Coordination complexes of NbX5 (X = F, Cl) with (N,O)- and (O,O)-donor ligands and the first X-ray characterization of a neutral NbF5 adduct.
Bortoluzzi, Marco; Marchetti, Fabio; Pampaloni, Guido; Pucino, Margherita; Zacchini, Stefano; Dalton transactions (Cambridge, England : 2003) 42 (2013) 13054–13064; doi:10.1039/c3dt50930c

data_7023172
_publ_section_title
;
 Coordination complexes of NbX5 (X = F, Cl) with (N,O)- and (O,O)-donor
 ligands and the first X-ray characterization of a neutral NbF5 adduct.
;
_journal_issue                   36
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              13054
_journal_page_last               13064
_journal_paper_doi               10.1039/c3dt50930c
_journal_volume                  42
_journal_year                    2013
_chemical_formula_sum            'C20 H15 Cl6 Nb O2'
_chemical_formula_weight         592.93
_chemical_name_systematic
;
?
;
_space_group_IT_number           61
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   17.275(7)
_cell_length_b                   10.339(4)
_cell_length_c                   25.146(10)
_cell_measurement_reflns_used    5545
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      26.767
_cell_measurement_theta_min      2.358
_cell_volume                     4491(3)
_computing_cell_refinement       'APEX2 (Bruker AXS, 2006)'
_computing_data_collection       'APEX2 (Bruker AXS, 2006)'
_computing_data_reduction        'SAINT (Bruker AXS, 2004)'
_computing_molecular_graphics    'ORTEPII (Johnson, 1996)'
_computing_publication_material  'XCIF (Bruker AXS, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.968
_diffrn_measured_fraction_theta_max 0.968
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1062
_diffrn_reflns_av_sigmaI/netI    0.0513
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       29
_diffrn_reflns_limit_l_min       -29
_diffrn_reflns_number            36139
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         1.62
_exptl_absorpt_coefficient_mu    1.265
_exptl_absorpt_correction_T_max  0.8630
_exptl_absorpt_correction_T_min  0.8043
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details
;
Data were corrected for Lorentz polarization and absorption
effects (empirical absorption correction SADABS).
R(int) = 0.1376 (selected reflections only, before parameter refinement)
R(int) = 0.0826 (selected reflections only, after parameter refinement)
;
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.754
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             2352
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.16
_exptl_crystal_size_min          0.12
_refine_diff_density_max         6.591
_refine_diff_density_min         -1.704
_refine_diff_density_rms         0.225
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.071
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     262
_refine_ls_number_reflns         3843
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.071
_refine_ls_R_factor_all          0.1170
_refine_ls_R_factor_gt           0.0950
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0731P)^2^+145.7321P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2228
_refine_ls_wR_factor_ref         0.2371
_reflns_number_gt                3001
_reflns_number_total             3843
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt50930c.txt
_cod_data_source_block           pbca
_cod_original_sg_symbol_H-M      Pbca
_cod_database_code               7023172