Articles with "hfac" as a keyword



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A new mononuclear terbium and copper cocrystalline nitronyl nitroxide complex: synthesis, structure and magnetic properties

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Published in 2021 at "Journal of Molecular Structure"

DOI: 10.1016/j.molstruc.2020.129012

Abstract: Abstract One 2p-3d-4f multispin complex [Cu(hfac)(4-Me-3-NITtrz)2][Tb(hfac)4]·H2O (1) has been obtained based on a functionalized nitronyl nitroxide radical 4-Me-3-Nit-trz (in which, 4-Me-3-Nit-trz = 2-[3-(4-methyl-l,2,4-triazolyl)]-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide, hfac = hexafluoroacetylacetone). Complex 1 crystallizes in tetragonal system, I 4 ¯ space group. The central… read more here.

Keywords: nitronyl nitroxide; terbium copper; new mononuclear; structure ... See more keywords
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A Manganese (II) Dimer Bearing the Reduced Derivatives of Nitronyl Nitroxides

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Published in 2021 at "Polyhedron"

DOI: 10.1016/j.poly.2021.115427

Abstract: Abstract We report the synthesis, magnetic EPR and conducting properties of a new manganese complex [MnII(hfac)2(IMHPhOPh)]2[MnII(hfac)3](IMH2PhOPh) (1), containing the reduced forms (IMHPhOPh and IMH2PhOPh) of the NIT-PhOPh radical (NIT-PhOPh = 2,4‘-benzoxo-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide). Magnetic susceptibility studies reveal… read more here.

Keywords: mnii hfac; hfac imhphoph; dimer bearing; manganese dimer ... See more keywords

Mechanochemical Syntheses of Ln(hfac)3(H2O)x (Ln = La-Sm, Tb): Isolation of 10-, 9-, and 8-Coordinate Ln(hfac)n Complexes

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Published in 2022 at "Inorganic Chemistry"

DOI: 10.1021/acs.inorgchem.2c01274

Abstract: Volatile lanthanide coordination complexes are critical to the generation of new optical and magnetic materials. One of the most common precursors for preparing volatile lanthanide complexes is the hydrate with the general formula Ln(hfac)3(H2O)x (x… read more here.

Keywords: hfac; syntheses hfac; spectroscopy; h2o isolation ... See more keywords
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Position Assignment and Oxidation State Recognition of Fe and Co Centers in Heterometallic Mixed-Valent Molecular Precursors for the Low-Temperature Preparation of Target Spinel Oxide Materials.

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Published in 2017 at "Inorganic chemistry"

DOI: 10.1021/acs.inorgchem.7b01032

Abstract: A series of mixed-valent, heterometallic (mixed-transition metal) diketonates that can be utilized as prospective volatile single-source precursors for the low-temperature preparation of MxM'3-xO4 spinel oxide materials is reported. Three iron-cobalt complexes with Fe/Co ratios of… read more here.

Keywords: temperature preparation; low temperature; coii hfac; coii ... See more keywords
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Three-Dimensional Supramolecular Architectures with MnII Ions Assembled from Hydrogen Bonding Interactions: Crystal Structures and Antiferromagnetic Properties

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Published in 2022 at "ACS Omega"

DOI: 10.1021/acsomega.1c05285

Abstract: Two novel cocrystal MnII compounds were successfully synthesized. The composition of two kinds crystals correspond to [Mn(hfac)2La2·Mn(hfac)2La(H2O)·Mn(hfac)2(H2O)2] (1) and [Mn(hfac)2Lb2·Mn(hfac)2(H2O)2·0.5(C6H14)] (2) [La = 1,3-bis(1′-oxyl-3′-oxido-4′,4′,5′,5′-tetramethyl-4,5-dihydro-1H-imidazol-2-y1)benzene; Lb = 1-(1′-oxyl-4′,4′,5′,5′-tetramethylimidazolin-2-yl)-3-(1′-oxyl-3′-oxo-4′,4′,5′,5′-tetramethylimidazolin-2-yl)benzene; hfac = hexafluoroacetylacetonato). Surprisingly, the compounds were not… read more here.

Keywords: hfac; mnii ions; architectures mnii; three dimensional ... See more keywords
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Modulating the magnetization dynamics in Ln-Cu-Rad hetero-tri-spin complexes through cis/trans coordination of nitronyl nitroxide radicals around the metal center.

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Published in 2021 at "Dalton transactions"

DOI: 10.1039/d1dt00090j

Abstract: Self-assembling the novel nitronyl nitroxide radical NIT-3Py-5-Ph (2-(5-phenyl-3-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide) with Ln(hfac)3·2H2O and Cu(hfac)2 (hfac = hexafluoroacetylacetonate) resulted in two heterometallic complexes with formula [LnCu(hfac)5(NIT-3Py-5-Ph)2] (Ln = Gd 1, Dy 2), in which two NIT-3Py-5-Ph radicals are… read more here.

Keywords: nitronyl nitroxide; nit 3py; 3py 4py; center ... See more keywords
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Supramolecular heptanuclear Ln-Cu complexes involving nitronyl nitroxide biradicals: structure and magnetic behavior.

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Published in 2022 at "Dalton transactions"

DOI: 10.1039/d2dt00220e

Abstract: Four novel heptanuclear Ln-Cu complexes with the formula [Ln2Cu(hfac)8(NITPhTzbis)2][LnCu(hfac)5(NITPhTzbis)]2 (LnCu = YCu 1, TbCu 2, DyCu 3 and HoCu 4; hfac = hexafluoroacetylacetonate) were successfully constructed by employing the triazole functionalized nitronyl nitroxide biradical ligand… read more here.

Keywords: hfac; hfac nitphtzbis; structure; supramolecular heptanuclear ... See more keywords
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Formation and desorption of nickel hexafluoroacetylacetonate Ni(hfac)2 on a nickel oxide surface in atomic layer etching processes

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Published in 2020 at "Journal of Vacuum Science and Technology"

DOI: 10.1116/6.0000293

Abstract: Thermal atomic layer etching (ALE) of nickel (Ni) may be performed with a step of thin-layer oxidation of its surface and another step of its removal by gas-phase hexafluoroacetylacetone (hfacH) as an etchant. In this… read more here.

Keywords: nickel; layer; surface; formation ... See more keywords
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HFAC Dose Repetition and Accumulation Leads to Progressively Longer Block Carryover Effect in Rat Sciatic Nerve

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Published in 2022 at "Frontiers in Neuroscience"

DOI: 10.3389/fnins.2022.852166

Abstract: This paper describes high-frequency nerve block experiments carried out on rat sciatic nerves to measure the speed of recovery of A fibres from block carryover. Block carryover is the process by which nerve excitability remains… read more here.

Keywords: hfac; rat sciatic; block carryover; nerve ... See more keywords