data_1000085 _chemical_name_systematic 'Dirubidium pentachromium fluoride' _chemical_formula_structural 'Rb2 Cr5 F17' _chemical_formula_sum 'Cr5 F17 Rb2' _publ_section_title ; Crystal structure determination of Rb~2~Cr~5~F~17~ ; loop_ _publ_author_name 'Laligant, Y' 'Le Bail, A' 'Ferey, G' _journal_name_full ; European Journal of Solid State Inorganic Chemistry ; _journal_coden_ASTM EJSCE5 _journal_volume 26 _journal_year 1989 _journal_page_first 445 _journal_page_last 454 _cell_length_a 7.418(2) _cell_length_b 25.670(5) _cell_length_c 14.624(2) _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 2784.7 _cell_formula_units_Z 8 _symmetry_space_group_name_H-M 'C m c m' _symmetry_Int_Tables_number 63 _symmetry_cell_setting orthorhombic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,-y,-z' 'x,y,1/2-z' 'x,-y,1/2+z' '-x,-y,-z' '-x,y,z' '-x,-y,1/2+z' '-x,y,1/2-z' '1/2+x,1/2+y,z' '1/2+x,1/2-y,-z' '1/2+x,1/2+y,1/2-z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2-y,-z' '1/2-x,1/2+y,z' '1/2-x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' loop_ _atom_type_symbol _atom_type_oxidation_number Rb1+ 1.000 Cr3+ 3.000 F1- -1.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Rb1 Rb1+ 8 f 0. 0.2495(1) 0.5306(1) 1. 0 d Rb2 Rb1+ 4 c 0. 0.2513(2) 0.25 1. 0 d Rb3 Rb1+ 4 a 0. 0. 0. 1. 0 d Cr1 Cr3+ 16 h 0.2466(3) 0.3786(1) 0.3794(3) 1. 0 d Cr2 Cr3+ 16 h 0.2492(3) 0.8753(1) 0.8715(3) 1. 0 d Cr3 Cr3+ 8 g 0.2495(5) 0.5009(3) 0.25 1. 0 d F1 F1- 16 h 0.2072(14) 0.3099(4) 0.4017(7) 1. 0 d F2 F1- 16 h 0.2031(14) 0.8072(4) 0.8976(7) 1. 0 d F3 F1- 16 h 0.2955(14) 0.4501(4) 0.3430(7) 1. 0 d F4 F1- 16 h 0.2870(14) 0.9503(4) 0.8468(7) 1. 0 d F5 F1- 8 f 0. 0.3968(5) 0.3921(8) 1. 0 d F6 F1- 8 f 0. 0.8890(5) 0.8521(8) 1. 0 d F7 F1- 8 f 0. 0.8636(5) 0.3616(8) 1. 0 d F8 F1- 8 f 0. 0.3680(5) 0.9020(9) 1. 0 d F9 F1- 16 h 0.2919(9) 0.3975(2) 0.4989(8) 1. 0 d F10 F1- 8 g 0.2038(18) 0.3637(5) 0.25 1. 0 d F11 F1- 8 g 0.2945(18) 0.8591(5) 0.75 1. 0 d F12 F1- 4 c 0. 0.4820(7) 0.25 1. 0 d F13 F1- 4 c 0. 0.9833(7) 0.75 1. 0 d loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_22 _atom_site_aniso_U_23 _atom_site_aniso_U_33 Rb1 0.0103(6) 0. 0. 0.0132(7) 0.0006(12) 0.0180(6) Rb2 0.0282(13) 0. 0. 0.0293(15) 0. 0.0201(11) Rb3 0.0323(16) 0. 0. 0.0193(14) 0.0060(15) 0.0274(13) Cr1 0.0035(3) -0.0002(4) 0.0005(4) 0.0054(4) -0.0013(4) 0.0028(6) Cr2 0.0035(3) -0.0002(4) 0.0005(4) 0.0054(4) -0.0013(4) 0.0028(6) Cr3 0.0031(7) -0.0004(8) 0. 0.0055(8) 0. 0.0075(7) F1 0.0138(18) -0.0009(15) -0.0014(15) 0.0082(18) 0.0031(16) 0.0171(20) F2 0.0138(18) -0.0009(15) -0.0014(15) 0.0082(18) 0.0031(16) 0.0171(20) F3 0.0081(18) -0.0028(14) -0.0023(14) 0.0087(16) 0.0039(14) 0.0140(17) F4 0.0081(18) -0.0028(14) -0.0023(14) 0.0087(16) 0.0039(14) 0.0140(17) F5 0.0051(28) 0. 0. 0.0180(41) -0.0003(37) 0.0129(39) F6 0.0051(28) 0. 0. 0.0180(41) -0.0003(37) 0.0129(39) F7 0.0050(28) 0. 0. 0.0167(39) -0.0029(43) 0.0173(47) F8 0.0050(28) 0. 0. 0.0167(39) -0.0029(43) 0.0173(47) F9 0.0140(34) 0. 0.0062(42) 0.0113(27) 0. 0.0056(21) F10 0.013(3) -0.0013(40) 0. 0.0124(31) 0. 0.0062(22) F11 0.013(3) -0.0013(40) 0. 0.0124(31) 0. 0.0062(22) F12 0.0042(34) 0. 0. 0.0093(40) 0. 0.0191(42) F13 0.0042(34) 0. 0. 0.0093(40) 0. 0.0191(42) _refine_ls_R_factor_all 0.056