Journal Article

FZJ-2019-06109

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Silver, Gold, Palladium, and Platinum N-heterocyclic Carbene Complexes Containing a Selenoether-Functionalized Imidazol-2-ylidene Moiety

Klauke, K. (Corresponding author) ; Gruber, I. ; Knedel, T.-O. ; Schmolke, L. ; Barthel, J.FZJ* ; Breitzke, H. ; Buntkowsky, G.Extern* ; Janiak, C.

2018
ACS Publ. Washington, DC

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Please use a persistent id in citations: doi:10.1021/acs.organomet.7b00678

Abstract: The selenoether-functionalized imidazolium salt N-[(phenylseleno)methylene)]-N′-methylimidazolium chloride (LH+Cl–) was transformed into the metal–carbene complexes [AgCl(L)], [AuCl(L)], [PdCl2(L)], and [PtCl2(L)] by the reaction with Ag2O and an additional transmetalation reaction of [AgCl(L)] with [(THT)AuCl], [(COD)PdCl2], and [(COD)PtCl2], respectively (THT = tetrahydrothiophene, COD = cyclooctadiene). The compound [AuI2Cl(L)] was prepared by oxidation of [AuCl(L)] with elemental iodine. The microwave-assisted decomposition of [PdCl2(L)] in the ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIm]NTf2) or in propylene carbonate led to the formation of Pd17Se15 nanoparticles of 51 ± 17 or 26 ± 7 nm diameter, respectively. The decomposition of the platinum complex resulted in either small Pt clusters around 1 nm size from the ionic liquid suspension or Pt nanoparticles of 3 ± 1 nm diameter in propylene carbonate. High-resolution X-ray photoelectron spectroscopy (HR-XPS) and 13C cross-polarization magic-angle spinning (CP MAS) NMR indicated that the surface of Pt clusters and crystalline Pt nanoparticles is formed by an amorphous Pt(II)/Se shell and by carbene ligand residues.

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Contributing Institute(s):

1. Materialwissenschaft u. Werkstofftechnik (ER-C-2)

Research Program(s):

1. 131 - Electrochemical Storage (POF3-131) (POF3-131)

Appears in the scientific report 2019

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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