NSF Org:	CHE Division Of Chemistry
Recipient:	UNIVERSITY OF FLORIDA
Initial Amendment Date:	April 9, 2002
Latest Amendment Date:	April 2, 2004
Award Number:	0211252
Award Instrument:	Continuing Grant
Program Manager:	Joseph L. Templeton CHE  Division Of Chemistry MPS  Directorate for Mathematical and Physical Sciences
Start Date:	July 1, 2002
End Date:	June 30, 2006 (Estimated)
Total Intended Award Amount:	$345,000.00
Total Awarded Amount to Date:	$369,800.00
Funds Obligated to Date:	FY 2002 = $135,000.00 FY 2003 = $129,800.00 FY 2004 = $105,000.00
History of Investigator:	Kirk Schanze (Principal Investigator) kirk.schanze@utsa.edu
Recipient Sponsored Research Office:	University of Florida 1523 UNION RD RM 207 GAINESVILLE FL  US  32611-1941 (352)392-3516
Sponsor Congressional District:	03
Primary Place of Performance:	University of Florida 1523 UNION RD RM 207 GAINESVILLE FL  US  32611-1941
Primary Place of Performance Congressional District:	03
Unique Entity Identifier (UEI):	NNFQH1JAPEP3
Parent UEI:
NSF Program(s):	PHYSICAL INORGANIC
Primary Program Source:	app-0102  app-0103  app-0104
Program Reference Code(s):	0000, 1968, OTHR
Program Element Code(s):	196800
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.049

ABSTRACT

This award by the Inorganic, Bioinorganic and Organometallic Chemistry program supports research by Professor Kirk S. Schanze of the University of Florida to pursue studies on the "Photophysics of Metal-Organic and Organometallic pi-Conjugated Oligomers". Pi-conjugated polymers and oligomers comprise a new generation of molecular materials with technologically useful optical, electronic, and opto-electronic properties. Research is underway to investigate the excited state properties of mono-disperse pi-conjugated oligomers that contain transition metal chromophores to gain a molecular level understanding of their excited state properties. Objectives include an understanding of how transition metal chromophores modify the excited state properties of the pi-conjugated organic systems and how the pi-conjugated molecules modify the excited state properties of the metal complexes, particularly the properties of the triplet-pi, pi* manifold of the conjugated oligomer. Metal ion complexes involved in metal-to-ligand charge transfer (MLCT) excited states include Ru(II), Os(II) and Rh(III) with alpha-thiophene oligomers that modulate the energy gap between the MLCT and triplet-pi,pi* manifolds in both mono- and polynuclear complexes. The excited state properties of platinum-acetylide oligomers will be examined to provide clear information concerning the spatial extent of the singlet-pi,pi* and triplet-pi,pi* excitons and to understand how inter-chain interactions modify the excited state properties of the pi-conjugated Pt-acetylides.

The photochemistry of pi-conjugated molecules attached to transition metal ions are being investigated as to their basic photophysical properties with applications that include novel electronic light-emitting devices, light-to electrical energy conversion, laser light protection, and plastic electronic circuits.

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