Induction of Λ-helicity in a zinc complex with an alanine-appended aminopyridine ligand (CROSBI ID 297190)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Perić, Berislav ; Zoran, Kokan ; Kirin, Srećko I.
engleski
Induction of Λ-helicity in a zinc complex with an alanine-appended aminopyridine ligand
The crystal structure of tris[dimethyl 5-({; ; ; 1- [(pyridin-2-yl-κN)carbamoyl-κO]ethyl}; ; ; carbamo yl)benzene-1, 3-dicarboxylate]zinc(II) dinitrate acetonitrile trisolvate, [Zn(C19H19N3O6)3] (NO3)2·3CH3CN or [Zn(L)3](NO3)2·3CH3CN, (1), has been determined by single-crystal X-ray diffraction. The neutral ligand L coordinates to the Zn2+ cation in a bidentate fashion via the pyridine N atom and an amide O atom, forming a six-membered chelate ring. The Λ-helical chirality of the Zn2+ coordination sphere is induced by pendant L-alanine residues through stacking interactions between the arene groups of two coordinated ligands, assisted by a hydrogen bond between amide groups bonded to the stacked arene rings. The third ligand is coordinated to the Zn2+ cation by the same six-membered chelate ring, but in the opposite direction with respect to the analogous chelate rings of the first two coordinated ligands. Besides ionic interactions between [ZnL3]2+ complexes and NO3− anions, several types of hydrogen bonds and inter molecular stacking interactions contribute to the stability of the solid-state phase.
alanine ; aminopyridine ; supramolecular chirality ; zinc complex ; crystal structure ; amino acid
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Podaci o izdanju
C77
2021.
449-457
objavljeno
2053-2296
10.1107/S2053229621006471