Formation of Aminoxy and Oxo Complexes from the Reaction of Nb(NMe2)5 with O2 and the Crystal Structure of Nb(NEt2)5
Shu-Jian Chen; Jian Zhang; Xianghua Yu; Xianhui Bu; Xue-Tai Chen; Zi-Ling Xue; Inorganic Chemistry 49 (2010) 4017–4022; doi:10.1021/ic901889m

data_4315431
_publ_section_title
;
 Formation of Aminoxy and Oxo Complexes from the Reaction of Nb(NMe2)5
 with O2 and the Crystal Structure of Nb(NEt2)5
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              4017
_journal_page_last               4022
_journal_paper_doi               10.1021/ic901889m
_journal_volume                  49
_journal_year                    2010
_chemical_formula_moiety         'C10H30N5O2Nb '
_chemical_formula_sum            'C10 H30 N5 Nb O2'
_chemical_formula_weight         345.30
_chemical_name_common            Tris(dimethylamido)bis(dimethylamidooxo)Niobium
_chemical_name_systematic
; 
Tris(dimethylamido)bis(dimethylamidooxo)Niobium
;
_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     PATTSON
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 100.393(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.272(2)
_cell_length_b                   13.052(3)
_cell_length_c                   16.254(4)
_cell_measurement_temperature    173(2)
_cell_volume                     1726.1(7)
_computing_cell_refinement       'SMART, Bruker (2000)'
_computing_data_collection       'SMART, Bruker (2000)'
_computing_data_reduction        'SHELXS-97 (Sheldrick, 1990)'
_computing_molecular_graphics    'SHELXL-97 (Sheldrick, 1997)'
_computing_publication_material  'SHELXTL, Bruker (2000)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       Multi-scan
_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  0.0694
_diffrn_reflns_av_sigmaI/netI    0.0583
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            17519
_diffrn_reflns_theta_full        28.37
_diffrn_reflns_theta_max         28.37
_diffrn_reflns_theta_min         2.01
_exptl_absorpt_coefficient_mu    0.701
_exptl_absorpt_correction_T_max  0.8442
_exptl_absorpt_correction_T_min  0.7764
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS, Bruker (2000)'
_exptl_crystal_colour            Yellow
_exptl_crystal_density_diffrn    1.329
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       fragment
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.38
_exptl_crystal_size_mid          0.28
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.831
_refine_diff_density_min         -1.242
_refine_diff_density_rms         0.163
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.052
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     173
_refine_ls_number_reflns         4205
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.052
_refine_ls_R_factor_all          0.0575
_refine_ls_R_factor_gt           0.0430
_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^)+(0.0756P)^2^+5.4393P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1159
_refine_ls_wR_factor_ref         0.1532
_reflns_number_gt                3442
_reflns_number_total             4205
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic901889m_si_002_1.cif
_cod_data_source_block           chenmono1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to the built-in table from CIF Core dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 
;
_cod_original_formula_sum        'C10H30N5O2Nb '
_cod_database_code               4315431