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Example of uranium(IV) insertion within a macrocyclic crown ether with coexistence of the metal in two oxidation states

Conference:

Abstract

Reaction of UCl/sub 4/ with 18-crown-6 in tetrahydrofuran yields (UCl/sub 4/)/sub 3/ (18-crown-6)/sub 2/ which on recrystallization in nitromethane, gives a partially oxidized and hydrolyzed product whose structure has been investigated by X-ray diffraction. The compound crystallizes in the orthorhombic system. The cell contains eight UCl/sub 3//sup +/ cations each inserted within a crown molecule and four (UO/sub 2/Cl/sub 3/(OH)(H/sub 2/O))/sup 2 -/anions having a pentagonal bipyramidal structure. Four solvated nitromethane molecules are also present. The compound represents one of the very few examples in which uranium exists in two oxidation states, and the first example in which its insertion within a crown macrocycle has been proved by an X-ray diffraction study.
Authors:
Bombieri, G; De Paoli, G; [1]  Immirzi, A
  1. Consiglio Nazionale delle Ricerche, Padua (Italy). Lab. di Chimica e Tecnologia dei Radioelementi
Publication Date:
Jan 01, 1978
Product Type:
Conference
Reference Number:
AIX-10-432526; EDB-79-084329
Resource Relation:
Journal Name: J. Inorg. Nucl. Chem.; (United Kingdom); Journal Volume: 40:11; Conference: Italian Association of inorganic chemistry meeting, Bressanone, Italy, Sep 1977
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; URANIUM COMPLEXES; CHEMICAL PREPARATION; CHEMICAL REACTIONS; CYCLOALKANES; FURANS; INFRARED SPECTRA; MOLECULAR STRUCTURE; NITRO COMPOUNDS; ORTHORHOMBIC LATTICES; POLYETHYLENE GLYCOLS; RECRYSTALLIZATION; URANIUM CHLORIDES; VALENCE; X-RAY DIFFRACTION; ACTINIDE COMPLEXES; ACTINIDE COMPOUNDS; ALKANES; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; COMPLEXES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; HALIDES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; HYDROCARBONS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; ORGANIC POLYMERS; POLYMERS; SCATTERING; SPECTRA; SYNTHESIS; URANIUM COMPOUNDS; 400702* - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
OSTI ID:
6255603
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: JINCA
Submitting Site:
INIS
Size:
Pages: 1889-1894
Announcement Date:

Conference:

Citation Formats

Bombieri, G, De Paoli, G, and Immirzi, A. Example of uranium(IV) insertion within a macrocyclic crown ether with coexistence of the metal in two oxidation states. United Kingdom: N. p., 1978. Web.
Bombieri, G, De Paoli, G, & Immirzi, A. Example of uranium(IV) insertion within a macrocyclic crown ether with coexistence of the metal in two oxidation states. United Kingdom.
Bombieri, G, De Paoli, G, and Immirzi, A. 1978. "Example of uranium(IV) insertion within a macrocyclic crown ether with coexistence of the metal in two oxidation states." United Kingdom.
@misc{etde_6255603,
title = {Example of uranium(IV) insertion within a macrocyclic crown ether with coexistence of the metal in two oxidation states}
author = {Bombieri, G, De Paoli, G, and Immirzi, A}
abstractNote = {Reaction of UCl/sub 4/ with 18-crown-6 in tetrahydrofuran yields (UCl/sub 4/)/sub 3/ (18-crown-6)/sub 2/ which on recrystallization in nitromethane, gives a partially oxidized and hydrolyzed product whose structure has been investigated by X-ray diffraction. The compound crystallizes in the orthorhombic system. The cell contains eight UCl/sub 3//sup +/ cations each inserted within a crown molecule and four (UO/sub 2/Cl/sub 3/(OH)(H/sub 2/O))/sup 2 -/anions having a pentagonal bipyramidal structure. Four solvated nitromethane molecules are also present. The compound represents one of the very few examples in which uranium exists in two oxidation states, and the first example in which its insertion within a crown macrocycle has been proved by an X-ray diffraction study.}
journal = {J. Inorg. Nucl. Chem.; (United Kingdom)}
volume = {40:11}
place = {United Kingdom}
year = {1978}
month = {Jan}
}