#------------------------------------------------------------------------------ #$Date: 2016-02-21 00:03:34 +0000 (Sun, 21 Feb 2016) $ #$Revision: 176798 $ #$URL: svn://www.crystallography.net/cod/cif/2/23/90/2239016.cif $ #------------------------------------------------------------------------------ # # This file is available in the Crystallography Open Database (COD), # http://www.crystallography.net/ # # All data on this site have been placed in the public domain by the # contributors. # data_2239016 loop_ _publ_author_name 'Lee, Yoonjeong' 'Yoon, Woojin' 'Yun, Hoseop' _publ_section_title ; The mixed-metal tris(disulfide) thiophosphate, KNb~1.77~Ta~0.23~PS~10~ ; _journal_issue 2 _journal_name_full 'Acta Crystallographica Section E' _journal_page_first i8 _journal_paper_doi 10.1107/S1600536814000592 _journal_volume 70 _journal_year 2014 _chemical_formula_iupac 'K Nb1.77 Ta0.23 P S10' _chemical_formula_sum 'K Nb1.77 P S10 Ta0.23' _chemical_formula_weight 596.52 _chemical_name_common ; Potassium niobium tris(disulfide) tantalum thiophosphate ; _chemical_name_systematic 'catena-Poly[potassium [tri-\m-disulfido-\m-tetrathiophosphato-di[niobate(IV)/tantalate(IV)(0.885/0.115)]]]' _space_group_IT_number 29 _symmetry_cell_setting orthorhombic _symmetry_space_group_name_Hall 'P 2c -2ac' _symmetry_space_group_name_H-M 'P c a 21' _audit_creation_method 'WinGX routine CIF_UPDATE' _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_formula_units_Z 4 _cell_length_a 13.0049(3) _cell_length_b 7.5262(2) _cell_length_c 13.3616(3) _cell_measurement_reflns_used 10926 _cell_measurement_temperature 290.0(10) _cell_measurement_theta_max 27.43 _cell_measurement_theta_min 3.05 _cell_volume 1307.80(5) _computing_cell_refinement 'RAPID-AUTO (Rigaku, 2006)' _computing_data_collection 'RAPID-AUTO (Rigaku, 2006)' _computing_data_reduction 'RAPID-AUTO (Rigaku, 2006)' _computing_molecular_graphics 'locally modified version of ORTEP (Johnson, 1965)' _computing_publication_material 'WinGX (Farrugia, 2012)' _computing_structure_refinement 'SHELXL97 (Sheldrick, 2008)' _computing_structure_solution 'SHELXS97 (Sheldrick, 2008)' _diffrn_ambient_temperature 290.0(10) _diffrn_measured_fraction_theta_full 0.999 _diffrn_measured_fraction_theta_max 0.999 _diffrn_measurement_device_type 'Rigaku R-AXIS RAPID S' _diffrn_measurement_method \w _diffrn_radiation_monochromator graphite _diffrn_radiation_source 'sealed X-ray tube' _diffrn_radiation_type MoK\a _diffrn_radiation_wavelength 0.71073 _diffrn_reflns_av_R_equivalents 0.031 _diffrn_reflns_limit_h_max 16 _diffrn_reflns_limit_h_min -16 _diffrn_reflns_limit_k_max 9 _diffrn_reflns_limit_k_min -9 _diffrn_reflns_limit_l_max 17 _diffrn_reflns_limit_l_min -17 _diffrn_reflns_number 12074 _diffrn_reflns_theta_full 27.43 _diffrn_reflns_theta_max 27.43 _diffrn_reflns_theta_min 3.05 _diffrn_standards_decay_% 0 _diffrn_standards_interval_count 0 _diffrn_standards_interval_time 0 _diffrn_standards_number 0 _exptl_absorpt_coefficient_mu 5.446 _exptl_absorpt_correction_T_max 1.000 _exptl_absorpt_correction_T_min 0.724 _exptl_absorpt_correction_type multi-scan _exptl_absorpt_process_details '(ABSCOR; Higashi, 1995)' _exptl_crystal_colour black _exptl_crystal_density_diffrn 3.03 _exptl_crystal_density_method 'not measured' _exptl_crystal_description needle _exptl_crystal_F_000 1133 _exptl_crystal_size_max 0.320 _exptl_crystal_size_mid 0.060 _exptl_crystal_size_min 0.040 _refine_diff_density_max 0.398 _refine_diff_density_min -0.642 _refine_ls_abs_structure_details 'Flack (1983)' _refine_ls_abs_structure_Flack 0.102(14) _refine_ls_extinction_method none _refine_ls_goodness_of_fit_ref 1.077 _refine_ls_hydrogen_treatment undef _refine_ls_matrix_type full _refine_ls_number_parameters 130 _refine_ls_number_reflns 2974 _refine_ls_number_restraints 1 _refine_ls_restrained_S_all 1.077 _refine_ls_R_factor_all 0.021 _refine_ls_R_factor_gt 0.0193 _refine_ls_shift/su_max 0.001 _refine_ls_shift/su_mean 0 _refine_ls_structure_factor_coef Fsqd _refine_ls_weighting_details 'calc w=1/[\s^2^(Fo^2^)+(0.0132P)^2^+0.4965P] where P=(Fo^2^+2Fc^2^)/3' _refine_ls_weighting_scheme calc _refine_ls_wR_factor_ref 0.0403 _reflns_number_gt 2842 _reflns_number_total 2974 _reflns_threshold_expression >2\s(I) _cod_data_source_file ru2056sup1.cf _cod_data_source_block I _cod_original_cell_volume 1307.81(6) _cod_database_code 2239016 _cod_database_fobs_code 2239016 loop_ _symmetry_equiv_pos_as_xyz 'x, y, z' '-x, -y, z+1/2' '-x+1/2, y, z+1/2' 'x+1/2, -y, z' loop_ _atom_site_type_symbol _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv _atom_site_adp_type _atom_site_calc_flag _atom_site_refinement_flags _atom_site_occupancy K K 0.38318(10) 0.50405(16) 0.30118(10) 0.0643(3) Uani d . 1 Nb Nb1 0.024329(14) 0.05323(3) 0.03456(2) 0.01373(8) Uani d P 0.8870(16) Ta Ta1 0.024329(14) 0.05323(3) 0.03456(2) 0.01373(8) Uani d P 0.1130(16) Nb Nb2 0.313802(14) 0.07133(3) 0.03507(2) 0.01349(8) Uani d P 0.8848(16) Ta Ta2 0.313802(14) 0.07133(3) 0.03507(2) 0.01349(8) Uani d P 0.1152(16) P P 0.16059(6) 0.40111(13) 0.11222(8) 0.02029(19) Uani d . 