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Titanium(III) bromide

Titanium(III) bromide
Names
IUPAC name
Tribromotitanium
Other names
Titanium tribromide
Identifiers
ChemSpider
PubChem CID
Properties
TiBr3
Molar mass 287.579 g/mol
Appearance blue-black solid
Hazards
not listed
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g., sodium chloride Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Titanium(III) bromide is the inorganic compound with the formula TiBr3. It is a blue black paramagnetic solid with a reddish reflection. It has few applications, although it is a catalyst for the polymerization of alkenes.

TiBr3 can be produced by heating the tetrabromide in an atmosphere of hydrogen:

It can also be produced by comproportionation of titanium metal and titanium tetrabromide.

There are two polymorphs, each exhibiting octahedral Ti centers.

Heating the tribromide gives the dibromide together with the volatile tetrabromide:

The solid dissolves in donor solvents (L) such as pyridine and nitriles to produce 3:1 adducts:


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