Crystal structure and thermal behavior of some cerium complexes with the fluorinated β-diketonate ligand 6,6,6-trifluoro-2,2-dimethyl-3,5-hexanedione (fdh)

M. Becht, K. H. Dahmen, V. Gramlich, A. Marteletti

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Complexes of the type Ce(fdh)4, M[Ce(fdh)4] and Ce(fdh)3phen were synthesized using the fluorinated β-diketone ligand fdh = 6,6,6-trifluoro-2,2-dimethyl-3,5-hexanedione (phen = 1,10-ortho-phenanthroline; M = NH4, Na). The result of a synthesis depends on the stoichiometry of the edducts. The complexes are non-hygroscopic, air-stable solids. Ce(fdh)4, Na[Ce(fdh)4] and phenCe(fdh)3 are thermally stable and can be sublimed, whereas NH4[Ce(fdh)4] decomposes during heating. The compounds were characterized by mass spectrometry, infrared spectroscopy and thermal analysis (TG/DTA). The crystal structures of Ce(fdh)4 and NH4[Ce(fdh)4] were determined. NH4[Ce(fdh)4] crystallized in the orthorhombic space group Pnna with a = 32.988(11), b = 17.989(9), c = 15.064(5) Å and Z = 8. Ce(fdh)4 crystallized in the monoclinic space group Cc with a = 20.85(3), b = 11.738(12), c = 17.05(5) Å, β = 95.65(19)° and Z = 4.

Original languageEnglish
Pages (from-to)27-33
Number of pages7
JournalInorganica Chimica Acta
Volume248
Issue number1
DOIs
Publication statusPublished - 1 Jul 1996
Externally publishedYes

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Cerium
cerium
Stoichiometry
Heating
Differential thermal analysis
Thermoanalysis
Mass spectrometry
Infrared spectroscopy
Mass Spectrometry
Spectrum Analysis
thermal analysis
Hot Temperature
Crystal structure
Ligands
Air
ligands
crystal structure
stoichiometry
mass spectroscopy
infrared spectroscopy

Keywords

  • β-diketonate complexes
  • Cerium complexes
  • Crystal structures
  • Fluorinated complexes

ASJC Scopus subject areas

  • Biochemistry
  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Crystal structure and thermal behavior of some cerium complexes with the fluorinated β-diketonate ligand 6,6,6-trifluoro-2,2-dimethyl-3,5-hexanedione (fdh). / Becht, M.; Dahmen, K. H.; Gramlich, V.; Marteletti, A.

In: Inorganica Chimica Acta, Vol. 248, No. 1, 01.07.1996, p. 27-33.

Research output: Contribution to journalArticle

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abstract = "Complexes of the type Ce(fdh)4, M[Ce(fdh)4] and Ce(fdh)3phen were synthesized using the fluorinated β-diketone ligand fdh = 6,6,6-trifluoro-2,2-dimethyl-3,5-hexanedione (phen = 1,10-ortho-phenanthroline; M = NH4, Na). The result of a synthesis depends on the stoichiometry of the edducts. The complexes are non-hygroscopic, air-stable solids. Ce(fdh)4, Na[Ce(fdh)4] and phenCe(fdh)3 are thermally stable and can be sublimed, whereas NH4[Ce(fdh)4] decomposes during heating. The compounds were characterized by mass spectrometry, infrared spectroscopy and thermal analysis (TG/DTA). The crystal structures of Ce(fdh)4 and NH4[Ce(fdh)4] were determined. NH4[Ce(fdh)4] crystallized in the orthorhombic space group Pnna with a = 32.988(11), b = 17.989(9), c = 15.064(5) {\AA} and Z = 8. Ce(fdh)4 crystallized in the monoclinic space group Cc with a = 20.85(3), b = 11.738(12), c = 17.05(5) {\AA}, β = 95.65(19)° and Z = 4.",
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T1 - Crystal structure and thermal behavior of some cerium complexes with the fluorinated β-diketonate ligand 6,6,6-trifluoro-2,2-dimethyl-3,5-hexanedione (fdh)

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AU - Dahmen, K. H.

AU - Gramlich, V.

AU - Marteletti, A.

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N2 - Complexes of the type Ce(fdh)4, M[Ce(fdh)4] and Ce(fdh)3phen were synthesized using the fluorinated β-diketone ligand fdh = 6,6,6-trifluoro-2,2-dimethyl-3,5-hexanedione (phen = 1,10-ortho-phenanthroline; M = NH4, Na). The result of a synthesis depends on the stoichiometry of the edducts. The complexes are non-hygroscopic, air-stable solids. Ce(fdh)4, Na[Ce(fdh)4] and phenCe(fdh)3 are thermally stable and can be sublimed, whereas NH4[Ce(fdh)4] decomposes during heating. The compounds were characterized by mass spectrometry, infrared spectroscopy and thermal analysis (TG/DTA). The crystal structures of Ce(fdh)4 and NH4[Ce(fdh)4] were determined. NH4[Ce(fdh)4] crystallized in the orthorhombic space group Pnna with a = 32.988(11), b = 17.989(9), c = 15.064(5) Å and Z = 8. Ce(fdh)4 crystallized in the monoclinic space group Cc with a = 20.85(3), b = 11.738(12), c = 17.05(5) Å, β = 95.65(19)° and Z = 4.

AB - Complexes of the type Ce(fdh)4, M[Ce(fdh)4] and Ce(fdh)3phen were synthesized using the fluorinated β-diketone ligand fdh = 6,6,6-trifluoro-2,2-dimethyl-3,5-hexanedione (phen = 1,10-ortho-phenanthroline; M = NH4, Na). The result of a synthesis depends on the stoichiometry of the edducts. The complexes are non-hygroscopic, air-stable solids. Ce(fdh)4, Na[Ce(fdh)4] and phenCe(fdh)3 are thermally stable and can be sublimed, whereas NH4[Ce(fdh)4] decomposes during heating. The compounds were characterized by mass spectrometry, infrared spectroscopy and thermal analysis (TG/DTA). The crystal structures of Ce(fdh)4 and NH4[Ce(fdh)4] were determined. NH4[Ce(fdh)4] crystallized in the orthorhombic space group Pnna with a = 32.988(11), b = 17.989(9), c = 15.064(5) Å and Z = 8. Ce(fdh)4 crystallized in the monoclinic space group Cc with a = 20.85(3), b = 11.738(12), c = 17.05(5) Å, β = 95.65(19)° and Z = 4.

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