Naslov
Design and complexations of bis-porphyrin system aimed for light-harvesting devices

Autori
Margetić, Davor ; Warrener, Ron N. ; Officer, David ; Butler, Doug N. ; Dong, Zemin ; Merican, Zul ; Hesheng, Tom ; Gunter, Max J.

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

Izvornik
Book of abstracts / - Tokyo : The chemical society of Japan, 2007

Skup
Novel  -systems, Novel properties, Pre-symposium of the 12th international symposium on novel aromatic compounds (ISNA-12)

Mjesto i datum
Tokyo, Japan, 21.07.2007

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
supramolecular chemistry

Sažetak
An AM1 computational study of a series of space separated bis-porphyrin “ molecular tweezers” 1 aimed for the preparation of light-harvesting devices has been conducted.It was found that bis-porphyrin systems possessing polycyclic spacers are significantly less rigid than previously thought.[3, 4] Variation of the metal-metal separation distance does not cause a significant energy change thus enabling these molecules to easily adjust to the optimal bonding distance required for complexation of various pyridyl ligands. Binding energies for a series of guests were estimated and indicated that the preferred complexation occurs within the cavity of these molecular tweezers (selective binding). With a help of molecular design, bis-porphyrin, having a more flexible framework incorporating two “ molecular hinges” was synthetised. Its complexation with several bis-pyridyl guests was studied by NMR and UV spectroscopy

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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