Naslov
Organic and inorganic halogens as HB acceptors in halopyridine complexes of Cu(II)

Autori
Popović, Zora ; Đaković, Marijana

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

Izvornik
XXII Congress and General Assembly of the International Union of Crystallography, Madrid, 22-30 August, 2011, Spain, Book of Abstracts, Acta Crystallographica A67 / Gutierrez-Puebla, Enrique ; Martinez-Ripoll ; Martin - Madrid : IUCr, 2011, C667-C667

Skup
XXII Congress and General Assembly of the International Union of Crystallography

Mjesto i datum
Madrid, Španjolska, 22.08.2011. - 30.08.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Cu(II) complexes ; weak H-bonds ; supramolecular synthons

Sažetak
Although interactions involving halogen acceptors have been reported from the early years of hydrogen bonding (HB) research, the primary attention was paid on the oxygen and nitrogen acceptors. Furthermore, due to large partial negative charges in their complexes, fluorine and chlorine are more frequently observed as HB acceptors than less electronegative heavier halogens, e.g. bromine and iodine. The information retrieved from X-ray studies on hydrogen bonding are geometry details of the D—H...A—Y moiety. While the linear D—H...A angles are statistically favoured over bent ones, the preference for the bent angles at accepting halogen atoms originates in the highly anisotropic electron density around the halogen nucleus known as 'polar flattening'.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA