Thiazyl trifluoride
Encyclopedia
Thiazyl trifluoride is a chemical compound
of nitrogen
, sulfur
, and fluorine
, having the formula
NSF3. It exists as a stable, colourless gas, and is an important precursor to other sulfur-nitrogen-fluorine compounds. It has tetrahedral molecular geometry
around the sulfur atom, and is regarded to be a prime example of a compound that has a sulfur-nitrogen triple bond
.
NSF3 can be synthesised by the fluorination of thiazyl fluoride
, NSF, with silver(II) fluoride
, AgF2:
It is also a product of the oxidation of ammonia
by
.
Chemical compound
A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. Chemical compounds have a unique and defined chemical structure; they consist of a fixed ratio of atoms that are held together...
of nitrogen
Nitrogen
Nitrogen is a chemical element that has the symbol N, atomic number of 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless, and mostly inert diatomic gas at standard conditions, constituting 78.08% by volume of Earth's atmosphere...
, sulfur
Sulfur
Sulfur or sulphur is the chemical element with atomic number 16. In the periodic table it is represented by the symbol S. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8. Elemental sulfur is a bright yellow...
, and fluorine
Fluorine
Fluorine is the chemical element with atomic number 9, represented by the symbol F. It is the lightest element of the halogen column of the periodic table and has a single stable isotope, fluorine-19. At standard pressure and temperature, fluorine is a pale yellow gas composed of diatomic...
, having the formula
Chemical formula
A chemical formula or molecular formula is a way of expressing information about the atoms that constitute a particular chemical compound....
NSF3. It exists as a stable, colourless gas, and is an important precursor to other sulfur-nitrogen-fluorine compounds. It has tetrahedral molecular geometry
Tetrahedral molecular geometry
In a tetrahedral molecular geometry a central atom is located at the center with four substituents that are located at the corners of a tetrahedron. The bond angles are cos−1 ≈ 109.5° when all four substituents are the same, as in CH4. This molecular geometry is common throughout the first...
around the sulfur atom, and is regarded to be a prime example of a compound that has a sulfur-nitrogen triple bond
Triple bond
A triple bond in chemistry is a chemical bond between two chemical elements involving six bonding electrons instead of the usual two in a covalent single bond. The most common triple bond, that between two carbon atoms, can be found in alkynes. Other functional groups containing a triple bond are...
.
NSF3 can be synthesised by the fluorination of thiazyl fluoride
Thiazyl fluoride
Thiazyl fluoride, NSF, is a colourless, pungent gas that is unstable at room temperature. Along with thiazyl trifluoride, NSF3, it is an important precursor to other sulfur-nitrogen-fluorine compounds....
, NSF, with silver(II) fluoride
Silver(II) fluoride
Silver fluoride is a chemical compound with the formula AgF2. It is a rare example of a silver compound. Silver is usually present in its +1 oxidation state. It is used as a fluorinating agent.-Preparation:...
, AgF2:
- NSF + 2 AgF2 → NSF3 + 2 AgF
It is also a product of the oxidation of ammonia
Ammonia
Ammonia is a compound of nitrogen and hydrogen with the formula . It is a colourless gas with a characteristic pungent odour. Ammonia contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to food and fertilizers. Ammonia, either directly or...
by
Disulfur decafluoride
Disulfur decafluoride is a gas discovered in 1934 by Denbigh and Whytlaw-Gray. Each S of the S2F10 molecule is octahedral, and surrounded by 5 fluorines. S2F10 is highly toxic, with toxicity similar to phosgene...
.