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π-Stacking of quinoid rings in crystals of alkali diaqua hydrogen chloranilates (CROSBI ID 147805)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Molčanov, Krešimir ; Kojić-Prodić, Biserka ; Meden, Anton π-Stacking of quinoid rings in crystals of alkali diaqua hydrogen chloranilates // Crystengcomm, 11 (2009), 7; 1407-1415. doi: 10.1039/b821011j

Podaci o odgovornosti

Molčanov, Krešimir ; Kojić-Prodić, Biserka ; Meden, Anton

engleski

π-Stacking of quinoid rings in crystals of alkali diaqua hydrogen chloranilates

The alkali diaqua complexes of hydrogen chloranilic acid of [KHCA(H2O)2], [RbHCA(H2O)2] and [CsHCA(H2O)2], and the salt of NH4HCA·2H2O were prepared and their crystal structures determined. The homologues of lithium and sodium are not stable, but their analogues [LiHCAEtOH] and [Na5HCA(CA)2(H2O)10] were obtained. All crystal structures studied, with exception of [LiHCAEtOH], reveal 3D-hydrogen bond networks with pronounced π⋯π interactions between anions supported by attractive polar interactions ; the shortest separation distance between the centroids [3.229(2) Å] of the hydrogen chloranilate rings in a face-to-face stack is observed in the structure of [KHCA(H2O)2]. The analysis presented is focused on noncovalent interactions, in particular, the influence of cations and hydrogen bonds on the π-stacking of quinoid rings.

π • • • π interactions ; dipolar interactions ; hydrogen bonds ; hydrogenchloranilates ; stacking

Rad je dostupan na internetu od 25. ožujka 2009.

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Podaci o izdanju

11 (7)

2009.

1407-1415

objavljeno

1466-8033

10.1039/b821011j

Povezanost rada

Kemija

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