The syntheses, structures and properties of three new lanthanoid thioarsenates: the only example of thioarsenate acting as a ligand to a lanthanide complex.
Zhou, Jian; Liu, Xing; Li, Rong; An, Litao; Hu, Feilong; Chen, Rong; Wei, Yuanchun; Dalton transactions (Cambridge, England : 2003) 42 (2013) 11155–11162; doi:10.1039/c3dt50858g

data_7021678
_publ_section_title
;
 The syntheses, structures and properties of three new lanthanoid
 thioarsenates: the only example of thioarsenate acting as a ligand to a
 lanthanide complex.
;
_journal_issue                   31
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              11155
_journal_page_last               11162
_journal_paper_doi               10.1039/c3dt50858g
_journal_volume                  42
_journal_year                    2013
_chemical_formula_moiety         'C8 H26 As Er N6 S4 '
_chemical_formula_sum            'C8 H26 As Er N6 S4'
_chemical_formula_weight         576.81
_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                 97.53(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.6537(19)
_cell_length_b                   13.118(3)
_cell_length_c                   14.603(3)
_cell_measurement_temperature    293(2)
_cell_volume                     1833.3(7)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 7.31
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Rigaku Mercury'
_diffrn_measurement_method       \w
_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  0.0426
_diffrn_reflns_av_sigmaI/netI    0.0408
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            9642
_diffrn_reflns_theta_full        25.10
_diffrn_reflns_theta_max         25.10
_diffrn_reflns_theta_min         2.10
_exptl_absorpt_coefficient_mu    6.824
_exptl_absorpt_correction_T_max  0.3319
_exptl_absorpt_correction_T_min  0.2253
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    2.090
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1124
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.920
_refine_diff_density_min         -1.052
_refine_diff_density_rms         0.158
_refine_ls_extinction_coef       0.00043(7)
_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   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         3253
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.013
_refine_ls_R_factor_all          0.0370
_refine_ls_R_factor_gt           0.0249
_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^)+(0.0254P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0518
_refine_ls_wR_factor_ref         0.0544
_reflns_number_gt                2735
_reflns_number_total             3253
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3dt50858g.txt
_cod_data_source_block           2
_cod_original_cell_volume        1833.3(6)
_cod_original_sg_symbol_Hall     '-P 2ybc '
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_original_formula_sum        'C8 H26 As Er N6 S4 '
_cod_database_code               7021678