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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

Perić, Berislav ; Zoran, Kokan ; Kirin, Srećko I. Induction of Λ-helicity in a zinc com­plex with an alanine-appended amino­pyridine ligand // Acta crystallographica. Section C, Structural chemistry, C77 (2021), 449-457. doi: 10.1107/S2053229621006471

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

Povezanost rada

Kemija

Poveznice
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