A Series of Novel Organically Templated Germanium Antimony Sulfides

Abstract

A series of novel organically templated germanium antimony sulfides have been solvothermally synthesized and structurally, thermally, and optically characterized. The compound [Me(2)NH(2)](6)[(Ge(2)Sb(2)S(7))(Ge(4)S(10))] (1) features two distinct tetranuclear [Ge(2)Sb(2)S(7)](2-) and [Ge(4)S(10)](4-) isolated clusters. The compound [(Me)(2)NH(2)][DabcoH](2)[Ge(2)Sb(3)S(10)] (2) (Dabco = triethylenediamine) features a 1D-[Ge(2)Sb(3)S(10)](n)(3n-) ribbon constructed with two [GeSbS(5)](n)(3n-) chains bridged by Sb(3+) ion in psi-SbS(4) configuration. Compounds [M(en)(3)][GeSb(2)S(6)] (M = Ni (3), Co (4) en = ethylenediamine) feature the unique 2D grid layer structures of [GeSb(2)S(6)](n)(2n-). The compound [(Me)(2)NH(2)](2)[GeSb(2)S(6)] (5) previously reported by us features a 3D chiral microporous structure with the chiral channels. The optical absorption spectra indicate that all the compounds are wide bandgap semiconductors. Thermal stabilities of these compounds have been investigated by thermogravimetric analyses (TGA).

Surfactant-thermal method to prepare two novel two-dimensional Mn–Sb–S compounds for photocatalytic applications

“…In the asymmetric unit of 2, there are three crystallographically independent Sb atoms (Sb1, Sb2 and Sb3) and all of them form [Sb III S 3 ] 3 À trigonal pyramids through coordinating with three S atoms. The Sb-S distances range from 2.411(4) to 2.619(4) Å, which is similar to the previously reported values in thioantimonate compounds [35][36][37][38]. The Mn atom adopts a distorted octahedral configuration, which is coordinated with five N atoms from one tepa molecule and one S atom (S2) from [Sb III S 3 ] 3 À cluster.…”

Structural Expansion of Chalcogenido Tetrelates in Ionic Liquids by Incorporation of Sulfido Antimonate Units

“…All of these values accord well with the data reported for the [Ge 2 Sb 2 S 7 ] 2− anion in the related, yet overall less complex compound (Me 2 NH 2 ) 6 [Ge 2 Sb 2 S 7 ][Ge 4 S 10 ] (Ge−S term 2.136(2)–2.150(2) Å, Ge−(μ‐S) 2.207(2)–2.236(2) Å, Sb−S 2.442(2)–2.530(2) Å, Sb−Sb 2.824(1) Å; see Figure 4 a). [41] The only structural deviation that is notable at all concerns the terminal Ge−S bonds, which are slightly shorter in 1 (by ≈3 pm) than in the reference compound, which can be explained by a weak additional interaction between the sulfur atom and a hydrogen atom of the (Me 2 NH 2 ) + cations in the latter.…”

“… Cut‐outs from the crystal structures of known compounds that comprise structural motifs related to those in compounds 1 , 2 a , and 2 b reported in this work: a) (Me 2 NH 2 ) 6 [(Ge 2 Sb 2 S 7 )(Ge 4 S 10 )], [41] b) (C 2 H 10 N 2 )[Sb 8 S 13 ], [44] and c) (Me 3 NH) 4 [Sn 10 O 4 S 18 ] [45] . Ammonium counterions are drawn in wire style.…”

“…[40] Compound 1 crystallizes as yellow blocks in the cubic crystal system,s pace group Fd3 m,w ith eight formula units in the unit cell. The structure contains two different types of anions, at etrahedral [ [41] The only structural deviation that is notable at all concerns the terminal GeÀSb onds, which are slightly shorter in 1 (by % 3pm) than in the reference compound, which can be explained by aw eak additional interaction between the sulfur atom andahydrogen atom of the (Me 2 NH 2 ) + cations in the latter.…”

“…The [Sb 3 S 6 ] 3À moiety has been reported as ab uildingu nit in the sulfidoa ntimonate salt (C 2 H 10 N 2 )[Sb 8 S 13 ]( see Figure4b). [44] In 2,i ti s based on ac entral{ Sb 3 (m-S) 3 }r ing (Sb1,2ÀS6,7 2.445 3 ], [41] b) (C 2 H 10 N 2 )[Sb 8 S 13 ], [44] and c) (Me 3 NH) 4 [Sn 10 O 4 S 18 ]. [45] Ammonium counterionsa re drawn in wire style.…”