Metal ion induced FRET On-Off in naphthyl-pyrenyl pendent tetrahomodioxacalix[4]arene |
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| Authors: | Ji Hee Jung Hyun Jung Kim Su Yeon Lee Kwanghyun No Jong Seung Kim |
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| Institution: | a Department of Chemistry, Korea University, Seoul 136-701, Republic of Korea
b Department of Chemistry, Sookmyung Women’s University, Seoul 140-742, Republic of Korea |
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| Abstract: | A novel tetrahomodioxacalix4]arene (7) bearing both naphthyl- and pyrenyl-amide pendants was synthesized as FRET-based fluorometric sensor for Cu2+ ion. Intramolecular FRET from the naphthalene emission to the pyrene absorption affords Cu2+ ion selectivity over other metal ions. Upon addition of Cu2+ ion, the complex solution of 7 gave a significantly decreased pyrene acceptor emission along with an enhancement of naphthalene donor emission via FRET On-Off event. |
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| Keywords: | FRET Fluorescence Calixarenes Homooxacalixarene Copper |
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