Reactions of KBrF4 with platinum metals

Sergei I. Ivlev, Artem V. Malin, Antti J. Karttunen, Roman V. Ostvald, Florian Kraus

Research output: Contribution to journalArticle

Abstract

The reaction of various platinum metals (M = Ru, Os, Rh, Ir, Pd, Pt) with KBrF4 was investigated upon heating their mixtures to 400 °C. The formation of potassium fluorido platinum metallates in oxidation states +4 or +5, K2MF6 or KMF6, respectively, was observed in all cases. The obtained products were tested for their stability in water. Depending on the platinum metal, they were either stable, were reduced to the oxidation state +4, or were hydrolyzed to so far unidentified phases. K2RuF6, K2OsF6, α-K2PdF6, β-K2PdF6, which were previously only poorly characterized, were structurally reinvestigated by single crystal or powder X-ray diffraction, Raman and IR spectroscopy. The three former compounds crystallize isotypic in the trigonal, the latter in the hexagonal crystal system. The α→β phase transition of K2PdF6 was found to be reconstructive. Quantum chemical calculations were used to investigate the crystal structures.

Original languageEnglish
Pages (from-to)11-20
Number of pages10
JournalJournal of Fluorine Chemistry
Volume218
DOIs
Publication statusPublished - 1 Feb 2019

Fingerprint

Platinum metals
Platinum
platinum
Metals
Oxidation
metal
metals
X ray powder diffraction
crystal
Raman spectroscopy
oxidation
Infrared spectroscopy
Potassium
Raman Spectrum Analysis
Crystal structure
Phase transitions
Phase Transition
Single crystals
phase transition
Heating

Keywords

  • Platinum metals
  • Potassium tetrafluoridobromate
  • Recycling
  • X-ray diffraction

ASJC Scopus subject areas

  • Biochemistry
  • Environmental Chemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Reactions of KBrF4 with platinum metals. / Ivlev, Sergei I.; Malin, Artem V.; Karttunen, Antti J.; Ostvald, Roman V.; Kraus, Florian.

In: Journal of Fluorine Chemistry, Vol. 218, 01.02.2019, p. 11-20.

Research output: Contribution to journalArticle

Ivlev, Sergei I. ; Malin, Artem V. ; Karttunen, Antti J. ; Ostvald, Roman V. ; Kraus, Florian. / Reactions of KBrF4 with platinum metals. In: Journal of Fluorine Chemistry. 2019 ; Vol. 218. pp. 11-20.
@article{d08bf9d126b14a2aa8dd695f62e3a0c3,
title = "Reactions of KBrF4 with platinum metals",
abstract = "The reaction of various platinum metals (M = Ru, Os, Rh, Ir, Pd, Pt) with KBrF4 was investigated upon heating their mixtures to 400 °C. The formation of potassium fluorido platinum metallates in oxidation states +4 or +5, K2MF6 or KMF6, respectively, was observed in all cases. The obtained products were tested for their stability in water. Depending on the platinum metal, they were either stable, were reduced to the oxidation state +4, or were hydrolyzed to so far unidentified phases. K2RuF6, K2OsF6, α-K2PdF6, β-K2PdF6, which were previously only poorly characterized, were structurally reinvestigated by single crystal or powder X-ray diffraction, Raman and IR spectroscopy. The three former compounds crystallize isotypic in the trigonal, the latter in the hexagonal crystal system. The α→β phase transition of K2PdF6 was found to be reconstructive. Quantum chemical calculations were used to investigate the crystal structures.",
keywords = "Platinum metals, Potassium tetrafluoridobromate, Recycling, X-ray diffraction",
author = "Ivlev, {Sergei I.} and Malin, {Artem V.} and Karttunen, {Antti J.} and Ostvald, {Roman V.} and Florian Kraus",
year = "2019",
month = "2",
day = "1",
doi = "10.1016/j.jfluchem.2018.11.010",
language = "English",
volume = "218",
pages = "11--20",
journal = "Journal of Fluorine Chemistry",
issn = "0022-1139",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Reactions of KBrF4 with platinum metals

AU - Ivlev, Sergei I.

AU - Malin, Artem V.

AU - Karttunen, Antti J.

AU - Ostvald, Roman V.

AU - Kraus, Florian

PY - 2019/2/1

Y1 - 2019/2/1

N2 - The reaction of various platinum metals (M = Ru, Os, Rh, Ir, Pd, Pt) with KBrF4 was investigated upon heating their mixtures to 400 °C. The formation of potassium fluorido platinum metallates in oxidation states +4 or +5, K2MF6 or KMF6, respectively, was observed in all cases. The obtained products were tested for their stability in water. Depending on the platinum metal, they were either stable, were reduced to the oxidation state +4, or were hydrolyzed to so far unidentified phases. K2RuF6, K2OsF6, α-K2PdF6, β-K2PdF6, which were previously only poorly characterized, were structurally reinvestigated by single crystal or powder X-ray diffraction, Raman and IR spectroscopy. The three former compounds crystallize isotypic in the trigonal, the latter in the hexagonal crystal system. The α→β phase transition of K2PdF6 was found to be reconstructive. Quantum chemical calculations were used to investigate the crystal structures.

AB - The reaction of various platinum metals (M = Ru, Os, Rh, Ir, Pd, Pt) with KBrF4 was investigated upon heating their mixtures to 400 °C. The formation of potassium fluorido platinum metallates in oxidation states +4 or +5, K2MF6 or KMF6, respectively, was observed in all cases. The obtained products were tested for their stability in water. Depending on the platinum metal, they were either stable, were reduced to the oxidation state +4, or were hydrolyzed to so far unidentified phases. K2RuF6, K2OsF6, α-K2PdF6, β-K2PdF6, which were previously only poorly characterized, were structurally reinvestigated by single crystal or powder X-ray diffraction, Raman and IR spectroscopy. The three former compounds crystallize isotypic in the trigonal, the latter in the hexagonal crystal system. The α→β phase transition of K2PdF6 was found to be reconstructive. Quantum chemical calculations were used to investigate the crystal structures.

KW - Platinum metals

KW - Potassium tetrafluoridobromate

KW - Recycling

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=85057116831&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85057116831&partnerID=8YFLogxK

U2 - 10.1016/j.jfluchem.2018.11.010

DO - 10.1016/j.jfluchem.2018.11.010

M3 - Article

VL - 218

SP - 11

EP - 20

JO - Journal of Fluorine Chemistry

JF - Journal of Fluorine Chemistry

SN - 0022-1139

ER -