Fluorescent ratiometry of tetrahomodioxacalix[4]arene pyrenylamides upon cation complexation

Jung Kyu Choi; Areum Lee; Seyoung Kim; Sihyun Ham; Kwanghyun No; Jong Seung Kim

doi:10.1021/ol0602396

Fluorescent ratiometry of tetrahomodioxacalix[4]arene pyrenylamides upon cation complexation

Jung Kyu Choi, Areum Lee, Seyoung Kim, Sihyun Ham, Kwanghyun No, Jong Seung Kim

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

C-1,2-alternate tetrahomodioxacalix[4]arene pyreneamides were synthesized. Pb²⁺ coordination gave a quenched monomer and excimer fluorescence emission, while upon Ca²⁺ ion binding, the receptor provides an enhanced excimer and declined monomer emission with ratiometric response. The excimer emission spectra changes are rationalized by frontier molecular orbitals that the effective Py-Py* interaction induces emission intensity increases upon Ca²⁺ ion complexation, whereas there is no such interaction observed upon Pb²⁺ binding.

Original language	English
Pages (from-to)	1601-1604
Number of pages	4
Journal	Organic Letters
Volume	8
Issue number	8
DOIs	https://doi.org/10.1021/ol0602396
Publication status	Published - 2006 Apr 13
Externally published	Yes

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry

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abstract = "C-1,2-alternate tetrahomodioxacalix[4]arene pyreneamides were synthesized. Pb2+ coordination gave a quenched monomer and excimer fluorescence emission, while upon Ca2+ ion binding, the receptor provides an enhanced excimer and declined monomer emission with ratiometric response. The excimer emission spectra changes are rationalized by frontier molecular orbitals that the effective Py-Py* interaction induces emission intensity increases upon Ca2+ ion complexation, whereas there is no such interaction observed upon Pb2+ binding.",

author = "Choi, {Jung Kyu} and Areum Lee and Seyoung Kim and Sihyun Ham and Kwanghyun No and Kim, {Jong Seung}",

year = "2006",

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T1 - Fluorescent ratiometry of tetrahomodioxacalix[4]arene pyrenylamides upon cation complexation

AU - Choi, Jung Kyu

AU - Lee, Areum

AU - Kim, Seyoung

AU - Ham, Sihyun

AU - No, Kwanghyun

AU - Kim, Jong Seung

PY - 2006/4/13

Y1 - 2006/4/13

N2 - C-1,2-alternate tetrahomodioxacalix[4]arene pyreneamides were synthesized. Pb2+ coordination gave a quenched monomer and excimer fluorescence emission, while upon Ca2+ ion binding, the receptor provides an enhanced excimer and declined monomer emission with ratiometric response. The excimer emission spectra changes are rationalized by frontier molecular orbitals that the effective Py-Py* interaction induces emission intensity increases upon Ca2+ ion complexation, whereas there is no such interaction observed upon Pb2+ binding.

AB - C-1,2-alternate tetrahomodioxacalix[4]arene pyreneamides were synthesized. Pb2+ coordination gave a quenched monomer and excimer fluorescence emission, while upon Ca2+ ion binding, the receptor provides an enhanced excimer and declined monomer emission with ratiometric response. The excimer emission spectra changes are rationalized by frontier molecular orbitals that the effective Py-Py* interaction induces emission intensity increases upon Ca2+ ion complexation, whereas there is no such interaction observed upon Pb2+ binding.

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JO - Organic Letters

JF - Organic Letters

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Fluorescent ratiometry of tetrahomodioxacalix[4]arene pyrenylamides upon cation complexation

Abstract

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