Activation of Atmospheric Nitrogen and Azobenzene NN Bond Cleavage by a Transient Nb(III) Complex
Kilgore, Uriah J.; Yang, Xiaofan; Tomaszewski, John; Huffman, John C.; Mindiola, Daniel J.; Inorganic Chemistry 45 (2006) 10712–10721; doi:10.1021/ic061642b

data_4333181
_publ_section_title
;
 Activation of Atmospheric Nitrogen and Azobenzene NN Bond Cleavage by a
 Transient Nb(III) Complex
;
_journal_issue                   26
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10712
_journal_page_last               10721
_journal_paper_doi               10.1021/ic061642b
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'C52 H78 Cl2 N3 Nb O3.5 P2'
_chemical_formula_weight         1026.92
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 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                 99.902(19)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.463(11)
_cell_length_b                   12.192(8)
_cell_length_c                   24.389(11)
_cell_measurement_reflns_used    6196
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      18.02
_cell_measurement_theta_min      2.32
_cell_volume                     5408(5)
_computing_cell_refinement       'SAINT (Bruker, 2003)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT (Bruker, 2003)'
_computing_molecular_graphics    'SHELXTL (Bruker, 2003), XTEL (loc. libr.)'
_computing_publication_material  'SHELXTL (Bruker, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      95(2)
_diffrn_detector                 'CCD area detector'
_diffrn_detector_area_resol_mean 44.52
_diffrn_detector_type            'Bruker SMART 6000'
_diffrn_measured_fraction_theta_full 0.964
_diffrn_measured_fraction_theta_max 0.964
_diffrn_measurement_details
'0.5 degree frames measured for 1 seconds each'
_diffrn_measurement_device       'three-circle goniometer with fixed chi'
_diffrn_measurement_device_type  'Bruker Platform goniometer'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_monochromator  'diamond 1 1 1'
_diffrn_radiation_source         synchrotron
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.49595
_diffrn_reflns_av_R_equivalents  0.0792
_diffrn_reflns_av_sigmaI/netI    0.1297
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            33661
_diffrn_reflns_theta_full        18.05
_diffrn_reflns_theta_max         18.05
_diffrn_reflns_theta_min         0.59
_exptl_absorpt_coefficient_mu    0.802
_exptl_absorpt_correction_T_max  0.9763
_exptl_absorpt_correction_T_min  0.8065
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, R. Blessing; 1995'
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.261
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       irregular
_exptl_crystal_F_000             2176
_exptl_crystal_size_max          0.06
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.02
_refine_diff_density_max         1.982
_refine_diff_density_min         -2.270
_refine_diff_density_rms         0.164
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.00(4)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     974
_refine_ls_number_reflns         20738
_refine_ls_number_restraints     246
_refine_ls_restrained_S_all      1.053
_refine_ls_R_factor_all          0.1156
_refine_ls_R_factor_gt           0.0898
_refine_ls_shift/su_max          0.076
_refine_ls_shift/su_mean         0.007
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1639P)^2^+1.4413P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2345
_refine_ls_wR_factor_ref         0.2587
_reflns_number_gt                15832
_reflns_number_total             20738
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic061642bsup4.cif
_cod_data_source_block           06008A
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_exptl_absorpt_correction_type' value 'multi-scans' was replaced
with the value 'multi-scan' as specified in the replacement file
'src/cod-tools/trunk/data/replacement-values/replacement_values.lst'.

Automatic conversion script
Id: cif_fix_values 5376 2017-05-30 11:51:03Z andrius 
;
_cod_original_sg_symbol_H-M      'P2(1)   '
_cod_original_formula_sum        'C52 H78 Cl2 N3 Nb O3.50 P2'
_cod_database_code               4333181