Role of hypobromous acid in the transformation of polycyclic aromatic hydrocarbons during chlorination

2021 ◽  
pp. 117787
Author(s):  
Quanzhen Liu ◽  
Xiong Xu ◽  
Jianjie Fu ◽  
Yanjun Du ◽  
Lihua Lin ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Hypobromous Acid ◽  
Polycyclic Aromatic

Role of alterations in ca2+‐associated signaling pathways in the immunotoxicity of polycyclic aromatic hydrocarbons

1995 ◽  
Vol 45 (2) ◽  
pp. 101-126 ◽  
Author(s):  
Donna R. Davila ◽  
DeAnn P. Davis ◽  
Kerry Campbell ◽  
John C. Cambier ◽  
Letitia A. Zigmond ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Signaling Pathways ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic

9,10-Dinaphthylphenanthrene: Synthese, Rotationsisomerie und Photocyclisierung zu polycyclischen aromatischen Kohlenwasserstoffen9,10-Dinaphthylphenanthrenes: Synthesis, Rotational Isomers and Photocyclization to Polycyclic Aromatic Hydrocarbons

1992 ◽  
Vol 47 (12) ◽  
pp. 1764-1774 ◽  
Author(s):  
Karl-Dietrich Gundermann ◽  
Elke Romahn ◽  
Maximilian Zander
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Energy Transfer ◽  
Nmr Spectroscopy ◽  
Aromatic Hydrocarbons ◽  
Trans Isomers ◽  
Preparative Scale ◽  
Rotational Isomers ◽  
Polycyclic Aromatic

9,10-Di(1-naphthyl)phenanthrene (5 a) and 9,10-di(2-naphthyl)phenanthrene (5 b) have been synthesized. It is shown that 5 a and 5b both form two stable rotational (cis/trans) isomers with the naphthalene molecular planes perpendicular to the phenanthrene plane. In the case of 5 a the mixture of the two isomers has been separated in a preparative scale and each isomer characterized by e. g., NMR spectroscopy. Photocyclization of 5a leads to benzo[e]phenanthro[1,2,3,4-ghi]perylene (9) while 5 b yields phenanthro[9,10-i]pentahelicene (14); both hydrocarbons have not been previously described in the literature. The observed selectivities of photocyclization are explained on the basis of the structures and stabilities of the initially formed photoproducts (dihydro structures 15 and 14 a). The role of intramolecular non-radiative singlet-singlet energy transfer (naphthalene → phenanthrene) as competing with photocyclization is discussed in detail.

The Role of Iron Oxide on the Photodegradation of Polycyclic Aromatic Hydrocarbons: Characterization and Toxicity

2018 ◽  
Vol 40 (2) ◽  
pp. 524-534 ◽  
Author(s):  
Montse Marquès ◽  
Daniel Cervelló ◽  
Montse Mari ◽  
Jordi Sierra ◽  
Marta Schuhmacher ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Iron Oxide ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic
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