data_1008174 _chemical_name_systematic 'Rubidium tetrachromatoarsenate' _chemical_formula_structural 'Rb3 Cr4 As O16' _chemical_formula_sum 'As Cr4 O16 Rb3' _publ_section_title ; Crystal data for Rb~3~ Cr~4~ P O~16~ and Rb~3~ Cr~4~ As O~16~ ; _publ_author_name 'Averbuch-Pouchot, M T' _journal_name_full ; Zeitschrift fuer Kristallographie (149,1979-) ; _journal_coden_ASTM ZEKRDZ _journal_volume 155 _journal_year 1981 _journal_page_first 315 _journal_page_last 317 _cell_length_a 9.804(6) _cell_length_b 11.96(1) _cell_length_c 14.92(1) _cell_angle_alpha 90 _cell_angle_beta 105.91(1) _cell_angle_gamma 90 _cell_volume 1682.4 _cell_formula_units_Z 4 _exptl_crystal_density_meas 3.14 _symmetry_space_group_name_H-M 'C 1 c 1' _symmetry_Int_Tables_number 9 _symmetry_cell_setting monoclinic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' 'x,-y,1/2+z' '1/2+x,1/2+y,z' '1/2+x,1/2-y,1/2+z'