Discrete monomeric bismuth(III) triflate trapped by bis-selenone

Mandal, A and G, Prabusankar (2014) Discrete monomeric bismuth(III) triflate trapped by bis-selenone. Masters thesis, Indian institute of technology Hyderabad.

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Abstract

A series of imidazolium salts were made from the reaction between alkyl or aralkyl dihalide and 1-alkyl imidazole. These were treated with Selenium metal powder in the presence of K2CO3 as base to generate insitu carbene to make imidazoselones. The product formation was unambiguously confirmed by NMR (1HNMR, 13C NMR, DEPT and HSQC, HMBC correlations), FTIR and UV-vis studies. In addition the solid-state structure also proved by single crystal X-ray diffraction technique. These newly prepared imidazoselones were subjected towards bismuth(III)triflate to get tetra selenium coordinated bismuth(III)triflate complex which was unambiguously confirmed by single crystal X-ray diffraction technique. Further it was characterized by NMR (1HNMR, 13C NMR, DEPT and 19F NMR), FT-IR, UVvis and powder X-ray diffraction technique. The thermal stability of the bismuth(III)triflate complex was carried out by TGA.

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