Chelates of β-Diketones. V. Preparation and Properties of Chelates Containing Sterieally Hindered Ligands

Hammond, George S.; Nonhebel, D. C.; Wu, Chin-Hua S.

doi:10.1021/ic50005a021

Cited by 231 publications

(68 citation statements)

References 2 publications

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“…Synthesis of Co(thd) 2 : The precursor was synthesized by a slightly modified standard method described by Hammond et al [37]. The FTIR spectrum of the selected precursors in KBr showed bands identical to those already reported [38].…”

Section: Methodsmentioning

confidence: 98%

Growth Kinetics, Composition, and Morphology of Co₃O₄ Thin Films Prepared by Pulsed Liquid‐Injection MOCVD

Burriel

García²,

Santiso

et al. 2005

Chemical Vapor Deposition

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Cobalt oxide films were grown by pulsed liquid injection MOCVD using Co(thd) 2 dissolved in monoglyme as the precursor. The structure, morphology, and growth rate of the layers deposited on silicon substrates were studied as a function of solution concentration, deposition temperature, and oxygen partial pressure. X-ray diffraction (XRD) of films deposited from 350 C to 540 C showed a pure Co 3 O 4 spinel structure and no CoO was detected, even at the lowest oxygen pressure. X-ray photoelectron spectroscopy (XPS) was used to study the surface composition and oxidation states. Surprisingly, XPS spectra recorded for most of the films seemed to correspond to CoO. This unexpected oxidation state on the surface was assigned to the effect of the high density of edges and corners present in the surface morphology.

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Section: Methodsmentioning

confidence: 98%

Growth Kinetics, Composition, and Morphology of Co₃O₄ Thin Films Prepared by Pulsed Liquid‐Injection MOCVD

Burriel

García²,

Santiso

et al. 2005

Chemical Vapor Deposition

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“…The precursors Ni-bis-2,2,6,6-tetramethyl-heptane-3,5-dionate (Ni(tmhd) 2 ) and Co-bis-2,2,6,6-tetramethyl-heptane-3,5-dionate (Co(tmhd) 2 ) were synthesized according to literature methods 26 and purified by sublimation in vacuum before use. The films were deposited in an ASM-Microchemistry F-120 flow-type reactor which operated under moderate vacuum of 1-3 mbar.…”

Section: Methodsmentioning

confidence: 99%

Atomic layer deposition of nickel–cobalt spinel thin films

2017

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We report the atomic layer deposition (ALD) of high-quality crystalline thin films of the spinel-oxide system (Co 1−x Ni x ) 3 O 4 . These spinel oxides are ferrimagnetic p-type semiconductors promising for several applications ranging from photovoltaics and spintronics to thermoelectrics. The spinel phase is obtained for Ni contents exceeding thex = 0.33 limit for bulk samples. It is observed that the electrical resistivity decreases continuously with x while the magnetic moment increases up to x = 0.5. This is in contrast to bulk samples where a decrease of resistivity is not observed for x > 0.33 due to the formation of a rock-salt phase. From UV-VIS-NIR absorption measurements, a change from distinct absorption edges for the parent oxide Co 3 O 4 to a continuous absorption band ranging deep into the near infrared for 0 < x ≤ 0.5 was observed. The conformal deposition of dense films on high-aspect-ratio patterns is demonstrated.

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“…The Na-uracil thin films were grown using in-house made Na(thd) (thd: 2,2,6,6-tetramethyl-3,5-heptadionate) 35 and commercial uracil powder (Sigma Aldrich) as precursors; the precursor powders were sublimed from glass crucibles which were kept inside the reactor, at 195 and 235…”

Section: Methodsmentioning

confidence: 99%

Three-Dimensional Uracil Network with Sodium as a Linker

et al. 2016

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Here we show that uracil and sodium form a three-dimensional metal-mediated nucleic acid network; it is grown in atomic/molecular layer-by-layer manner using the atomic/molecular layer deposition (ALD/MLD) thin-film technique. The long-range ordered Na-uracil crystalline structure is evidenced as sharp Bragg reflections. Based on density functional theory (DFT) calculations, a tetrameric-like crystal structure is proposed. Na-uracil thin films are fluorescent with a lifetime three orders of magnitude higher than commonly seen for nucleic acid molecules. Our method provides a new approach to designing 3D nucleic acid-metal nanostructures.

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Chelates of β-Diketones. V. Preparation and Properties of Chelates Containing Sterieally Hindered Ligands

Cited by 231 publications

References 2 publications

Growth Kinetics, Composition, and Morphology of Co₃O₄ Thin Films Prepared by Pulsed Liquid‐Injection MOCVD

Growth Kinetics, Composition, and Morphology of Co₃O₄ Thin Films Prepared by Pulsed Liquid‐Injection MOCVD

Atomic layer deposition of nickel–cobalt spinel thin films

Three-Dimensional Uracil Network with Sodium as a Linker

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Chelates of β-Diketones. V. Preparation and Properties of Chelates Containing Sterieally Hindered Ligands

Cited by 231 publications

References 2 publications

Growth Kinetics, Composition, and Morphology of Co3O4 Thin Films Prepared by Pulsed Liquid‐Injection MOCVD

Growth Kinetics, Composition, and Morphology of Co3O4 Thin Films Prepared by Pulsed Liquid‐Injection MOCVD

Atomic layer deposition of nickel–cobalt spinel thin films

Three-Dimensional Uracil Network with Sodium as a Linker

Contact Info

Product

Resources

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Growth Kinetics, Composition, and Morphology of Co₃O₄ Thin Films Prepared by Pulsed Liquid‐Injection MOCVD

Growth Kinetics, Composition, and Morphology of Co₃O₄ Thin Films Prepared by Pulsed Liquid‐Injection MOCVD