Thio‐ and Seleno‐Compounds of Main Group Elements—Novel Inorganic Oligomers and Polymers

Abstract

During the last decade modern preparative and structural methods have led to novel and often unexpected oligomeric and polymeric main group element-sulfur compounds having remarkable bonding and structural properties and reactivities. Examples of important new developments in this area are: the discovery of boron sulfides B& and (BS2), and of ionconducting air-stable thioborates with tetrahedrally coordinated boron; the successful use of boron sulfides in organic and inorganic syntheses ; the preparation of different homologous series of molecular polynuclear thio-and selenoanions of Ga, In, Si, Ge and Sn, and of new polynuclear sulfide-and selenide-halides of Si and Ge as interesting reagents for inorganic and organic reactions; the synthesis of argyrodite(Ag8GeS,)-like phases with remarkable solid-state properties; and the characterization of the S-H . . . S type hydrogen bridge in thiocarbonic acid and thiophosphinic acids, which is of importance for an understanding of certain interactions in sulfur-containing biomolecules.

Ortho‐Chalcogenostannates as Ligands: Syntheses, Crystal Structures, Electronic Properties, and Magnetism of Novel Compounds Containing Ternary Anionic Substructures [M4(μ4‐Se)(SnSe4)4]10− (M=Mn, Zn, Cd, Hg), ${{{\hfill 3\atop \hfill \infty }}}${[Hg4(μ4‐Se)(SnSe4)3]6−}, or ${{{\hfill 1\atop \hfill \infty }}}${[HgSnSe4]2−}

“…The equilibrium given in Equation (1) is known to favor the monomer side for homologous [SnS 4 ] 4− ions in aqueous solution;15 the observed shift to the right‐hand side is thus forced by the generation of the ternary compounds, that is, by the formation of stable MSe (M=Co, Mn, Zn, Cd, Hg) bonds with free Se 2− ions during the reactions described here.…”

Solvothermal syntheses of three new one-dimensional ternary selenidostannates: [DBNH][M1/2Sn1/2Se2] (M=Mn, Zn, Hg)

“…Metal chalcogenides with diverse structural factors and various applications in optoelectronic field have attracted extensive research interests in the past few decades [1][2][3][4][5][6][7][8][9]. In order to obtain chalcogenides with novel structures and unique properties, several synthetic methods have been developed, such as high-temperature solid-state reactions, room-temperature solution processes, hydrothermal/solvothermal methods, and recently emerged ionthermal/surfactantthermal methods [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Solvothermal syntheses and structures of A3AgSn3Se8 (A=Rb, K)

“…Krebs and co-workers showed that various tetrahedral selenostannate anions exist in alkaline aqueous solutions such as SnSe 4À 4 , Sn 2 Se 4À 6 , Sn 2 Se 6À 7 or Sn 4 Se 4À 10 [19]. In contrast to rich molecular species in solutions, limited anionic units have been found in the selenostannate synthesized by flux techniques such as K 2 MnSn 2 Se 6 , K 2 Ag 2 SnSe 4 , K 2 Ag 2 Sn 2 Se 6 [4,5,20].…”