Definitions for annulene
an·nu·lene

WiktionaryRate this definition:0.0 / 0 votes

1. annulenenoun

   Any monocyclic hydrocarbon, of general formula CH (where n is even), or CH (where n is odd).

WikipediaRate this definition:0.0 / 0 votes

1. Annulene

   Annulenes are monocyclic hydrocarbons that contain the maximum number of non-cumulated or conjugated double bonds ('mancude'). They have the general formula CnHn (when n is an even number) or CnHn+1 (when n is an odd number). The IUPAC naming conventions are that annulenes with 7 or more carbon atoms are named as [n]annulene, where n is the number of carbon atoms in their ring, though sometimes the smaller annulenes are referred to using the same notation, and benzene is sometimes referred to simply as annulene.The first three even annulenes are cyclobutadiene, benzene, and cyclooctatetraene ([8]annulene). Some annulenes, namely cyclobutadiene, cyclodecapentaene ([10]annulene), cyclododecahexaene ([12]annulene) and cyclotetradecaheptaene ([14]annulene), are unstable, with cyclobutadiene extremely so. In the related annulynes, one double bond is replaced by a triple bond.

WikidataRate this definition:0.0 / 0 votes

1. Annulene

   Annulenes are completely conjugated monocyclic hydrocarbons. They have the general formula CnHn or CnHn+1. The IUPAC naming conventions are that annulenes with 7 or more carbon atoms are named as [n]annulene, where n is the number of carbon atoms in their ring, though sometimes the smaller annulenes are referred to using the same notation, and benzene is sometimes referred to simply as annulene. The first three annulenes are cyclobutadiene, benzene, and cyclooctatetraene. Some annulenes, namely cyclobutadiene, cyclodecapentaene or [10]annulene, cyclododecahexaene or [12]annulene and cyclotetradecaheptaene, are unstable, with cyclobutadiene extremely so. Annulenes may be aromatic, non-aromatic, or anti-aromatic. Only cyclobutadiene and benzene are fully planar, though [14] and [18]annulene with all trans double bonds can achieve the planar conformation needed for aromaticity, with [14] and [18]annulene following Hückel's rule with 4n+2 π electrons. [14]annulene does exhibit some ring strain due to steric hindrance.

How to pronounce annulene?

1. Alex

   US English

   David

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   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

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   Zira

   US English

   Oliver

   British

   Wendy

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   Fred

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   Tessa

   South African

How to say annulene in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of annulene in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of annulene in Pythagorean Numerology is: 5

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Annulene
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Annulene
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=annulene