Objectives
The
main objective of this project is to realize and characterize
self-assembled bidimensional supramolecular structures (SBSS), and also
to modify their architecture in a controlled manner in order to
optimize the photosensibility and/or the molecular recognition
capability.
Specific objectives:
O1
Gold layers deposition on mica and controlled growth of
gold nanoparticles. The design and synthesis of thiophene-phenothiazine
podands and corands.
O2
Structural and physico-chemical characterization of gold
nanoparticles and layers for thiophene-phenothiazine podands and
corands.
O3
Obtaining SBSS with a high organization level, using
complex organic molecules from podands and corands family, and to
characterize them structurally and physico-chemically.
O4
Controlled modification of SBSS, in order to induce and to
optimize the photosensibility and molecular recognition properties.
O5
Research infrastructure development by acquiring new high
performance research equipment.
O6
Results dissemination
The
problems to be solved are:
- To find
out the optimum parameters for gold (111) layers deposited on mica
surface and for the controlled growth of gold nanoparticles;
- To
establish the molecular architecture and the synthesis methods of
podands and corands with thiophene and phenothiazine, and also the most
advantageous methods for their complexation with several functional
groups;
- Theoretical
modelling of molecular structures and evaluation of changes
induced by functional groups attached at different positions;
- To
induce selective functionality to supramolecular structures obtained by
attaching appropriate functional groups;
- To induce selective functionality
to supramolecular structures obtained by attaching appropriate
functional groups
- To investigate and characterize
the supramolecular interactions involved in the design and synthesis of
new supramolecular arhitectures of guest-host type;
- To
prepare self-assembled bidimensional supramolecular structures on gold
surfaces, and/or gold nanoparticles respectively;
- To find
out the physico-chemical, morphological and structural properties of
thin gold layers, gold nanoparticles, podands and corands with
phenothiazine and thiophene, and of the obtained SBSS as well;
- To characterize the effects
induced by functional groups attached to monomers molecular structure
by means of spectrometric methods (RMN, Fourier transform infrared
spectroscopy-FTIR, mass spectrometry;
- To
transform the SBSS by chemical procedures (complexation-decomplexation,
oxygenation-reduction), and by irradiation (photochemical
izomerizations);
- To
establish the correlations between synthesis and self-assembled
characteristic parameters and the properties of the built
supramolecular structures;
- To
achieve and test the lab methods for obtaining SBSS.
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