By Ernest L. Eliel, Samuel H. Wilen, Norman L. Allinger
Read or Download Topics in Stereochemistry, Volume 10 PDF
Similar physical chemistry books
Molecular thought of Solvation offers the hot growth within the statistical mechanics of molecular drinks utilized to the main interesting difficulties in chemistry at the present time, together with chemical reactions, conformational balance of biomolecules, ion hydration, and electrode-solution interface. The continuum version of "solvation" has performed a dominant function in describing chemical techniques in answer over the last century.
Integrating insurance of polymers and organic macromolecules right into a unmarried textual content, actual Chemistry of Macromolecules is thoroughly dependent to supply a transparent and constant source for novices and pros alike. the fundamental wisdom of either biophysical and actual polymer chemistry is roofed, besides vital phrases, simple structural homes and relationships.
This sequence presents the chemical physics box with a discussion board for serious, authoritative reviews of advances in each zone of the self-discipline.
This article deals authoritative contributions from approximately 2 hundred leaders within the box and new how to increase catalytic reactions. "Catalysis of natural Reactions" covers ways for designing, enhancing, and changing catalysts for greater functionality, functionality, and balance, tactics to minimize spinoff formation, and inexpensive possible choices for the hydrogenation of natural compounds.
- Solar Production of Hydrogen by Water Photoelectrolysis
- Nonlinear Optical Properties of Organic Molecules and Crystals. Volume 2
- Physical Chemistry of Polymer Solutions: Theoretical Background
- Principles of Electrochemistry
- Bioscience Methodologies in Physical Chemistry: An Engineering and Molecular Approach
Extra resources for Topics in Stereochemistry, Volume 10
Consequently it was suggested (35) that to discuss such cases in terms of well-defined "envelopes" or "half-chairs" with "equatorial" or "axial" substituents probably leads to gross oversimplification and, in the hands of the uninitiated, to erroneous interpretations. C. 0]decane (perhydroa z u l e n e s 1 6 , 1 7 ) (37). Boyd and co-workers (37) have used f o r c e - f i e l d c a l c u l a - t i o n s w i t h energy minimization t o i n v e s t i g a t e , among o t h e r compounds, s t r a i n e d c y c l i c hydrocarbons, t h e c r i t e r i o n o f s u c c e s s b e i n g , a s i s u s u a l l y t h e c a s e , t h e agreement of c a l c u l a t e d h e a t s o f formation (hence s t r a i n e n e r g i e s ) w i t h e x p e r i mental v a l u e s ( s e e Table 4 f o r s t r u c t u r a l p a r a m e t e r s ) .
Benzion Fuchs 53 t h a t such simple c o r r e l a t i o n s (185) a r e probably i n e r r o r , due t o t h e a l r e a d y mentioned d e p a r t u r e from t r i g o n a l symmetry i n such systems. Conformational arguments have a l s o been used i n chemical s t u d i e s , such a s t h e s t e r e o c h e m i s t r y of e n o l i z a t i o n of 1 7 - k e t o s t e r o i d s (186b) and t h e e q u i l i b r a t i o n of 2-hydroxyA-norcholestanol ( 1 8 9 ) . E x t e n s i v e ORD and CD s t u d i e s of A-nor and D-ring k e t o n e s have been performed (190) w i t h r e a s o n i n g a l o n g l i n e s s i m i l a r t o t h o s e used by Ouannes and Jacqy$s f o r s u b s t i t u t e d c y c l o pentanones ( 3 9 ) .
The trans-lI2-dihalogen compounds 57 seem to prefer "diaxial" conformations (159a,b). The epimeric 1-indanols have also been studied (159~). 5 7 E. 0]hexane (11). Its basic conformation is imposed to the extent that the fusion must be cis and the fivemembered ring constrained to an envelope, but it can, in principle, choose between a chair or a boat conformation. It turns out that the latter is the actual form of occurrence for virtually all derivatives (58-65) that have been investigated structurally.
Topics in Stereochemistry, Volume 10 by Ernest L. Eliel, Samuel H. Wilen, Norman L. Allinger