Magnetic, Spectroscopic, and Structural Studies of Dicobalt Hydroxamates and Model Hydrolases
David A. Brown; W. Errington; W. K. Glass; W. Haase; T. J. Kemp; H. Nimir; S. M. Ostrovsky; R. Werner; Inorganic Chemistry 40 (2001) 5962–5971; doi:10.1021/ic0103345

data_4320465
_publ_section_title
;
 Magnetic, Spectroscopic, and Structural Studies of Dicobalt Hydroxamates
 and Model Hydrolases
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              5962
_journal_page_last               5971
_journal_paper_doi               10.1021/ic0103345
_journal_volume                  40
_journal_year                    2001
_chemical_formula_sum            'C20 H46 Co2 F3 N7 O10 S'
_chemical_formula_weight         751.56
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 94.47
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   11.0745(6)
_cell_length_b                   13.6540(7)
_cell_length_c                   22.6864(11)
_cell_measurement_reflns_used    6386
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      28.49
_cell_measurement_theta_min      1.74
_cell_volume                     3420.0(3)
_computing_cell_refinement       'SAINT (Siemens, 1995)'
_computing_data_collection       'SMART (Siemens, 1994)'
_computing_data_reduction        SAINT
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_detector_area_resol_mean 8.192
_diffrn_measured_fraction_theta_full 0.930
_diffrn_measured_fraction_theta_max 0.930
_diffrn_measurement_device_type
; 
Siemens SMART CCD area-detector diffractometer
;
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0231
_diffrn_reflns_av_sigmaI/netI    0.0231
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            20291
_diffrn_reflns_theta_full        28.49
_diffrn_reflns_theta_max         28.49
_diffrn_reflns_theta_min         1.74
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    1.103
_exptl_absorpt_correction_T_max  0.8791
_exptl_absorpt_correction_T_min  0.6668
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.460
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1568
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.623
_refine_diff_density_min         -0.542
_refine_diff_density_rms         0.062
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     419
_refine_ls_number_reflns         8065
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0542
_refine_ls_R_factor_gt           0.0394
_refine_ls_shift/su_max          0.035
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0337P)^2^+3.5211P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0866
_refine_ls_wR_factor_ref         0.0966
_reflns_number_gt                6596
_reflns_number_total             8065
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ic0103345_2.cif
_cod_data_source_block           has1
_cod_database_code               4320465