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An amphiphilic metalloporphyrin, cobalt (II) 5,10, 15-tri(p-octadecyloxyphenyl)-20-(p-hydroxyphenyl)porphyrin (CoPPC 18 ) was synthesized and characterized. The molecules of CoPPC 18 alone form moderate stable monolayer at the air-water interface and a clear phase transition was observed in the surface pressure-area isotherm. An optical Mach-Zhender interferometer was prepared...
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