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3‐Pyridyl‐5,15‐diazaporphyrin nickel(II) serves as a bidentate metalloligand for platinum(II), ruthenium(II), and rhenium(I) metal centers. Single‐crystal X‐ray diffraction analysis of these metal complexes unambiguously reveals the presence of a dative bond between the outer metal center and the meso‐nitrogen atom. The UV/Vis absorption spectra of the complexes show substantially red‐shifted bands...
Ein guter Fang: Bei der Oxidation eines Phenylethinyl‐PtII‐Pinzettenkomplexes mit Iod läuft eine formale reduktive Eliminierung ab, bei der jedoch PtII nicht freigesetzt, sondern durch den 2‐Pyridyl‐Substituenten am NiII‐Porphyrin abgefangen wird. Die ungewöhnliche Aktivität des PtII‐Komplexes führt zur Bildung eines meso‐Spiro[cyclopentadien‐isoporphyrins].
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