Adducts of Zinc(II) Acetylacetonate with Various Aminoquinolines: Synthesis, Structure and Luminescence | Zendy

Chesnokov Vasilii V. | Zendy; Rostovtseva Irina A. | Zendy

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Adducts of Zinc(II) Acetylacetonate with Various Aminoquinolines: Synthesis, Structure and Luminescence

Author(s) -

Chesnokov Vasilii V.,

Rostovtseva Irina A.

Publication year - 2019

Publication title -

chemistryselect

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 34

ISSN - 2365-6549

DOI - 10.1002/slct.201803840

Subject(s) - adduct , zinc , chemistry , luminescence , photoluminescence , solubility , thermal stability , ligand (biochemistry) , lewis acids and bases , elemental analysis , spectroscopy , inorganic chemistry , medicinal chemistry , polymer chemistry , organic chemistry , materials science , catalysis , biochemistry , receptor , physics , optoelectronics , quantum mechanics

New adducts of zinc(II) acetylacetonate of composition [Zn(acac) 2 L] (where L=2‐aminoquinoline, 4‐aminoquinoline, 6‐aminoquinoline, 5‐amino‐4,6‐dimethylquinoline) were obtained and characterized by elemental analysis, IR and 1 H‐NMR. The optical properties of zinc(II) adducts were investigated by UV/Vis and photoluminescence spectroscopy. In these adducts, each zinc(II) ion is coordinated with two acetylacetonate moieties and one aminoquinoline ligand through an endocyclic nitrogen atom. Adducts show thermal stability (m.p.>180 °C), good solubility in non‐polar solvents, but they easily decompose in the presence of Lewis bases. The 4‐aminoquinoline adduct does not luminesce. The emission bands of other compounds in CH 2 Cl 2 solutions are located in the blue region of the spectrum in the range 373–460 nm with quantum yields ϕ = 0.21‐0.40.

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