1 S S1 0.03152(5) 0.39563(11) 0.02331(9) 0.0241(2) Uani d . 1 S S2 0.05537(7) 0.15129(15) 0.40771(7) 0.0231(2) Uani d . 1 S S3 0.15181(9) 0.58446(14) 0.21735(9) 0.0393(3) Uani d . 1 S S4 0.16755(6) 0.14082(12) 0.16603(6) 0.01689(19) Uani d . 1 S S5 0.29233(6) 0.41195(10) 0.02861(11) 0.0285(2) Uani d . 1 S S6 0.33066(6) 0.05475(12) 0.40561(7) 0.0189(2) Uani d . 1 S S7 0.44837(7) 0.13315(14) 0.16957(6) 0.0207(2) Uani d . 1 S S8 0.60107(7) 0.10612(14) 0.39842(7) 0.0235(2) Uani d . 1 S S9 0.60965(7) 0.11936(13) 0.66622(6) 0.0201(2) Uani d . 1 S S10 0.67408(5) 0.16023(11) 0.00053(6) 0.01866(18) Uani d . 1 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 K 0.0846(8) 0.0454(7) 0.0629(8) 0.0038(6) -0.0317(7) 0.0034(6) Nb1 0.00877(11) 0.01781(13) 0.01460(12) -0.00086(7) 0.00002(16) 0.00118(14) Ta1 0.00877(11) 0.01781(13) 0.01460(12) -0.00086(7) 0.00002(16) 0.00118(14) Nb2 0.00838(11) 0.01692(13) 0.01516(12) 0.00106(7) 0.00005(15) -0.00009(14) Ta2 0.00838(11) 0.01692(13) 0.01516(12) 0.00106(7) 0.00005(15) -0.00009(14) P 0.0158(4) 0.0172(4) 0.0279(5) 0.0018(3) -0.0010(4) -0.0027(4) S1 0.0156(3) 0.0208(4) 0.0359(6) 0.0022(3) -0.0026(5) 0.0045(5) S2 0.0139(4) 0.0342(6) 0.0213(5) -0.0031(4) -0.0019(4) 0.0071(4) S3 0.0450(6) 0.0281(5) 0.0449(7) 0.0070(5) -0.0044(5) -0.0179(5) S4 0.0138(4) 0.0200(5) 0.0169(4) 0.0004(3) 0.0002(3) -0.0011(4) S5 0.0160(3) 0.0192(4) 0.0503(6) -0.0005(3) 0.0068(6) 0.0056(6) S6 0.0125(4) 0.0275(5) 0.0166(4) 0.0000(3) 0.0002(3) 0.0027(4) S7 0.0168(4) 0.0267(5) 0.0185(5) 0.0007(4) -0.0008(4) -0.0050(4) S8 0.0150(4) 0.0354(6) 0.0202(5) 0.0047(4) 0.0029(4) 0.0084(5) S9 0.0166(4) 0.0253(5) 0.0183(5) 0.0017(4) -0.0009(4) -0.0033(4) S10 0.0152(4) 0.0169(4) 0.0239(4) -0.0001(3) -0.0012(3) 0.0018(3) loop_ _atom_type_symbol _atom_type_description _atom_type_scat_dispersion_real _atom_type_scat_dispersion_imag _atom_type_scat_source K K 0.2009 0.2494 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Nb Nb -2.0727 0.6215 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' Ta Ta -0.7052 6.5227 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' P P 0.1023 0.0942 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' S S 0.1246 0.1234 'International Tables Vol C Tables 4.2.6.8 and 6.1.1.4' loop_ _geom_angle_atom_site_label_1 _geom_angle_atom_site_label_2 _geom_angle_atom_site_label_3 _geom_angle_site_symmetry_1 _geom_angle_site_symmetry_3 _geom_angle S3 K S1 . 