Brent Toland
James Madison University
Subject Listing - Chemistry
Advisor: Dr. Barbara Reisner
Friday, Poster Session 4, Presentation Kiosk 30 B, Health & Fitness Center
PHASE CHANGES IN NEW LAMELLAR ZINC NITROBENZYL PHOSPHONATES
Phosphonate ligands have been used to coordinate to metal ions in an effort to synthesize metal-organic frameworks. These compounds can form microporous crystalline structures that contain large spaces within the crystalline lattice. Two new zinc nitrobenzylphosponates were synthesized from Zn(NO3)2 • 6H20 and diethyl(4-nitro-benzyl)phosphonate by changing the reaction temperature. The product is lamellar and the peak corresponding to the interlayer spacing is split; reaction conditions affect the splitting. X-ray powder diffraction, thermogravimetric analysis and differential scanning calorimetry have been used to characterize the materials. Models explaining the splitting of the interlayer peak will be discussed.
Advisor: Dr. Barbara Reisner, Assistant Professor, Chemistry, James Madison University, Harrisonburg, VA