Ferrole
≈ 2 min read
Names in other languages
No names in other languages are held for this entry yet.
Article bodies are English and are not machine-translated. A name in another language is not a translation of the article.
In organoiron chemistry, a ferrole is a type of diiron complex containing the (OC) 3 FeC 4 R 4 heterocycle that is pi-bonded to a Fe(CO) 3 group. These compounds have Fe-Fe bonds (ca. 252 pm) and semi-bridging CO ligands (Fe-C distances = 178, 251 pm). They are typically air-stable, soluble in nonpolar solvents, and red-orange in color.
In organoiron chemistry, a ferrole is a type of diiron complex containing the (OC) 3 FeC 4 R 4 heterocycle that is pi-bonded to a Fe(CO) 3 group. These compounds have Fe-Fe bonds (ca. 252 pm) and semi-bridging CO ligands (Fe-C distances = 178, 251 pm). They are typically air-stable, soluble in nonpolar solvents, and red-orange in color.
Synthesis
Ferroles typically arise by the reaction of alkynes with iron carbonyls. Such reactions are known to generate many products, e.g. complexes of cyclopentadienones and para-quinones. Another route involves the desulfurization of thiophenes (SC 4 R 4 ) by iron carbonyls, shown in the following idealized equation: Fe 3 (CO) 12 + SC 4 R 4 → Fe 2 (CO) 6 C 4 R 4 + FeS + 6 CO An unusual route to ferroles involves treatment of Collman's reagent with trimethylsilyl chloride (tms = (CH 3 ) 3 Si): 2 Na 2 Fe(CO) 4 + 4 tmsCl → Fe 2 (CO) 6 C 4 (Otms) 4 + 2 CO + 4 NaCl
Reactions
Some ferroles react with tertiary phosphines to give the substituted flyover complex Fe 2 (CO) 5 (PR 3 )(C 4 R 4 CO).
References
Text derived from https://en.wikipedia.org/w/index.php?oldid=1334030105 under CC BY-SA 4.0; modifications have been made.