3 132.02(6) S3 K S9 . 2_664 71.66(3) S1 K S9 3 2_664 133.45(4) S3 K S7 . . 101.77(4) S1 K S7 3 . 100.34(4) S9 K S7 2_664 . 114.03(5) S3 K S2 . 4_565 123.90(4) S1 K S2 3 4_565 67.78(3) S9 K S2 2_664 4_565 66.39(3) S7 K S2 . 4_565 128.37(5) S3 K S6 . . 97.35(4) S1 K S6 3 . 59.70(3) S9 K S6 2_664 . 166.57(4) S7 K S6 . . 59.64(3) S2 K S6 4_565 . 127.02(4) S3 K S3 . 4_565 142.46(6) S1 K S3 3 4_565 84.85(3) S9 K S3 2_664 4_565 87.91(4) S7 K S3 . 4_565 57.68(3) S2 K S3 4_565 4_565 71.02(3) S6 K S3 . 4_565 97.02(4) S3 K S10 . 2_665 86.32(4) S1 K S10 3 2_665 65.83(3) S9 K S10 2_664 2_665 79.53(3) S7 K S10 . 2_665 165.76(4) S2 K S10 4_565 2_665 51.37(3) S6 K S10 . 2_665 108.05(4) S3 K S10 4_565 2_665 121.36(4) S8 Nb1 S7 3_554 4_455 111.20(3) S8 Nb1 S2 3_554 2_554 48.02(4) S7 Nb1 S2 4_455 2_554 88.85(3) S8 Nb1 S9 3_554 3_554 91.47(3) S7 Nb1 S9 4_455 3_554 48.13(3) S2 Nb1 S9 2_554 3_554 107.82(3) S8 Nb1 S6 3_554 3_554 89.43(3) S7 Nb1 S6 4_455 3_554 141.65(3) S2 Nb1 S6 2_554 3_554 81.51(3) S9 Nb1 S6 3_554 3_554 168.03(3) S8 Nb1 S10 3_554 4_455 118.08(3) S7 Nb1 S10 4_455 4_455 94.41(3) S2 Nb1 S10 2_554 4_455 79.05(3) S9 Nb1 S10 3_554 4_455 140.41(3) S6 Nb1 S10 3_554 4_455 47.37(3) S8 Nb1 S1 3_554 . 79.67(3) S7 Nb1 S1 4_455 . 128.22(3) S2 Nb1 S1 2_554 . 125.92(3) S9 Nb1 S1 3_554 . 82.47(3) S6 Nb1 S1 3_554 . 85.96(3) S10 Nb1 S1 4_455 . 125.95(3) S8 Nb1 S4 3_554 . 155.83(3) S7 Nb1 S4 4_455 . 86.48(3) S2 Nb1 S4 2_554 . 153.05(3) S9 Nb1 S4 3_554 . 88.51(3) S6 Nb1 S4 3_554 . 85.81(3) S10 Nb1 S4 4_455 . 74.88(3) S1 Nb1 S4 . . 76.37(3) S8 Nb1 Nb2 3_554 4_455 55.28(2) S7 Nb1 Nb2 4_455 4_455 55.97(2) S2 Nb1 Nb2 2_554 4_455 54.06(2) S9 Nb1 Nb2 3_554 4_455 53.81(2) S6 Nb1 Nb2 3_554 4_455 134.55(2) S10 Nb1 Nb2 4_455 4_455 121.05(2) S1 Nb1 Nb2 . 4_455 110.949(17) S4 Nb1 Nb2 . 4_455 138.22(2) S8 Nb1 Ta2 3_554 4_455 55.28(2) S7 Nb1 Ta2 4_455 4_455 55.97(2) S2 Nb1 Ta2 2_554 4_455 54.06(2) S9 Nb1 Ta2 3_554 4_455 53.81(2) S6 Nb1 Ta2 3_554 4_455 134.55(2) S10 Nb1 Ta2 4_455 4_455 121.05(2) S1 Nb1 Ta2 . 4_455 110.949(17) S4 Nb1 Ta2 . 4_455 138.22(2) Nb2 Nb1 Ta2 4_455 4_455 0.000(16) S9 Nb2 S2 2_654 3_554 110.53(3) S9 Nb2 S8 2_654 2_654 91.66(3) S2 Nb2 S8 3_554 2_654 47.92(4) S9 Nb2 S7 2_654 . 48.00(3) S2 Nb2 S7 3_554 . 88.20(2) S8 Nb2 S7 2_654 . 107.81(3) S9 Nb2 S6 2_654 3_554 138.29(3) S2 Nb2 S6 3_554 3_554 92.96(3) S8 Nb2 S6 2_654 3_554 78.85(3) S7 Nb2 S6 . 3_554 171.69(3) S9 Nb2 S10 2_654 4_455 91.05(3) S2 Nb2 S10 3_554 4_455 121.90(3) S8 Nb2 S10 2_654 4_455 79.64(3) S7 Nb2 S10 . 