Difference between revisions of "Acene"

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{{clear}}
 
{{clear}}
 
{| class="wikitable"
 
{| class="wikitable"
! Naam
+
! Name
 
! [[Molecular formula]]
 
! [[Molecular formula]]
! Number of rings
+
! Number<br/>of rings
 
! [[Molar mass]]
 
! [[Molar mass]]
 
! [[CAS number]]
 
! [[CAS number]]
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| [[Naphthalene]]
 
| [[Naphthalene]]
 
| C<sub>10</sub>H<sub>8</sub>
 
| C<sub>10</sub>H<sub>8</sub>
| 2
+
| align=center | 2
 
| 128.17 g/[[Mole (unit)|mol]]
 
| 128.17 g/[[Mole (unit)|mol]]
 
| 91-20-3
 
| 91-20-3
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| [[Anthracene]]
 
| [[Anthracene]]
 
| C<sub>14</sub>H<sub>10</sub>
 
| C<sub>14</sub>H<sub>10</sub>
| 3
+
| align=center | 3
 
| 178.23 g/[[Mole (unit)|mol]]
 
| 178.23 g/[[Mole (unit)|mol]]
 
| 120-12-7
 
| 120-12-7
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| [[Tetracene]]
 
| [[Tetracene]]
 
| C<sub>18</sub>H<sub>12</sub>
 
| C<sub>18</sub>H<sub>12</sub>
| 4
+
| align=center | 4
 
| 228.29 g/[[Mole (unit)|mol]]
 
| 228.29 g/[[Mole (unit)|mol]]
 
| 92-24-0
 
| 92-24-0
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| [[Pentacene]]
 
| [[Pentacene]]
 
| C<sub>22</sub>H<sub>14</sub>
 
| C<sub>22</sub>H<sub>14</sub>
| 5
+
| align=center | 5
 
| 278.35 g/[[Mole (unit)|mol]]
 
| 278.35 g/[[Mole (unit)|mol]]
 
| 135-48-8
 
| 135-48-8
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| [[Hexacene]]
 
| [[Hexacene]]
 
| C<sub>26</sub>H<sub>16</sub>
 
| C<sub>26</sub>H<sub>16</sub>
| 6
+
| align=center | 6
 
| 328.41 g/[[Mole (unit)|mol]]
 
| 328.41 g/[[Mole (unit)|mol]]
 
| 258-31-1
 
| 258-31-1
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| [[Heptacene]]
 
| [[Heptacene]]
 
| C<sub>30</sub>H<sub>18</sub>
 
| C<sub>30</sub>H<sub>18</sub>
| 7
+
| align=center | 7
 
| 378.46 g/[[Mole (unit)|mol]]
 
| 378.46 g/[[Mole (unit)|mol]]
 
|
 
|

Revision as of 15:27, 28 June 2010

The general structural formula for acenes

Acenes (sometimes referred to as polyacenes) form a functional class of organic compounds: they are polycyclic aromatic hydrocarbons made up of linearly fused benzene rings.[1] The larger acenes have potential interest in optoelectronic applications and as organic semiconductors.[2][3] Pentacene has been incorporated into organic field-effect transistors, reaching charge carrier mobilities as high as 5 cm2/Vs.[2] Unsubstituted acenes larger than pentacene have only been studied by matrix isolation techniques,[2][3][4] although substituted acenes up to nonacene have been isolated.[2][5]

Name Molecular formula Number
of rings
Molar mass CAS number Structural formula
Naphthalene C10H8 2 128.17 g/mol 91-20-3 Naphthalene-2D-Skeletal.svg
Anthracene C14H10 3 178.23 g/mol 120-12-7 Anthracene-2D-Skeletal.png
Tetracene C18H12 4 228.29 g/mol 92-24-0 220px
Pentacene C22H14 5 278.35 g/mol 135-48-8 Pentacene.svg
Hexacene C26H16 6 328.41 g/mol 258-31-1 Hexacene.svg
Heptacene C30H18 7 378.46 g/mol Heptaceen.png

Related compounds

A related group of compounds with 1,2-fused rings and with helical not linear structures are the helicenes. Polyquinanes and quinenes are fused cyclopentane rings.

References

  1. Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995). Pure Appl. Chem. 1995, 67 (8-9), 1307–75 at 1310. DOI: 10.1351/pac199567081307.
  2. 2.0 2.1 2.2 2.3 Anthony, John  E. The Larger Acenes: Versatile Organic Semiconductors. Angew. Chem., Int. Ed. Engl. 2008, 47 (3), 452–83. DOI: 10.1002/anie.200604045.
  3. 3.0 3.1 Zade, Sanjio S.; Bendikov, Michael Heptacene and Beyond: the Longest Characterized Acenes. Angew. Chem., Int. Ed. Engl. 2010, 49 (24), 1012–15. DOI: 10.1002/anie.200906002.
  4. Tönshoff, Christina; Bettinger, Holger F. Photogeneration of Octacene and Nonacene. Angew. Chem. Int. Ed. Engl. 2010, 49 (24), 4125–28. DOI: 10.1002/anie.200906355.
  5. Kaur, Irvinder; Jazdzyk, Mikael; Stein, Nathan N.; Prusevich, Polina; Miller, Glen P. Design, Synthesis, and Characterization of a Persistent Nonacene Derivative. J. Am. Chem. Soc. 2010, 132 (4), 1261–63. DOI: 10.1021/ja9095472.
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