Synthesis of a diniobium tetraphosphorus complex by a 2(3−1) process
Velian, Alexandra; Cummins, Christopher C.; Chemical Science 3 (2012) 1003–; doi:10.1039/c2sc00931e

data_1515006
_publ_section_title
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 Synthesis of a diniobium tetraphosphorus complex by a 2(3&#x2212;1)
 process
;
_journal_issue                   4
_journal_name_full               'Chemical Science'
_journal_page_first              1003
_journal_paper_doi               10.1039/c2sc00931e
_journal_volume                  3
_journal_year                    2012
_chemical_formula_sum            'C72 H102 Nb2 O6 P4'
_chemical_formula_weight         1373.24
_chemical_name_systematic
;
?
;
_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                 99.909(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.9443(9)
_cell_length_b                   21.5650(11)
_cell_length_c                   17.9908(9)
_cell_measurement_reflns_used    9965
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      69.00
_cell_measurement_theta_min      3.23
_cell_volume                     7240.2(6)
_computing_cell_refinement       'SAINT 7.46A (Bruker-AXS, 2010)'
_computing_data_collection       'APEX2 v2010.7.0 (Bruker-AXS, 2010)'
_computing_data_reduction        'SAINT 7.46A (Bruker-AXS, 2010)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Bruker Smart APEX2 CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0394
_diffrn_reflns_av_sigmaI/netI    0.0265
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            69443
_diffrn_reflns_theta_full        66.59
_diffrn_reflns_theta_max         66.59
_diffrn_reflns_theta_min         3.23
_exptl_absorpt_coefficient_mu    3.784
_exptl_absorpt_correction_T_max  0.8334
_exptl_absorpt_correction_T_min  0.7035
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2009)'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.260
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             2896
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.05
_refine_diff_density_max         1.702
_refine_diff_density_min         -0.386
_refine_diff_density_rms         0.093
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.059
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     856
_refine_ls_number_reflns         12663
_refine_ls_number_restraints     65
_refine_ls_restrained_S_all      1.057
_refine_ls_R_factor_all          0.0444
_refine_ls_R_factor_gt           0.0368
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0606P)^2^+2.5529P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0910
_refine_ls_wR_factor_ref         0.0968
_reflns_number_gt                10890
_reflns_number_total             12663
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2sc00931e.txt
_cod_data_source_block           x8_10012
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/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 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1515006