflns_av_unetI/netI     0.0396
_diffrn_reflns_Laue_measured_fraction_full 0.990
_diffrn_reflns_Laue_measured_fraction_max 0.990
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            9464
_diffrn_reflns_point_group_measured_fraction_full 0.990
_diffrn_reflns_point_group_measured_fraction_max 0.990
_diffrn_reflns_theta_full        25.010
_diffrn_reflns_theta_max         25.010
_diffrn_reflns_theta_min         2.259
_exptl_absorpt_coefficient_mu    1.452
_exptl_absorpt_correction_T_max  0.8115
_exptl_absorpt_correction_T_min  0.7799
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; Bruker, 2000'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.622
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             700
_exptl_crystal_size_max          0.180
_exptl_crystal_size_mid          0.170
_exptl_crystal_size_min          0.150
_refine_diff_density_max         1.101
_refine_diff_density_min         -0.686
_refine_diff_density_rms         0.111
_refine_ls_extinction_coef       .
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.192
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4937
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.192
_refine_ls_R_factor_all          0.0629
_refine_ls_R_factor_gt           0.0555
_refine_ls_shift/su_max          0.037
_refine_ls_shift/su_mean         0.007
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0180P)^2^+9.6526P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1281
_refine_ls_wR_factor_ref         0.1313
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                4352
_reflns_number_total             4937
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            complex1-revision.cif
_cod_data_source_block           complex1
_cod_database_code               1565240
_shelx_shelxl_version_number     2017/1
_shelx_estimated_absorpt_t_min   0.780
_shelx_estimated_absorpt_t_max   0.812
_shelx_res_checksum              36166
_shelx_hkl_checksum              66282