Naslov
Conformational study of dibenzo-30-crown-10 complexes

Autori
Matijašić, Ivanka ; Dapporto, Paolo ; Rossi, Paolo ; Tušek-Božić, Ljerka

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

Izvornik
Book of Abstracts / Kamenar, Boris ; Golić, Ljubo - Zagreb : Pliva, 1999, 15-15

Skup
Eighth Croatian-Slovenian Crystallographic Meeting

Mjesto i datum
Rovinj, Hrvatska, 17.06.1999. - 19.06.1999

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
crystal structure; crown ether complex

Sažetak
Host-guest chemistry of macrocyclic polyethers has a considerably biological relevance as model substances of naturally occurring ionophores for the study of ion-transport processes in cell membranes and investigation of receptor-enzyme interactions. The chemistry of metal-ion macrocyclic complexes and their crystal structures are influenced by a variety of factors, which include the size and ionic character of the cation respectively the flexibility and cavity size of the ring. All these factors must be taken into account when tailoring ligands to recognize particular metal ions. Much effort has centered on understanding the effects of altering the nature of metal or ligand on the stoichiometry and structure of the complexes formed. In the continuation of our systematic investigation on the complexes with different crown ethers, we are focusing here on the crystal and molecular structure of potassium (1) and ammonium hexafluorophosphate complex (2) with dibenzo-30-crown-10 (DB30C10). In both complexes the cation is completely encapsulated by this large crown molecule having a quite similar conformation. The correlation with CSD structures will be made using polar maps.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA