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Title: 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/

Abstract

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.

Authors:
;
Publication Date:
Research Org.:
Univ. of California, Irvine
OSTI Identifier:
5241111
Resource Type:
Journal Article
Journal Name:
J. Am. Chem. Soc.; (United States)
Additional Journal Information:
Journal Volume: 108:19
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ORGANOMETALLIC COMPOUNDS; CHEMICAL PREPARATION; CRYSTAL STRUCTURE; YTTRIUM COMPLEXES; BOND ANGLE; BOND LENGTHS; EXPERIMENTAL DATA; MONOCRYSTALS; X-RAY DIFFRACTION; COHERENT SCATTERING; COMPLEXES; CRYSTALS; DATA; DIFFRACTION; DIMENSIONS; INFORMATION; LENGTH; NUMERICAL DATA; ORGANIC COMPOUNDS; SCATTERING; SYNTHESIS; TRANSITION ELEMENT COMPLEXES; 400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)

Citation Formats

Evans, W J, and Sollberger, M S. 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/. United States: N. p., 1986. Web. doi:10.1021/ja00279a100.
Evans, W J, & Sollberger, M S. 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/. United States. https://doi.org/10.1021/ja00279a100
Evans, W J, and Sollberger, M S. 1986. "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/". United States. https://doi.org/10.1021/ja00279a100.
@article{osti_5241111,
title = {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/},
author = {Evans, W J and Sollberger, M S},
abstractNote = {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.},
doi = {10.1021/ja00279a100},
url = {https://www.osti.gov/biblio/5241111}, journal = {J. Am. Chem. Soc.; (United States)},
number = ,
volume = 108:19,
place = {United States},
year = {Wed Sep 17 00:00:00 EDT 1986},
month = {Wed Sep 17 00:00:00 EDT 1986}
}