Solvent effects and their relation to the E and C equation

Drago, Russell S.; PARR, L. B.; Chamberlain, Craig S.

doi:10.1021/ja00452a001

Cited by 138 publications

(32 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compared with those values, the strength of the hydrogen bond of Co(acac)3 and Co(q)3 is significantly high. For example, ∆H1 0 = -28 kJ mol -1 obtained in Co(acac)3-3-CP-CCl4 is comparable to the enthalpy for N,Ndimethylacetamide (DMA)-3-CP in CCl4, -28 kJ mol -1 , 22 where DMA is a base having a Gutmann's donor number of 27.8.…”

Section: Thermodynamics Of Hydrogen Bondingmentioning

confidence: 77%

Thermodynamic Study of the Hydrogen-Bonding Ability of Tris(pentane-2,4-dionato)cobalt(III) and Tris(8-quinolinolato)-cobalt(III) with Chlorinated Phenols as Proton Donor

Khan

Imura

2000

ANAL. SCI.

View full text Add to dashboard Cite

The hydrogen-bonding ability of metal chelates plays an important role in their solution behavior, such as solubility and liquid-liquid partition. In coordinately saturated chelates, especially tris(pentane-2,4-dionato)metal(III), specific solvation with chloroform, methanol, and water has long been studied by using various techniques, such as the solubility, X-ray analysis, IR, and NMR spectroscopy, and has been ascribed to outersphere coordination, principally via hydrogen bonding between the chelate and the solvent molecules. 1 Recently, one of the present authors demonstrated by the liquid-liquid partition technique that tris(pentane-2,4-dionato)cobalt(III) forms stable hydrogen-bonded complexes with chlorinated phenols, which are much stronger proton donors than the solvent molecules stated above.2 The partition coefficient of the cobalt(III) chelate remarkably increased owing to the formation of hydrogenbonded complexes. This finding led us to a new synergistic extraction system for aluminium(III), 3 scandium(III), 4 iron(III), 5 gallium(III), 6 and indium(III) 6 with pentane-2,4-dione (Hacac) and 3,5-dichlorophenol. In another work, Katsuta and Suzuki have reported on the extraction of iron(III) with 8-quinolinol in the presence of various chlorinated phenols as the synergist.

show abstract

Section: Thermodynamics Of Hydrogen Bondingmentioning

confidence: 77%

Thermodynamic Study of the Hydrogen-Bonding Ability of Tris(pentane-2,4-dionato)cobalt(III) and Tris(8-quinolinolato)-cobalt(III) with Chlorinated Phenols as Proton Donor

Khan

Imura

2000

ANAL. SCI.

View full text Add to dashboard Cite

show abstract

“…He points out that acid-base interactions across an interface (including hydrogen bonding) cannot be given a formulation that is as simple as that given for the London force. Fowkes and Mostafa(71) employ a treatment due to Drago et al(72,73) …”

Section: A2 Acid-base Interactions At Solid Surfacesmentioning

confidence: 99%

Contact Angles and the Surface Free Energy of Solids

Good

1979

Surface and Colloid Science

View full text Add to dashboard Cite

“…The choice [13][14][15] to quantify the donoracceptor strength of polymers and inorganic surfaces. According to this scheme, "acid gases" like COP and SO, are considered to be ?r*-electron pair acceptors l6 while polymers like CA and PMMA are electron donors (i.e., Lewis bases) .17 For example, PMMA is known to absorb strongly from solution onto an (acidic) silica surface but not on (basic) calcium carbonate.…”

Section: Introductionmentioning

confidence: 99%

High‐pressure FTIR studies of gas–polymer interactions

Fried

1990

J of Applied Polymer Sci

View full text Add to dashboard Cite

FTIR spectra of cellulose acetate (CA) and poly(methyl methacrylate) (PMMA) at 35°C have been obtained as a function of carbon dioxide pressure at pressures up to 55 atm in a specially designed FTIR cell. Results indicate that the carbonyl stretching vibrations for CA (1752 cm−1) and PMMA (1731 cm−1) shift to slightly higher wave numbers with increasing pressure. The small shifts suggest dipole–dipole interactions between CO2 and the carbonyl group. In both cases, the shift appears to be linear with pressure. This linearity is interpreted in the framework of the dualmode theory to suggest that gas–polymer interactions occur in the Henry's law dissolution mode.

show abstract

Solvent effects and their relation to the E and C equation

Cited by 138 publications

References 13 publications

Thermodynamic Study of the Hydrogen-Bonding Ability of Tris(pentane-2,4-dionato)cobalt(III) and Tris(8-quinolinolato)-cobalt(III) with Chlorinated Phenols as Proton Donor

Thermodynamic Study of the Hydrogen-Bonding Ability of Tris(pentane-2,4-dionato)cobalt(III) and Tris(8-quinolinolato)-cobalt(III) with Chlorinated Phenols as Proton Donor

Contact Angles and the Surface Free Energy of Solids

High‐pressure FTIR studies of gas–polymer interactions

Contact Info

Product

Resources

About