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Magnetic exchange interaction in amide complexes of uranium (IV) tetrachloride

✍ Scribed by Chie Miyake; Yukio Hinatsu; Shosuke Imoto


Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
179 KB
Volume
63
Category
Article
ISSN
0009-2614

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✦ Synopsis


maxima at 135 and 142 L on the magnetic susceptxb&t> -tempemture curw, respectively+ Accurding to the Heisenbers model 2Jek Is obtained to be -94 and -99 cm-l, respectivelel). While magnetic exchange interaction in transition metal complexes has been extensively studied, uranium complex with such an exchange interaction has not yet been found in spite of much interest of chemists wncerning with actinide complexes_ Structures of tetrahis (diethy~mido) uranhrm (IV), U fN(C2Hs)2] 4, and tris [bis~~'-dimethy~ethylenediamido)l uranium (IV),


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The reaction of copper (II) acetate with the tetradentate Schiff base like ligand H 4 L {(E,E)-[{diethyl 2,2Ј-[4,5-dihydroxy-1,2phenylenebis(iminomethylidyne)]bis(3-oxobutanoate)}] leads to the formation of the square planar N 2 O 2 coordinated complex [H 2 CuL]. Reaction of two equivalents of this