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Luminescent properties of heterotrinuclear 3d–4f complexes constructed from a naphthalenediol-based acyclic bis(salamo)-type ligand.
- Source :
-
Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy . Sep2017, Vol. 184, p141-150. 10p. - Publication Year :
- 2017
-
Abstract
- Heterotrinuclear 3d–4f complexes with a naphthalenediol-based acyclic bis(salamo)-type ligand have been synthesized and structurally characterized. Spectral titrations clearly show that the heterotrinuclear complexes [Zn 2 (L)La(OAc) 3 ] ( 1 ), [Zn 2 (L)Ce(OAc) 3 ] ( 2 ) and [Zn 2 (L)Dy(OAc) 3 (CH 3 OH)]·CH 2 Cl 2 ( 3 ) are acquired by the substitution reaction of the obtained homotrinuclear Zn(II) complex with 1 equiv. of Ln(NO 3 ) 3 (Ln 3 + = La 3 + , Ce 3 + and Dy 3 + ). Two Zn(II) ions are penta- and hexa-coordinated with geometries of distorted tetragonal pyramid and octahedron. La(III) ion is deca-coordinated, adopting a distorted bicapped square antiprism geometry. Ce(III) ion is nona-coordinated with geometry of distorted capped square antiprism as well as Dy(III) ion. The different coordination modes of acetate ions in complexes 1 , 2 and 3 lead to different coordination numbers of the lanthanide(III) ions. Furthermore, the structures and fluorescence properties have been discussed. [ABSTRACT FROM AUTHOR]
- Subjects :
- *PHOSPHORS
*LIGANDS (Chemistry)
*ZINC
*CESIUM
*SUBSTITUTION reactions
Subjects
Details
- Language :
- English
- ISSN :
- 13861425
- Volume :
- 184
- Database :
- Academic Search Index
- Journal :
- Spectrochimica Acta Part A: Molecular & Biomolecular Spectroscopy
- Publication Type :
- Academic Journal
- Accession number :
- 123408364
- Full Text :
- https://doi.org/10.1016/j.saa.2017.04.061