期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 9, 期 13, 页码 4811-4817出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0ob01106a
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资金
- DST
- CSIR
A new host molecule, having two azacrown derivatives bridged by luminescent naphthalene diimide functionality, is found to form a [3]pseudorotaxane derivative with imidazolim ion-based guest molecules in non-polar solvents through hydrogen-bonded adduct formation. Depending upon the length of the covalent linker that links the imidazolium ion and the luminescent naphthalene fragment in the guests, the [3] pseudorotaxane adducts adopt different conformation or orientation with varying pi-pi/donor-acceptor interaction. The mechanism for the naphthalene-based luminescence quenching by NDI fragment on adduct formation was found to be a combination of static, as well as dynamic with static quenching as the dominant one.
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