Synthesis, structure and reactivity of Ni site models of [NiFeSe] hydrogenases.
Wombwell, Claire; Reisner, Erwin; Dalton transactions (Cambridge, England : 2003) 43 (2014) 4483–4493; doi:10.1039/c3dt52967c

data_7028978
_publ_section_title
;
 Synthesis, structure and reactivity of Ni site models of [NiFeSe]
 hydrogenases.
;
_journal_issue                   11
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4483
_journal_page_last               4493
_journal_paper_doi               10.1039/c3dt52967c
_journal_volume                  43
_journal_year                    2014
_chemical_formula_moiety         'C21 H19 Ni S2 Se2 1-, C16 H36 N 1+'
_chemical_formula_sum            'C37 H55 N Ni S2 Se2'
_chemical_formula_weight         794.57
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 94.708(1)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.6327(2)
_cell_length_b                   22.5152(5)
_cell_length_c                   16.1237(5)
_cell_measurement_reflns_used    13397
_cell_measurement_temperature    220(2)
_cell_measurement_theta_max      25.68
_cell_measurement_theta_min      1.00
_cell_volume                     3846.95(16)
_computing_cell_refinement       'HKL Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius B.V. 1998)'
_computing_data_reduction
;
 HKL Denzo and Scalepack (Otwinowski & Minor 1997)
;
_computing_publication_material  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick 1997)'
_computing_structure_solution    'SIR-92 (Altomare et al. 1994)'
_diffrn_ambient_temperature      220(2)
_diffrn_measured_fraction_theta_full 0.974
_diffrn_measured_fraction_theta_max 0.974
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       'Thin slice \w and \f scans'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0768
_diffrn_reflns_av_sigmaI/netI    0.1670
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            35314
_diffrn_reflns_theta_full        25.66
_diffrn_reflns_theta_max         25.66
_diffrn_reflns_theta_min         3.55
_exptl_absorpt_coefficient_mu    2.530
_exptl_absorpt_correction_T_max  0.969
_exptl_absorpt_correction_T_min  0.707
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.372
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1648
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.498
_refine_diff_density_min         -0.649
_refine_diff_density_rms         0.055
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.788
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     304
_refine_ls_number_reflns         7112
_refine_ls_number_restraints     28
_refine_ls_restrained_S_all      0.795
_refine_ls_R_factor_all          0.1336
_refine_ls_R_factor_gt           0.0452
_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^)+(0.0640P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1123
_refine_ls_wR_factor_ref         0.1216
_reflns_number_gt                2736
_reflns_number_total             7112
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt52967c.txt
_cod_data_source_block           er1210
_cod_original_sg_symbol_Hall     '-P 2ybn'
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7028978