Crystal Structures, Thermal and Luminescent Properties of Gadolinium(III) Trans-1,4-cyclohexanedicarboxylate Metal-Organic Frameworks

Crystal Structures, Thermal and Luminescent Properties of Gadolinium(III) Trans-1,4-cyclohexanedicarboxylate Metal-Organic Frameworks Full article

Journal

Crystals
ISSN: 2073-4352

Output data

Year: 2021, Volume: 11, Number: 11, Article number : 1375, Pages count : 11 DOI: 10.3390/cryst11111375

Authors

Demakov Pavel A. ¹ , Vasileva Alena A. ^1,2 , Lazarenko Vladimir A. ³ , Ryadun Alexey A. ¹ , Fedin Vladimir P. ¹

Affiliations

1	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
2	Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
3	National Research Centre “Kurchatov Institute”, 123182 Moscow, Russia

Four new gadolinium(III) metal-organic frameworks containing 2,2′-bipyridyl (bpy) or 1,10-phenanthroline (phen) chelate ligands and trans-1,4-cyclohexanedicarboxylate (chdc2−) were synthesized. Their crystal structures were determined by single-crystal X-ray diffraction analysis. All four coordination frameworks are based on the binuclear carboxylate building units. In the compounds [Gd2(bpy)2(chdc)3]·H2O (1) and [Gd2(phen)2(chdc)3]·0.5DMF (2), the six-connected {Ln2(L)2(OOCR)6} blocks form a 3D network with the primitive cubic (pcu) topology. In the compounds [Gd2(NO3)2(phen)2(chdc)2]·2DMF (3) and [Gd2Cl2(phen)2(chdc)2]·0.3DMF·2.2dioxane (4), the four-connected {Ln2(L)2(X)2OOCR)4} units (where X = NO3− for 3 or Cl− for 4) form a 2D square-grid (sql) network. The solid-state luminescent properties were investigated for the synthesized frameworks. Bpy-containing compound 1 shows no luminescence, possibly due to the paramagnetic quenching by Gd3+ cation. In contrast, the phenathroline-containing MOFs 2–4 possess yellow emission under visible excitation (λex = 460 nm) with the tuning of the characteristic wavelength by the coordination environment of the metal center.

Demakov P.A. , Vasileva A.A. , Lazarenko V.A. , Ryadun A.A. , Fedin V.P.
Crystal Structures, Thermal and Luminescent Properties of Gadolinium(III) Trans-1,4-cyclohexanedicarboxylate Metal-Organic Frameworks
Crystals. 2021. V.11. N11. 1375 :1-11. DOI: 10.3390/cryst11111375 WOS Scopus РИНЦ OpenAlex

Submitted:	Oct 27, 2021
Published print:	Nov 11, 2021

Web of science:	WOS:000723431000001
Scopus:	2-s2.0-85119614983
Elibrary:	47533303
OpenAlex:	W3211833681

DB	Citing
Web of science	11
Scopus	10
Elibrary	10
OpenAlex	11