4_455 137.57(3) S6 Nb2 S10 3_554 4_455 47.41(3) S9 Nb2 S5 2_654 . 130.06(4) S2 Nb2 S5 3_554 . 79.06(4) S8 Nb2 S5 2_654 . 123.38(4) S7 Nb2 S5 . . 85.22(4) S6 Nb2 S5 3_554 . 86.92(3) S10 Nb2 S5 4_455 . 126.41(3) S9 Nb2 S4 2_654 . 86.29(3) S2 Nb2 S4 3_554 . 154.41(3) S8 Nb2 S4 2_654 . 154.60(3) S7 Nb2 S4 . . 89.49(3) S6 Nb2 S4 3_554 . 85.91(3) S10 Nb2 S4 4_455 . 75.09(3) S5 Nb2 S4 . . 75.35(3) S9 Nb2 Ta1 2_654 4 55.46(2) S2 Nb2 Ta1 3_554 4 55.12(2) S8 Nb2 Ta1 2_654 4 53.89(2) S7 Nb2 Ta1 . 4 53.97(2) S6 Nb2 Ta1 3_554 4 132.67(2) S10 Nb2 Ta1 4_455 4 116.78(2) S5 Nb2 Ta1 . 4 115.097(18) S4 Nb2 Ta1 . 4 138.44(2) S9 Nb2 Nb1 2_654 4 55.46(2) S2 Nb2 Nb1 3_554 4 55.12(2) S8 Nb2 Nb1 2_654 4 53.89(2) S7 Nb2 Nb1 . 4 53.97(2) S6 Nb2 Nb1 3_554 4 132.67(2) S10 Nb2 Nb1 4_455 4 116.78(2) S5 Nb2 Nb1 . 4 115.097(18) S4 Nb2 Nb1 . 4 138.44(2) Ta1 Nb2 Nb1 4 4 0.000(14) S3 P S5 . . 114.15(6) S3 P S1 . . 112.22(6) S5 P S1 . . 111.63(7) S3 P S4 . . 114.42(7) S5 P S4 . . 100.89(5) S1 P S4 . . 102.44(5) P S1 Nb1 . . 90.91(4) P S1 K . 3_554 104.02(5) Nb1 S1 K . 3_554 108.29(4) S8 S2 Ta2 4_455 3 67.02(4) S8 S2 Nb2 4_455 3 67.02(4) Ta2 S2 Nb2 3 3 0.000(15) S8 S2 Nb1 4_455 2 65.01(4) Ta2 S2 Nb1 3 2 70.83(3) Nb2 S2 Nb1 3 2 70.83(3) S8 S2 Ta1 4_455 2 65.01(4) Ta2 S2 Ta1 3 2 70.83(3) Nb2 S2 Ta1 3 2 70.83(3) Nb1 S2 Ta1 2 2 0.000(11) S8 S2 K 4_455 4_465 145.11(5) Ta2 S2 K 3 4_465 147.85(4) Nb2 S2 K 3 4_465 147.85(4) Nb1 S2 K 2 4_465 115.97(4) Ta1 S2 K 2 4_465 115.97(4) P S3 K . . 93.51(5) P S3 K . 4_465 98.23(5) K S3 K . 4_465 136.62(6) P S4 Nb2 . . 89.36(4) P S4 Nb1 . . 88.54(4) Nb2 S4 Nb1 . . 91.02(3) P S5 Nb2 . . 91.88(4) S10 S6 Ta1 2_655 3 66.59(3) S10 S6 Nb1 2_655 3 66.59(3) Ta1 S6 Nb1 3 3 0.000(13) S10 S6 Ta2 2_655 3 66.37(3) Ta1 S6 Ta2 3 3 94.95(3) Nb1 S6 Ta2 3 3 94.95(3) S10 S6 Nb2 2_655 3 66.37(3) Ta1 S6 Nb2 3 3 94.95(3) Nb1 S6 Nb2 3 3 94.95(3) Ta2 S6 Nb2 3 3 0.000(6) S10 S6 K 2_655 . 162.09(5) Ta1 S6 K 3 . 96.98(3) Nb1 S6 K 3 . 96.98(3) Ta2 S6 K 3 . 110.13(4) Nb2 S6 K 3 . 110.13(4) S9 S7 Ta1 2_654 4 66.86(4) S9 S7 Nb1 2_654 4 66.86(4) Ta1 S7 Nb1 4 4 0.000(14) S9 S7 Nb2 2_654 . 64.03(3) Ta1 S7 Nb2 4 . 70.06(2) Nb1 S7 Nb2 4 . 70.06(2) S9 S7 K 2_654 . 132.92(5) Ta1 S7 K 4 . 159.16(5) Nb1 S7 K 4 . 159.16(5) Nb2 S7 K . . 