Vapour pressures of cyclopentadiene and Bis(cyclopentadienyl)magnesium

Highly Volatile Magnesium Complexes with the Aminodiboranate Anion, a New Chelating Borohydride. Synthesis and Characterization of Mg(H3BNMe2BH3)2 and Related Compounds

“…In comparison, all other magnesium compounds have lower volatilities. The widely used CVD source dicyclopentadienylmagnesium (Cp 2 Mg) has a vapor pressure of ∼45 mTorr at 25 °C . The magnesium amidinate complexes bis( N,N ′-di- tert -butylacetamidinato)magnesium and bis( N,N ′-diisopropylacetamidinato)magnesium sublime readily only when heated under vacuum to 70 °C; although they have been reported to be more volatile than Cp 2 Mg on the basis of their sublimation temperatures in the same evaporation apparatus, the vapor pressures have not been reported .…”

“…The widely used CVD source dicyclopentadienylmagnesium (Cp 2 Mg) has a vapor pressure of ∼45 mTorr at 25 °C. 37 The magnesium amidinate complexes bis(N,N 0 -di-tert-butylacetamidinato)magnesium and bis(N,N 0 -diisopropylacetamidinato)magnesium sublime readily only when heated under vacuum to 70 °C; although they have been reported to be more volatile than Cp 2 Mg on the basis of their sublimation temperatures in the same evaporation apparatus, the vapor pressures have not been reported. 38 Magnesium 2,2,6,6-tetramethyl-3,5-heptanedionate (thd), which is a dimer, Mg 2 (thd) 4 , 39 has been used as a CVD or atomic layer deposition (ALD) precursor for MgO thin films.…”

Reactions in the gas and liquid phases: Comparison of kinetic and thermodynamic data

“…From measurements of the equilibria between solutions of each of the substances and their respective vapors (261, the heats of vaporization of cyclopentadiene and its dimer from liquid paraffin are, respectively, about 6.2 and 7.9 kcal mol-I. The first of these quantities is a little smaller than the value (6.8 kcal mol-') reported for the heat of vaporization of the pure liquid [27]. The discrepancy implies some deviations from thermodynamic ideality in the solutions, but may be due in part to imprecision in the measurements on the solutions.…”

Size effects and hydrogen storage properties of Mg nanoparticles synthesised by an electroless reduction method

“…Herein, we report the facile synthesis of magnesium nanoparticles by an electroless reduction method using di-n-butylmagnesium, a more accessible precursor as compared to the expensive MgCp 2 , 30 which has proven to be an excellent starting material for the generation of MgH 2 nanoparticles by thermal hydrogenolysis. 31,32 We found that the Mg particle size and morphology were easily controlled by changing the reactants' ratio and Mg particles as small as 8 nm were obtained without stabilizer addition.…”