[The IR spectra of complexes of fiber containing amidoxime groups with Fe(III), Co(II), Ni(II), Cd(II) and Hg(II)].
By the reaction Fe3+, Co2+, Ni2+, Cd2+ and Hg2+ with fiber containing amidoxime groups modified polyacrylonitrile fiber (AOCF), a series of coordinate complexes-AOCF-Fe(III), AOCF-Co(II), AOCF-Ni(II), AOCF-Cd(II) and AOCF-Hg(II) were prepared in acid medium. The fibers containing amidoxime groups with and without metal ions were taken for FTIR in the range of 4000-400 cm(-1). Their major bonds were assigned and compared. The results showed that in all complexes some bands (vC-N, vC=N and vN-O) were strengthened and a certain shift to higher wave number took place in the FTIR spectra with 4-21 cm(-1) shifts observed. The amidoxime groups and metal ions were bonding with coordinated bond.
Wu
Zhi-chuan
ZC
Department of Biochem. Engn., Anhui University of Technology and Science, Wuhu 241000, China.
Tao
Ting-xian
TX
Wang
Xue-qian
XQ