Elena V. Boldyreva
Research and education center “Molecular design and ecologically safe technologies” (REC-008)”, Novosibirsk State University, Institute of Solid State Chemistry and Mechanochemistry SB RAS, ul. Kutateladze, 18, Novosibirsk, 128, 630128 Russia, e-mail: boldyrev@nsu.ru
Supramolecular chemistry is the chemistry of non-covalent interactions, which are responsible for the structures and properties of various supramolecular systems. Control of intermolecular interactions is important, in particular, for “crystal engineering”, for polymorph prediction and control, for the control of the reactivity of supramolecular systems, for the design of supramolecular devices and biomimetic systems.
The review lecture will give examples of applications of high-pressure spectroscopy and diffraction for solving fundamental and applied problems of supramolecular chemistry.
Different effects of pressure on supramolecular systems will be discussed: changes in the intermolecular distances and/or in the mutual orientation of molecules in a supramolecular assembly due to the distortion of intermolecular bonds (e.g. – hydrogen bonds); changes in the conformations of molecules, distortion of intramolecular bond lengths and angles; redistribution of the electron density in the molecules and between the molecules, including the valence isomerization, tautomeric isomerization, charge transfer, ionization; reversible and non-reversible polymorphic transformations and chemical reactions. The similarities and the differences in the effects of pressure on the molecular crystals of small molecules and on the biopolymers will be discussed.
The work is supported by the grants from RFBR (02-03-33358), Ministry of Education (Integration, Ч0069) and BRHE (REC-008).