In:
New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 46, No. 46 ( 2022), p. 22451-22458
Abstract:
An imidazole-substituted nitronyl nitroxide radical NIT-Ph-3-(1-Im) was coordinated with Ln(hfac) 3 ·2H 2 O to obtain five new one-dimensional lanthanide-nitronyl nitroxide radical complexes [Ln(hfac) 3 (NIT-Ph-3-(1-Im))] n (Ln = Gd 1, Tb 2, Dy 3, Ho 4, Yb 5; hfac = hexafluoroacetylacetonate; NIT-Ph-3-(1-Im) = 2-(3-(1-imidazole))-phenyl-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxide). The functionalized radical ligand NIT-Ph-3-(1-Im) acts as a bridge ligand to link two Ln( iii ) ions through a “head-to-tail” mode, leading to a one-dimensional chain. Variable temperature magnetization shows that the antiferromagnetic interactions dominate in complex 1. Magnetic studies reveal that slow magnetization relaxations occur in complexes 2 and 3. Furthermore, complex 2 exhibits an excellent application as a luminescence sensor for detecting Fe 3+ cations and Cr 2 O 7 2− anions with high sensitivity and selectivity according to luminescence quenching effects.
Type of Medium:
Online Resource
ISSN:
1144-0546
,
1369-9261
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
1472933-7
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