ISSN:
0044-2313
Keywords:
Organolanthanide compounds
;
lanthanum
;
samarium
;
lutetium
;
1,4-diaryl-buta-1,3-diene complexes
;
metallacyclopent-3-enes
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Contributions to Organolanthanide Chemistry. III. Synthesis and Properties of 1,4-Diaryl-1,3-butadiene Lanthanide ComplexesCyclopentadienyllanthanide halides react with 1,4-diarylbutadienes in the presence of alkali metals to give Cp*La(1,4-Ph2C4H4) · DME (I), Cp*La(1,4-{o-CH3O—C6H4}2 · C4H4) · 2DME (II), [Li(THF)3][Sm(1,4-Ph2C4H4)2] (III), [Li(DME)][(1,4-{p-CH3—C6H4}2C4H4)LuCl2] (IV) and [Li(DME)][(1,4-{o-CH3O—C6H4}2C4H4)LuCl2] (V). Samariumtrichloride reacts with 1,4-diphenyl-butadiene and lithium in tetrahydrofurane with formation of [Li(THF)4][Sm(1,4-Ph2C4H4)2] (VI). Reaction of samarium with the p-tolyl derivative in the presence of iodine gives (1,4-{p-CH3—C6H4}2C4H4)SmI · 3THF (VII).The compounds were characterized by elementary analysis, i.r., 1H- and 13C- n.m.r., and EI-MS spectra.
Notes:
Cyclopentadienyllanthanidhalogenide reagieren mit 1,4-Diaryl-butadienen in Gegenwart von Alkalimetallen unter Bildung von Cp*La(1,4-Ph2C4H4) · DME (I), Cp*La(1,4-{o-CH3O—C6H4}2C4H4) · 2DME (II), [Li(THF)3][Sm(1,4-Ph2C4H4)2] (III), [Li(DME)][(1,4-{p-CH3—C6H4}2C4H4)LuCl2] (IV) und [Li(DME)][(1,4-{o-CH3O—C6H4}2C4H4)LuCl2] (V). Samariumtrichlorid reagiert mit 1,4-Diphenylbutadien und Lithium in Tetrahydrofuran zu [Li(THF)4][Sm(1,4-Ph2C4H4)2] (VI), Samarium mit dem p-Tolylderivat in Gegenwart von Iod zu (1,4-{p-CH3—C6H4}2C4H4)SmI · 3THF (VII).Die Verbindungen wurden elementaranalytisch sowie durch ihre 1H-, 13C-NMR-, IR- und EI-MS-Spektren charakterisiert.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19956210806
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