New complexes of 2-(4-pyridyl)-1, 3-benzothiazole with metal ions; synthesis, structural and spectral studies. (1st July 2018)

• Record Type: Journal Article
• Authors: Kurzajewska, Małgorzata; Kwiatek, Dorota; Kubicki, Maciej; Brzezinski, Bogumił; Hnatejko, Zbigniew
• Is Part Of: Polyhedron. Volume 148(2018)
• Page Start: 1
• Page End: 8
• Publication Date: 2018-07-01
• Subjects: Complexes -- Coordination modes -- 2-(4-Pyridyl)-1, 3-benzothiazole ligand -- FT-IR and luminescence spectroscopy -- X-ray structures; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2018.03.024
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: New complexes of Co(II), UO2 (II), Sm(III), Eu(III) and Zn(II) ions with the (2-(4-pyridyl)-1, 3-benzothiazole ( p -PBT) and (2-(4-pyridyl)-1, 3-benzothiazole N-oxide (N-O p -PBT) as the primary ligands were obtained and characterized by elemental analysis, FT-IR spectroscopy, and four of them by X-ray crystallography. Photoluminescence properties of Sm(III) and Eu(III) complexes were studied. Abstract: Reactions of the metal ions (Co(II), UO2 (II), Sm(III), Eu(III) and Zn(II)) with the (2-(4-pyridyl)-1, 3-benzothiazole ( p -PBT) and (2-(4-pyridyl)-1, 3-benzothiazole N-oxide (N-O p -PBT) ligands lead to new complexes of the following types: [Co( p -PBT)2 (SCN)2 ] (1 ), [Co( p -PBT)2 (dca)2 ](MeOH) (2 ), [( p -PBT)2 Co{(μ-OAc)2 Co( p -PBT)3 }2 ](PF6 )(CH3 OH) (3 ), [UO2 ( p -PBT)(NO3 )2 ] (4 ), [Sm( p -PBT)(Cl)3 (H2 O)2 ]·7H2 O (5 ), [Eu( p -PBT)(bac)3 (H2 O)2 ]·4H2 O (6 ), [Zn( p -PBT)2 (acac)2 ] (7 ), [UO2 ( p -PBT)(acac)2 ] (8 ), [UO2 (N-O p -PBT)(acac)2 ] (9 ). The structures of these complexes were characterized by elemental analysis, FT-IR spectroscopy and for 3, 7, 8, and 9 compounds by X-ray crystallography. The experimental data revealed that the metal ions are coordinated with the co-ligands via the N-, S- and O-donor atoms, whereas the p -PBT ligand coordinates exclusively through its pyridyl nitrogen atom. The photoluminescence properties of samarium and europium complexes were studied.