Homodinuclear f–f and Heterodinuclear f–p Lanthanide Helicates

Albrecht, Markus

doi:10.1002/zaac.201000173

Cited by 13 publications

(6 citation statements)

References 37 publications

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“…The other compounds are expected to exhibit this property as well, and efforts to obtain larger single crystals to determine the scintillation capabilities are underway. Potentially, these materials may also be applicable to catalysis and luminescence. − …”

Section: Resultsmentioning

confidence: 99%

New Family of Cerium Halide Based Materials: CeX₃·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings

et al. 2012

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Six members of a new family of cerium-halide-based materials with promising scintillation behavior have been synthesized in single crystal form, and their crystal structures were determined. Specifically, these new compounds are [(CeCl(3))(7)(BuOH)(16)(H(2)O)(2)]·(BuOH)(2) (1), (CeBr(3))(14)(BuOH)(36) (2), [(CeCl(3))(7)(1-PrOH)(16)(H(2)O)(2)]·(1-PrOH)(2) (3), [(CeBr(3))(7)(1-PrOH)(18)]·(1-PrOH)(2) (4), [(CeCl(3))(6)(iBuOH)(15)]·(iBuOH)(2) (5), and CeCl(3)(sec-BuOH)(2)(H(2)O) (6). Additionally, the scintillation ability of compound 1 was established. The structures of these cerium-halide-based materials consist of catenated tetradecanuclear rings that arrange themselves into three distinct structural motifs which contain the largest lanthanide-based ring structures reported to date; the different motifs are obtained by involving specific alcohols during synthesis. Specifically, n-butanol and n-propanol lead to 1-D chains of tetradecanuclear rings, and iso-butanol leads to 2-D parquet-patterned sheets of rectangular tetradecanuclear rings, while sec-butanol results in a zigzag 1-D chain structure. One of the compounds, [(CeCl(3))(6)(iBuOH)(15)]·(iBuOH)(2), has been shown to scintillate with a light yield of up to 1920 photons/MeV, and due to the presence of protons, it should be capable of detecting high energy neutrons without the necessity of prior thermalization. Furthermore, it also appears to be the first cerium-based compound that scintillates in spite of the fact that water coordinates to two of the Ce(III) centers within the structure.

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Section: Resultsmentioning

confidence: 99%

New Family of Cerium Halide Based Materials: CeX₃·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings

et al. 2012

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“…41 Whilst much emphasis has been placed on the development of transition metal based supramolecular systems 37,[42][43][44][45][46] Ln III -directed selfassembly formation has only recently experienced considerable attention, offering a route towards large molecular fabrications such as bundles, helicates or hierarchical systems such as clusters or metal organic frameworks (MOFs). [47][48][49][50][51][52][53][54][55] Since the Ln III possess larger coordination numbers than the transition metal ions, ligand binding sites and metal coordination geometries play an even more important role in determining and controlling the overall structure of the resulting system.…”

Section: The Coordination Chemistry Of the Lanthanidesmentioning

confidence: 99%

Lanthanide-directed synthesis of luminescent self-assembly supramolecular structures and mechanically bonded systems from acyclic coordinating organic ligands

2016

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Herein some examples of the use of lanthanide ions (f-metal ions) to direct the synthesis of luminescent self-assembly systems (architectures) will be discussed. This area of lanthanide supramolecular chemistry is fast growing, thanks to the unique physical (magnetic and luminescent) and coordination properties of the lanthanides, which are often transferred to the resulting supermolecule. The emphasis herein will be on systems that are luminescent, and hence, generated by using either visibly emitting ions (such as Eu(III), Tb(III) and Sm(III)) or near infrared emitting ions (like Nd(III), Yb(III) and Er(III)), formed through the use of templating chemistry, by employing structurally simple ligands, possessing oxygen and nitrogen coordinating moieties. As the lanthanides have high coordination requirements, their use often allows for the formation of coordination compounds and supramolecular systems such as bundles, grids, helicates and interlocked molecules that are not synthetically accessible through the use of other commonly used templating ions such as transition metal ions. Hence, the use of the rare-earth metal ions can lead to the formation of unique and stable species in both solution and in the solid state, as well as functional and responsive structures.

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“…In particular helicates [4][5][6][7][8][9][10] have been extensively examined. Pioneering work by Hannon et al showed that a triply-stranded [Fe 2 L 3 ] 4+ (L = N,N 0 -(methanediyldibenzene-4,1-diyl)bis[1-(pyridin-2-yl)methanimine]) helicate [11] had extremely interesting biological properties [12,13].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure, stability and antimicrobial activity of a ruthenium(II) helicate derived from a bis-bidentate “click” pyridyl-1,2,3-triazole ligand

Kumar

Brooks

et al. 2015

Inorganica Chimica Acta

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Homodinuclear f–f and Heterodinuclear f–p Lanthanide Helicates

Cited by 13 publications

References 37 publications

New Family of Cerium Halide Based Materials: CeX₃·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings

New Family of Cerium Halide Based Materials: CeX₃·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings

Lanthanide-directed synthesis of luminescent self-assembly supramolecular structures and mechanically bonded systems from acyclic coordinating organic ligands

Synthesis, structure, stability and antimicrobial activity of a ruthenium(II) helicate derived from a bis-bidentate “click” pyridyl-1,2,3-triazole ligand

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Homodinuclear f–f and Heterodinuclear f–p Lanthanide Helicates

Cited by 13 publications

References 37 publications

New Family of Cerium Halide Based Materials: CeX3·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings

New Family of Cerium Halide Based Materials: CeX3·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings

Lanthanide-directed synthesis of luminescent self-assembly supramolecular structures and mechanically bonded systems from acyclic coordinating organic ligands

Synthesis, structure, stability and antimicrobial activity of a ruthenium(II) helicate derived from a bis-bidentate “click” pyridyl-1,2,3-triazole ligand

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Product

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New Family of Cerium Halide Based Materials: CeX₃·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings

New Family of Cerium Halide Based Materials: CeX₃·ROH Compounds Containing Planes, Chains, and Tetradecanuclear Rings