Investigations of the early stages of titania sol-gel processing

While hydrolysis of Ti(OEt)$\sb4$ yielded a complex mixture of polyoxoethoxide species, hydrolysis of Ti(OPr$\sp{\rm i})\sb4$ at ambient temperature yielded α- (Ti$\sb{11}$O$\sb{13}$) (OPr$\sp{\rm i})\sb{18}$ as the sole product in solution. Reaction of Ti(OPr$\sp{\rm i})\sb4$ with one equivalent of water in isopropanol at 100$\sp\circ$C for 3 days yielded as the sole products a 1:1 mixture of two isomeric complexes, α\sb1- (Ti$\sb{12}$O$\sb{16}$) (OPr$\sp{\rm i})\sb{16}$ and α\sb2- (Ti$\sb{12}$O$\sb{16}$) (OPr$\sp{\rm i})\sb{16}.$ All three of these compounds form a family of stable dodecatitanates which undergo regioselective ligand exchange upon reaction with alcohols.

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

2011

Author dc:creator

• Park, Changwoo

Contributors dc:contributor

• Klemperer, Walter G.

• Chemistry, Inorganic

Statement dc:rights

• Copyright 1993 Park, Changwoo

Language dc:language

eng

Identifier

AAI9411746
(UMI)AAI9411746

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/20860