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Structural Diversity of Five New Lanthanide Coordination Polymers Tuned by Different Salt Anions
Tao, Yinhua,Lou, Yongbing,Li, Yang,Chen, Jinxi Korean Chemical Society 2014 Bulletin of the Korean Chemical Society Vol.35 No.5
Five new lanthanide coordination polymers, $[Ln_2(1,4-NDC)_2(1,4-HNDC)_2(phen)_2]_n$ (Ln = Er (1), Yb (2)), and $[Ln_2(1,4-NDC)_3(phen)_2(H_2O)_2]_n$ (Ln = Nd (3), Gd (4), Er (5)) ($1,4-H_2NDC$ = 1,4-naphthalenedicarboxylic acid, phen = 1,10-phenanthroline), have been successfully prepared via the reaction of corresponding trivalent lanthanide salt, $1,4-H_2NDC$ and phen in the presence of NaOH and pyridine under hydrothermal condition. Pyridine plays a key role in the synthesis of these lanthanide coordination polymers. Single-crystal X-ray diffraction analyses indicate that compounds 1-5 all form a 2-D network while different salt anions result in the diversity of crystal structures. These lanthanide coordination polymers showed a considerable thermal stability in TGA analyses.
Structural Diversity of Five New Lanthanide Coordination Polymers Tuned by Different Salt Anions
Yinhua Tao,Yongbing Lou,Yang Li,Jinxi Chen 대한화학회 2014 Bulletin of the Korean Chemical Society Vol.35 No.5
Five new lanthanide coordination polymers, [Ln2(1,4-NDC)2(1,4-HNDC)2(phen)2]n (Ln = Er (1), Yb (2)), and [Ln2(1,4-NDC)3(phen)2(H2O)2]n (Ln = Nd (3), Gd (4), Er (5)) (1,4-H2NDC = 1,4-naphthalenedicarboxylic acid, phen = 1,10-phenanthroline), have been successfully prepared via the reaction of corresponding trivalent lanthanide salt, 1,4-H2NDC and phen in the presence of NaOH and pyridine under hydrothermal condition. Pyridine plays a key role in the synthesis of these lanthanide coordination polymers. Single-crystal X-ray diffraction analyses indicate that compounds 1-5 all form a 2-D network while different salt anions result in the diversity of crystal structures. These lanthanide coordination polymers showed a considerable thermal stability in TGA analyses.
Hongyi Qin,Yinhua Jin,Tao Gong,조유진,안치성,신철민,이창구,김태성 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2016 NANO Vol.11 No.4
A novel conducting copolymer based on amidoxime groups, polypyrrole and graphene oxide was synthesized by in situ copolymerization by usin g two monomers. The monomer, amidoxime-pyrrole, was synthesized by amidoximation of 1-(2-cyanoethyl) pyrrole. The other monomer, GO-pyrrole, was prepared via esterification between –COOH of GO and –NH2 of 1-(3-aminopropyl) pyrrole. The conductive ability of the copolymer was based on conductive π-conjugated system of polypyrrole backbone. The copolymer was able to be used as an effective sorption material for the preconcentration and recovery of uranium. The maximum of adsorption capacity for uranyl ion is as high as 149.57 mg/g.