Pawel B. Wisniowski, Ph.D
Senior Researcher (now),
Department of Radiation Chemistry and Technology,
Institute of Nuclear Chemistry and Technology, Warsaw, Poland

Me .. and nice fish

Area of interests focuses on radiation effects in aqueous media, with particular emphasis on the identities and molecular structure of short-lived transients and reaction mechanisms in sulfur-containing compounds. Topic involves application of radiation methods for the study of OH-induced oxidation of sulfur-containing alcohols, carboxylic acids, amino acids and their derivatives. It is concerned with the characterization and quantification of reactive intermediates, such as hydroxysulfuranyl radicals, radicals and radical cations with various 2-center/3-electron bonds, reaction kinetics and the measurement of absolute rate constants for elementary processes involving these reactive intermediates, such as intramolecular proton and electron transfer, beta-fragmentation, decarboxylation, and reaction with molecular oxygen. The sulfur intermediates can undergo a variety of subsequent reactions depending on conformational flexibility of molecules and functional neighboring groups present in molecules. Part of these studies is done in collaboration with Dr. G. L. Hug (Radiation Laboratory, USA) doing both the the laser flash photolysis and time resolved and steady-state ESR, and Professor B. Marciniak (A. Mickiewicz University, Poznan) doing steady-state photolysis.

The second major area of interests is connected with using computers skills and programming (Delphi) in chemistry what is now the most important because the PulseLab is currently upgrading electron linear accelerator pulse radiolysis system with optical detection and developing a new laser flash photolysis setup. Construction of pulse radiolysis provides an opportunity to delve more deeply into instrumentation and excellent cooperation with Dr. Jacek H. Mirkowski (Warsaw University of Technology / Institute of Nuclear Chemistry and Technology, Warsaw) gives fair promise for long distance and succesful research.