Synthesis and characterization of chiral platinum double salt materials containing terpyridine ligands: Part 2

CHED 1239

Matthew J. Cich, cichm@carleton.edu1, Ryan J Martinez, martinry@carleton.edu1, Yuichiro Takeshita, takeshiy@carleton.edu1, Steven M. Drew, sdrew@carleton.edu1, Ian M. Hill, hilli@carleton.edu1, Andrew J. Young, youngan@carleton.edu1, Aaron D. Lackner1, Kent R. Mann, mann@chem.umn.edu2, Carrie E. Buss2, and Jason R. Burney, burney@chem.umn.edu2. (1) Department of Chemistry, Carleton College, 1 North College Street, Northfield, MN 55057, (2) Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, MN 55455
Platinum (II) extended linear chain (ELC) materials have been shown to be vapochromic and fluorescent. As volatile organic compounds (VOCs) penetrate the crystalline matrix of these materials a change in the wavelength of maximum fluorescence is detected. In R- and S-[Pt(ß-methylphenethylisonitrile)4][Pt(CN)4] double salt, enantantiomeric selectivity was demonstrated between R- and S-2-butanol through differences in fluorescence spectral data. Several [Pt(trpy)(CNR)][Pt(CN)4] and [Pt(ttbtrpy)(CNR)][Pt(CN)4], where CNR is an enantiomerically pure chiral isonitrile, trpy is 2,2':6',2''-terpyridine, and ttbtrpy is 4,4',4''tri-tert-butyl-2,2':2''terpyridine, were synthesized and tested for vapochromic effects. It was found that [Pt(trpy)(CNR)][Pt(CN)4] did not produce vapochromic effects, however, the [Pt(ttbtrpy)(CNR)][Pt(CN)4] double salts demonstrated vapochromic fluorescence changes. Vapochromic data will be presented for R- and S-2-butanol vapor and several achiral solvents.
 

Undergraduate Research Poster Session: Inorganic Chemistry
2:00 PM-4:00 PM, Monday, April 7, 2008 Morial Convention Center -- Hall A, Poster

Division of Chemical Education

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008