Self-assembly of luminescent 12-metal Zn–Ln planar nanoclusters with sensing properties towards nitro explosives

Abstract

Two types of Zn–Ln nanoclusters (Ln = Nd and Sm) were constructed using one long Schiff base ligand with a naphthyl backbone, and the 12-metal Zn–Sm cluster shows interesting visible and NIR luminescence sensing of nitro explosives with high sensitivity to 1,4-DNB and TNT at the ppb level.

Preparation and characterization of a gadolinium compound with high thermal stability

“…Lanthanide compounds are well-known photoluminescence materials, because most of the lanthanide elements have abundant 4f electrons. Up to date, a large number of lanthanide compounds possessing interesting photoluminescence behavior have been reported [23][24][25]. The title compound is expected to show photoluminescence performance, so, we measured the photoluminescence spectra using solid state sample and the result of the photoluminescence experiment is given in Figure 3.…”

Construction of a Nano‐rectangular Zn(II)‐Yb(III) Complex with Near‐Infrared Luminescent Response towards Metal Ions

“…[ 20,21 ] In our previous study, a series of “multi‐decker” lanthanide complexes were constructed from salen type Schiff base ligand bis(3‐methoxysalicylidene)‐ethylene‐ 1,2‐phenylenediamine (H 2 L, Scheme 1), in which Ln(III) ions are sandwiched between alternating layers of the Schiff‐base ligands. [ 22,23 ] As part of our current research interests in the luminescent response of d‐4f complexes towards various analytes, [ 24,25 ] we report here the construction and NIR luminescence properties of a 6‐metal Zn‐Yb complex [Zn 2 Yb 4 L 2 (OAc) 10 (OH) 2 (CH 3 OH) 2 ] ( 1 )…”

One Nanoscale Zn(II)-Nd(III) Complex With Schiff Base Ligand: NIR Luminescent Sensing of Anions and Nitro Explosives

“…Thus, many efforts have been made to design fluorescent sensors for phosphates (Yang et al, 2015;Sedaghat et al, 2019) and nitro explosives (Nagarkar et al, 2014;Liu et al, 2017). Our current research interests are in the design of lanthanidebased complexes with luminescent response to various ions and explosives (Jiang et al, 2018;Shi et al, 2019;Liu et al, 2020). Thus, we report here the synthesis and NIR luminescence properties of a Zn-Nd complex [Zn 2 Nd 4 L 2 (OAc) 10 (OH) 2 (CH 3 OH) 2 ] (1) with Schiff base ligand bis(3-methoxysalicylidene)ethylene-1,2-phenylenediamine (H 2 L, Scheme 1).…”