Spectroscopy and laser characterization of synthesized supramolecular host cucurbit[7]uril using aqueous Rhodamine B dye

Pramana

Alok K Ray¹  Deepak R Boraste³  Sandip K Nayak²  Ganapati Shankarling1³  Monika Gupta¹ 

[1] Laser & Plasma Technology Division, Bhabha Atomic Research Centre, Mumbai 400 085, India$$;Bio-organic Division, Bhabha Atomic Research Centre, Mumbai 400 085, India$$;Department of Dyestuff, Institute of Chemical Technology, Matunga, Mumbai 400 019, India$$

关键词: Macrocyclic host;    cucurbit[7]uril;    host–guest complex;    Rhodamine B;    aqueous dye lasers.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

Recent demonstration in augmenting the efficiency of aqueous Rhodamine dye lasers using cucurbit[7]uril (CB[7]), a deaggregating and photostabilizing host, has drawn interest in the synthesis and characterization of spectroscopic grade CB[7] in larger quantities. Synthesis of cucurbituril group of macrocycles always leads to the formation of various homologues of CB[n]s (n=5–7) with CB[7] as the minor product. The literature procedure has been optimized to get pure CB[7] in 12–14% yield by fractional crystallization and the purity was checked by NMR, MS and spectrophotometric titration. Laser performances of the synthesized and commercial CB[7] sample as an additive were evaluated using Nd-YAG (532 nm) pumped Rhodamine B aqueous dye lasers and comparable results were obtained.

【 授权许可】

Unknown