Modification of Metal Surfaces by Optically Active [7]Helicene Derivatives for Molecular Sensing.

0497001 - ÚCHP 2019 CZ eng C - Konferenční příspěvek (zahraniční konf.)
Walaská, Hana - Kalachyova, Y. - Elashnikov, R. - Storch, Jan - Žádný, Jaroslav - Lyutakov, O.
Modification of Metal Surfaces by Optically Active [7]Helicene Derivatives for Molecular Sensing.
Book of Abstracts. Louvain-la-Neuve: Université catholique de Louvain, 2018 - (Gaigneux, E.), s. 85, č. článku P 7143. ISBN N.
[Advances in Organic, Bioorganic and Pharmaceutical Chemistry LIBLICE 2018 /53./. Lázně Bělohrad (CZ), 02.11.2018-04.11.2018]
Grant CEP: GA MPO FV10082
Institucionální podpora: RVO:67985858
Klíčová slova: helicene * molecular sensor * spectrometry
Obor OECD: Organic chemistry

New derivatives of 9-(pyridylethynyl)[7]helicenes were firstly prepared and fully characterized in this study. Consequently, they were successfully separated to their (P)- and (M)-enantiomers using a preparative HPLC with chiral stationary phase. These optical antipodes were advantageously used for modification of silver plasmon active nanogratings suitable for a SERS-based detection of (bio)molecules. Properties of such nanostructures were studied using different spectro- and microscopic techniques. As proved by UV-Vis spectrometry, a change of plasmon resonance wavelength position and intensity was observed and indicated the appearance of chiral surface plasmon polarization.
Trvalý link: http://hdl.handle.net/11104/0289613