Ruddlesden-Popper – Sr3Fe2O7

Jmol.jmolCheckbox(jmolApplet0, "select @144; color magenta; polyhedra bonds (atomno=144 and connected (6)) translucent; zoom 400; moveto 0 { -952 -193 -237 84.54}; zoomto (@144); ; color bonds silver;", "polyhedra (*) delete; select iron; color khaki; color bonds silver; zoom 0", "Show Single Sites") Jmol.jmolCheckbox(jmolApplet0, "polyhedra bonds (iron and connected (6)) translucent; wireframe 0", "polyhedra (iron and visible) delete; wireframe 0.03", "Show Iron Octahedral Sites") Jmol.jmolButton(jmolApplet0, 'load ../model/alexmodel/sr3fe2o7.cif {2 2 2}; axes off; unitcell off; connect (strontium)(oxygen) delete; select strontium; color silver; select iron; color khaki; select *; hide @198,@63,@58,@85,@211,@259,@136,@69,@279,@157,@265,@142,@55,@56,@61,@193,@196,@199,@64,@257,@254,@131,@134,@67,@280,@158,@264,@141,@6,@27,@176,@177,@32,@31,@110,@235,@115,@240,@114,@239,@3,@25,@24,@174,@173,@4,@164,@29,@108,@107,@233,@232,@93,@238,@112,@237,@175,@26,@5,@33,@178,@30,@109,@234,@116,@241,@113,@238,@137,@140,@260,@263,@218,@57,@68,@86,@135,@62,@212,@197,@258,@203,@73,@51,@53,@71,@72,@201,@202,@11,@16,@170,@8,@9,@14,@168,@165,@10,@15,@169,@104,@229,@228,@103,@230,@105,@272,@149269,@267,@222,@224,@223,@100,@130,@17,@52,@20,@21,@22,@75,@76,@148,@149,@271,@269,@102,@167,@7,@1,@2,@101,@111,@166,@172,@147,@138,@139,@195,@194,@200,@54,@49,@50; select *; color bonds silver; zoom 0; wireframe 0.03; moveto { -986 -110 -126 85.82};', "Reset")


Sr3Fe2O7 exists in the Ruddlesden-Popper phase with an infinite number of repeating double layers. It is formed from two perovskite layers of linked FeO6 octahedra separated by Strontium cations.

K2NiF4 | Ca4Mn3O10

Perovskite Structure


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