Dirhenium decacarbonyl
Encyclopedia
Dirhenium decacarbonyl is an inorganic compound
with the formula Re2(CO)10. Commercially available, it is used as a starting point for the synthesis of many rhenium
carbonyl
complexes. It was first reported in 1941 by Walter Hieber
who prepared it by carbonylation
of Re2O7
. The compound consists of a pair of square pyramidal Re(CO)5 units joined via a Re-Re bond. Mn2(CO)10 and Tc2(CO)10 adopt the same structure.
Reaction with various halogen
s cleave the Re-Re bond:
When bromine is used, bromopentacarbonylrhenium(I)
is formed; it is itself an intermediate for many more rhenium complexes.
Inorganic compound
Inorganic compounds have traditionally been considered to be of inanimate, non-biological origin. In contrast, organic compounds have an explicit biological origin. However, over the past century, the classification of inorganic vs organic compounds has become less important to scientists,...
with the formula Re2(CO)10. Commercially available, it is used as a starting point for the synthesis of many rhenium
Rhenium
Rhenium is a chemical element with the symbol Re and atomic number 75. It is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. With an average concentration of 1 part per billion , rhenium is one of the rarest elements in the Earth's crust. The free element has...
carbonyl
Carbonyl
In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C=O. It is common to several classes of organic compounds, as part of many larger functional groups....
complexes. It was first reported in 1941 by Walter Hieber
Walter Hieber
Walter Hieber was an inorganic chemist, known as the father of metal carbonyl chemistry. He was born 18 December, 1895 and died 29 November, 1976. Hieber's father was Johannes Hieber, an influential evangelical minister and politician....
who prepared it by carbonylation
Carbonylation
Carbonylation refers to reactions that introduce carbon monoxide into organic and inorganic substrates. Carbon monoxide is abundantly available and conveniently reactive, so it is widely used as a reactant in industrial chemistry.-Organic chemistry:...
of Re2O7
Rhenium(VII) oxide
Rhenium oxide is the chemical compound with the formula Re2O7. It is the anhydride of the hypothetical acid . Perrhenic acid, Re2O7·2H2O, however is closely related structurally to Re2O7. Solid Re2O7 is polymeric consisting, unusually, of the metal centers in two coordination environments...
. The compound consists of a pair of square pyramidal Re(CO)5 units joined via a Re-Re bond. Mn2(CO)10 and Tc2(CO)10 adopt the same structure.
Reaction with various halogen
Halogen
The halogens or halogen elements are a series of nonmetal elements from Group 17 IUPAC Style of the periodic table, comprising fluorine , chlorine , bromine , iodine , and astatine...
s cleave the Re-Re bond:
- Re2(CO)10 + X2 → 2 Re(CO)5X (X = Cl, Br, I)
When bromine is used, bromopentacarbonylrhenium(I)
Bromopentacarbonylrhenium(I)
Bromopentacarbonylrhenium is an inorganic compound of rhenium, commonly used for the syntheses of other rhenium complexes.-Preparation:Bromopentacarbonylrhenium is commercially available...
is formed; it is itself an intermediate for many more rhenium complexes.