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Main group chalcogenidometalates are well known by people for their structural diversity,and interesting optical and electrical properties.1,2 Three lanthanide(Ⅲ)complexes containing tetraselenidoantimonate ligand [H2tepa][{Ln(tepa)(SbSe4)}2(OH)2](Ln = Eu(1),Gd(2),Ho(3))(tepa = tetraethylenepentamine)were solvothermally prepared by reactions Sb,Se and Ln2O3 in tetraethylenepentamine(tepa).