Direct synthesis of yttrium acetylacetonate complexes in organic systems

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Russian Journal of Coordination Chemistry

OSTI ID:39256

Kurskov, S N; Varlamov, N V; Labunskaya, V I; Koblova, O E; Bol`shakov, A F ^[1]

---

1. Saratov State Univ. (Russian Federation)

Oxidation dissolution of metallic yttrium in organic systems containing acetylacetone (HAcac) as a main component is studied. Yttrium dissolving in HAcac and in binary HAcac mixtures with acetone (Ac), ether, dioxane, and acetonitrile results in the formation of a complex of formula YAcac{sub 3}{center_dot}2H{sub 2}O. In HAcac systems with 2,2-dipyridyl (Dipy), pyridine (Py), dimethyl sulfoxide (DMSO), dimethylformamide (DMF), 2-pyrrolidone (P), and acetic acid (CH{sub 3}COOH) the following compounds are generated, respectively: YAcac{sub 3}{center_dot}H{sub 2}O{center_dot}1/2Dipy, YAcac{sub 3}{center_dot}H{sub 2}O{center_dot}Py, YAcac{sub 3}{center_dot}H{sub 2}O{center_dot}DMSO, YAcac{sub 3}{center_dot}5/3H{sub 2}O{center_dot}1/3DMF, YAcac{sub 3}{center_dot}5/3H{sub 2}O{center_dot}1/3P, and Y(CH{sub 3}COO){sub 3}{center_dot}2H{sub 2}O. IR spectroscopy confirms the presence of water molecules in the compounds. Thermogravimetric analysis shows that the complexes do not sublimiate at heating, and, at T>300{degrees}C, their destruction proceeds with the formation of yttrium oxide as the ultimate product of thermolysis.

• OSTI ID: 39256
• Journal Information: Russian Journal of Coordination Chemistry, Journal Name: Russian Journal of Coordination Chemistry Journal Issue: 1 Vol. 20; ISSN RJCCEY
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ABSORPTION SPECTROSCOPY
ACETYLACETONE
CHEMICAL PREPARATION
HYDRATES
THERMAL GRAVIMETRIC ANALYSIS
YTTRIUM COMPLEXES