110.02(4) S2 S8 Nb1 4 3 66.97(4) S2 S8 Ta1 4 3 66.97(4) Nb1 S8 Ta1 3 3 0.000(12) S2 S8 Nb2 4 2_655 65.06(4) Nb1 S8 Nb2 3 2_655 70.83(3) Ta1 S8 Nb2 3 2_655 70.83(3) S2 S8 Ta2 4 2_655 65.06(4) Nb1 S8 Ta2 3 2_655 70.83(3) Ta1 S8 Ta2 3 2_655 70.83(3) Nb2 S8 Ta2 2_655 2_655 0.000(13) S7 S9 Ta2 2_655 2_655 67.97(4) S7 S9 Nb2 2_655 2_655 67.97(4) Ta2 S9 Nb2 2_655 2_655 0.000(13) S7 S9 Nb1 2_655 3 65.01(3) Ta2 S9 Nb1 2_655 3 70.73(2) Nb2 S9 Nb1 2_655 3 70.73(2) S7 S9 Ta1 2_655 3 65.01(3) Ta2 S9 Ta1 2_655 3 70.73(2) Nb2 S9 Ta1 2_655 3 70.73(2) Nb1 S9 Ta1 3 3 0.000(11) S7 S9 K 2_655 2_665 141.46(5) Ta2 S9 K 2_655 2_665 149.10(4) Nb2 S9 K 2_655 2_665 149.10(4) Nb1 S9 K 3 2_665 124.00(4) Ta1 S9 K 3 2_665 124.00(4) S6 S10 Ta2 2_654 4 66.22(3) S6 S10 Nb2 2_654 4 66.22(3) Ta2 S10 Nb2 4 4 0.000(17) S6 S10 Nb1 2_654 4 66.04(3) Ta2 S10 Nb1 4 4 94.62(3) Nb2 S10 Nb1 4 4 94.62(3) S6 S10 Ta1 2_654 4 66.04(3) Ta2 S10 Ta1 4 4 94.62(3) Nb2 S10 Ta1 4 4 94.62(3) Nb1 S10 Ta1 4 4 0.000(16) S6 S10 K 2_654 2_664 94.94(4) Ta2 S10 K 4 2_664 136.76(3) Nb2 S10 K 4 2_664 136.76(3) Nb1 S10 K 4 2_664 113.42(3) Ta1 S10 K 4 2_664 113.42(3) loop_ _geom_bond_atom_site_label_1 _geom_bond_atom_site_label_2 _geom_bond_site_symmetry_2 _geom_bond_distance _geom_bond_publ_flag K S3 . 3.2671(16) ? K S1 3 3.2720(16) ? K S9 2_664 3.3606(15) ? K S7 . 3.4064(16) ? K S2 4_565 3.7107(16) ? K S6 . 3.7213(15) ? K S3 4_565 3.7288(19) ? K S10 2_665 3.7461(16) ? Nb1 S8 3_554 2.4753(10) y Nb1 S7 4_455 2.4895(9) y Nb1 S2 2_554 2.5133(10) y Nb1 S9 3_554 2.5255(9) y Nb1 S6 3_554 2.5545(9) y Nb1 S10 4_455 2.5653(8) y Nb1 S1 . 2.5831(9) y Nb1 S4 . 2.6438(8) y Nb1 Nb2 4_455 2.8939(3) y Nb1 Ta2 4_455 2.8939(3) y Nb2 S9 2_654 2.4742(9) y Nb2 S2 3_554 2.4805(9) y Nb2 S8 2_654 2.5185(10) y Nb2 S7 . 2.5513(9) y Nb2 S6 3_554 2.5568(9) y Nb2 S10 4_455 2.5597(8) y Nb2 S5 . 2.5802(8) y Nb2 S4 . 2.6369(8) y Nb2 Ta1 4 2.8939(3) y Nb2 Nb1 4 2.8939(3) y P S3 . 1.9725(14) y P S5 . 2.0470(14) y P S1 . 2.0568(13) y P S4 . 2.0888(14) y S1 K 3_554 3.2720(16) ? S2 S8 4_455 2.0302(16) y S2 Ta2 3 2.4805(9) ? S2 Nb2 3 2.4805(9) ? S2 Nb1 2 2.5133(10) ? S2 Ta1 2 2.5133(10) ? S2 K 4_465 3.7107(16) ? S3 K 4_465 3.7288(19) ? S6 S10 2_655 2.0568(13) y S6 Ta1 3 2.5545(9) ? S6 Nb1 3 2.5545(9) ? S6 Ta2 3 2.5568(9) ? S6 Nb2 3 2.5568(9) ? S7 S9 2_654 2.0452(15) y S7 Ta1 4 2.4895(9) ? S7 Nb1 4 2.4895(9) ? S8 S2 4 2.0302(17) ? S8 Nb1 3 2.4753(10) ? S8 Ta1 3 2.4753(10) ? S8 Nb2 2_655 2.5185(10) ? S8 Ta2 2_655 2.5185(10) ? S9 S7 2_655 2.0452(15) ? S9 Ta2 2_655 2.4742(9) ? S9 Nb2 2_655 2.4742(9) ? S9 Nb1 3 2.5255(9) ? S9 Ta1 3 2.5255(9) ? S9 K 2_665 3.3606(15) ? S10 S6 2_654 2.0568(13) ? S10 Ta2 4 2.5597(8) ? S10 Nb2 4 2.5597(8) ? S10 Nb1 4 2.5653(8) ? S10 Ta1 4 2.5653(8) ? S10 K 2_664 3.7461(16) ?