S 70 Solid-state structure of copper complexes of N-(2-carboxyethyl)chitosan / L. S. Molochnikov, A. V. Pestov, E. V. Zabolotskaya, Yu. G. Yatluk // Journal of Applied Spectroscopy. - 2008. - Vol. 75, № 5. - P648-652 : il. - Bibliogr. : p. 652 (17 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ХИТОЗАНЫ -- СОЕДИНЕНИЯ МЕДИ -- СПЕКТРОСКОПИЯ -- ЭЛЕКТРОННЫЙ СПИН РЕЗОНАНС Аннотация: The sorptivity for ions of the Irving-Williams series (Zn2+, Cu2+, Co2+, Ni2+) was estimated for the chelate sorbent N-(2-carboxyethyl)chitosan cross-linked by nanosecond electron-beam irradiation. The maximum capacity reaches 3.7 mmol/g using a mixture of the appropriate sulfates at pH 4.5. The selectivity of copper sorption is 80%. The structure of the coordination sphere of the copper complexes with N-(2-carboxyethyl)chitosan was investigated by ESR spectroscopy Полный текст |