- A Novel Access to Tetrathiooxalates. Crystal Structure of (NEt4)2
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Key Words: Tetraethylammonium Pentasulfide, Tetraethylammonium Tetrathiooxalate, Benzyltriethylammonium Tetrathiooxalate, Crystal Structure (NEt4)2S5 was prepared from NEt4Cl and Na2S4 in ethanol.Its reaction with boiling acetonitrile yielded tetraethylammonium tetrathiooxalate. (NEt4)2 was also obtained by heating (NEt4)2S5 with tetraethylammonium dithioacetate in ethanol.Benzyltriethylammonium tetrathiooxalate, (NEt3Bz)2*2toluene, crystallized after NEt3BzCl and Na2S4 were heated in acetonitrile on subsequent addition of toluene.The crystal structure of (NEt4)2 was determined by X-ray dif fraction (454 independent observed reflexions, R = 0.047).Crystal data: tetragonal, a = 871.2(1) pm, c = 1566.0(3) pm, space group P42/nmc, Z = 2.The (2-) ion has point symmetry m 2 (D2d), i.e. the dihedral angle between the two CS2 groups is 90 deg.The ethyl groups of the NEt4(1+) ions are disordered in two orientations.
- Bacher, Alfred D.,Sens, Irina,Mueller, Ulrich
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p. 702 - 705
(2007/10/02)
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