Tetrakis (diethyl??phosphonat)??, Tetrakis (ethyl??phenylphosphinat)??und Tetrakis (diphenylphosphin??oxid)??substituierte Phthalocyanine

…, K Gschwendner, I Rötzer, P Kreitmeier

Index: Maerkl, Gottfried; Gschwendner, Karl; Roetzer, Ingrid; Kreitmeier, Peter Helvetica Chimica Acta, 2004 , vol. 87, # 4 p. 825 - 844

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Citation Number: 20

Abstract

The title compounds 7, 9, and 11 are obtained by tetramerization of diethyl (3, 4- dicyanophenyl) phosphonate (5), ethyl (3, 4-dicyanophenyl) phenylphosphinate (8), and 4- (diphenylphosphinyl) benzene-1, 2-dicarbonitrile (10). The 31P-NMR spectra of the phthalocyanines 7, 9, and 11 and of their metal complexes present five to eight signals confirming the formation of four constitutional isomers with the expected C4h, D2h, C2v, ...