Aggregation of [LnIII12] clusters by the dianion of 3-formylsalicylic acid. Synthesis, crystal structures, magnetic and luminescence properties

Dinca, Alina S.; Mindru, Alexei; Dragancea, Diana; Tiseanu, Carmen; Shova, Sergiu; Cornia, Samuele; Carrella, Luca M.; Rentschler, Eva; Affronte, Marco; Andruh, Marius

doi:10.1039/c8dt04602f

Cited by 19 publications

(24 citation statements)

References 67 publications

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“…Both complexes C1 and C2 had similar twelve coordination modes of Th(IV), which was the highest coordination number in thorium complexes reported so far [9,10]. Adjacent atoms of diacylhydrazone ligand formed three five-membered chelating rings with Th.…”

Section: Resultsmentioning

confidence: 67%

“…Schiff base type complexes have attracted considerable attention due to their accessible synthesis and various properties, such as magnetic, catalysis and sensors, as well as biological activities [1][2][3][4][5][6][7][8]. Acylhydrazone is a Schiff base characterized by rich coordination ability as a ligand [9,10]. Therefore, in this paper, thorium is used as the central ion coordinated with diacylhydrazone ligand (Fig.…”

Section: Introductionmentioning

confidence: 99%

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Solvothermal Syntheses, Crystal Structure, and Properties of Two Th(IV) Complexes Based on Diacylhydrazone Ligand

Tan

Nan²,

Tan

et al. 2021

Russ J Gen Chem

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Two Th(IV) complexes have been synthesized by a "one-pot" method. The complexes have been characterized by IR, NMR and mass spectra, elemental analysis, and single crystal X-ray diffraction. Structural analysis indicates that Th(IV) in both complexes is twelve-coordinated. A one-dimensional infinite chain structure is formed in C1 via π-π stacking of benzene. According to TGA, the complexes are stable below 200°C. UV-Vis and fluorescence spectra of complexes have been recorded. Quantum chemical calculations of the complexes have been carried out.

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Section: Resultsmentioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Solvothermal Syntheses, Crystal Structure, and Properties of Two Th(IV) Complexes Based on Diacylhydrazone Ligand

Tan

Nan²,

Tan

et al. 2021

Russ J Gen Chem

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“…Polynuclear Ln 3+ clusters attract increasing attention, as a result of their intriguing geometrical features and interesting properties related to magnetic, quantum computing and luminescent applications. The reported Ln 3+ clusters mainly include trinuclear (Ln 3 , Ln = Gd, Tb, Dy, Ho), [16,17] tetranuclear (Ln 4 , Ln = La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb), [18][19][20][21][22][23][24][25][26][27] pentanuclear (Ln 5 , Ln = Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb), [25] hexanuclear (Ln 6 , Ln = Pr, Ce, Eu, Gd, Tb, Dy, Er and Y), [27][28][29][30] octagon (Ln 8 , Ln = Gd, Tb, Dy, Ho), [31] nine-nuclear (Ln 9 , Ln = Nd, Sm, Eu, Gd, Tb, Dy, Ho), [32][33][34] eleven-nuclear (Ln 11 , Ln = Gd, Tb, Dy), [35] dodecanuclear (Ln 12 , Ln = Eu, Gd, Tb, Dy), [32,[36][37][38] hexadecanuclear (Ln 16 , Ln = Gd, Dy) clusters. [39] The number of Ln nuclei in Ln 3+ clusters was often controlled by the preferred coordination geometry of ligands [32] and the reaction environments.…”

Section: Cluster Chemistry Of Group 3 and 4 Metalsmentioning

confidence: 99%

“…[39] The number of Ln nuclei in Ln 3+ clusters was often controlled by the preferred coordination geometry of ligands [32] and the reaction environments. [37] [195] Corrole-MOF-1 Zr 6 O 4 (OH) 7 (H 2 O) 3 (CO 2 ) 9 TCPC 3,9-c gfy 2545 [193] MOF-525 Zr 6 O 4 (OH) 4 (CO 2 ) 12 TCPP 4,12-c ftw 1936 [197,198] The largest An(IV)-oxo cluster reported is An 38 complexes including U 38 , [40,41] Pu 38 and Np 38 . [42] By controlling releasing kinetics of water in an esterification process, U 38 clusters can be obtained as a result of hydrolysis.…”

