Stepwise formation of fluoride complexes of chromium(III) in mixed potassium thiocyanate-potassium fluoride molten salts

Holmberg, B.; Jarring, K.

doi:10.1021/ic00258a016

Inorg. Chem.

1987

DOI: 10.1021/ic00258a016

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Stepwise formation of fluoride complexes of chromium(III) in mixed potassium thiocyanate-potassium fluoride molten salts

B. Holmberg¹,

K. Jarring²

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1987

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ChemInform Abstract: Stepwise Formation of Fluoride Complexes of Chromium(III) in Mixed KSCN‐KF Molten Salts

Holmberg

Jarring

1987

ChemInform

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024ChemInform Abstract has been investigated at 185 rc C by absorption spectroscopy which reveals a pronounced effect of selective fluoride association on the d-electron transition. It is concluded that the octahedral coordination persists as the complexation proceeds. Quantitative measurements are performed using a fluoride-selective membrane electrode developed for operating temp. of up to 200 rc C, which allows to measure F-activities accurately in molten salts. Ligand numbers between 0 and 3.2 are established, and the stability constants for Cr(NCS)6-xFx3-have been determined for 1 x 4. It is demonstrated that the whole complexation process involving four consecutive steps, can be successfully modeled by use of one specific interaction energy parameter if the total coordinationnumber of the acceptor ion is known.

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ChemInform Abstract: Stepwise Formation of Fluoride Complexes of Chromium(III) in Mixed KSCN‐KF Molten Salts

Holmberg

Jarring

1987

ChemInform

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Stepwise formation of fluoride complexes of chromium(III) in mixed potassium thiocyanate-potassium fluoride molten salts

Cited by 1 publication

References 2 publications

ChemInform Abstract: Stepwise Formation of Fluoride Complexes of Chromium(III) in Mixed KSCN‐KF Molten Salts

ChemInform Abstract: Stepwise Formation of Fluoride Complexes of Chromium(III) in Mixed KSCN‐KF Molten Salts

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