Iridium Complex of N-Fused Bilatrienone: Oxidative Cleavage of N-Fused Porphyrin Induced by Iridium-Cyclooctadiene Complexation.
作者： Masatoshi Ishida , Shigeki Mori , Hiroyuki Furuta , Jibin Alex Abraham
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摘要: N-fused porphyrin (NFP) is a unique class of photostable near-infrared dyes with an 18π aromatic tetrapyrrole macrocyclic skeleton containing tri-fused pentacyclic moiety. Here we report the synthesis iridium complex bilatrienone as degradation product Ir-cyclooctadiene (cod)-induced oxidative cleavage NFP under aerobic conditions. Similar to native bilin chromophores, ring-opened featured broken π-conjugation circuit and exhibited broad visible absorption band. In contrast, metalation using iridium(I)(cod) inert atmosphere resulted in formation cod-isomerized ( κ 1 , η 3 -C 8 H 12 )-Ir complex.
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