Fluorescent ratiometry of tetrahomodioxacalix[4]arene pyrenylamides upon cation complexation
作者： Jung Kyu Choi , Areum Lee , Seyoung Kim , Sihyun Ham , Kwanghyun No
DOI: 10.1021/OL0602396
关键词:
摘要: 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 declined emission with ratiometric response. The spectra changes are rationalized by frontier molecular orbitals that effective Py−Py* interaction induces intensity increases complexation, whereas there is no such observed binding.
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