ISSN:
1434-1948
Schlagwort(e):
Amides
;
Nickel
;
Polynuclear complexes
;
Radicals
;
Redox chemistry
;
Chemistry
;
General Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
The new bimetallic nickel(II) compound (PPh4)4[Ni2(2)]·6H2O (3), where H8[2] stands for N,N′,N′′,N′′′-1,2,4,5-benzene-tetrayltetrakis(oxamic acid), has been synthesized and its crystal structure determined by single-crystal X-ray diffraction. The structure of 3 consists of [Ni2(η4:η4-2)]4- anions, tetraphenylphosphonium cations, and water molecules. Facile one-electron oxidation of the square-planar diamagnetic dinickel(II) complex [Ni2(η4:η4-2)]4- generates the metallo-radical species [Ni2(η4:η4-2·+)]3- with characteristic intra-ligand π-cation radical transitions in the visible region (475-550 nm) as well as a typical quasi-isotropic EPR signal at g ≈ 2.0.
Zusätzliches Material:
3 Ill.
Materialart:
Digitale Medien
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