@article {2610,
	title = {HL2[P(1,2-O(2)C(6)H4)(3)] (L = DMSO or DMF): A Convenient Proton Source with a Weakly Basic Phosphorus(V) Anion},
	journal = {Organometallics},
	volume = {28},
	number = {15},
	year = {2009},
	note = {ISI Document Delivery No.: 476PYTimes Cited: 0Cited Reference Count: 114Siu, Paul W. Gates, Derek P.},
	month = {Aug},
	pages = {4491-4499},
	type = {Review},
	abstract = {Treating phosphorus pentachloride with catechol (3 equiv) followed by the addition of dimethylsulfoxide (DMSO) or dimethylformamide (DMF) affords isolable bronsted acids of tris- (o-phenylenedioxy)phosphate anion, [p(1,2-O2C6H4)(3)](-). Specifically. H(DMSO)(2)[P(1,2-O2C6H4)(3)] and H(DMF)(2)[P(1,2-O2C6H4)(3)] have been isolated as crystalline solids. The downfield shifts of the acidic proton in their H-1 NMR spectra are consistent with its expected high acidity. The molecular structures of H(DMSO)(2)[P(1,2-O2C6H4)(3)] and H(DMF)(2)[P(1,2-O2C6H4)(3)] reveal that the protons in each are O-bound by either DMSO (x2) or DMF (x2). The N-H stretching frequency for the Oct(3)NH[P(1,2-O2C6H4)(3)] ((V) over bar (N-H) =3129 cm(-1)) is identical to that observed for trioctylammonium tetrafluoroborate ((v) over bar (N-H) = 3129 cm(-1)), suggesting that the basicity of these two weakly coordinating anions is similar. A preliminary investigation of the effectiveness of H(DMF)(2)[p(1,2-O2C6H4] in the protonolysis of metal-alkyl bonds was undertaken. Treating (dppe) pdMe(2) [dppe = 1,2-bis(diphenylphosphino)ethane] with H(DMF)(2)[P(1,2-O2C6H4)(3)] affords either [(dppe)pd(NCMe)Me][P(1,2-O2C6H4)(3) (1:1 ratio) or [(dppe)pd(NCMe)(2)(][P(1,2-O2C6H4)(3)](2) (1:2 ratio), both of which are structurally characterized.},
	keywords = {ALTERNATING COPOLYMERIZATION, ANIONS, CARBON-MONOXIDE, COORDINATING ANIONS, CRYSTAL-STRUCTURE, DIMETHYL-SULFOXIDE, MIGRATORY INSERTION, MOLECULAR-STRUCTURE, OLEFIN, PALLADIUM(II) COMPLEXES, POLYMERIZATION, SUPERWEAK},
	isbn = {0276-7333},
	url = {<Go to ISI>://000268455900036},
	author = {Siu, P. W. and Gates, D. P.}
}
@article {4007,
	title = {Measurement of cryoprotective solvent penetration into intact organ tissues using high-field NMR microimaging},
	journal = {Cryobiology},
	volume = {35},
	number = {2},
	year = {1997},
	note = {ISI Document Delivery No.: XY819Times Cited: 9Cited Reference Count: 17},
	month = {Sep},
	pages = {165-172},
	type = {Article},
	abstract = {Existing methods are not able to monitor accurately the penetration of cryoprotective solvents (CPS) into intact tissues. In this study, NMR imaging is shown to be a noninvasive nondestructive way to measure penetration rates and effective diffusion coefficients of Me2SO into samples of rat kidney and rat liver tissues. This new method is unique in that the measurements obtained are not averaged over the entire tissue volume but may be made at any site in the tissue. Measurements of penetration rates yield values which are similar to literature values, and the effective diffusion coefficients fall within the expected range. The images also suggest an explanation of why CPSs fail to completely protect organs from freezing damage. (C) 1997 Academic Press.},
	keywords = {CRYOPRESERVATION, DIMETHYL-SULFOXIDE},
	isbn = {0011-2240},
	url = {<Go to ISI>://A1997XY81900008},
	author = {Isbell, S. A. and Fyfe, C. A. and Ammons, R. L. M. and Pearson, B.}
}
@article {3848,
	title = {Intermolecular interactions in 2-butoxyethanol-DMSO-H2O},
	journal = {Journal of Physical Chemistry},
	volume = {100},
	number = {1},
	year = {1996},
	note = {ISI Document Delivery No.: TN839Times Cited: 15Cited Reference Count: 23},
	month = {Jan},
	pages = {433-438},
	type = {Article},
