Electron localization in a mixed-valence diniobium benzene complex
Gianetti, Thomas L.; Nocton, Grégory; Minasian, Stefan G.; Kaltsoyannis, Nikolas; Kilcoyne, A. L. David; Kozimor, Stosh A.; Shuh, David K.; Tyliszczak, Tolek; Bergman, Robert G.; Arnold, John; Chem. Sci. 6 (2015) 993–; doi:10.1039/C4SC02705A

data_1518249
_publ_section_title
;
 Electron localization in a mixed-valence diniobium benzene complex
;
_journal_issue                   2
_journal_name_full               'Chem. Sci.'
_journal_page_first              993
_journal_paper_doi               10.1039/C4SC02705A
_journal_volume                  6
_journal_year                    2015
_chemical_formula_moiety         'C65 H66 B F20 N3 Nb O2'
_chemical_formula_sum            'C65 H66 B F20 N3 Nb O2'
_chemical_formula_weight         1404.93
_chemical_name_common            'Complex 3'
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.5590(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.1669(5)
_cell_length_b                   17.1279(5)
_cell_length_c                   19.7092(5)
_cell_measurement_reflns_used    9754
_cell_measurement_temperature    80(2)
_cell_measurement_theta_max      25.40
_cell_measurement_theta_min      2.34
_cell_volume                     6132.4(3)
_computing_cell_refinement       'Bruker APEX2 v.2011.4'
_computing_data_collection       'Bruker APEX2 v.2011.4'
_computing_data_reduction        'Bruker APEX2 v.2011.4'
_computing_molecular_graphics    ORTEP-32
_computing_publication_material  WinGX
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    SIR-2004
_diffrn_ambient_temperature      80(2)
_diffrn_detector_area_resol_mean 8.366
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-I CCD'
_diffrn_measurement_method       '\f and \w 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  0.0347
_diffrn_reflns_av_sigmaI/netI    0.0282
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            57885
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.42
_diffrn_reflns_theta_min         1.58
_exptl_absorpt_coefficient_mu    0.305
_exptl_absorpt_correction_T_max  0.9415
_exptl_absorpt_correction_T_min  0.9140
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.522
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rode
_exptl_crystal_F_000             2876
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.774
_refine_diff_density_min         -0.488
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.030
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     842
_refine_ls_number_reflns         11263
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.030
_refine_ls_R_factor_all          0.0458
_refine_ls_R_factor_gt           0.0363
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0501P)^2^+6.8467P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0946
_refine_ls_wR_factor_ref         0.1014
_reflns_number_gt                9552
_reflns_number_total             11263
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c4sc02705a2.cif
_cod_data_source_block           (2)
_cod_depositor_comments
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 Removing duplicate rows from the ATOM_TYPE loop.

 Antanas Vaitkus,
 2018-08-10

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2827 2014-09-09 07:05:25Z andrius 

 Adding full bibliography for 1518248--1518251.cif.
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_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1518249