Synthesis and characterisation of rutin-calcium
by Ya-ling Jiang; Qiu-wei Liu; Guang-yu Zhai
International Journal of Nanomanufacturing (IJNM), Vol. 14, No. 3, 2018

Abstract: Rutin and calcium acetate at 86°C, pH = 8.5, reflux 6h, A rutin-ca complex was synthesised in methanol. UV-Vis spectroscopy: band I shifted from 355 nm to 359 nm, red shifted to 4 nm. Band II moved from 257 nm to 266 nm and shifted red by 9 nm. IR: the absorption peak of ruthenium is broadened, υ_C = _O 1,632.45 cm⁻¹, red shift of 23 cm⁻¹, the characteristic absorption peak of benzene ring has not changed, and the absorption peak of 618.43 cm⁻¹, metal coordination bond υ_Ca-O stretching vibration peak. ¹H-NMR: 3'-OH and 4'-OH hydroxyl groups disappear, showing coordination with calcium ions. Thermal analysis showed rutin with ane calcium ion complex.

Online publication date: Thu, 26-Jul-2018

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