Triiron dodecacarbonyl

Structural formula
General
Surname	Triiron dodecacarbonyl
Molecular formula	[Fe 3 (CO) 12 ]
Brief description	deep green solid
External identifiers / databases
EC number	241-668-5
ECHA InfoCard	100,037,864
PubChem	16212435
Wikidata	Q382703
properties
Molar mass	503.66 g mol −1
Physical state	firmly
Melting point	140 ° C (decomposition)
safety instructions
H and P phrases	H: 228-302 + 332-370
	P: 210-260-307 + 311
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Triiron dodecacarbonyl is one of the three known, stable carbonyls of iron . It is a deep green substance that melts with decomposition at 140 ° C.

Extraction and presentation

Triiron dodecacarbonyl is formed from iron pentacarbonyl:

${\ displaystyle \ mathrm {1) \ 3 \ [Fe (CO) _ {5}] + {(C_ {2} H_ {5})} _ {3} N + H_ {2} O \ rightarrow}}$ ${\ displaystyle \ mathrm {[{(C_ {2} H_ {5})} _ {3} NH] [HFe_ {3} (CO) _ {11}] + 3 \ CO + CO_ {2}}}$

${\ displaystyle \ mathrm {2) \ [{(C_ {2} H_ {5})} _ {3} NH] [HFe_ {3} (CO) _ {11}] + HCl + CO \ rightarrow}}$ ${\ displaystyle \ mathrm {[Fe_ {3} (CO) _ {12}] + H_ {2} + [{(C_ {2} H_ {5})} _ {3} NH] Cl}}$

properties

Tri-iron dodecacarbonyl is in the form of deep black, moderately air-stable, sublimable crystals in a high vacuum at temperatures of 60 ° C and below. If the temperature is longer than 60 ° C, it decomposes with the separation of iron. It is sparingly soluble in organic solvents. The green solution quickly decomposes when air is exposed, with the separation of iron (III) oxide .

Further iron carbonyls

Iron pentacarbonyl [Fe (CO) ₅ ]
Diiron nonacarbonyl [Fe ₂ (CO) ₉ ]

Web links

Commons : Trieisendodecacarbonyl - collection of pictures, videos and audio files

Individual evidence

^ ^A ^b A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 .
↑ ^a ^b data sheet triirondodecacarbonyl from Sigma-Aldrich , accessed on April 30, 2017 ( PDF ).
↑ Georg Brauer (ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1829.

[HoWi-1] A ^b A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 .

[sigma-2] ta sheet triirondodecacarbonyl from Sigma-Aldrich , accessed on April 30, 2017 ( PDF ).

[brauer-3] Georg Brauer (ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1829.