Optical properties of binuclear zinc (II) macrocyclic complexes derived from 4-methyl-2,6-diformylphenol and 1,2-diaminobenzene

Verónica Paredes-García, D. Venegas-Yazigi, A. Cabrera, P. Valencia-Gálvez, M. Arriagada, D. Ruiz-Leon, N. Pizarro, A. Zanocco, Evgenia Spodine

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

In this work, we present the synthesis and optical study of the binuclear zinc(II) macrocyclic complexes, derived from 4-methyl-2,6-diformylphenol and 1,2-diaminobenzene (H2L). Two zinc macrocyclic complexes with different anions were prepared and characterized: [Zn2LCl2]·H2O (1) and [Zn2L](NO3)2 (2). The complexes are emissive, both in the solid state and in solution at room temperature. Spectroscopic properties of the macrocyclic complexes were investigated using stationary and time resolved methods in solutions of dimethylsulfoxide (DMSO), and in solid state. DMSO solutions show two emission bands centered at 480 and 521 nm for complex (1), and at 527 nm with a shoulder at 480 nm for (2). The emission spectra of these compounds in solid state show a red shifted band, presenting the maxima at 565 nm for (1) and 575 nm for (2). The emission lifetimes for these compounds are very short, viz. 650 and 480 ps for macrocycles (1) and (2), respectively.

Original languageEnglish
Pages (from-to)2335-2340
Number of pages6
JournalPolyhedron
Volume28
Issue number12
DOIs
Publication statusPublished - 5 Aug 2009

Keywords

  • Optical properties
  • Zinc macrocyclic complexes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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