Mixed ligand complexes of AEE hexafluoroacetylacetonates with diglyme: Synthesis, crystal structure and thermal behavior

Kuzmina, Natalia; Tsymbarenko, Dmitry; Korsakov, I. E.; Starikova, Z. A.; Lysenko, Kostantin A.; Boytsova, O. V.; Миронов, А. В.; Малкерова, И. П.; Alikhanyan, A. S.

doi:10.1016/j.poly.2008.06.021

Cited by 24 publications

(33 citation statements)

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“…In the second type of hydrated complexes in [M(η 2 -hfac) 2 (η 3 -diglyme)(H 2 O)] (M = Ca, Sr), the 8-coordinated metal centers have a distorted antiprismatic geometry. 329 There are two crystallographically nonequivalent molecules in the asymmetric unit, which are combined into dimers by means of four hydrogen bonds between the oxygen atoms of the hfac − anions and the hydrogen atoms of H 2 O molecules. The crystal structure of anhydrous [Ba(η 2 -hfac) 2 (η 3 -diglyme) 2 ] consists of monomeric molecules containing 10-coordinated barium centers.…”

Section: Metal Complexes With Fluorinated β-Diketonesmentioning

confidence: 99%

Metal–Organic Derivatives with Fluorinated Ligands as Precursors for Inorganic Nanomaterials

2015

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Section: Metal Complexes With Fluorinated β-Diketonesmentioning

confidence: 99%

Metal–Organic Derivatives with Fluorinated Ligands as Precursors for Inorganic Nanomaterials

2015

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“…Powdered samples were sealed into tubes in a dry box and room temperature magnetic susceptibility measurements were performed by a Sherwood Scientific MBS-1 balance using Hg[Co(NCS) 4 ] as a standard. Diamagnetic corrections were applied using Pascal's constants and the magnetic moments were calculated.…”

Section: Generalmentioning

confidence: 99%

“…(4) je bil sintetiziran iz sve`e pripravljenega `elezovega(II) klorida hidrata, polietra diglyme in klorotrimetilsilana v diklorometanu. Ligand diglyme je koordiniran meridialno na centralni `elezov(II) ion tako v dvojedrnem kationu spojine 3 kot v dvojedrnih molekulah 4.…”

Section: Appendix a Supplementary Dataunclassified

“…[1][2][3][4] Saturating a coordination sphere of a metal by the tridentate chelate ligand diglyme hinders ´metal -metal´ contacts. The formation of two five-membered puckered rings increases the stability of complexes.…”

Section: Introductionmentioning

confidence: 99%

“…Diglyme is a flexible O-donor ligand able to coordinate to a whole range of metals; not only earth alkaline MOCVD precursors, [1][2][3][4] but also lanthanide(III) halide complexes have been extensively studied. [5][6][7][8][9][10] On the other hand, only a few examples of the first row d-block metal halide complexes with diglyme were prepared.…”

Section: Introductionmentioning

confidence: 99%

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Syntheses and crystal structures of vanadium and iron chloride complexes with diglyme

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2015

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Nanostructured CaF₂:Ln³⁺ (Ln³⁺ = Yb³⁺/Er³⁺, Yb³⁺/Tm³⁺) Thin Films: MOCVD Fabrication and Their Upconversion Properties

Pellegrino

Cortelletti

Pedroni

et al. 2017

Adv Materials Inter

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it possible to collect the radiation energy outside the absorption range of the photoactive material (usually silicon) by shifting its energy to a more suitable optical region. In addition, rare-earth doped CaF 2 compounds are promising luminescent materials as phosphors and in technological applications as micro-and nanoscale thermometry for microelectronics and for biomedical assays. [4,[16][17][18] A comment deserves the CaF 2 structure, also in view of similar ionic size of the trivalent lanthanide ions, inserted as dopants, and the Ca 2+ ion. Calcium fluoride has the typical fluorite structure, following the name (fluorite) of the mineral form of CaF 2 , which is a simple cubic arrangement of anions with 50% cubic sites filled with Ca 2+ . Thus, in this structure, calcium is eight coordinated by fluoride ions, a coordination environment suitable for the lanthanide ions, being eight one of the most common coordination number for lanthanides. [19] Most of the above-mentioned applications require the calcium fluoride material in the form of thin films. Several studies are available on the deposition of CaF 2 thin films using physical vapor deposition techniques, such as sputtering, [20,21] electron beam evaporation, [22] pulsed laser deposition, [23,24] and molecular beam epitaxy. [25,26] Calcium fluoride films have also been deposited through sol-gel chemical routes using spin coating [27] or dip coating. [28] Among the chemical vapor deposition approaches, atomic layer deposition has been applied to the deposition of CaF 2 films. [29] Nevertheless, even though various deposition methods have been applied to the fabrication of CaF 2 films, a more versatile, easily scalable, fast, and industrially appealing approach is highly desirable.The metal organic chemical vapor deposition (MOCVD) has the potential advantage of being a very reliable and reproducible method for the fast production of films with high uniformity degree in both thickness and composition over large areas. In addition, note that in the case of potential integration of these layers in photovoltaic cell production, plasma-enhanced CVD is the most common fabrication method for thin film Si-based cells. [30] Calcium fluoride represents one of the most efficient hosts for up-conversion or down-conversion emissions. A simple metal organic chemical vapor deposition approach is applied to the fabrication of CaF 2 nanostructured thin films using the fluorinated "second-generation" β-diketonate compound Ca (hfa) 2 •diglyme•H 2 O as a Ca-F single-source precursor. The versatility of the process is demonstrated for the fabrication of up-converting Yb/Er or Yb/Tm codoped CaF 2 films on Si, quartz, and glass substrates. The Ln(hfa) 3 •diglyme (Ln = Tm, Er, Yb) precursors are used as sources of the doping ions. Structural, morphological, and compositional characterization of the films shows the formation of polycrystalline CaF 2 films with a very uniform surface and suitable doping. In fact, an appropriate tuning of the mixture composition, i.e., the Ca:Ln ...

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Mixed ligand complexes of AEE hexafluoroacetylacetonates with diglyme: Synthesis, crystal structure and thermal behavior

Cited by 24 publications

References 20 publications

Metal–Organic Derivatives with Fluorinated Ligands as Precursors for Inorganic Nanomaterials

Metal–Organic Derivatives with Fluorinated Ligands as Precursors for Inorganic Nanomaterials

Syntheses and crystal structures of vanadium and iron chloride complexes with diglyme

Nanostructured CaF₂:Ln³⁺ (Ln³⁺ = Yb³⁺/Er³⁺, Yb³⁺/Tm³⁺) Thin Films: MOCVD Fabrication and Their Upconversion Properties

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Mixed ligand complexes of AEE hexafluoroacetylacetonates with diglyme: Synthesis, crystal structure and thermal behavior

Cited by 24 publications

References 20 publications

Metal–Organic Derivatives with Fluorinated Ligands as Precursors for Inorganic Nanomaterials

Metal–Organic Derivatives with Fluorinated Ligands as Precursors for Inorganic Nanomaterials

Syntheses and crystal structures of vanadium and iron chloride complexes with diglyme

Nanostructured CaF2:Ln3+ (Ln3+ = Yb3+/Er3+, Yb3+/Tm3+) Thin Films: MOCVD Fabrication and Their Upconversion Properties

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Nanostructured CaF₂:Ln³⁺ (Ln³⁺ = Yb³⁺/Er³⁺, Yb³⁺/Tm³⁺) Thin Films: MOCVD Fabrication and Their Upconversion Properties