Iron(II) in the context of Coordination complex

Iron(II) in the context of Coordination complex

Iron(II) Study page number 1 of 1

Play TriviaQuestions Online!

 or

Skip to study material about Iron(II) in the context of "Coordination complex"

⭐ Core Definition: Iron(II)

In chemistry, iron(II) refers to the element iron in its +2 oxidation state. The adjective ferrous or the prefix ferro- is often used to specify such compounds, as in ferrous chloride for iron(II) chloride (FeCl2). The adjective ferric is used instead for iron(III) salts, containing the cation Fe. The word ferrous is derived from the Latin word ferrum, meaning "iron".

In ionic compounds (salts), such an atom may occur as a separate cation (positive ion) abbreviated as Fe, although more precise descriptions include other ligands such as water and halides. Iron(II) centres occur in coordination complexes, such as in the anion ferrocyanide, [Fe(CN)6], where six cyanide ligands are bound the metal centre; or, in organometallic compounds, such as the ferrocene [Fe(C5H5)2], where two cyclopentadienyl anions are bound to the Fe centre.

↓ Menu
HINT:

In this Dossier

Iron(II) in the context of Ferric

In chemistry, iron(III) or ferric refers to the element iron in its +3 oxidation state. Ferric chloride is an alternative name for iron(III) chloride (FeCl3). The adjective ferrous is used instead for iron(II) salts, containing the cation Fe. The word ferric is derived from the Latin word ferrum, meaning "iron".

Although often abbreviated as Fe, that naked ion does not exist except under extreme conditions. Iron(III) centres are found in many compounds and coordination complexes, where Fe(III) is bonded to several ligands. A molecular ferric complex is the anion ferrioxalate, [Fe(C2O4)3], with three bidentate oxalate ions surrounding the Fe core. Relative to lower oxidation states, ferric is less common in organoiron chemistry, but the ferrocenium cation [Fe(C5H5)2] is well known.

View the full Wikipedia page for Ferric
↑ Return to Menu
LINKED FROM (PARENTS)
← Ferric
LINKS TO (CHILDREN)
Chemistry → Chemical element → Iron → Oxidation number → Iron(II) chloride → Ferric → Iron(III) → Latin → Salt (chemistry) → Cation → Coordination complex → Anion → Ferrocyanide → Cyanide → Organometallic compound → Ferrocene → Cyclopentadienyl →