Hückel-Aromaten: 187. Sitzung am 4. März 1970 in Düsseldorf
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Elektronisch E-Book |
| Sprache: | German |
| Veröffentlicht: |
Wiesbaden
VS Verlag für Sozialwissenschaften
1973
|
| Schriftenreihe: | Rheinisch-Westfälische Akademie der Wissenschaften, Natur-, Ingenieur- und Wirtschaftswissenschaften. Vorträge
228 |
| Schlagworte: | |
| Online-Zugang: | FLA01 Volltext |
| Beschreibung: | Ever since Kekultf's intuitive assignment of the hexagon structure to benzene, organic chemists have been captivated by the idea that there might exist other cyclically conjugated hydrocarbons besides bemcne exhibiting aromatic properties. Efforts to clarify this question experimentally have remained inclusive until fairly recently due to the lack of proper synthetic methods. It was thus left to the molecular orbital theory of unsaturated systems developed by E. Hückel to give an answer. According to this theory, aromaticity is not confined to the 6 JI-electron system, but is gener ally to be expected for cyclically conjugated systems with (411 -1 2) JI electrons, provided that they possess planar or near-planar ring skeletons. Hückel's predictions have inspired over the last twenty years numcrous experimental investigations, which in brilliant verification of the theory have led to the discovery of a host of nonbenzenoid aromatic compounds. A few years ago a consideration of molccular models made us conclude that the classical aromatic hydrocarbons naphthalcne, anthracene, naphtha ce ne etc. may be transformed into approximately planar (4 n+ 2) JI-clcctron systems by the basically simple device of bridging. As will be delineated in this lecture, an entirely new class of aromatic compounds - tcrmcd "Hückel-Aromatics" in honour of Iiiickel-- has emergcd from this conccpt |
| Beschreibung: | 1 Online-Ressource (44 S. 4 Abb) |
| ISBN: | 9783663053477 9783663053484 |
| DOI: | 10.1007/978-3-663-05347-7 |
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Datensatz im Suchindex
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| dewey-sort | 250 |
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| discipline | Allgemeine Naturwissenschaft |
| doi_str_mv | 10.1007/978-3-663-05347-7 |
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| id | DE-604.BV042465154 |
| illustrated | Not Illustrated |
| indexdate | 2024-07-10T01:22:32Z |
| institution | BVB |
| isbn | 9783663053477 9783663053484 |
| language | German |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-027900360 |
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| publishDate | 1973 |
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| series2 | Rheinisch-Westfälische Akademie der Wissenschaften, Natur-, Ingenieur- und Wirtschaftswissenschaften. Vorträge |
| spelling | Vogel, Emanuel Verfasser aut Hückel-Aromaten 187. Sitzung am 4. März 1970 in Düsseldorf von Emanuel Vogel Wiesbaden VS Verlag für Sozialwissenschaften 1973 1 Online-Ressource (44 S. 4 Abb) txt rdacontent c rdamedia cr rdacarrier Rheinisch-Westfälische Akademie der Wissenschaften, Natur-, Ingenieur- und Wirtschaftswissenschaften. Vorträge 228 Ever since Kekultf's intuitive assignment of the hexagon structure to benzene, organic chemists have been captivated by the idea that there might exist other cyclically conjugated hydrocarbons besides bemcne exhibiting aromatic properties. Efforts to clarify this question experimentally have remained inclusive until fairly recently due to the lack of proper synthetic methods. It was thus left to the molecular orbital theory of unsaturated systems developed by E. Hückel to give an answer. According to this theory, aromaticity is not confined to the 6 JI-electron system, but is gener ally to be expected for cyclically conjugated systems with (411 -1 2) JI electrons, provided that they possess planar or near-planar ring skeletons. Hückel's predictions have inspired over the last twenty years numcrous experimental investigations, which in brilliant verification of the theory have led to the discovery of a host of nonbenzenoid aromatic compounds. A few years ago a consideration of molccular models made us conclude that the classical aromatic hydrocarbons naphthalcne, anthracene, naphtha ce ne etc. may be transformed into approximately planar (4 n+ 2) JI-clcctron systems by the basically simple device of bridging. As will be delineated in this lecture, an entirely new class of aromatic compounds - tcrmcd "Hückel-Aromatics" in honour of Iiiickel-- has emergcd from this conccpt Science (General) Science, general Naturwissenschaft https://doi.org/10.1007/978-3-663-05347-7 Verlag Volltext |
| spellingShingle | Vogel, Emanuel Hückel-Aromaten 187. Sitzung am 4. März 1970 in Düsseldorf Science (General) Science, general Naturwissenschaft |
| title | Hückel-Aromaten 187. Sitzung am 4. März 1970 in Düsseldorf |
| title_auth | Hückel-Aromaten 187. Sitzung am 4. März 1970 in Düsseldorf |
| title_exact_search | Hückel-Aromaten 187. Sitzung am 4. März 1970 in Düsseldorf |
| title_full | Hückel-Aromaten 187. Sitzung am 4. März 1970 in Düsseldorf von Emanuel Vogel |
| title_fullStr | Hückel-Aromaten 187. Sitzung am 4. März 1970 in Düsseldorf von Emanuel Vogel |
| title_full_unstemmed | Hückel-Aromaten 187. Sitzung am 4. März 1970 in Düsseldorf von Emanuel Vogel |
| title_short | Hückel-Aromaten |
| title_sort | huckel aromaten 187 sitzung am 4 marz 1970 in dusseldorf |
| title_sub | 187. Sitzung am 4. März 1970 in Düsseldorf |
| topic | Science (General) Science, general Naturwissenschaft |
| topic_facet | Science (General) Science, general Naturwissenschaft |
| url | https://doi.org/10.1007/978-3-663-05347-7 |
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