Tris(bipyridine)iron(II) chloride

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Tris(bipyridine)iron(II) chloride
Fe(bipy)3Cl2.svg
Identifiers
3D model (JSmol)
ChemSpider
PubChem CID
  • InChI=1S/3C10H8N2.2ClH.Fe/c3*1-3-7-11-9(5-1)10-6-2-4-8-12-10;;;/h3*1-8H;2*1H;/q;;;;;+2/p-2
    Key: GBRPARYPGGYWHF-UHFFFAOYSA-L
  • C1=CC=NC(=C1)C2=CC=CC=N2.C1=CC=NC(=C1)C2=CC=CC=N2.C1=CC=NC(=C1)C2=CC=CC=N2.[Cl-].[Cl-].[Fe+2]
Properties
C30H24Cl2FeN6
Molar mass 595.31 g·mol−1
Appearancered solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Tris(bipyridine)iron(II) chloride is the chloride salt of the coordination complex tris(bipyridine)iron(II), [Fe(C10H8N2)3]2+. It is a red solid. In contrast to tris(bipyridine)ruthenium(II), this iron complex is not a useful photosensitizer because its excited states relax too rapidly, a consequence of the primogenic effect.

Contents

Tris(bipyridine)iron(II) chloride features an octahedral Fe(II) center bound to three bipyridine ligands. The complex has been isolated as salts with many anions. [1]

Synthesis and reactions

The sulfate salt [Fe(bipy)3]SO4 is produced by combining ferrous sulfate with excess bipy in aqueous solution. [2] This result illustrates the preference of Fe(II) for bipyridine vs water. The potentials for |[Fe(bipy)3]2+/3+ and [Fe(phen)3]2+/3+ are very similar. [3]

Addition of cyanide to an aqueous solution of [Fe(bipy)3]SO4 precipitates Fe(bipy)2(CN)2. [4]

References

  1. ↑ Batten, Stuart R.; Murray, Keith S.; Sinclair, Nathan J. (2000). "Tris(2,2′-bipyridyl- N , N ′)iron(II) diperchlorate". Acta Crystallographica Section C Crystal Structure Communications. 56 (8): e320. Bibcode:2000AcCrC..56E.320B. doi:10.1107/S0108270100009185.
  2. ↑ Avdeeva, Varvara V.; Vologzhanina, Anna V.; Goeva, Lyudmila V.; Malinina, Elena A.; Kuznetsov, Nikolay T. (2014). "Boron Cluster Anions [BnHn]2– ( n = 10, 12) in Reactions of Iron(II) and Iron(III) Complexation with 2,2′-Bipyridyl and 1,10-Phenanthroline". Zeitschrift für Anorganische und Allgemeine Chemie. 640 (11): 2149–2160. doi:10.1002/zaac.201400137.
  3. ↑ Wong, C. L.; Kochi, J. K. (1979). "Electron Transfer with Organometals. Steric Effects as Probes for Outer-Sphere and Inner-Sphere Oxidations of Homoleptic Alkylmetals with Iron(III) and Iridate(IV) Complexes". Journal of the American Chemical Society. 101 (19): 5593–5603. Bibcode:1979JAChS.101.5593W. doi:10.1021/ja00513a024.
  4. ↑ Schilt, Alfred A. (1970). "Dicyanobis(1,10-phenanthroline)Iron(II) and Dicyanobis(2,2′-bipyridine)iron(II)". Inorganic Syntheses. Vol. 12. pp. 247–251. doi:10.1002/9780470132432.ch43. ISBN   978-0-470-13171-8.
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