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Beta-Diketone

The Experts below are selected from a list of 210 Experts worldwide ranked by ideXlab platform

Tamara P. Chusova – 1st expert on this subject based on the ideXlab platform

  • Thermal properties of volatile ruthenium(III) complexes
    Journal of Thermal Analysis and Calorimetry, 2012
    Co-Authors: Kseniya V. Zherikova, Ludmila N. Zelenina, Natalia B. Morozova, Tamara P. Chusova

    Abstract:

    Complexes of ruthenium(III) with the following Beta-Diketone derivatives: 2,4-pentanedione (Ru(acac)_3), 1,1,1,6,6,6-hexafluoro-2,4-pentanedione (Ru(hfac)_3), and 2-methoxy-2,6-dimethyl-3,5-heptanedione (Ru(mdhd)_3) were synthesized, purified, and identified by chemical analysis and melting points. By difference-scanning calorimetry (DSC) in vacuum the thermodynamic characteristics of melting processes were defined. Using the static method with quartz membrane zero-manometer, the temperature dependencies of saturated and unsaturated vapor pressure were obtained for Ru(hfac)_3. The standard thermodynamic characteristics of vaporization processes enthalpy ∆ H _ T* and entropy ∆ S° _ T* were determined.

Yiqun Wu – 2nd expert on this subject based on the ideXlab platform

  • Synthesis, spectral, and thermal characterizations of Ni(II) and Cu(II) Beta-Diketone complexes with thenoyltrifluoroacetone ligand.
    Spectrochimica acta. Part A Molecular and biomolecular spectroscopy, 2006
    Co-Authors: Zhimin Chen, Yiqun Wu, Fuxin Huang, Donghong Gu

    Abstract:

    Two kinds of nickel(II) and copper(II) Beta-Diketone complexes derived from thenoyltrifluoroacetone ligand with blue-violet light absorption were synthesized by reacting free ligand and different metal(II) ions in sodium methoxide solution. Their structures were postulated based on elemental analysis, ESI-MS, FT-IR spectra and UV-vis electronic absorption spectra. Smooth films on K9 glass substrates were prepared using the spin-coating method. Their solubility in organic solvents, absorption properties of thin film and thermal stability of these complexes were evaluated.

  • Rare earth doped β-diketone complexes as promising high-density optical recording materials for blue optoelectronics
    Materials Letters, 2005
    Co-Authors: Dongzhe Ma, Yiqun Wu

    Abstract:

    Some kinds of rare earth Beta-Diketone complexes with blue-violet light absorption edge were synthesized using the ligands of thenoyltrifluoroacctone (HTTA), 2, 2′-dipyridyl (BIPY) and different metal ions (Gd3+, Sm3+ and La3+). Their contents, structures and optoelectronic parameters were monitored by elemental analysis, MS, IR and UV spectra. The solubility of rare earth Beta-Diketone complexes in 2, 2, 3, 3-tetrafluoro-1-propanol (TFP) and absorption properties of their films in the region 300-800 nm were measured. The influence on the difference of absorption maximum from rare earth Beta-Diketone complexes to Beta-Diketone ligand by different metal ions was studied. In addition, the thermal stability of rare earth Beta-Diketone complexes was also reported. (C) 2005 Elsevier B.V. All rights reserved.

Kseniya V. Zherikova – 3rd expert on this subject based on the ideXlab platform

  • Thermal properties of volatile ruthenium(III) complexes
    Journal of Thermal Analysis and Calorimetry, 2012
    Co-Authors: Kseniya V. Zherikova, Ludmila N. Zelenina, Natalia B. Morozova, Tamara P. Chusova

    Abstract:

    Complexes of ruthenium(III) with the following Beta-Diketone derivatives: 2,4-pentanedione (Ru(acac)_3), 1,1,1,6,6,6-hexafluoro-2,4-pentanedione (Ru(hfac)_3), and 2-methoxy-2,6-dimethyl-3,5-heptanedione (Ru(mdhd)_3) were synthesized, purified, and identified by chemical analysis and melting points. By difference-scanning calorimetry (DSC) in vacuum the thermodynamic characteristics of melting processes were defined. Using the static method with quartz membrane zero-manometer, the temperature dependencies of saturated and unsaturated vapor pressure were obtained for Ru(hfac)_3. The standard thermodynamic characteristics of vaporization processes enthalpy ∆ H _ T* and entropy ∆ S° _ T* were determined.