National Institute of Standards and Technology, Acquisition and Assistance Division, Building 301, Room B117, Gaithersburg, MD 20899.

B -- ULTRAFAST LASER SPECTROSCOPIC EXPERIMENTS ON STUDIES OF ''NANOPARTICLE SURFACE, LIQUID AND POLYMER REACTION DYNAMICS SOL 52SBNB5C8630 DUE 033095 POC Elaine Libman (301) 975-6331/CO: Pauline Mallgrave (301) 975-6330 The National Institute of Standards and Technology (NIST) intends to negotiate on a sole-source basis with Dr. Steven M. Arrivo of New York, New York, for the setup, execution and data collection of ultrafast laser spectroscopic experiments on studies of ''Nanoparticle Surface, Liquid and Polymer Reaction Dynamics.'' Transient spectral data from solid-phase polymerization reactions, heterogeneous phase surface oxidation and cyanation reactions as a function of laser energy, temperature, solvent, and other experimental parameters shall be analyzed. These experiments shall be extended to other systems to obtain information on related mechanistic effects. The contractor shall determine reactant dissociation, intermediate reaction rates and intramolecular vibrational energy redistribution rates in these systems as well as identify unknown transient species during reaction. Deliverables shall be twelve monthly reports. All work shall be performed at the NIST site in Gaithersburg, Maryland. The contractor shall have established experimental and theoretical expertise in studying molecular dynamics processes in various material phases including liquids, gas-surface, and solid phases. Contractor shall also demonstrate a complete understanding of picosecond/femtosecond lasers, nonlinear optics, software/hardware development and its implementation for multichannel infrared data acquisition, and the ability to analyze experimentally obtained ultrafast transient spectra. Particular focus areas shall include: Broadband infrared apparatus modification; nanoparticle surface chemistry; polymerization reactions; homogeneous catalytic reactions; and heterogeneous oxidation reactions.--The period of performance shall be one year with a one year option--Numbered Note 22--It is the Government's intent to negotiate with Dr. Steven M. Arrivo, the only responsible source that can satisfy the agency's requirements. (0040)

Loren Data Corp. http://www.ld.com (SYN# 0012 19950210\B-0001.SOL)