Award Abstract # 0137627
Studies of Ionic Pericyclic Reactions in the Gas Phase

NSF Org: CHE
Division Of Chemistry
Recipient: PURDUE UNIVERSITY
Initial Amendment Date: February 11, 2002
Latest Amendment Date: February 11, 2002
Award Number: 0137627
Award Instrument: Standard Grant
Program Manager: Tyrone Mitchell
CHE
 Division Of Chemistry
MPS
 Directorate for Mathematical and Physical Sciences
Start Date: June 1, 2002
End Date: August 31, 2005 (Estimated)
Total Intended Award Amount: $270,000.00
Total Awarded Amount to Date: $270,000.00
Funds Obligated to Date: FY 2002 = $270,000.00
History of Investigator:
  • Paul Wenthold (Principal Investigator)
Recipient Sponsored Research Office: Purdue University
2550 NORTHWESTERN AVE # 1100
WEST LAFAYETTE
IN  US  47906-1332
(765)494-1055
Sponsor Congressional District: 04
Primary Place of Performance: Purdue University
2550 NORTHWESTERN AVE # 1100
WEST LAFAYETTE
IN  US  47906-1332
Primary Place of Performance
Congressional District:
04
Unique Entity Identifier (UEI): YRXVL4JYCEF5
Parent UEI: YRXVL4JYCEF5
NSF Program(s): UNIMOLECULAR PROCESSES
Primary Program Source: app-0102 
Program Reference Code(s): 0000, OTHR
Program Element Code(s): 194200
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.049

ABSTRACT

With the support of the Organic Dynamics Program in the Chemistry Division, Professor Paul Wenthold, of the Department of Chemistry at Purdue University, will investigate pericyclic reactions of ions using flowing afterglow/photoelectron spectroscopy. Among the reactions examined are radical cationic and radical anionic Cope and Diels-Alder reactions. The goal of the work will be to determine the products of the reaction, the mechanism by which they are formed, and the catalytic role of ionization. Solvated ions will be used to probe the role of solvent in determining reaction products. The proposal outlines an extensive program of experimentation to characterize the structure and reactivities of various ion radicals and related novel species, using the specialized capabilities of advanced flowing afterglow instrumentation and a negative ion photoelectron spectrometer now under construction at Purdue. While theory-based calculations will play a role, the main emphasis is clearly on defining structures and patterns of reactivity experimentally. The proposal rests on the curiosity of a mechanistically concerned physical organic chemist fully equipped with the more specialized technical repertoire of an experienced gas-phase ion chemist. Much new information and non-trivial conceptual advances should be gained.

Professor Paul Wenthold, of the Department of Chemistry at the Purdue University, with the support of the Organic Dynamics Program, will also continue to train students who will become an integral part of the research and publications resulting from the work. The research results will provide a fresh understanding of novel structures and chemical transformations while demonstrating new applications of emerging technical/instrumental capabilities.

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