data_1000448 _chemical_name_systematic ; Dibarium manganese nickel heptafluoride chloride ; _chemical_formula_structural 'Ba2 Mn Ni F7 Cl' _chemical_formula_sum 'Ba2 Cl F7 Mn Ni' _publ_section_title ; Magnetic properties and neutron diffraction study of the chlorofluoride series Ba2 M M' F7 Cl (M, M' = Mn, Fe, Co, Ni, Zn) ; loop_ _publ_author_name 'Fompeyrine, J' 'Darriet, J' 'Maguer, J-J' 'Greneche, J M' 'Courbion, G' 'Roisnel, T' 'Rodriguez-Carvajal, J' _journal_name_full 'Journal of Solid State Chemistry' _journal_coden_ASTM JSSCBI _journal_volume 131 _journal_year 1997 _journal_page_first 198 _journal_page_last 214 _cell_length_a 7.746(1) _cell_length_b 5.820(1) _cell_length_c 8.898(1) _cell_angle_alpha 90 _cell_angle_beta 106.63(1) _cell_angle_gamma 90 _cell_volume 384.4 _cell_formula_units_Z 2 _symmetry_space_group_name_H-M 'P 1 21/m 1' _symmetry_Int_Tables_number 11 _symmetry_cell_setting monoclinic loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-x,1/2+y,-z' '-x,-y,-z' 'x,1/2-y,z' loop_ _atom_type_symbol _atom_type_oxidation_number Ba2+ 2.000 Mn2+ 2.000 Ni2+ 2.000 Cl1- -1.000 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 Ba1 Ba2+ 2 e 0.323(2) 0.25 0.576(3) 1. 0 d Ba2 Ba2+ 2 e 0.323(1) 0.25 0.081(3) 1. 0 d Mn1 Mn2+ 2 e 0.830(2) 0.25 0.723(3) 0.5 0 d Ni1 Ni2+ 2 e 0.830(2) 0.25 0.723(3) 0.5 0 d Mn2 Mn2+ 2 e 0.799(3) 0.25 0.164(3) 0.5 0 d Ni2 Ni2+ 2 e 0.799(3) 0.25 0.164(3) 0.5 0 d Cl1 Cl1- 2 e 0.881(1) 0.25 0.463(1) 1. 0 d F1 F1- 4 f 0.634(1) 0.004(1) 0.161(2) 1. 0 d F2 F1- 4 f -0.027(1) -0.032(2) 0.823(1) 1. 0 d F3 F1- 4 f 0.631(1) 0.009(1) 0.656(2) 1. 0 d F4 F1- 2 e 0.747(1) 0.25 0.938(2) 1. 0 d _refine_ls_R_factor_all 0.061