Standard partial molal heat capacities of sodium tetraphenylboron in aqueous solution from 0 to 90.deg.. Effect of water structure and hydrophobic hydration

1968 ◽  
Vol 72 (7) ◽  
pp. 2525-2531 ◽  
Author(s):  
S. Subramanian ◽  
J. C. Ahluwalia



Cold neutron inelastic scattering experiments have been performed on dilute aqueous solutions of (CD 3 ) 3 COH and of solutions of (CH 3 ) 3 COH in D 2 O at 21 °C. From the broadening of the quasi-elastic peak and independently determined self-diffusion coefficients ( D ), diffusive lifetimes ( c ) of H 2 O molecules have been calculated as functions of solute concentration. The product Dc is insensitive to concentration, giving a mean diffusion step length of 0.14 nm. The inelastic portion of the spectrum, reflecting lattice-like hydrogen bonding modes indicates that the solute enhances the water ‘structure’ but that such structure bears no resemblance to ice.





2017 ◽  
Vol 56 (33) ◽  
pp. 9782-9785 ◽  
Author(s):  
Oliver S. Hammond ◽  
Daniel T. Bowron ◽  
Karen J. Edler


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