Fluorescence Switch of Tweezers-type Bis(zinc porphyrin) Complex Regulated by Double Guests of Cu+ Ion and DABCO

Chem. J. Chinese Universities

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Fluorescence Switch of Tweezers-type Bis(zinc porphyrin) Complex Regulated by Double Guests of Cu⁺ Ion and DABCO

ZHOU Zai-Chun^1,2, ZHU Yi-Zhou¹, ZHENG Jian-Yu¹*

1. State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China;
2. School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China

Received:2007-09-20 Revised:1900-01-01 Online:2008-06-10 Published:2008-06-10
Contact: ZHENG Jian-Yu

Abstract

Abstract: A new tweezers-type bis(zinc porphyrin)(1), 1,8-bis{4-[N-(N,N-zinc-5,10,15,20-tetraphenylporphyrin-4'-yl)-amino carbonyl]benzyloxy}anthraquinone, with double inclusion function area can accommodate Cu⁺ ion or DABCO(1,4-diazabicyclo[2.2.2]octane). Both of Cu⁺ ion and free DABCO can lead to fluorescence quenching of compound 1. The former is due to occurrence of PET after complexation and the latter is due to the occurrence of dynamic fluorescence quenching. Both DABCO and Cu⁺ ion can capture mutually in the solution due to the formation of their complexes. A controllable off/on fluorescence molecular switch process is proposed by addition of the two guests.

Key words: Bis(zinc porphyrin), Molecular switch, Fluorescence quenching, Photo-induced electron transfer(PET)

CLC Number:

O627
O614

TrendMD:

ZHOU Zai-Chun^1,2, ZHU Yi-Zhou¹, ZHENG Jian-Yu¹*. Fluorescence Switch of Tweezers-type Bis(zinc porphyrin) Complex Regulated by Double Guests of Cu⁺ Ion and DABCO[J]. Chem. J. Chinese Universities, doi: .

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Fluorescence Switch of Tweezers-type Bis(zinc porphyrin) Complex Regulated by Double Guests of Cu⁺ Ion and DABCO

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