Title page for ETD etd-090308-093207

Document Type thesis

Author Name Lee, Lisa S

URN etd-090308-093207

Title Design of porous solids from 2-D and 3-D coordination frameworks utilizing imidazolylbenzoic acids and esters

Degree MS

Department Chemistry & Biochemistry

Advisors
John C. MacDonald, Advisor
Kristin K. Wobbe, Department Head

Keywords
metal organic frameworks

Date of Presentation/Defense 2008-08-07

Availability unrestricted

Abstract
The investigation through design and synthesis of metal-organic frameworks was conducted in an effort to create new types of porous crystalline solids. The supramolecular chemistry and crystal structures of six novel frameworks (1-Cd, 2Cd, 1-Cu, 2a-Cu, 2b-Cu, 3-Cu) are reported. We are targeting porous solids composed of the transition metals Cu2+ and Cd2+ with three related families of organic molecules: Ethyl 4-(1H-imidazol-1-yl)benzoate, 4-(1H-benzo[d]imidazol-1-yl)benzoic acid, and Ethyl 4-(2-methyl-1H-imidazol-1-yl)benzoate. These molecular building blocks self assemble via metal coordination into coordination polymers that form a variety of 1-D, 2-D, and 3-D architectures. The networks are comprised of M•••O and M•••N bonds that coordinate into different geometrical arrangements dependent on steric hindrance and the metal ions that are used. The frameworks synthesized display porous behavior using weight measurements that are also seen to be reversible in some cases using atmospheric reuptake of guest molecules from growth solution. The uptake of rhodamine b was examined for the framework 3-Cu.

Files
llee.pdf

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Document Type	thesis
Author Name	Lee, Lisa S
URN	etd-090308-093207
Title	Design of porous solids from 2-D and 3-D coordination frameworks utilizing imidazolylbenzoic acids and esters
Degree	MS
Department	Chemistry & Biochemistry
Advisors	John C. MacDonald, Advisor Kristin K. Wobbe, Department Head
Keywords	metal organic frameworks
Date of Presentation/Defense	2008-08-07
Availability	unrestricted
Abstract The investigation through design and synthesis of metal-organic frameworks was conducted in an effort to create new types of porous crystalline solids. The supramolecular chemistry and crystal structures of six novel frameworks (1-Cd, 2Cd, 1-Cu, 2a-Cu, 2b-Cu, 3-Cu) are reported. We are targeting porous solids composed of the transition metals Cu2+ and Cd2+ with three related families of organic molecules: Ethyl 4-(1H-imidazol-1-yl)benzoate, 4-(1H-benzo[d]imidazol-1-yl)benzoic acid, and Ethyl 4-(2-methyl-1H-imidazol-1-yl)benzoate. These molecular building blocks self assemble via metal coordination into coordination polymers that form a variety of 1-D, 2-D, and 3-D architectures. The networks are comprised of M•••O and M•••N bonds that coordinate into different geometrical arrangements dependent on steric hindrance and the metal ions that are used. The frameworks synthesized display porous behavior using weight measurements that are also seen to be reversible in some cases using atmospheric reuptake of guest molecules from growth solution. The uptake of rhodamine b was examined for the framework 3-Cu.
Files	llee.pdf