Naslov
Anion directed self-assembly of a flexible ligand into highly porous and symmetrical organic solids

Autori
Đilović, Ivica ; Užarević, Krunoslav ; Matković- Čalogović, Dubravka ; Cindrić, Marina

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

Izvornik
XXI Congress of the International Union of Crystallography - Book of Abstracts / Fujii, Yasuhiko ; Tsukihara, Tomitake - Osaka, 2008, C406-C407

Skup
XXI Congress of the International Union of Crystallography - Congress and General Assembly

Mjesto i datum
Osaka, Japan, 23.08.2008. - 31.08.2008

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
supramolecular chemistry; template synthesis; anion recognition

Sažetak
It is very hard to imagine modern supramolecular chemistry without principles of anion binding.1 Despite all progress in this field, significant anion binding rate in this type of assembly is hard to achieve due to the properties of anions (e.g. low charge to radius ratio, variable geometry etc.).2 Anion binding is interesting because of its potential applications and roles in many biological systems and industrial processes, such as nuclear waste managment, molecular sensing, transport and recognition etc.3 There is a remaining open question: is it better to create a rigid molecule, complement to specific anion, or to create a simple flexible molecule which can adapt its conformation and respond to the anion demands? 4 Herein we describe a solid-state study of several supramolecular complexes based on a podand containing three potential binding sites, namely, N, N’ -3-azapentane-1, 5-bis[3-(1-aminoethylidene)-6-methyl-3H-pyran-2, 4-dione (L), and anions with various geometries and basicities. Since the assembly is highly anion specific, the occurrence of the complexes in systems with high concentrations of competing anions has been explored. In addition, the role of the solvent in structural stabilization will be also discussed. [1] S. O. Kang, R. A. Begum, K. Bowman-James, Angew. Chem. Int. Ed. 2006, 45, 7882– 7894. [2] P. D. Beer, P. A. Gale, Angew. Chem. Int. Ed. 2001, 40, 486– 516. [3] J. L. Sessler, E. Katayev, G. D. Pantos, Y. A. Ustynyuk, Chem. Commun. 2004, 1276– 1277. [4] J. W. Steed, Chem. Commun. 2006, 2637– 2649.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA