摘要
稀土元素对农作物有明显的增产作用.萘氧乙酸属植物生长素,能促进植物的新陈代谢和光合作用,提高抗逆性,刺激作物发芽生根.因此稀土萘氧乙酸配合物的合成、性质及其植物生理效应的研究,对进一步促进农业生产有潜在的意义.我们在水溶液中用氯化稀土和α-萘氧乙酸反应,合成了7种固体配合物并研究了其性质.此项研究尚未见报道.
Seven new solid complexes of rare earth ( Ⅲ ) with naphthyloxyacetate ion with a general formula of Ln(NOA)3.xH2O(Ln = La3+, Nd3+, Sm3+, Gd3+, Tb3+, Dy3+, x = 2; Ln = Y3+, x=1; NOA = C10H7OCH2COO- ) were synthesized in aqueous solution. The electronic spectra of complexes were observed. The molar conductance data show that the complexes do not ionize in DMF. IR spectra and 1H NMR spectra or XPS measurement indicate that the rare earth (Ⅲ ) ions are coordinated with the carboxylate ions in Ln(NOA)3.xH2O complexes, and these coordinate bonds are not purely ionic i. e. , but have some covalent character.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第2期157-159,共3页
Chemical Journal of Chinese Universities
关键词
萘氧乙酸
稀土金属
络合物
Rare earth, a-Naphthyloxyacetic acid, Complexes
