Synthesis and Characterization of Group 4 Organometal Oxide Complexes

The organometallic substituted Keggin polyoxoanions ($\eta\sp5$-C$\sb5$(CH$\sb3$)$\sb5$) MPW$\sb $O$\sb{39}$((n-C$\sb4$H$\sb9$)$\sb4$N) $\sb4$, M = Ti(1), Zr(2), or Hf(3), were prepared by reaction of ($\eta\sp5$-C$\sb5$(CH$\sb3$)$\sb5$) MCl$\sb3$ with the lacunary Keggin heteropolyanion α-H$\sb3$PW$\sb $O$\sb{39}$((n-C$\sb4$H$\sb9$)$\sb4$N) $\sb4$. Infrared data indicated that complexes 2 and 3 have a normal Keggin structure however complex 1 has a distorted structure. The $\sp{183}$W NMR chemical shift of the resonances due to both tungsten atoms adjacent to the substituted site moved to higher frequency when the metal was changed from titanium to zirconium and to hafnium.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Chemistry

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Babcock, Laura Mae

Contributors dc:contributor

• Klemperer, Walter G.

• Chemistry, Inorganic

Identifier

(UMI)AAI8908615

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/72265