{"title":"A Graovac","description":null,"products":[{"product_id":"topological-approach-to-the-chemistry-of-conjugated-molecules-book-a-graovac-9783540084310","title":"Topological Approach to the Chemistry of Conjugated Molecules","description":"\"The second step is to determine constitution, Le. which atoms are bonded to which and by what types of bond. The result is ex­ pressed by a planar graph (or the corresponding connectivity mat­ rix) •••• In constitutional formulae, the atoms are represented by letters and the bonds by lines. They describe the topology of the molecule.\" VLADIMIR PRELOG, Nobel Lecture, December l2;h 1975. In the present notes we describe the topological approach to the che­ mistry of conjugated molecules using graph-theoretical concepts. Con­ jugatedstructures may be conveniently studied using planar and connec­ ted graphs because they reflect in the simple way the connectivity of their pi-centers. Connectivity is important topological property of a molecule which allows a conceptual qualitative understanding, via a non­ numerical analysis, of many chemical phenomena or at least that part of phenomenon which depends on topology. This would not be possible sole­ ly by means of numerical (molecular orbital) analysis.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ GARDNERS","offer_id":49736430092561,"sku":"NGR9783540084310","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ NEW \/ INGRAM","offer_id":52665409798417,"sku":"NLS9783540084310","price":0.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/3540084312.jpg?v=1751158966"}],"url":"https:\/\/www.worldofbooks.com\/collections\/author-books-by-a-graovac.oembed","provider":"World of Books ","version":"1.0","type":"link"}