9783540097556 - Steric Fit in Quantitative Structure-Activity Relations (Lecture Notes in Chemistry): 15 di Balaban, A.T. (10 risultati)

Condizione: Used - Good. Good paperback. 1st edition. Lecture Notes in Chemistry 15. Bodleian Library stamps & notation on cover & title page; small red ink stain on spine; slight wear to spine joints Used - Good. Good paperback.

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Paperback. Condizione: Brand New. 1st edition. 196 pages. 9.61x6.69x0.45 inches. In Stock.

Taschenbuch. Condizione: Neu. Druck auf Anfrage Neuware - Printed after ordering - Although the importance of steric fit for receptor-effector 1 interactions was recognized since Emil Fischer proposed his 'lock and key' theory, the whole area of steric properties is still in a very 2-4 early stage of development. We have a fairly good idea about el- tronic and hydrophobic parameters, but it is not easy to describe ste ric shapes of molecules without a large number of data. There are se veral cases of good QSAR's developed for rather large series of mole- 5 cules without steric parameters - for example see papers by Hansch , 6 or Franke , but the state of steric parameters is nevertheless one of the most important drawbacks, especially concerning the ability of en compassing, within a single QSAR, molecules of different shapes and stereoisomers. From today's steric parameters, one may mention the 7 Taft parameters E ' which gave good results in organic chemistry, the S 8 10 ra th er cum b ersome way 0 f measurIng s h ape d'ff I ere h ces 0 f Amoore - and , 11 12 AllInger ,and the L, B -B parameters of Verloop 1 4 The work described here consists of two types of approaches to the steric fit problem. The first approach consists of developing new parameters to describe different characteristics of the molecular shape (i. e. , branching, bulkiness); this is done by means of topological in dices.

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Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Detailed Contents.- 1 Introduction.- 2 Steric and other Structural Parameters for QSAR.- 2.1 Correlational Equations and Predictor Variables.- 2.2 Steric Parameters.- 2.2.1 Taft Type Steric Parameters: ES, ESc, ESo, ESe and v.- 2.2.2 Amoore Type Steric Para.

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Although the importance of steric fit for receptor-effector 1 interactions was recognized since Emil Fischer proposed his 'lock and key' theory, the whole area of steric properties is still in a very 2-4 early stage of development. We have a fairly good idea about el- tronic and hydrophobic parameters, but it is not easy to describe ste ric shapes of molecules without a large number of data. There are se veral cases of good QSAR's developed for rather large series of mole- 5 cules without steric parameters - for example see papers by Hansch , 6 or Franke , but the state of steric parameters is nevertheless one of the most important drawbacks, especially concerning the ability of en compassing, within a single QSAR, molecules of different shapes and stereoisomers. From today's steric parameters, one may mention the 7 Taft parameters E ' which gave good results in organic chemistry, the S 8 10 ra th er cum b ersome way 0 f measurIng s h ape d'ff I ere h ces 0 f Amoore - and , 11 12 AllInger ,and the L, B -B parameters of Verloop 1 4 The work described here consists of two types of approaches to the steric fit problem. The first approach consists of developing new parameters to describe different characteristics of the molecular shape (i. e. , branching, bulkiness); this is done by means of topological in dices.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 196 pp. Englisch.

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Although the importance of steric fit for receptor-effector 1 interactions was recognized since Emil Fischer proposed his 'lock and key' theory, the whole area of steric properties is still in a very 2-4 early stage of development. We have a fairly good idea about el- tronic and hydrophobic parameters, but it is not easy to describe ste ric shapes of molecules without a large number of data. There are se veral cases of good QSAR's developed for rather large series of mole- 5 cules without steric parameters - for example see papers by Hansch , 6 or Franke , but the state of steric parameters is nevertheless one of the most important drawbacks, especially concerning the ability of en compassing, within a single QSAR, molecules of different shapes and stereoisomers. From today's steric parameters, one may mention the 7 Taft parameters E ' which gave good results in organic chemistry, the S 8 10 ra th er cum b ersome way 0 f measurIng s h ape d'ff I ere h ces 0 f Amoore - and , 11 12 AllInger ,and the L, B -B parameters of Verloop 1 4 The work described here consists of two types of approaches to the steric fit problem. The first approach consists of developing new parameters to describe different characteristics of the molecular shape (i. e. , branching, bulkiness); this is done by means of topological in dices. 196 pp. Englisch.

Taschenbuch. Condizione: Neu. Steric Fit in Quantitative Structure-Activity Relations | A. T. Balaban (u. a.) | Taschenbuch | vii | Englisch | 1980 | Springer | EAN 9783540097556 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu Print on Demand.