Nalazite se na CroRIS probnoj okolini. Ovdje evidentirani podaci neće biti pohranjeni u Informacijskom sustavu znanosti RH. Ako je ovo greška, CroRIS produkcijskoj okolini moguće je pristupi putem poveznice www.croris.hr
izvor podataka: crosbi

Conformational adaptations of acyclic receptor templated by weakly coordinating anions (CROSBI ID 217664)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Đilović, Ivica ; Užarević Krunoslav Conformational adaptations of acyclic receptor templated by weakly coordinating anions // Crystengcomm, 17 (2015), 3153-3161. doi: 10.1039/C4CE02413C

Podaci o odgovornosti

Đilović, Ivica ; Užarević Krunoslav

engleski

Conformational adaptations of acyclic receptor templated by weakly coordinating anions

Crystallization from methanol solutions resulted in new supramolecular complexes of a flexible polyamine receptor N, N′-3-azapentane-1, 5-bisij3-IJ1-aminoethylidene)-6-methyl-3H-pyran-2, 4-dione] (L) with spherical (Br− and I−), linear (SCN−) or pyramidal (ClO3−) anions. The recognition and self-assembly processes yielded five solids: solvated (1a) and non-solvated (1b) forms of HL : SCN− complex with quite different receptor conformations, a supramolecular complex with ClO3− anion (3), which is isoskeletal to 1b, and HL : Br− (2) and HL : I− complexes which are isoskeletal to 1a. It is shown that the rich coordinating potential of the anions investigated arises not only from their geometry but also from their ambivalent accepting functionalities. The divergence in the way binding occurs is reflected on supramolecular synthons stabilizing crystal structures as well as on the physicochemical properties of the obtained solids. In these systems, anion binding could be interpreted as a competition between two “solvation spheres”, one provided by the solvent molecules and the other dominated by high-order supramolecular receptors built from HL molecules. This behaviour is related to previously reported complexes of HL with trigonal, tetrahedral and octahedral anions, emphasizing the receptor's conformational adaptability for providing the most favourable surrounding for guest inclusion in the rigid environment of a crystal.

anion receptor; flexible receptor; weakly coordinating anions; X-ray crystallography

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

17

2015.

3153-3161

objavljeno

1466-8033

10.1039/C4CE02413C

Povezanost rada

Kemija

Poveznice
Indeksiranost