Three‐in‐One Crystal: The Coordination Diversity of Zinc Polypyridine Complexes. Issue 43 (22nd November 2017)

• Record Type: Journal Article
• Authors: Otto, Sven; Moll, Johannes; Förster, Christoph; Geißler, Daniel; Wang, Cui; Resch‐Genger, Ute; Heinze, Katja
• Is Part Of: European journal of inorganic chemistry. Issue 43(2017)
• Page Start: 5033
• Page End: 5040
• Publication Date: 2017-11-22
• Subjects: Luminescence -- Photophysics -- N ligands -- Tridentate ligands -- Zinc; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201700948
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : The syntheses, structures, and photophysical properties of two new zinc(II) complexes bearing the tridentate N, N′ ‐dimethyl‐ N, N′ ‐dipyridin‐2‐ylpyridine‐2, 6‐diamine (ddpd) ligand are presented. Structural investigations through single‐crystal X‐ray diffractometry, NMR spectroscopy, and density functional theory calculations revealed a diverse coordination behavior that depends on the counterion. Spectroscopic (UV/Vis and emission spectroscopy) and theoretical techniques (DFT and time‐dependent DFT calculations) were employed to explore the photophysical properties of the complexes. Abstract : The flexibility of the zinc coordination geometry and the adaptable tridentate ligand N, N′ ‐dimethyl‐ N, N′ ‐dipyridin‐2‐ylpyridine‐2, 6‐diamine (ddpd) enable the coexistence of multiple coordination polyhedra in solution and in the solid phase depending on the counterion. The structures, redox chemistry, and photophysics of [Zn(ddpd)2 ] 2+, ZnCl2 (ddpd), and (ZnCl4 ) 2– are explored.