Influence of the dielectric constant on the viscosity and on the formation of conducting ions in binary carboxylic acids-triethylamine mixtures

Huyskens, P.; Felix, N.; Janssens, A.; Broeck, F. Van den; Kapuku, F.

doi:10.1021/j100448a020

Cited by 35 publications

(34 citation statements)

References 1 publication

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“…The interactions between amines (A) and carboxylic acids (C) have been comprehensively studied [12][13][14][15][16][17][18]. Amines and carboxylic acid mixtures interact strongly via hydrogen bonding [12,15].…”

Section: Introductionmentioning

confidence: 99%

TGA–FTIR study of the vapors released by triethylamine–acetic acid mixtures

2012

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Proprietary mixtures of amines and carboxylic acids are used as volatile corrosion inhibitors (VCIs) for the protection of iron and steel components against atmospheric corrosion. This study was focused on the nature of the vapors they release. VCI model compounds comprising mixtures of triethylamine and acetic acid were studied using thermogravimetric analysis coupled with Fourier-transform infrared spectroscopy (TGA-FTIR) at 50°C. As vaporization progressed, the composition of the remaining liquid and the emitted vapor con v erged to a f i xed ami ne con ten t of ca. 27 m ol e percen t. Thi s was j ust ab ov e th e composition expected for the 1:3 amine to carboxylic acid complex. Mixtures close to this composition also featured the lowest volatility.

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Section: Introductionmentioning

confidence: 99%

TGA–FTIR study of the vapors released by triethylamine–acetic acid mixtures

2012

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“…More encouragingly, a third paper reports9 that [RuCl(O 2 CMe)(PMe 3 ) 4 ] promotes CO 2 hydrogenation in neat NEt 3 , but the reaction was stopped by freezing when only 15 % of NEt 3 had reacted. For better understanding and planning of CO 2 /H 2 incorporation into NEt 3 it must be borne in mind that addition of HCOOH to an excess of amine leads to a biphasic system10 constituted by NEt 3 and an adduct with AAR=1.33, whose composition remains unchanged upon addition of HCOOH until free amine is present (see Supporting Information). The chemical and physical properties of the amine are completely different from those of the immiscible adduct.…”

mentioning

confidence: 99%

Production of HCOOH/NEt₃ Adducts by CO₂/H₂ Incorporation into Neat NEt₃

Preti

Squarcialupi²,

Fachinetti

2010

Angew Chem Int Ed

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Research efforts are currently devoted to hydrogen storage in CO 2 as formic acid derivatives, a thirty-year old idea [1] not yet implemented. A chemical loop is conceivable based on a formate intermediate which can be produced in a pure and storable form under moderately high CO 2 and H 2 pressures and which can release gases at atmospheric pressure on demand when in contact with an appropriate catalyst. The catalytic decomposition of HCOOH itself has received renewed attention.[2] Remarkably, M. Beller and co-workers have demonstrated that HCOOH/NEt 3 adducts can also be catalytically decomposed at 40 8C to H 2 free of CO, albeit diluted by CO 2 .[3] However, a procedure for the production of either HCOOH or HCOOH/NEt 3 adducts from CO 2 and H 2 is still lacking. The formation of HCOOH by CO 2 hydrogenation is hampered by unfavorable thermodynamics (DG o 298 = + 33 kJ mol À1

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“…In contrast, the same environment diminished the energy difference of complexes 37, while the relative stability of [T-4-R]-37 slightly increased. Both effects even reinforced in an environment with a higher relative permittivity of 80, which roughly corresponds to the permittivity of a solution of formic acid in triethylamine or of water (Tables 5 and 6) [58].…”

Section: Preference For the Formation Of Particular Enantiomersmentioning

confidence: 88%

“…b Relative permittivity. c Estimated relative permittivity for a solution of formic acid in triethylamine or for water [58]. The related structures are depicted in the supporting information.…”

Section: Degradation Of the Ligandmentioning

confidence: 99%