Microwave-assisted synthesis of a neodymium trichloride complex with phenanthroline containing infinite chains, NdCl3(H2O)(phen)

Lhoste, Jérôme; Henry, Natacha; Loiseau, Thierry; Abraham, Francis

doi:10.1016/j.inoche.2011.06.013

Cited by 8 publications

(3 citation statements)

References 35 publications

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“…Particularly, some difficulties appeared for the preparation of the phases 1 and 2 , for which mixtures of compounds were formed during reactions by using conventional electrical heating system. Another possible alternative is the utilization of microwave heating method, which has been successfully applied to the preparation of MOF-type materials or coordination complexes . This technique was tested for compounds 1 and 2 , which favored its crystallization as pure phase.…”

Section: Introductionmentioning

confidence: 99%

Series of Mixed Uranyl–Lanthanide (Ce, Nd) Organic Coordination Polymers with Aromatic Polycarboxylates Linkers

et al. 2012

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Three series of mixed uranyl-lanthanide (Ce or Nd) carboxylate coordination polymers have been successfully synthesized by means of a hydrothermal route using either conventional or microwave heating methods. These compounds have been prepared from mixtures of uranyl nitrate, lanthanide nitrate together with phthalic acid (1,2), pyromellitic acid (3,4), or mellitic acid (5,6) in aqueous solution. The X-ray diffraction (XRD) single-crystal revealed that the phthalate complex (UO(2))(4)O(2)Ln(H(2)O)(7)(1,2-bdc)(4)·NH(4)·xH(2)O (Ln = Ce(1), Nd(2); x = 1 for 1, x = 0 for 2), is based on the connection of tetranuclear uranyl-centered building blocks linked to discrete monomeric units LnO(2)(H(2)O)(7) via the organic species to generate infinite chains, intercalated by free ammonium cations. The pyromellitate phase (UO(2))(3)Ln(2)(H(2)O)(12)(btec)(3)·5H(2)O (Ce(3), Nd(4)) contains layers of monomeric uranyl-centered hexagonal and pentagonal bipyramids linked via the carboxylate arms of the organic molecules. The three-dimensionality of the structure is ensured by the connection of remaining free carboxylate groups with isolated monomeric units LnO(2)(H(2)O)(7). The network of the third series (UO(2))(2)(OH)Ln(H(2)O)(7)(mel)·5H(2)O (Ce(5), Nd(6)) is built up from dinuclear uranyl units forming layers through connection with the mellitate ligands, which are further linked to each other through discrete monomers LnO(3)(H(2)O)(6). The thermal decomposition of the various coordination complexes led to the formation of mixed uranium-lanthanide oxide, with the fluorite-type structure at 1500 °C (for 1, 2) or 1400 °C for 3-6. Expected U/Ln ratio from the crystal structures were observed for compounds 1-6.

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Section: Introductionmentioning

confidence: 99%

Series of Mixed Uranyl–Lanthanide (Ce, Nd) Organic Coordination Polymers with Aromatic Polycarboxylates Linkers

et al. 2012

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“…The general synthetic approach for forming the subject six compounds is based on the fact that dimeric adducts of lanthanide halides can be achieved through the coordination of small ligands such as methanol, THF, and isopropanol. It has also been shown in the literature that these materials can easily form 1-D chains upon the incorporation of water into the structure. − Loiseau et al have observed similar trends with NdCl 3 and EuCl 3 incorporating much larger ligands such as phenanthroline and terpyridine. , …”

Section: Introductionmentioning

confidence: 73%

“…11−15 Loiseau et al have observed similar trends with NdCl 3 and EuCl 3 incorporating much larger ligands such as phenanthroline and terpyridine. 16,17 General Procedure for the Preparation of Compounds 1−6. CeCl 3 (99.99%) was purchased from Sigma Aldrich, and CeBr 3 (99.9%) was purchased from Strem Chemicals; both were packed under argon and stored in a glovebox.…”

Section: ■ Introductionmentioning

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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Mechanochemical Synthesis of 3d Transition‐Metal–1,2,4‐Triazole Complexes as Precursors for Microwave‐Assisted and Thermal Conversion to Coordination Polymers with a High Influence on the Dielectric Properties

Brede

Heine

Sextl

et al. 2016

Chemistry A European J

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The complexes [MCl2 (TzH)4] (M=Mn (1), Fe (2); TzH=1,2,4-1H-triazole) and [ZnCl2 (TzH)2] (3) have been obtained by mechanochemical reactions of the corresponding divalent metal chloride and 1,2,4-1H-triazole. They were successfully used as precursors for the formation of coordination polymers either by a microwave-assisted reaction or by thermal conversion. For manganese, the conversion directly yielded 1∞ [MnCl2 TzH] (4), whereas for the iron-containing precursor, 1∞ [FeCl2 TzH] (6), was formed via the intermediate coordination polymer 1∞ [FeCl(TzH)2]Cl (5). For cobalt, the isotypic polymer 1∞ [CoCl(TzH)2]Cl (7) was obtained, but exclusively by a microwave-induced reaction directly from CoCl2 . The crystal structures were resolved from single crystals and powders. The dielectric properties were determined and revealed large differences in permittivity between the precursor complexes and the rigid chain-like coordination polymers. Whereas the monomeric complexes exhibit very different dielectric behaviour, depending on the transition metal, from "low-k" to "high-k" with the permittivity ranging from 4.3 to >100 for frequencies of up to 1000 Hz, the coordination polymers and complexes with strong intermolecular interactions are all close to "low-k" materials with very low dielectric constants up to 50 °C. Therefore, the conversion procedures can be used to deliberately influence the dielectric properties from complex to polymer and for different 3d transition-metal ions.

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Microwave-assisted synthesis of a neodymium trichloride complex with phenanthroline containing infinite chains, NdCl3(H2O)(phen)

Cited by 8 publications

References 35 publications

Series of Mixed Uranyl–Lanthanide (Ce, Nd) Organic Coordination Polymers with Aromatic Polycarboxylates Linkers

Series of Mixed Uranyl–Lanthanide (Ce, Nd) Organic Coordination Polymers with Aromatic Polycarboxylates Linkers

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

Mechanochemical Synthesis of 3d Transition‐Metal–1,2,4‐Triazole Complexes as Precursors for Microwave‐Assisted and Thermal Conversion to Coordination Polymers with a High Influence on the Dielectric Properties

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Microwave-assisted synthesis of a neodymium trichloride complex with phenanthroline containing infinite chains, NdCl3(H2O)(phen)

Cited by 8 publications

References 35 publications

Series of Mixed Uranyl–Lanthanide (Ce, Nd) Organic Coordination Polymers with Aromatic Polycarboxylates Linkers

Series of Mixed Uranyl–Lanthanide (Ce, Nd) Organic Coordination Polymers with Aromatic Polycarboxylates Linkers

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

Mechanochemical Synthesis of 3d Transition‐Metal–1,2,4‐Triazole Complexes as Precursors for Microwave‐Assisted and Thermal Conversion to Coordination Polymers with a High Influence on the Dielectric Properties

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