Novel Class of Heterometallic Cubane and Boride Clusters Containing Heavier Group 16 Elements
Arunabha Thakur; Soumik Sao; V. Ramkumar; Sundargopal Ghosh; Inorganic Chemistry 51 (2012) 8322–8330; doi:10.1021/ic3008602

data_4329880
_publ_section_title
;
 Novel Class of Heterometallic Cubane and Boride Clusters Containing
 Heavier Group 16 Elements
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              8322
_journal_page_last               8330
_journal_paper_doi               10.1021/ic3008602
_journal_volume                  51
_journal_year                    2012
_chemical_formula_moiety         'C22 H38 B4 Cl Mo2 O Te '
_chemical_formula_sum            'C22 H38 B4 Cl Mo2 O Te'
_chemical_formula_weight         716.69
_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                   15.2196(4)
_cell_length_b                   16.0129(3)
_cell_length_c                   22.6286(5)
_cell_measurement_reflns_used    5430
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      26.5
_cell_measurement_theta_min      2.8
_cell_volume                     5514.8(2)
_computing_cell_refinement       'APEX2/SAINT (Bruker, 2004)'
_computing_data_collection       'APEX2 (Bruker, 2004)'
_computing_data_reduction        'SAINT/XPREP (Bruker, 2004)'
_computing_molecular_graphics
'ORTEP3 (Farrugia, 1997) and Mercury (Bruno et al., 2002)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altornare et al., 1993)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker axs kappa apex2 CCD Diffractometer'
_diffrn_measurement_method       '\w and \f 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  0.0315
_diffrn_reflns_av_sigmaI/netI    0.0335
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            18343
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.24
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    2.056
_exptl_absorpt_correction_T_max  0.861
_exptl_absorpt_correction_T_min  0.581
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 1999)'
_exptl_crystal_colour            black
_exptl_crystal_density_diffrn    1.726
_exptl_crystal_description       block
_exptl_crystal_F_000             2808
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.10
_refine_diff_density_max         1.013
_refine_diff_density_min         -1.422
_refine_diff_density_rms         0.557
_refine_ls_extinction_coef       0.00210(14)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.119
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     314
_refine_ls_number_reflns         4831
_refine_ls_number_restraints     4
_refine_ls_restrained_S_all      1.120
_refine_ls_R_factor_all          0.0636
_refine_ls_R_factor_gt           0.0405
_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^)+(0.0607P)^2^+2.8125P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0983
_refine_ls_wR_factor_ref         0.1162
_reflns_number_gt                3668
_reflns_number_total             4831
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic3008602_si_001_2.cif
_cod_data_source_block           shelxl2
_cod_original_sg_symbol_Hall     '-P 2ac 2ab '
_cod_database_code               4329880