Microwave synthesis, charaterisation and electrochemical property of cucurbit[n]urils

Abstract

Cucurbit[n]urils (CBs) were synthesised using microwave irradiation technique, and the factors to affect the yields of CBs such as total reaction time, interval time and microwave power were investigated. The structure and electrochemical property of CBs were characterised by ¹H nuclear magnetic resonance, Fourier transform infrared and cyclic voltammetry. The results showed that CB powder with yield of 85·72% can be obtained under optimal conditions of total reaction time 300 s, heating 1 min with interval 90 s and microwave power 280 W, and electrochemical property of Fe₃O₄ is intensified significantly after CBs were loaded on the surface of Fe₃O₄. Surprisingly, compared with the conventional techniques, microwave preparation time of CBs is shortened 60 times.

Keywords:

• Microwave irradiation technique
• Cucurbit[n]urils
• Synthesis
• Charaterisation
• Electrochemical property

Acknowledgements

This work was supported by the National Natural Science Foundation of China (grant no. 21007050), Scientific Research Program Funded by Shaanxi Provincial Education Department, China (grant no. 12JK0455) and the Beilin District Foundation of Xi’an of China (grant no. GX1205).