Convenient synthesis of tris-heteroleptic ruthenium(II) polypyridyl complexes

D. A. Freedman; J. K. Evju; M. K. Pomije; K. R. Mann

doi:10.1021/ic010603r

Convenient synthesis of tris-heteroleptic ruthenium(II) polypyridyl complexes

D. A. Freedman, J. K. Evju, M. K. Pomije, K. R. Mann

Chemistry (Twin Cities)

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Abstract

A convenient synthesis of tris-heteroleptic polypyridyl [Ru(pp)(pp′)(pp″)]²⁺ complexes is reported (where pp,pp′, and pp″ represent three different polypyridyl ligands). Photolysis of [BzRu(pp)Cl]Cl (Bz = η⁶-C₆H₆) gives a mixture of Ru(pp)(CH₃CN)₂Cl₂ and [Ru(pp)(CH₃CN)₃Cl]Cl. Refluxing this mixture with pp′ yields Ru(pp)(pp′)Cl₂. Finally, refluxing Ru(pp)(pp′)Cl₂ with pp″ in a 75% ethanol/water solution gives [Ru(pp)(pp′)(pp″)]²⁺. No ligand scrambling is observed. The complexes are characterized by ¹H NMR, elemental analysis, FAB-MB, UV-vis and emission spectroscopy, and cyclic voltammetry.

Original language	English (US)
Pages (from-to)	5711-5715
Number of pages	5
Journal	Inorganic chemistry
Volume	40
Issue number	22
DOIs	https://doi.org/10.1021/ic010603r
State	Published - Oct 22 2001

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title = "Convenient synthesis of tris-heteroleptic ruthenium(II) polypyridyl complexes",

abstract = "A convenient synthesis of tris-heteroleptic polypyridyl [Ru(pp)(pp′)(pp″)]2+ complexes is reported (where pp,pp′, and pp″ represent three different polypyridyl ligands). Photolysis of [BzRu(pp)Cl]Cl (Bz = η6-C6H6) gives a mixture of Ru(pp)(CH3CN)2Cl2 and [Ru(pp)(CH3CN)3Cl]Cl. Refluxing this mixture with pp′ yields Ru(pp)(pp′)Cl2. Finally, refluxing Ru(pp)(pp′)Cl2 with pp″ in a 75% ethanol/water solution gives [Ru(pp)(pp′)(pp″)]2+. No ligand scrambling is observed. The complexes are characterized by 1H NMR, elemental analysis, FAB-MB, UV-vis and emission spectroscopy, and cyclic voltammetry.",

author = "Freedman, {D. A.} and Evju, {J. K.} and Pomije, {M. K.} and Mann, {K. R.}",

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T1 - Convenient synthesis of tris-heteroleptic ruthenium(II) polypyridyl complexes

AU - Freedman, D. A.

AU - Evju, J. K.

AU - Pomije, M. K.

AU - Mann, K. R.

PY - 2001/10/22

Y1 - 2001/10/22

N2 - A convenient synthesis of tris-heteroleptic polypyridyl [Ru(pp)(pp′)(pp″)]2+ complexes is reported (where pp,pp′, and pp″ represent three different polypyridyl ligands). Photolysis of [BzRu(pp)Cl]Cl (Bz = η6-C6H6) gives a mixture of Ru(pp)(CH3CN)2Cl2 and [Ru(pp)(CH3CN)3Cl]Cl. Refluxing this mixture with pp′ yields Ru(pp)(pp′)Cl2. Finally, refluxing Ru(pp)(pp′)Cl2 with pp″ in a 75% ethanol/water solution gives [Ru(pp)(pp′)(pp″)]2+. No ligand scrambling is observed. The complexes are characterized by 1H NMR, elemental analysis, FAB-MB, UV-vis and emission spectroscopy, and cyclic voltammetry.

AB - A convenient synthesis of tris-heteroleptic polypyridyl [Ru(pp)(pp′)(pp″)]2+ complexes is reported (where pp,pp′, and pp″ represent three different polypyridyl ligands). Photolysis of [BzRu(pp)Cl]Cl (Bz = η6-C6H6) gives a mixture of Ru(pp)(CH3CN)2Cl2 and [Ru(pp)(CH3CN)3Cl]Cl. Refluxing this mixture with pp′ yields Ru(pp)(pp′)Cl2. Finally, refluxing Ru(pp)(pp′)Cl2 with pp″ in a 75% ethanol/water solution gives [Ru(pp)(pp′)(pp″)]2+. No ligand scrambling is observed. The complexes are characterized by 1H NMR, elemental analysis, FAB-MB, UV-vis and emission spectroscopy, and cyclic voltammetry.

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Convenient synthesis of tris-heteroleptic ruthenium(II) polypyridyl complexes

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