Naslov
Synthesis, characterization and catalytic activity of supramolecular metal complexes with chiral monodentate pseudo-peptide ligands

Autori
Kokan, Zoran ; Perić, Berislav ; Kirin, Srećko I.

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
10th European Biological Inorganic Chemistry Conference: Program / - , 2010, PO-125

Skup
10th European Biological Inorganic Chemistry Conference

Mjesto i datum
Solun, Grčka, 22.06.2010. - 26.06.2010

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
monodentatni ligandi; supramolekularna kemija; asimetrična kataliza
(monodentate ligands; supramolecular chemistry; asymmetric catalysis)

Sažetak
In recent years, supramolecular catalysis has overlapped with many areas of synthetic, material and biological chemistry.[1, 2] It has been postulated that a supramolecular catalyst should contain a functional group for the catalysis and a motif for the assembly process via non-covalent interactions, i.e. π–π stacking, hydrogen bonding, electrostatic or van der Waals interactions. Supramolecular catalysis is particularly attractive because it often uses only simple monodentate ligands, easily accessible in a few synthetic steps. In the present work, chiral monodentate pseudo-peptide ligands L1 – L8 were prepared. The phosphorus donor atoms in L1 – L8 can bind transition metals like Rh(I) or Pd(II) with a 2 : 1 ligand to metal stoichiometry. In the resulting supramolecular L2M complexes, the pedant amino acids can form inter-strand hydrogen bonds, while the central aromatic unit can exhibit π–π stacking. Longer amino acid chains in L7 and L8 allow the formation of more inter-strand hydrogen bonds and therefore stronger supramolecular interactions. The prepared metal complexes were characterized by various spectroscopic techniques and tested as catalysts in model enantioselective reactions.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA