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Synthesis and x-ray crystal structure of a soluble pentametallic organoyttrium alkoxide oxide complex, (C/sub 5/H/sub 5/)/sub 5/Y/sub 5/(. mu. -OCH/sub 3/)/sub 4/(. mu. /sub 3/-OCH/sub 3/)/sub 4/(. mu. /sub 5/-O)/sup 1/

Journal Article · · J. Am. Chem. Soc.; (United States)
DOI:https://doi.org/10.1021/ja00279a100· OSTI ID:5241111
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As part of a general program to make oxygen-stabilized organoyttrium and organolanthanide complexes, they have examined synthetic routes to the simple prototypical organometallic alkoxide complex dicyclopentadienylyttrium methoxide (1). Although 1 can be produced in the reaction of ((C/sub 5/H/sub 5/)/sub 28/..mu..-H)(THF))/sub 2/ with CH/sub 3/OH or CH/sub 2/O, the potentially more direct synthesis from (C/sub 5/H/sub 5/)/sub 2/YCl(THF) and alkali-metal methoxides can take a different course. A remarkable polymetallic oxide complex can be obtained whose synthesis and structure may have important implications in organometallic oxide/alkoxide chemistry. (C/sub 5/H/sub 5/)/sub 2/YCl(THF) reacts with desolvated KOCH/sub 3/ in THF overnight at 30/sup 0/C to form a mixture of products containing some dicyclopentadienylyttrium methoxide. By use of the solvate KOCH/sub 3/ x CH/sub 3/OH, complex 1 can also be obtained from (C/sub 5/-H/sub 5/)/sub 2/YCl(THF) at -78/sup 0/C, but when the reaction is run at 30/sup 0/C for a 2-day period, the formation of complex 1 is not observed. Instead, a complex, 2, which is a minor component at low temperature, is obtained as the predominant product. 2 can be isolated in 60-70% yield by removing THF from the reaction mixture and extracting with toluene.
Research Organization:
Univ. of California, Irvine
OSTI ID:
5241111
Journal Information:
J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 108:19; ISSN JACSA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
BOND ANGLE
BOND LENGTHS
CHEMICAL PREPARATION
COHERENT SCATTERING
COMPLEXES
CRYSTAL STRUCTURE
CRYSTALS
DATA
DIFFRACTION
DIMENSIONS
EXPERIMENTAL DATA
INFORMATION
LENGTH
MONOCRYSTALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
SCATTERING
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
X-RAY DIFFRACTION
YTTRIUM COMPLEXES