Herein,　we　report　on　the　syntheses,　crystal　structures,　and　optical　properties　of　two　new　selenidostannates,　namely,　[Emim](5)[Sn3Se7](2)Cl　(1,　Emim　=　1-ethyl-3-methylimidazolium)　and　[Bzmim](2)[Sn3Se7]　(2,　Bzmim　=　1-benzyl-3-methylimidazolium).　The　ionic　liquids　(Its)　of　[Emim]CI　with　a　short　ethyl　chain　and　[Bzmim]Cl　with　a　bulky　substituent　benzyl　group　were　used　in　the　syntheses　of　compounds　1　and　2,　respectively.　Although　both　the　structures　feature　an　anionic　lamellar　[Sn3Se7](n)(2n-)　layer,　the　packing　of　the　layers　are　dramatically　different;　such　structural　diversity　may　be　ascribed　to　the　difference　of　structure-directing　cations　incorporated　in　between　the　layers,　that　is　[(Emim)(3)Cl](2+)　aggregates　in　1　and　bulky　[Bzmim](+)　in　2,　respectively.　(C)　2016　Elsevier　B.V.　All　rights　reserved.