Tetramesityldiiron Explained

Tetramesityldiiron is an organoiron compound with the formula Fe2(C6H2(CH3)3)4. It is a red, air-sensitive solid that is used as a precursor to other iron complexes. It adopts a centrosymmetric structure.[1] The complex is a Lewis acid, forming monomeric adducts, e.g. Fe(C6H2(CH3)3)2pyridine2. The complex is prepared by treating ferrous halides with the Grignard reagent formed from mesityl bromide:[2] [3]

2 FeCl2 + 4 BrMgC6H2(CH3)3 → Fe2(C6H2(CH3)3)4 + 2 MgBrCl

References

  1. Müller . Hardy . Seidel . Wolfgang . Görls . Helmar . 1993 . Chemistry of dimesityliron. VI. The structure of tetramesityldiiron . Journal of Organometallic Chemistry . 445 . 133–6 . 10.1016/0022-328X(93)80198-K.
  2. Klose . Alain . Solari . Euro . Floriani . Carlo . Chiesi-Villa . Angiola . Rizzoli . Corrado . Re . Nazzareno . 1994 . Magnetic Properties Diagnostic for the Existence of Iron(II)-Iron(II) Bonds in Dinuclear Complexes Which Derive from Stepwise Insertion Reactions on Unsupported Iron-Aryl Bonds . J. Am. Chem. Soc. . 116 . 20. 9123–9135 . 10.1021/ja00099a030 .
  3. Book: 10.1002/9781119477822.ch4. Inorganic Syntheses. Martinez. Gabriel Espinosa. Killion. Jack A.. Jackson. Bailey J.. Fout. Alison R.. Sterically Crowded σ- and π-Bonded Metal Aryl Complexes . 50–55. 2018. 36. 978-1-119-47782-2 . 104749729 .

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