Section: Cluster Chemistry Of Group 3 and 4 Metalsmentioning

confidence: 99%

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Metal–Organic Frameworks Based on Group 3 and 4 Metals

et al. 2020

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Metal-organic frameworks (MOFs), a class of porous crystalline framework materials, are linked by strong bonds between inorganic and organic building blocks. [1-3] In the past two decades, MOFs have rapidly grown as a star material due to their exceptional performance in areas such as storage, separation and catalysis. [4] The outstanding performance of MOFs in applications benefits from their intrinsically porous structures and highly tunable pore environment. [5-7] The creation and modification of pore space with optimized size, functionality and diversity can be precisely tuned at the molecular level by rationally designing building blocks and synthetic procedures. [8,9] The diversity of MOFs can be enriched by expanding the library of organic linkers with varying lengths, geometries, and functional groups. [10] Additionally, very diverse metal cations are applied to MOF synthesis, ranging from monovalent (Ag + , Cu + , etc.), divalent (Mg 2+ , Fe 2+ , Co 2+ , Ni 2+ , etc.), trivalent (Al 3+ , Sc 3+ , V 3+ , Cr 3+ , etc.), to tetravalent (Ti 4+ , Zr 4+ , Hf 4+ , etc.) cations. [11] In this review, we mainly focus on MOFs with group 3 and 4 metals, including Y, lanthanides (Ln, from La to Lu), actinides (An, from Ac to Lr), Ti, and Zr (Figure 1). Group 3 metal cations are generally found in the oxidation state of +3 in the MOF structures, while group 4 metal cations mainly exist in the oxidation state of +4, leading to the formation of much stronger coordination bonds with carboxylates. [12] Therefore, group 4 metal-based MOFs (M IV-MOFs) generally have enhanced stability compared with MOFs constructed from metals of group 3 and other groups. This series of MOFs stands out because the involved metals can generally coordinate with carboxylates to form frameworks with strong coordination bonds, according to the Pearson's hard/soft acid/base principle, where group 3 and 4 metal cations are regarded as hard acids while carboxylate ligands are hard bases. [11] One remarkable feature of MOFs with group 3 and 4 metals is that they generally can form phases containing M 6 O 8 (M = Y, Ln, An, Zr and Hf) clusters, regardless of their atomic numbers, charges and radius. This series of M 6-based MOFs is best represented by UiO series such as UiO-66 with fcu topology. [13] Under different synthetic conditions, UiO-66(M, M = An, Zr and Hf) constructed from [M 6 (μ 3-O) 4 (μ 3-OH) 4 ] clusters and linear carboxylates can be obtained, while UiO-66(M, M = Y, Ln) is assembled from Metal-organic frameworks (MOFs) based on group 3 and 4 metals are considered as the most promising MOFs for varying practical applications including water adsorption, carbon conversion, and biomedical applications. The relatively strong coordination bonds and versatile coordination modes within these MOFs endow the framework with high chemical stability, diverse structures and topologies, and interesting properties and functions. Herein, the significant progress made on this series of MOFs since 2018 is summarized and an update on the current status an...

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3d- and 4f-Based Single Molecule Magnets

Ding

Winpenny

Zheng

2021

Comprehensive Coordination Chemistry III

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Aggregation of [LnIII12] clusters by the dianion of 3-formylsalicylic acid. Synthesis, crystal structures, magnetic and luminescence properties

Abstract: Three different lanthanides (EuIII, GdIII, DyIII) have been used to generate [Ln12] clusters with specific optical and magnetic properties.

Cited by 19 publications

References 67 publications

Solvothermal Syntheses, Crystal Structure, and Properties of Two Th(IV) Complexes Based on Diacylhydrazone Ligand

Solvothermal Syntheses, Crystal Structure, and Properties of Two Th(IV) Complexes Based on Diacylhydrazone Ligand

Metal–Organic Frameworks Based on Group 3 and 4 Metals

3d- and 4f-Based Single Molecule Magnets

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