Vapor pressures by differential thermal analysis: application to some nickel chelates

Charles, Robert G.

doi:10.1016/0040-6031(80)85039-8

Thermochimica Acta

1980

DOI: 10.1016/0040-6031(80)85039-8

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Vapor pressures by differential thermal analysis: application to some nickel chelates

Robert G. Charles¹

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1992

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The Heterotrimetallic Complex [Ni(acacen)KLa(pta)4]: Structural and Thermochemical Studies

Kuzmina

Ryazanov

Малкерова

et al. 2001

Eur. J. Inorg. Chem.

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The heterotrimetallic species [Ni(acacen)KLa(pta)4] [H2acacen and Hpta being N,N′‐ethylenebis(acetylacetonimine) and 1,1,1‐trifluoro‐5,5‐dimethyl‐2,4‐hexanedione, respectively] was obtained by interaction of Ni(acacen) with KLa(pta)4 in chloroform. From the X‐ray, single crystal structure determination, the potassium cation acts as a bridge between the complex anion [La(pta)4]− and the neutral complex Ni(acacen). Sublimation, thermal behaviour, pressure, and composition of the vapour phase have been investigated for both [Ni(acacen)KLa(pta)4] and the parent complexes Ni(acacen) and KLa(pta)4, by means of thermal analysis and mass spectrometry using a Knudsen cell. The heterotrimetallic molecule was not found in the saturated vapour. Two processes take place upon heating: [Ni(acacen)KLa(pta)4](s) → [KLa(pta)4](s) + Ni(acacen)(g) and [KLa(pta)4](s) → [KLa(pta)4](g). The standard free energy of formation for [Ni(acacen)KLa(pta)4] have been estimated (ΔGf0 380K = −6.1±2 kJ/mol). [Ni(acacen)KLa(pta)4] can be sublimed completely at low pressure because both parent complexes KLa(pta)4 and Ni(acacen) are volatile.

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The Heterotrimetallic Complex [Ni(acacen)KLa(pta)4]: Structural and Thermochemical Studies

Kuzmina

Ryazanov

Малкерова

et al. 2001

Eur. J. Inorg. Chem.

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Thermal probe of vapor–liquid thermodynamic equilibrium

Khoshooei

2021

J Therm Anal Calorim

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Subambient applications of differential thermal analysis for the determination of vapor pressure

Brozena

Fielder

1992

Thermochimica Acta

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Vapor pressures by differential thermal analysis: application to some nickel chelates

Cited by 4 publications

References 20 publications

The Heterotrimetallic Complex [Ni(acacen)KLa(pta)4]: Structural and Thermochemical Studies

The Heterotrimetallic Complex [Ni(acacen)KLa(pta)4]: Structural and Thermochemical Studies

Thermal probe of vapor–liquid thermodynamic equilibrium

Subambient applications of differential thermal analysis for the determination of vapor pressure

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