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Int. J. Mol. Sci. 2006, 7(10), 451-455; doi:10.3390/i7100451

Communication

Additional Solvent Ionizing Power Values for Binary Water- 1,1,1,3,3,3-Hexafluoro-2-propanol Solvents

Dennis N. Kevill ^1,*  and Zoon Ha Ryu ²

¹ Department of Chemistry and Biochemistry, Northern Illinois University, Dekalb, Illinois 60115-2862, U.S.A. ² Department of Chemistry, Dong-Eui University, 995 Eomgwangno, Busan-Jin-Gu, Busan 614-714, Korea

* Author to whom correspondence should be addressed.

Received: 19 October 2006 / Accepted: 27 October 2006 / Published: 30 October 2006

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Abstract: Determinations of the specific rates of solvolysis of 1-adamantyl bromide and 1-adamantyl iodide in 1,1,1,3,3,3-hexafluoro-2-propanol-water mixtures, in conjunction withearlier reported values in 80% ethanol, have led to additional YBr and YI solvent ionizingpower values. These new values will be especially important in avoiding multicollinearitywhen the extended Grunwald-Winstein equation (extended by addition of a term involvingsolvent nucleophilicity) is used to correlate solvent-induced changes in the specific rates ofsolvolyses involving a bromide or iodide ion leaving group.

Keywords: 1-adamantyl bromide; 1-adamantyl iodide; 1; 1; 1; 3; 3; 3-hexafluoro-2-propanol; Grunwald-Winstein equation; solvent ionizing power.

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