Fennegien S. Keij

Synthesis and co-ordination chemistry of a novel dinucleating chelating triazole ligand. The crystal structure of bis-µ-[4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole-N′, µ-N¹,µ-N²,N″,]-bis[aquachloro-nickel(<scp>II</scp>)] dichloride tetrahydrate

Fennegien S. Keij, R. A. G. de Graaff, Jaap G. Haasnoot et al. · Journal of the Chemical Society Dalton Transactions · 1984 · 60 citations

Natural Sciences, Chemistry, Crystal Structure +16

A pyrazole ligand yielding both chloro-bridged dinuclear and tetranuclear copper(II) compounds. The crystal and molecular structure of bis[μ-chloro-chloro(3,4-dimethyl-5-phenylpyrazole) (4,5-dimethyl-3-phenylpyrazole)copper(II)] and of (μ4-oxo)hexakis(μ-chloro)tetrakis(3,4-dimethyl-5-phenylpyrazole)tetracopper(II)

Fennegien S. Keij, Jaap G. Haasnoot, Ad J. Oosterling et al. · Inorganica Chimica Acta · 1991 · 57 citations

Natural Sciences, Chemistry, Inorganic Chemistry +12

An unusual hexafluorosilicato-bridged chain compound; crystal structure of catena-(μ-Hexafluorosilicato)-tetrakis(5-phenylpyrazole)copper(II)

Fennegien S. Keij, R. A. G. de Graaff, Jaap G. Haasnoot et al. · Inorganica Chimica Acta · 1989 · 31 citations

Natural Sciences, Chemistry, Materials Science +11

The first difluoro-bridged copper chain, and alternating zig-zag, stabilized by a unique intrachain hydrogen bond system. Crystal and molecular structure of Catena-poly[di-µ-fluoro-bis(3-methyl-4-ethyl-5-phenylpyrazole)copper(<scp>II</scp>)]

Fennegien S. Keij, R. A. G. de Graaff, Jaap G. Haasnoot et al. · Journal of the Chemical Society Chemical Communications · 1988 · 19 citations

Natural Sciences, Chemistry, Materials Science +15

Spectroscopic and magnetic identification of difluoro-bridged zigzag copper chains with substituted 5-phenylpyrazole ligands. Structural identification of catena-poly [bis(3-methyl-4-ethyl-5-phenylpyrazole)copper-di-μ-fluoro]

Ad J. Oosterling, R. A. G. de Graaff, Jaap G. Haasnoot et al. · Inorganica Chimica Acta · 1989 · 11 citations

Natural Sciences, Chemistry, Materials Science +16