Analysis of the ?-electronic structure of infinitely large networks. I. Some remarks on the characteristic polynomial and density of states of large polycyclic aromatic hydrocarbons

1987 ◽  
Vol 8 (4) ◽  
pp. 358-366 ◽  
Author(s):  
Haruo Hosoya ◽  
Misako Aida ◽  
Reiko Kumagai ◽  
Kazu Watanabe
Keyword(s):  
Electronic Structure ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Characteristic Polynomial ◽  
Density Of States ◽  
Aromatic Hydrocarbons ◽  
Large Networks ◽  
Polycyclic Aromatic ◽  
Large Polycyclic Aromatic Hydrocarbons

scholarly journals A Review on Carbon-rich Molecules in Space

2012 ◽  
Vol 10 (H16) ◽  
pp. 720-722 ◽  
Author(s):  
Franco Cataldo ◽  
D. Aníbal García-Hernández ◽  
Arturo Manchado
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Electronic Absorption ◽  
Aromatic Hydrocarbons ◽  
Electronic Absorption Spectra ◽  
Heavy Petroleum ◽  
Carbon Chains ◽  
Petroleum Fractions ◽  
Polycyclic Aromatic ◽  
Large Polycyclic Aromatic Hydrocarbons ◽  
Related Derivative

AbstractWe present and discuss carbon-rich compounds of astrochemical interest such as polyynes, acetylenic carbon chains and the related derivative known as monocyanopolyynes and dicyanopolyynes. Fullerenes are now known to be abundant in space, while fulleranes - the hydrogenated fullerenes - and other carbon-rich compounds such as very large polycyclic aromatic hydrocarbons (PAHs) and heavy petroleum fractions are suspected to be present in space. We review the synthesis, the infrared spectra as well as the electronic absorption spectra of these four classes of carbon-rich molecules. The existence or possible existence in space of the latter molecules is reported and discussed.

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