Synthesis and characterization of metal-free and metallo-phthalocyanines with four pendant coumarinthio/oxy-substituents

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• 作者：Aliye Aslı ; Esenpı ; nar ; Mustafa Bulut
• 关键词：Coumarin (2H-1-benzopyran-2-one) ; Phthalocyanines ; Cobalt ; Zinc ; Nickel ; Copper
• 刊名：Dyes and Pigments
• 出版年：2008
• 期刊代码：31_01437208
• 类别：ms
• 出版时间：2008
• 卷：76
• 期：1
• 页码：249-255
• 文件大小：276 K

摘要

The synthesis of novel metal-free and metallo-phthalocyanines with four, peripheral 7-thio- and 7-oxo-4-methyl-2H-1-benzopyran-2-one (coumarin) groups were prepared by cyclotetramerization of 7-(3,4-dicyanophenylthio)-4-methylcoumarin and 7-(3,4-dicyanophenoxy)-4-methylcoumarin. The novel chromogenic compounds were characterized by elemental analysis, ¹H NMR, ¹³C NMR, Mass, IR and UV–vis spectral data. The electronic spectra exhibit a band of coumarin identity with characteristic Q and B bands of the phthalocyanine core. The IR spectra showed two characteristic intense bands at 1718 cm⁻¹ for lactone carbonyl and at 1595 cm⁻¹ for the α, β unsaturated doubled bond.