Active-Site Models for the Nickel-Iron Hydrogenases: Effects of Ligands on Reactivity and Catalytic Properties
Maria E. Carroll; Bryan E. Barton; Danielle L. Gray; Amanda E. Mack; Thomas B. Rauchfuss; Inorganic Chemistry 50 (2011) 9554–9563; doi:10.1021/ic2012759

data_4326370
_publ_contact_author
; 
Danielle L. Gray 
University of Illinois 
School of Chemical Sciences, Box 59-1 
505 South Mathews Avenue 
Urbana, Illinois  61801 
USA 
;
_publ_contact_author_email       dgray@illinois.edu
_publ_contact_author_fax         '1  217 244 8068'
_publ_contact_author_phone       '1  217 244 1708'
_publ_section_title
;
 Active-Site Models for the Nickel-Iron Hydrogenases: Effects of Ligands
 on Reactivity and Catalytic Properties
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9554
_journal_page_last               9563
_journal_paper_doi               10.1021/ic2012759
_journal_volume                  50
_journal_year                    2011
_chemical_formula_moiety         'C32 H55 Fe Ni O3 P2 S2, C H2 Cl2, B F4'
_chemical_formula_sum            'C33 H57 B Cl2 F4 Fe Ni O3 P2 S2'
_chemical_formula_weight         900.12
_chemical_name_systematic
; 
? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_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-97
_audit_update_record
; 
? 
;
_cell_angle_alpha                70.372(4)
_cell_angle_beta                 71.803(3)
_cell_angle_gamma                63.754(3)
_cell_formula_units_Z            2
_cell_length_a                   12.2002(7)
_cell_length_b                   12.2730(7)
_cell_length_c                   16.2834(9)
_cell_measurement_reflns_used    6037
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      26.89
_cell_measurement_theta_min      2.58
_cell_volume                     2020.7(2)
_computing_cell_refinement       'SAINT V7.23A (Bruker, 2005)'
_computing_data_collection       'APEX2 V2.0-1 (Bruker, 2004)'
_computing_data_reduction
; 
SAINT V7.23A, XPREP V2005/2, SADABS V2007/4, TWINABS V2007/5 
(Bruker, 2005 & 2007) 
;
_computing_molecular_graphics
; 
SHELXTL V6.12 (Bruker, 2005), CrystalMaker v2.1.3 (CrystalMaker, 1994) 
;
_computing_publication_material  'XCIF V6.12 (Bruker, 2005)'
_computing_structure_refinement  'SHELXTL V6.12 (Bruker, 2005)'
_computing_structure_solution    'SHELXTL V6.12 (Bruker, 2005)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'Bruker Kappa/ApexII CCD'
_diffrn_measurement_method       'profile data from \f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_wavelength_id  ba03las
_diffrn_reflns_av_R_equivalents  0.0611
_diffrn_reflns_av_sigmaI/netI    0.0525
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            34909
_diffrn_reflns_theta_full        25.39
_diffrn_reflns_theta_max         25.39
_diffrn_reflns_theta_min         1.90
_exptl_absorpt_coefficient_mu    1.190
_exptl_absorpt_correction_T_max  0.9552
_exptl_absorpt_correction_T_min  0.7147
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   'SHELXTL/XPREP V2005/2 (Bruker, 2005)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.479
_exptl_crystal_description       prism
_exptl_crystal_F_000             940
_exptl_crystal_id                ba03las
_exptl_crystal_preparation
; 
The data crystal was mounted using ??oil (Parantone-N, Exxon) to a 
??0.3 mm cryo-loop (Hampton Research)?? 
??0.2 mm Kapton micromount (Thorne, 2003)?? 
with the (??) scattering 
planes roughly normal to the spindle axis. 
;
_exptl_crystal_size_max          0.377
_exptl_crystal_size_mid          0.185
_exptl_crystal_size_min          0.044
_refine_diff_density_max         0.584
_refine_diff_density_min         -0.560
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.036
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     492
_refine_ls_number_reflns         7415
_refine_ls_number_restraints     240
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0577
_refine_ls_R_factor_gt           0.0354
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0383P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0752
_refine_ls_wR_factor_ref         0.0842
_reflns_number_gt                5527
_reflns_number_total             7415
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic2012759_si_002_1.cif
_cod_data_source_block           ba03las
_cod_original_sg_symbol_H-M      'P -1 '
_cod_database_code               4326370