Systematic Approach for the Construction of Niobium and Tantalum Sulfide Clusters.
Gómez, Manuel; Hernández-Prieto, Cristina; Martín, Avelino; Mena, Miguel; Santamaría, Cristina; Inorganic chemistry 55 (2016) 3815–3821; doi:10.1021/acs.inorgchem.5b02816

data_4347161
_publ_section_title
;
 Systematic Approach for the Construction of Niobium and Tantalum Sulfide
 Clusters.
;
_journal_issue                   8
_journal_name_full               'Inorganic chemistry'
_journal_page_first              3815
_journal_page_last               3821
_journal_paper_doi               10.1021/acs.inorgchem.5b02816
_journal_volume                  55
_journal_year                    2016
_chemical_formula_moiety         'C36 H56 Cl4 N8 Nb4 S4'
_chemical_formula_sum            'C36 H56 Cl4 N8 Nb4 S4'
_chemical_formula_weight         1242.56
_space_group_IT_number           148
_space_group_name_Hall           '-R 3'
_space_group_name_H-M_alt        'R -3 :H'
_symmetry_cell_setting           trigonal
_symmetry_Int_Tables_number      148
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            9
_cell_length_a                   36.9399(5)
_cell_length_b                   36.9399(5)
_cell_length_c                   13.2662(4)
_cell_measurement_reflns_used    292
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      20
_cell_measurement_theta_min      3
_cell_measurement_wavelength     0.71073
_cell_volume                     15677.2(6)
_computing_cell_refinement
'Dirax/lsq (Duisenberg & Schreurs, 1989-2000)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction        'EvalCCD (Duisenberg & Schreurs 1990-2000)'
_computing_molecular_graphics    'DIAMOND (Brandenburg, 2006)'
_computing_publication_material  'WinGX publication routines (Farrugia, 2012)'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-2013/1 (Sheldrick, 2008)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       'CCD rotation images, thick slices'
_diffrn_orient_matrix_UB_11      0.01
_diffrn_orient_matrix_UB_12      0
_diffrn_orient_matrix_UB_13      0
_diffrn_orient_matrix_UB_21      0
_diffrn_orient_matrix_UB_22      0.01
_diffrn_orient_matrix_UB_23      0
_diffrn_orient_matrix_UB_31      0
_diffrn_orient_matrix_UB_32      0
_diffrn_orient_matrix_UB_33      0.01
_diffrn_radiation_monochromator  'horizonally mounted graphite crystal'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1495
_diffrn_reflns_av_unetI/netI     0.0807
_diffrn_reflns_Laue_measured_fraction_full 0.998
_diffrn_reflns_Laue_measured_fraction_max 0.998
_diffrn_reflns_limit_h_max       47
_diffrn_reflns_limit_h_min       -47
_diffrn_reflns_limit_k_max       47
_diffrn_reflns_limit_k_min       -47
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            67136
_diffrn_reflns_point_group_measured_fraction_full 0.998
_diffrn_reflns_point_group_measured_fraction_max 0.998
_diffrn_reflns_reduction_process
;
        Scaled and merged with Sortav
        R.H. Blessing, (1987) Cryst. Rev. 1, 3-58
        R.H. Blessing, (1989) J. Appl. Cryst. 22, 396-397
;
_diffrn_reflns_theta_full        25
_diffrn_reflns_theta_max         27.479
_diffrn_reflns_theta_min         3.136
_diffrn_source                   'Enraf Nonius FR590'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.94
_exptl_absorpt_correction_T_max  1.088
_exptl_absorpt_correction_T_min  0.968
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
 R.H. Blessing, Acta Cryst. (1995), A51, 33-38
;
_exptl_crystal_colour            'light brown'
_exptl_crystal_density_diffrn    1.185
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             5616
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.18
_exptl_crystal_size_min          0.11
_refine_diff_density_max         1.694
_refine_diff_density_min         -0.874
_refine_diff_density_rms         0.142
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     260
_refine_ls_number_reflns         7962
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.1122
_refine_ls_R_factor_gt           0.0586
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0936P)^2^+32.0987P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1417
_refine_ls_wR_factor_ref         0.1718
_reflns_Friedel_coverage         0
_reflns_number_gt                4802
_reflns_number_total             7962
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ic5b02816_si_001.cif
_cod_data_source_block           5a
_cod_database_code               4347161
_shelx_res_checksum              12710
_shelx_hkl_checksum              85150
_shelx_fab_checksum              45259