Direct Synthesis of Heterometallic Europium/Barium Complexes: H2[Eu2Ba6O2(OiPr)16(THF)4] and EuBa2(OC6H4Me-4)7(diglyme)2(DME)

Authors

William J. Evans, University of California, Irvine
Dimitri Giarikos, University of California, IrvineFollow
Michael A. Greci, University of California, Irvine
Joseph W. Ziller, University of California, Irvine

Document Type

Article

Publication Title

European Journal of Inorganic Chemistry

ISSN

1434-1948

Publication Date

2-2002

Keywords

Europium, Barium, Heterometallic complexes, Isopropoxide complexes

Abstract

Convenient syntheses of mixed-metal Eu/Ba complexes starting from the elemental metals have been explored. A mixture of europium and barium ingots reacts in boiling 2-propanol to form a product which crystallizes from THF as the heterometallic complex formulated as H₂[Eu₂Ba₆O₂(OiPr)₁₆(THF)₄] (1). An analogous reaction in the presence of p-cresol (HOC₆H₄Me-4) forms trimetallic EuBa₂(OC₆H₄Me₄)₇(diglyme)₂(DME) (2), after recrystallization from THF/DME/diglyme (DME = 1,2-dimethoxyethane). Complex 1exhibits an octametallic geometry comprised of two square pyramids with coplanar bases which share a basal edge and have apices on opposite sides. The six barium atoms occupy the basal positions and the two europium atoms are at the apices. Complex 2 exhibits a triangular arrangement of metal atoms with both terminal and bridging aryloxide ligands coordinated to the europium atom and bridging aryloxide and terminal ether ligands coordinated to the barium atoms.

DOI

10.1002/1099-0682(20022)2002:2<453::AID-EJIC453>3.0.CO;2-4

Volume

2002

Issue

2

First Page

453

Last Page

456

Comments

©WILEY-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002

NSUWorks Citation

Evans, W. J., Giarikos, D., Greci, M. A., & Ziller, J. W. (2002). Direct Synthesis of Heterometallic Europium/Barium Complexes: H2[Eu2Ba6O2(OiPr)16(THF)4] and EuBa2(OC6H4Me-4)7(diglyme)2(DME). European Journal of Inorganic Chemistry, 2002, (2), 453 - 456. https://doi.org/10.1002/1099-0682(20022)2002:2<453::AID-EJIC453>3.0.CO;2-4. Retrieved from https://nsuworks.nova.edu/cnso_chemphys_facarticles/61