Synthese und Charakterisierung neuer Hemiporphyrazinato‐Nickelkomplexe

Synthesis and Characterization of New Hemiporphyrazinato Nickel Complexes The new substituted (hemiporphyrazinato)nickel complexes [HpNi] 3–9 and 11–14 , the (heminaphthoporphyrazinato)‐nickel complexes 15–19 [HnpNi], and the hemianthraceno‐phorphyrazine complex [HapNi] 20 are prepared from isoin‐dolenines 1a–e and 10a–d , diaminopyridines 2a–e and nickel acetate. The compounds were characterized by 1 H‐ and 13 C‐NMR spectroscopy. The 1 H‐NMR spectrum of the mixture of the 3,18/3,19‐substituted (C 2 v /C 2 h ) complexes is discussed.