Dissertation/Thesis Abstract

Studies on the structures and properties of bimetallic uranium transition metal and hybrid organic -inorganic compounds
by Yu, Yaqin, Ph.D., Auburn University, 2009, 268; 3386174
Abstract (Summary)

Hydrothermal synthetic methods have been utilized to synthesize many compounds containing both uranium and transition metals, as well as hybrid organic-inorganic materials. These compounds are found to adopt zero-, one-, two- and three-dimensional structural typologies. Of the 22 compounds covered in this dissertation, seven (31.8%) are based upon sheets of polyhedra, two (9.1%) are based upon chains of polyhedra, and three (13.6%) are based upon limited cluster polyhedra. There are ten (45.5%) structures based upon three-dimensional frameworks. Single crystal diffraction experiments reveal that the seven sheet structures contain transition metal cations (Ag+, Co 2+, Mn2+, Cu2+). The ten three-dimensional frameworks contain transition metal substructures (Ag+, Hg 2+, Ni2+, Co2+, Zn2+), metal-organic framework (MOF) structures and porous low-valence uranium framework.

There are two chain structures containing bimetallic metal-organic hybrids and single metal-organic hybrids. Three limited polyhedra structures contain mononuclear and binuclear clusters are also described. All structures were determined through the use of single crystal X-ray diffraction with the aid of EDAX and X-ray powder diffraction analysis. Addition characterization includes Raman spectroscopy, fluorescent spectroscopy, ion-exchange, and thermal stability.

Indexing (document details)
Advisor: Albrecht-Schmitt, Thomas E.
School: Auburn University
School Location: United States -- Alabama
Source: DAI-B 70/12, Dissertation Abstracts International
Subjects: Inorganic chemistry, Polymer chemistry, Nuclear chemistry
Keywords: Bimetallic compounds, Organic-inorganic compounds, Uranium
Publication Number: 3386174
ISBN: 978-1-109-52174-0
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