Titan- und Vanadiumkomplexe mit 4-[1-(N′-Benzoylhydrazino)-l-phenylmethyliden]- 3-methyl-1-phenyl-pyrazol-5-on. Röntgenkristallstruktur von 4-[1-(N′-Benzoylhydrazino)-1-phenyl-methyliden]-3-methyl-1-phenyl- pyrazol-5-on / Titanium- and Vanadium Complexes of 4-[1-(N′-Benzoylhydrazino)-1-phenylmethylidene]-3-methyl-1-phenyl-pyrazol-5-one. Structure of 4-[1-(N′-Benzoylhydrazino)-1-phenyl-methylidene]-3-methyl-1-phenyl-pyrazol-5-one
Year: 1996
Type: article
Abstract: By reaction of 1-phenyl-3-methyl-4-benzoyl-pyrazol-5-one with benzoylhydrazine the tridentate diacidic ligand 4-[1-(N′-benzoylhydrazino)-1-phenyl-m ethylidene]-3-m ethyl-lphenyl-1-pyrazol-5-one (H2L) is formed which gives complexes ML2 with tetravalent titanium and vanadium ions. The ligand and its complexes were characterized by mass spectroscopy. The vanadium(IV) complex can be oxidised and reduced electrochemicallv. The chemical bonding in the titanium(IV) complex and in the ligand was studied by IR and 13C NMR spectroscopy. The molecular structure of 4-[1-(N′-benzoylhydrazino)-1-phenyl-methylidenel-3-m ethyl-lphenyl- pyrazol-5-one was determined by X-ray analysis. Crystal data: a = 9.159(3) Å, b = 11.014(4) Å, c = 11.136(5) Å, a = 90.11 (2)°, β = 101.84(3)°, γ = 113.01 (2)°; space group P1̄, Z = 2.
Source: Zeitschrift für Naturforschung B
Institution: University of Potsdam
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,712
OpenAlex ID: W1997751546