Synthesis, structure, and properties of REE mixed-ligand complexes containing dipivaloylmethanate and pivalate ligands: Mixed-ligand complexes of neodymium, europium, gadolinium, dysprosium, and terbium

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Russian Journal of Coordination Chemistry

OSTI ID:161854

Kuz`mina, N P; An` Tu, Z; Martynenko, L I ^[1]

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1. Moscow State Univ. (Russian Federation); and others

Solid mixed-ligand complexes (MLC) formed by the action of pivalic acid on Nd, Eu, Gd, Dy, and Tb dipivaloylmethanates (MDpm{sub 3}) in hexane are isolated. It is established from IR-spectroscopic analysis that the derivatives of neodymium, europium, and gadolinium are of composition MDpm{sub 2}Piv{center_dot}xHdpm (0 < x < 0.5), and, in the case of Dy and Tb, a mixture of the complexes of composition MDpm{sub 3}{center_dot}Hpiv and MDpm{sub 3}{center_dot}Hpiv and MDpm{sub 2}Piv{center_dot}xHDpm forms. An X-ray diffraction analysis is performed for monocrystalline MLC of composition [GdDpm{sub 2}Piv{center_dot}H{sub 2}O]{sub 2} obtained in recrystallization on the initial gadolinium MLC. It is established that recrystallization of the neodymium MLC results in hydrolysis and carbonization of this compound to give an MLC of composition [Nd{sub 8}Dpm{sub 8}Piv{sub 6}(OH){sub 6}(CO{sub 3}){sub 2}(H{sub 2}O){sub 2}{center_dot}]4H{sub 2}O, for which X-ray diffraction analysis is also carried out.

• OSTI ID: 161854
• Journal Information: Russian Journal of Coordination Chemistry, Journal Name: Russian Journal of Coordination Chemistry Journal Issue: 9 Vol. 20; ISSN RJCCEY
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ABSORPTION SPECTROSCOPY
CHEMICAL PREPARATION
CRYSTAL STRUCTURE
DYSPROSIUM COMPLEXES
EUROPIUM COMPLEXES
GADOLINIUM COMPLEXES
MOLECULAR STRUCTURE
NEODYMIUM COMPLEXES
TERBIUM COMPLEXES
X-RAY DIFFRACTION