Advances in Heterocyclic Chemistry, Vol. 40 by Alan R. Katritzky (Ed.) PDF

By Alan R. Katritzky (Ed.)

ISBN-10: 0120206404

ISBN-13: 9780120206407

(from preface)Life starts at forty! definitely for Advances in Heterocyclic Chemistry the 40th quantity marks a few relatively far-reaching adjustments within the sequence. those adjustments are defined intimately within the introductory bankruptcy ''Advances in Heterocyclic Chemistry: Prospect and Retrospect'' via your editor and Carol Drum, however it is acceptable to spotlight crucial options during this preface. First, we now have addressed the long-standing challenge of indexing. quantity forty incorporates a topic index for all of the forty typical volumes of the sequence including the 2 supplementary volumes. also, we've instituted an index of names of the participants of chapters for our sequence, back spanning the entire forty two volumes. we now have additionally thoroughly revised the prevailing index of bankruptcy titles. sooner or later, those 3 indexes will look each 5 volumes; hence the following ''index volume'' may be forty five. We think that this approach will give you the greatest profit to readers of the sequence, whereas warding off undue repetition...

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L. , E. W. Stout, and J. J. Bell, Theor. Chim. Acta 8,203 (1967). (I * S. Katagiri and C. Sandorfy, Theor. Chim. Acta 4,203 (1966). W. Adam, A. Grimison, and G. Rodriguez, Tetrahedron 23,2513 (1967). J. T. , Perkin Trans. 2,479 (1972). D. T. Clark, Tetrahedron 24,4689 (1968). T. K. Ha, J. Mol. Struct. 87 (1979). I. G. John and L. Radom, J. Am. Chem. Soc. 100,3981 (1978). F. R. Cordeil and J. E. Boggs, J . Mol. Struct. 85, 163 (1981). E. Clementi, H. Clementi, and D. R. Devis, J . Chem. Phys. 46,4725 (1967).

E. W. Stout, and J. J. Bell, Theor. Chim. Acta 8,203 (1967). (I * S. Katagiri and C. Sandorfy, Theor. Chim. Acta 4,203 (1966). W. Adam, A. Grimison, and G. Rodriguez, Tetrahedron 23,2513 (1967). J. T. , Perkin Trans. 2,479 (1972). D. T. Clark, Tetrahedron 24,4689 (1968). T. K. Ha, J. Mol. Struct. 87 (1979). I. G. John and L. Radom, J. Am. Chem. Soc. 100,3981 (1978). F. R. Cordeil and J. E. Boggs, J . Mol. Struct. 85, 163 (1981). E. Clementi, H. Clementi, and D. R. Devis, J . Chem. Phys. 46,4725 (1967).

The free-energy change of the process in Eq. (8) is defined as the gas-phase acidity of the (charged or neutral, respectively) conjugate acid of the base (AG;"+). B+H+ -AG: = AGg,+ BH+{ -AH; = PA(B) Thus the direction of the proton-transfer reaction of Eq. (3) gives the relative gas-phase basicities of bases A and B [6AGo = AG; - AG:; 6 A H o = PA(B) - PA(A)] or acidities of their conjugated acids AH+ and BH+ 54 M. SPERANZA [Sec. A @AGO = AGi,+ - AG;,+). It has been usually assumed that these free energies differ from enthalpies for proton transfer by a TASo term approximately equal to that calculable from the symmetry changes in the reaction.

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Advances in Heterocyclic Chemistry, Vol. 40 by Alan R. Katritzky (Ed.)


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