NSF Org:	CHE Division Of Chemistry
Recipient:	THE TRUSTEES OF PRINCETON UNIVERSITY
Initial Amendment Date:	April 16, 1987
Latest Amendment Date:	April 8, 1991
Award Number:	8706310
Award Instrument:	Continuing Grant
Program Manager:	E. Kent Barefield CHE  Division Of Chemistry MPS  Directorate for Mathematical and Physical Sciences
Start Date:	April 15, 1987
End Date:	March 31, 1993 (Estimated)
Total Intended Award Amount:	$713,770.00
Total Awarded Amount to Date:	$713,770.00
Funds Obligated to Date:	FY 1987 = $133,611.00 FY 1988 = $130,159.00 FY 1989 = $130,000.00 FY 1990 = $175,000.00 FY 1991 = $145,000.00
History of Investigator:	John Groves (Principal Investigator)
Recipient Sponsored Research Office:	Princeton University 1 NASSAU HALL PRINCETON NJ  US  08544-2001 (609)258-3090
Sponsor Congressional District:	12
Primary Place of Performance:	DATA NOT AVAILABLE
Primary Place of Performance Congressional District:
Unique Entity Identifier (UEI):	NJ1YPQXQG7U5
Parent UEI:
NSF Program(s):	SYNTHETIC INORGANIC
Primary Program Source:
Program Reference Code(s):
Program Element Code(s):	196600
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.049

ABSTRACT

The goals of this research program are to elucidate the mechanisms of metal-catalyzed atom transfer reactions. The general approach is to characterize reactive intermediates in proposed catalytic cycles and to isolate the elementary steps in catalysis. Reaction stereoelectronics and ligand design are used to explore strategies to impose selectivity on these catalytic reactions. Specific goals for the next grant period are: (1) to continue the elaboration of the chemistry of peroxometal and oxometal complexes; (2) to design and prepare catalysts for site-selective, shape-selective and enantioselective molecular recognition and catalytic oxygenation; and (3) to extend the metal nitride and metal imide chemistry which was developed in the previous grant period toward catalysts which activate and transfer nitrogen. Most reactions of other substances with oxygen from the atmosphere are catalyzed by metal ions, present either as constituents of proteins or as trace constituents of water solutions. Better understanding of the mechanisms of metal-catalyzed oxidation reactions is important both for the development of more efficient catalysts for industrial utilization of oxygen and for a deeper understanding of how some important enzymes work. During the previous grant period this research group has synthesized catalysts which are very efficient in causing some organic chemicals to react with oxygen in such a way that only one of several possible products are formed, as well as metal- containing compounds which are models of some enzymes that catalyze biological oxidations.

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