NSF Org:	CHE Division Of Chemistry
Recipient:	REGENTS OF THE UNIVERSITY OF CALIFORNIA AT RIVERSIDE
Initial Amendment Date:	December 15, 1997
Latest Amendment Date:	February 3, 2000
Award Number:	9714886
Award Instrument:	Continuing Grant
Program Manager:	Francis J. Wodarczyk CHE  Division Of Chemistry MPS  Directorate for Mathematical and Physical Sciences
Start Date:	January 1, 1998
End Date:	November 30, 2001 (Estimated)
Total Intended Award Amount:	$378,200.00
Total Awarded Amount to Date:	$378,200.00
Funds Obligated to Date:	FY 1998 = $165,000.00 FY 1999 = $113,200.00 FY 2000 = $100,000.00
History of Investigator:	Eric Chronister (Principal Investigator) eric.chronister@unlv.edu
Recipient Sponsored Research Office:	University of California-Riverside 200 UNIVERSTY OFC BUILDING RIVERSIDE CA  US  92521-0001 (951)827-5535
Sponsor Congressional District:	39
Primary Place of Performance:	University of California-Riverside 200 UNIVERSTY OFC BUILDING RIVERSIDE CA  US  92521-0001
Primary Place of Performance Congressional District:	39
Unique Entity Identifier (UEI):	MR5QC5FCAVH5
Parent UEI:
NSF Program(s):	STRUCTURE AND REACTIVITY, CENTRAL & EASTERN EUROPE PROGR
Primary Program Source:	app-0100  app-0198  app-0199
Program Reference Code(s):	AMPP, OTHR, 9161, 5973, 0000
Program Element Code(s):	196000, 597900
Award Agency Code:	4900
Fund Agency Code:	4900
Assistance Listing Number(s):	47.049

ABSTRACT

In this project supported by the Experimental Physical Chemistry Program of the Chemistry Division, Chronister will combine high-pressure diamond anvil techniques and ultrafast nonlinear coherent spectroscopic methods as a high-resolution probe of molecular solids. Infrared and visible photon echo experiments will be conducted on mixed molecular solids and amorphous glasses in order to elucidate the dynamical processes taking place in condensed phases. The proposed experiments will examine electronic and vibronic dynamics in inhomogeneously broadened solids as a function of temperature and density and will be used to refine theories of optical and vibrational dephasing in amorphous and mixed crystalline solids. High pressure applied to materials provides a way of altering the interactions between molecules in a solid in a continuously controlled manner. This allows for the systematic study of the attractive and repulsive forces that exist on an atomic level. Chronister will measure the behavior of solids under high pressure and low temperature conditions. The information gathered is difficult to obtain because the pressures involved are extremely high and temperatures are very low. However, these data will ultimately aid our understanding of the dynamic interactions between species in solid solution and their host materials. The sorts of studies undertaken here also reveal much about the behavior of materials under extreme conditions.

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