Photo from archive.org
Abstract Three rigid hexadentate salen-type (H2L) Zn − Er complexes, namely [ErZnL(OAc)3] (1), [ErZn2L2(OAc)2)](PF6)·CH3OH·CH3Cl2 (2) and [Er4Zn2L2(OAc)10(CH3OH)4](PF6)2·2CH3OH·2H2O (3) (H2L = N,N'-bis(2-oxy-3-methoxybenzylidene)-1,2-phenylenediamine), have been isolated by the reactions of H2L with Er(OAc)3·6H2O salts. The introduction… Click to show full abstract
Abstract Three rigid hexadentate salen-type (H2L) Zn − Er complexes, namely [ErZnL(OAc)3] (1), [ErZn2L2(OAc)2)](PF6)·CH3OH·CH3Cl2 (2) and [Er4Zn2L2(OAc)10(CH3OH)4](PF6)2·2CH3OH·2H2O (3) (H2L = N,N'-bis(2-oxy-3-methoxybenzylidene)-1,2-phenylenediamine), have been isolated by the reactions of H2L with Er(OAc)3·6H2O salts. The introduction of the Zn2+ ion resulted in the increase of the molar absorption coefficient and NIR luminescence intensity of the Er3+ ion in the solids. In complexes 2 and 3, the PF6− counterions not only play a role to neutralize overall charge in the solid but also regulate the frameworks. The complexes were structurally characterized by single crystal X-ray crystallographic studies and their NIR luminescence was investigated.
Journal Title: Polyhedron
Year Published: 2020
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!