Solvothermal syntheses and crystal structures of chalcogenides [Ni(en)(3)][Hen]SbSe4 and [Sb(en)(3)]In3Te7

[Ni(en)(3)] [Hen] SbSe4 (1) and [Sb(en)(3)]In3Te7 (2) have been synthesized at 180 degreesC by solvothermal technique by using ethylenediamine(en) as solvent for 7 d. The crystal structures have been determined by single crys tal X-ray diffraction techniques. Compound I shows an isolated structure co ntaining a Zintl anion, [SbSe4](3-), and a complex cation, [Ni(en)(3)](2+), and a monoprotonated en cation [Hen](+). Compound 1 belongs to the triclin ic system, space group P (1) over bar with unit cell parameters: a = 0.881 43(18) nm, b = 0.962 35(19) nm, c = 1.427 8(3) nm, alpha = 104.74(3)degrees , beta = 92.47(3)degrees, gamma = 109.55 (3)degrees, V = 1.092 7(4) nm(3), Z = 2. The structure of compound 2 consists of a Zintl anion, (2)(infinity) [In3Te7](3-) and a complex cation, [Sb(en)(3)](3+). Compound 2 belongs to t he monoclinic system, space group P2(1)/c, with unit cell parameters: a = 1 .069 1 (2) nm, b = 1.693 2 (3) nm, c = 1.515 2 (3) nm, alpha = 90 degrees, beta = 94.86(3)degrees, gamma = 90 degrees, V = 2.732 8 (9) nm(3), Z = 4.