Vacuum sublimation of the reaction products of neodymium dipivaloylmethanate and erbium dipivaloylmethanate with pivalic acid

Journal Article · Sun May 01 04:00:00 EDT 1994 · Russian Journal of Coordination Chemistry

OSTI ID:47966

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

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1. M.V. Lomonosov Moscow State Univ. (Russian Federation)

The processes taking place during the vacuum sublimation of solid complexes of individual rare-earth elements obtained in the M(dpm){sub 3}-nHpiv=hexane systems (M = Nd, Er; Hdpm = dipivaloylmethane; Hpiv = pivalic acid; n = 1, 2, 3) have been studied. It has been noted that the mixed-ligand complexes Er(dpm){sub 3}{center_dot}Hpiv and Nd(dpm){sub 2}piv form in the systems studied when n = 1 and that they disproportionate at different temperatures during heating in a vacuum. It has been discovered that the disproportionation processes of these complexes can be utilized to increase the efficiency of sublimation methods for separating mixtures of neodymium dipivaloylmethanate and erbium dipivaloylmethanate.

• OSTI ID: 47966
• Journal Information: Russian Journal of Coordination Chemistry, Journal Name: Russian Journal of Coordination Chemistry Journal Issue: 7 Vol. 19; ISSN RJCCEY
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ERBIUM COMPLEXES
NEODYMIUM COMPLEXES
OXIDATION
PIVALIC ACID
REDUCTION
SEPARATION PROCESSES
SUBLIMATION