Bis[tris(ethylenediamine)manganese(II)] di-μ-tellurido-bis[ditelluridostannate(IV)] (monoclinic modification)

Abstract

Key indicatorsSingle-crystal X-ray study T = 293 K Mean (C-C) = 0.014 Å R factor = 0.036 wR factor = 0.106 Data-to-parameter ratio = 23.6For details of how these key indicators were automatically derived from the article, see

Syntheses and Structures of Solvated Tetrasodiumtetrachalcogenostannates [Na4(en)4][SnE4] (en = 1,2‐diaminoethane; E = Te, Se), and their Reactions Toward Further Ternary or Quaternary Chalcogenometallates [Mn(en)3]2[Sn2Te6]·4H2O or [Na10(H2O)34][Mn4(μ4‐Se)(SnSe4)4]

“…Coordination numbers for Se atoms are 5 or 8 (Se(1)Sn···N 2 Na 2 , Se(2)Sn···N 4 Na 3 ); coordination numbers for Na ϩ ions are 4 or 6 (Na(1)···Se 4 , Na(2)···Se 2 N 4 , Na(3)···Se 2 N 2 ). involved in the Na/en helixes winding around the 1 ϱ {Na ϩ [SnE 4 ] 4Ϫ } strands are observed: together with Na(1) within the strands and ever two E atoms, the helices appear either as infinite chains (1) or closed, "8"-shaped (2); b) an inversion center in 1 (monoclinic space group P2 1 /c) accords to the occurrence of both clockwise and counterclockwise rotational senses of helical arrangements, whereas in 2 the "8" winds around the one-dimensional strands in ever the same rotational sense, leading to a polar crystal packing (tetragonal space group P4 1 3 is the hydrate of recently reported, solvent free phases [Mn(en) 3 ] 2 [Sn 2 Te 6 ], the known two modifications of which crystallize either in the monoclinic space group P2 1 /n [11] or in the orthorhombic space group Pbca [12]. The cited compounds were obtained by solvothermal reaction of Sn, Te, Mn(OAc) 2 ·4H 2 O and Cs 2 CO 3 in MeOH/en or by solvothermal reaction of SnTe 2 , MnCl 2 and Te in en with ensuing drying by diethyl ether.…”