Optical spectrum of hexaaquoruthenium(III) ion and its conjugate base

Zvi Harzion; Gil Navon

doi:10.1021/ic50210a008

Optical spectrum of hexaaquoruthenium(III) ion and its conjugate base

Zvi Harzion, Gil Navon

School of Chemistry

Tel Aviv University

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41 Scopus citations

Abstract

The spectrum of Ru(H₂O)₆³⁺ was measured and fitted to the Tanabe and Sugano matrices. The parameters obtained, Dq = 2860 ± 40 cm^-1 and B = 640 ± 40 cm^-1 assuming C/B = 4, were compared with a systematic survey of analogous ruthenium(III) and rhodium(III) complexes. The pK for the formation of Ru(H₂O)₅OH²⁺ was found to be 2.4 ± 0.2 at 20°C and I = 1.0 M by a spectrophotometric titration. The charge-transfer bands of Ru(H₂O)₆³⁺ and Ru(H₂O)₅OH²⁺ were interpreted in terms of the optical electronegativities of H₂O and OH^-1.

Original language	English
Pages (from-to)	2236-2239
Number of pages	4
Journal	Inorganic Chemistry
Volume	19
Issue number	8
DOIs	https://doi.org/10.1021/ic50210a008
State	Published - 1980

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title = "Optical spectrum of hexaaquoruthenium(III) ion and its conjugate base",

abstract = "The spectrum of Ru(H2O)63+ was measured and fitted to the Tanabe and Sugano matrices. The parameters obtained, Dq = 2860 ± 40 cm-1 and B = 640 ± 40 cm-1 assuming C/B = 4, were compared with a systematic survey of analogous ruthenium(III) and rhodium(III) complexes. The pK for the formation of Ru(H2O)5OH2+ was found to be 2.4 ± 0.2 at 20°C and I = 1.0 M by a spectrophotometric titration. The charge-transfer bands of Ru(H2O)63+ and Ru(H2O)5OH2+ were interpreted in terms of the optical electronegativities of H2O and OH-1.",

author = "Zvi Harzion and Gil Navon",

year = "1980",

doi = "10.1021/ic50210a008",

language = "אנגלית",

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pages = "2236--2239",

journal = "Inorganic Chemistry",

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AU - Harzion, Zvi

AU - Navon, Gil

PY - 1980

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N2 - The spectrum of Ru(H2O)63+ was measured and fitted to the Tanabe and Sugano matrices. The parameters obtained, Dq = 2860 ± 40 cm-1 and B = 640 ± 40 cm-1 assuming C/B = 4, were compared with a systematic survey of analogous ruthenium(III) and rhodium(III) complexes. The pK for the formation of Ru(H2O)5OH2+ was found to be 2.4 ± 0.2 at 20°C and I = 1.0 M by a spectrophotometric titration. The charge-transfer bands of Ru(H2O)63+ and Ru(H2O)5OH2+ were interpreted in terms of the optical electronegativities of H2O and OH-1.

AB - The spectrum of Ru(H2O)63+ was measured and fitted to the Tanabe and Sugano matrices. The parameters obtained, Dq = 2860 ± 40 cm-1 and B = 640 ± 40 cm-1 assuming C/B = 4, were compared with a systematic survey of analogous ruthenium(III) and rhodium(III) complexes. The pK for the formation of Ru(H2O)5OH2+ was found to be 2.4 ± 0.2 at 20°C and I = 1.0 M by a spectrophotometric titration. The charge-transfer bands of Ru(H2O)63+ and Ru(H2O)5OH2+ were interpreted in terms of the optical electronegativities of H2O and OH-1.

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JO - Inorganic Chemistry

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Optical spectrum of hexaaquoruthenium(III) ion and its conjugate base

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