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  • 文献标题:   Luminescent [Zn(II)Ln(III)] complexes anchored on graphene: Synthesis and crystal structures of [(ZnEuIII)-Eu-II] and [(ZnTbIII)-Tb-II] complexes decorated with pyrene groups
  • 文献类型:   Article, Early Access
  • 作　　者:   APOSTOL AA, MIHALACHE I, MOCANU T, TUTUNARU O, PACHIU C, GAVRILA R, MAXIM C, ANDRUH M
  • 作者关键词:   graphene, europium complexe, luminescence, terbium complexe
  • 出版物名称:   APPLIED ORGANOMETALLIC CHEMISTRY
  • ISSN:   0268-2605 EI 1099-0739
  • 通讯作者地址:   Univ Bucharest
  • 被引频次:   0
  • DOI:   10.1002/aoc.6126 EA DEC 2020
  • 出版年:  

▎ 摘　　要

Two [ZnLn] heterobinuclear complexes decorated with pyrene groups, [ZnEu(valpn)(hfac)(2)(pb)], have been obtained, in order to be deposited on graphene (Ln(III)(sic)Eu-III 2a; Tb-III 2b); H(2)valpn is the Schiff base compartmental ligand resulted from the condensation reaction between o-vanillin and propylenediamine (Hpb = 1-pyrenebutiric acid; Hhfac = hexafluoroacetylacetone). The two complexes have been obtained by replacing the acetato ligand in [ZnEu(valpn)(hfac)(2)(CH3COO)] (Eu-III: 1a; Tb-III: 1b) by pb(-) anions. The crystal structures of 1a, 2a, and 2b have been solved and described. Compounds 2a and 2b were grafted on monolayer graphene/quartz. The new hybrid materials, 2a/graphene and 2b/graphene, as well as the starting complexes are luminescent. The two hybrid materials have been characterized by Raman spectroscopy, atomic force microscopy (AFM), and scanning electron microscopy (SEM) measurements, which confirm the presence of the complexes on graphene.