The synthesis and characterization of potassium 2,2′-bipyridinetetranitroruthenate

D. A. Freedman; D. E. Janzen; K. R. Mann

doi:10.1021/ic010548m

The synthesis and characterization of potassium 2,2′-bipyridinetetranitroruthenate

D. A. Freedman, D. E. Janzen, K. R. Mann

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We report a convenient synthesis of K₂[Ru(bpy)(NO₂)₄] via the thermal displacement of benzene from [(Bz)Ru(bpy)Cl]Cl (Bz = η⁶-C₆H₆; bpy = 2,2′bipyridine) by nitrite ion in methanol solution. K₂[Ru(bpy)(NO₂)₄] has been fully characterized by elemental analysis, X-ray crystallography, and ¹H NMR, IR, UV-vis, and emission spectroscopy. Reaction of K₂[Ru(bpy)(NO₂)₄] with pyridine under mild or forcing conditions produces fac-K[Ru(bpy)(NO₂)₃(py)] and cis-[Ru(NO₂)₂(bpy)(py)₂] (py = pyridine), respectively. We report full characterization data for these compounds, including crystal structures. The dπ(Ru) → π*(bpy) charge-transfer band in the electronic spectra of K₂[Ru(bpy)(NO₂)₄] and fac-[Ru(bpy)(NO₂)₃(py)] displays a significant solvent dependence. The energy of the absorption band correlates linearly with the Gutmann solvent acceptor number. The solvatochromic response of these nitro complexes is essentially identical to that of the analogous cyanide complexes, indicating that the mechanism previously proposed to explain the solvatochromism of the cyanide complexes may need to be reexamined.

Original language	English (US)
Pages (from-to)	6009-6016
Number of pages	8
Journal	Inorganic chemistry
Volume	40
Issue number	23
DOIs	https://doi.org/10.1021/ic010548m
State	Published - Nov 5 2001

Access

10.1021/ic010548m

OpenUrl availability

Full text

Cite this

@article{753dcbb8b4a04a58aee1644ff8898653,

title = "The synthesis and characterization of potassium 2,2′-bipyridinetetranitroruthenate",

abstract = "We report a convenient synthesis of K2[Ru(bpy)(NO2)4] via the thermal displacement of benzene from [(Bz)Ru(bpy)Cl]Cl (Bz = η6-C6H6; bpy = 2,2′bipyridine) by nitrite ion in methanol solution. K2[Ru(bpy)(NO2)4] has been fully characterized by elemental analysis, X-ray crystallography, and 1H NMR, IR, UV-vis, and emission spectroscopy. Reaction of K2[Ru(bpy)(NO2)4] with pyridine under mild or forcing conditions produces fac-K[Ru(bpy)(NO2)3(py)] and cis-[Ru(NO2)2(bpy)(py)2] (py = pyridine), respectively. We report full characterization data for these compounds, including crystal structures. The dπ(Ru) → π*(bpy) charge-transfer band in the electronic spectra of K2[Ru(bpy)(NO2)4] and fac-[Ru(bpy)(NO2)3(py)] displays a significant solvent dependence. The energy of the absorption band correlates linearly with the Gutmann solvent acceptor number. The solvatochromic response of these nitro complexes is essentially identical to that of the analogous cyanide complexes, indicating that the mechanism previously proposed to explain the solvatochromism of the cyanide complexes may need to be reexamined.",

author = "Freedman, {D. A.} and Janzen, {D. E.} and Mann, {K. R.}",

year = "2001",

month = nov,

day = "5",

doi = "10.1021/ic010548m",

language = "English (US)",

volume = "40",

pages = "6009--6016",

journal = "Inorganic chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "23",

}

TY - JOUR

T1 - The synthesis and characterization of potassium 2,2′-bipyridinetetranitroruthenate

AU - Freedman, D. A.

AU - Janzen, D. E.

AU - Mann, K. R.

PY - 2001/11/5

Y1 - 2001/11/5

N2 - We report a convenient synthesis of K2[Ru(bpy)(NO2)4] via the thermal displacement of benzene from [(Bz)Ru(bpy)Cl]Cl (Bz = η6-C6H6; bpy = 2,2′bipyridine) by nitrite ion in methanol solution. K2[Ru(bpy)(NO2)4] has been fully characterized by elemental analysis, X-ray crystallography, and 1H NMR, IR, UV-vis, and emission spectroscopy. Reaction of K2[Ru(bpy)(NO2)4] with pyridine under mild or forcing conditions produces fac-K[Ru(bpy)(NO2)3(py)] and cis-[Ru(NO2)2(bpy)(py)2] (py = pyridine), respectively. We report full characterization data for these compounds, including crystal structures. The dπ(Ru) → π*(bpy) charge-transfer band in the electronic spectra of K2[Ru(bpy)(NO2)4] and fac-[Ru(bpy)(NO2)3(py)] displays a significant solvent dependence. The energy of the absorption band correlates linearly with the Gutmann solvent acceptor number. The solvatochromic response of these nitro complexes is essentially identical to that of the analogous cyanide complexes, indicating that the mechanism previously proposed to explain the solvatochromism of the cyanide complexes may need to be reexamined.

AB - We report a convenient synthesis of K2[Ru(bpy)(NO2)4] via the thermal displacement of benzene from [(Bz)Ru(bpy)Cl]Cl (Bz = η6-C6H6; bpy = 2,2′bipyridine) by nitrite ion in methanol solution. K2[Ru(bpy)(NO2)4] has been fully characterized by elemental analysis, X-ray crystallography, and 1H NMR, IR, UV-vis, and emission spectroscopy. Reaction of K2[Ru(bpy)(NO2)4] with pyridine under mild or forcing conditions produces fac-K[Ru(bpy)(NO2)3(py)] and cis-[Ru(NO2)2(bpy)(py)2] (py = pyridine), respectively. We report full characterization data for these compounds, including crystal structures. The dπ(Ru) → π*(bpy) charge-transfer band in the electronic spectra of K2[Ru(bpy)(NO2)4] and fac-[Ru(bpy)(NO2)3(py)] displays a significant solvent dependence. The energy of the absorption band correlates linearly with the Gutmann solvent acceptor number. The solvatochromic response of these nitro complexes is essentially identical to that of the analogous cyanide complexes, indicating that the mechanism previously proposed to explain the solvatochromism of the cyanide complexes may need to be reexamined.

UR - http://www.scopus.com/inward/record.url?scp=0035813297&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035813297&partnerID=8YFLogxK

U2 - 10.1021/ic010548m

DO - 10.1021/ic010548m

M3 - Article

C2 - 11681918

AN - SCOPUS:0035813297

SN - 0020-1669

VL - 40

SP - 6009

EP - 6016

JO - Inorganic chemistry

JF - Inorganic chemistry

IS - 23

ER -

The synthesis and characterization of potassium 2,2′-bipyridinetetranitroruthenate

Abstract

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this