	abstract = {Excess partial molar enthalpy, H-B(E), and chemical potential, mu(B)(E), of 2-butoxyethanol (B) were determined in ternary mixtures of B, dimethyl sulfoxide (D), and H2O. The data were obtained in small enough mole fraction increments to evaluate the so-called interaction functions, partial derivative H-B(E)/partial derivative x(B), partial derivative H-B(E)/partial derivative x(D), partial derivative mu(B)(E)/partial derivative x(B), and partial derivative mu(B)E/partial derivative x(D). These interaction functions previously proved useful in elucidating the {\textquoteright}{\textquoteright}mixing schemes{\textquoteright}{\textquoteright} in binary aqueous solutions of B and D. For the binary mixtures, it was found that both B and D influenced H2O in the following manner: in the water-rich composition range (region I) within a certain threshold (x(B) < 0.0175 and x(D) < 0.28 at 25 degrees C), both solutes enhance the hydrogen-bonded network of water in their vicinity, and the mixtures retain the percolated nature of the network. At higher B or D concentrations (region II) a qualitatively different mixing scheme becomes operative. The results from this work suggest that, in the ternary mixtures, solute B and D influences the percolated hydrogen bond network of water competitively or cooperatively. The observed effects are in accordance with those characteristic of mixing scheme I in the binary mixtures, as long as the concentration of both solutes is within the threshold values. When either one of the solutes is concentrated beyond its threshold, mixing scheme II seems to set in. It was found that D diminished the positive (unfavorable) enthalpy of B-B interactions and that this effect was almost completely compensated by changes in interaction entropy. Hence, D had little net effect on the Gibbs energy of mutual B interactions, or in other words, D did not weaken the hydrophobic attraction between B molecules. Evaluation of {\textquoteright}{\textquoteright}heterogeneous{\textquoteright}{\textquoteright} B-D interactions in region I suggested that they were weaker than B-B interactions and governed by reorganization of water-water hydrogen bonding rather than interactions between specific groups in B and D. Some implications of these findings on cosolvent effects in aqueous solutions of biopolymers are discussed.},
	keywords = {AQUEOUS 2-BUTOXYETHANOL, denaturation, DIMETHYL-SULFOXIDE, LYSOZYME, MIXING SCHEME, MIXTURES, NEUTRON-DIFFRACTION, PARTIAL MOLAR ENTHALPIES, VOLUMES, WATER-RICH REGION},
	isbn = {0022-3654},
	url = {<Go to ISI>://A1996TN83900065},
	author = {Westh, P. and Koga,Yoshikata}
}
@article {3412,
	title = {EXCESS PARTIAL MOLAR ENTHALPIES, ENTROPIES, GIBBS ENERGIES, AND VOLUMES IN AQUEOUS DIMETHYLSULFOXIDE},
	journal = {Journal of Solution Chemistry},
	volume = {24},
	number = {1},
	year = {1995},
	note = {ISI Document Delivery No.: QF279Times Cited: 60Cited Reference Count: 20},
	month = {Jan},
	pages = {89-102},
	type = {Article},
	abstract = {The excess partial molar enthalpies, the vapor pressures, and the densities of dimethylsulfoxide (DMSO) - H2O mixtures were measured and the excess partial molar Gibbs energies and the partial molar volumes were calculated for DMSO and for H2O. The values of the excess partial molar Gibbs energies for both DMSO and H2O are negative over the entire composition range. The results for the water-rich region indicated that the presence of DMSO enhances the hydrogen bond network of H2O. Unlike monohydric alcohols, however, the solute-solute interaction is repulsive in terms of the Gibbs energy. This was a result of the fact that the repulsion among solutes in terms of enthalpy surpassed the attraction in terms of entropy. The data in the DMSO-rich region suggest that DMSO molecules form clusters which protect H2O molecules from exposure to the nonpolar alkyl groups of DMSO.},
	keywords = {2-BUTOXYETHANOL, 25-DEGREES-C, AQUEOUS DIMETHYLSULFOXIDE, DIMETHYL-SULFOXIDE, ENTROPIES, excess partial molar enthalpies, GIBBS ENERGIES AND VOLUMES, HEAT-CAPACITIES, LIQUID-MIXTURES, MIXING SCHEME, RANGE, SOLUTE-SOLUTE INTERACTION, TRANSITION, WATER-RICH REGION},
	isbn = {0095-9782},
	url = {<Go to ISI>://A1995QF27900007},
	author = {Lai, J. T. W. and Lau, F. W. and Robb, D. and Westh, P. and Nielsen, G. and Trandum, C. and Hvidt, A. and Koga,Yoshikata}
}
