Naslov
Substituent Influence on the Solution State Structure of Iminodiacetamide Complexes with Late Transition Metals

Autori
Pantalon Juraj, Natalija ; Vianello, Robert ; Miletić, Goran ; Perić, Berislav ; Kirin, Srećko I.

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

Izvornik
Book of Abstracts / - Bratislava : Slovak Chemical Society, 2019, 79-79

ISBN
978-80-8208-014-1

Skup
XXVII. International Conference on Coordination and Bioinorganic Chemistry (27th ICCBIC)

Mjesto i datum
Smolenice, Slovačka, 02.06.2019. - 07.06.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
tridentate ligands ; transition metals ; geometrical isomers

Sažetak
Tridentate ligands, such as iminodiacetamide (imda) derivatives and transition metals are known to form complexes of ML and ML2 stoichiometry. In hexacoordinated ML2 complexes, depending on the orientation of the ligands, mer, trans-fac and Δ- or Λ-cis-fac geometrical isomers are possible. Our aim is to study substituent effects on the stereochemistry of imda complexes, as model complexes for catalysts in enantioselective reactions. In the solid state we observed mainly trans-fac isomers, while the cis-fac isomer was obtained only for R, R' = H. In acetonitrile solution, NMR spectroscopy reveled formation of trans-fac isomers at room temperature (R' = iPr) or at 0°C (R' = Bn). The substituent on the central amine nitrogen was also found to influence the N-M bond strength, which was studied with variable temperature NMR. The relative stabilities of the isomers depending on the ligand substituent were determined using DFT calculations.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA