Synthesis and Reactivity of W3Te74+ Clusters and Chalcogen Exchange in the M3Q7 (M = Mo, W; Q = S, Se, Te) Cluster Family
Maxim N. Sokolov; Pavel A. Abramov; Artem L. Gushchin; Irina V. Kalinina; Dmitry Y. Naumov; Alexander V. Virovets; Eugenia V. Peresypkina; Cristian Vicent; Rosa Llusar; Vladimir P. Fedin; Inorganic Chemistry 44 (2005) 8116–8124; doi:10.1021/ic050962c

data_4309879
_publ_contact_author_address
;Nikolaev Institute of Inorganic Chemistry,
SB Russian Academy of Sciences,
Academition Lavrentiev Avenue 3,
Novosibirsk 90,
630090 Russia
;
_publ_contact_author_email       d.y.naumov@ngs.ru
_publ_contact_author_fax         7(3832)344489
_publ_contact_author_name        'Dr. Dmitry Yu. Naumov'
_publ_contact_author_phone       7(3832)344466
_publ_section_title
;
Synthesis and Reactivity of W3Te74+ Clusters and Chalcogen Exchange in the
M3Q7 (M = Mo, W; Q = S, Se, Te) Cluster Family
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              8116
_journal_page_last               8124
_journal_paper_doi               10.1021/ic050962c
_journal_volume                  44
_journal_year                    2005
_chemical_formula_sum            'C6 Br K3 N6 O6 Se3 Te4 W3'
_chemical_formula_weight         1748.16
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 93.240(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.5031(8)
_cell_length_b                   17.1626(13)
_cell_length_c                   20.4991(19)
_cell_measurement_reflns_used    2356
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      26.23
_cell_measurement_theta_min      2.32
_cell_volume                     2986.8(5)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'Bruker SHELXTL'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 25
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.959
_diffrn_measurement_device_type  'Bruker Nonius X8Apex CCD area-detector'
_diffrn_measurement_method       '\f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0587
_diffrn_reflns_av_sigmaI/netI    0.1201
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            24062
_diffrn_reflns_theta_full        30.00
_diffrn_reflns_theta_max         32.55
_diffrn_reflns_theta_min         2.32
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    20.799
_exptl_absorpt_correction_T_max  0.3684
_exptl_absorpt_correction_T_min  0.1356
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    3.888
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prizm
_exptl_crystal_F_000             3000
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.06
_refine_diff_density_max         2.329
_refine_diff_density_min         -1.993
_refine_diff_density_rms         0.445
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.051(12)
_refine_ls_extinction_coef       0
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.967
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     578
_refine_ls_number_reflns         13468
_refine_ls_number_restraints     49
_refine_ls_restrained_S_all      0.966
_refine_ls_R_factor_all          0.0895
_refine_ls_R_factor_gt           0.0515
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0324P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1116
_refine_ls_wR_factor_ref         0.1211
_reflns_number_gt                9082
_reflns_number_total             13468
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            ic050962csi20050614_030401.cif
_cod_data_source_block           pa63
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4309879