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
- Heterometallic complexes,
- Isopropoxide complexes
AbstractConvenient 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.
Citation InformationWilliam J. Evans, Dimitri Giarikos, Michael A. Greci and Joseph W. Ziller. "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 Vol. 2002 Iss. 2 (2002) p. 453 - 456 ISSN: 1434-1948
Available at: http://works.bepress.com/dimitri-giarikos/10/