Titanium trisulfide
| Crystal structure | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||
| __ Ti 4+ __ S 2 - / - | ||||||||||
| General | ||||||||||
| Surname | Titanium trisulfide | |||||||||
| other names |
|
|||||||||
| Ratio formula | TiS 3 | |||||||||
| Brief description |
silver-black shiny or matt black, needle-shaped crystals |
|||||||||
| External identifiers / databases | ||||||||||
|
||||||||||
| properties | ||||||||||
| Molar mass | 144.08 g mol −1 | |||||||||
| Physical state |
firmly |
|||||||||
| safety instructions | ||||||||||
|
||||||||||
| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | ||||||||||
Titanium trisulfide TiS 3 is a chemical compound of titanium and sulfur that can be produced from the elements at 600 ° C. It forms silver-black, shiny or matt black and therefore graphite-like, but needle-shaped crystals.
Titantrisulfid containing tetravalent titanium, per formula unit formally a Ti 4+ , a sulfide anion S 2- and Disulfidanion S 2 2 : Ti (S) (S 2 ).
Each titanium atom is surrounded by six sulfur atoms in the crystal, which form a distorted trigonal prism around the titanium. The prisms are arranged one above the other in such a way that the titanium atoms in the centers of the prisms lie one above the other on a straight line. The disulfide anions contained are located on a rectangular side of the trigonal prism, always on the same side of the stacked prisms, like a ladder with the SS bonds as ladder rungs.
A relatively well-studied reaction of titanium trisulfide is that with butyllithium : Li 3 TiS 3 is formed ; this releases heat.
See also
Individual evidence
- ^ A b c A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 , p. 1528.
- ↑ a b c d R. R. Chianelli, MB Dines, Reaction of n-Butyllithium with Transition Metal Trichalcogenides, Inorganic Chemistry 14 (10) (1975) 2417-2421
- ↑ a b data sheet titanium trisulfide from AlfaAesar, accessed on October 7, 2011 ( PDF )(JavaScript required) .