Polycyclic aromatic hydrocarbons (PAHs) and hydroxylated PAHs (OH-PAHs) are ubiquitous atmospheric pollutants that a concern because of their endocrine disrupting activities. In this study, seasonal air sampling was conducted in 2017 2018 Kanazawa, Ishikawa Prefecture, Japan. The concentrations variations OH-PAHs were analyzed, health risks individual congeners evaluated based on relative activ...

The computer automated structure evaluation program (CASE) has been extended to perform automatic quantitative structure-activity relationships (QSAR). Applications include the carcinogenicity of polycyclic aromatic hydrocarbons and of N-nitrosamines. Agreement with experiment is satisfactory.

Two tetraceno[2,1,12,11-opqra]tetracene-extended tetrathia-fulvalenes were prepared and found to undergo reversible conversion into their planar polycyclic aromatic hydrocarbons (PAHs) upon electrochemical oxidation - at potentials probing the best valence bond representations.

Polycyclic aromatic hydrocarbons (PAHs) as a typical class of organic semiconductors demonstrate unique optical, electrical, magnetic and other interesting properties due to their extended conjugation diverse structures.

Incorporation of polycyclic aromatic hydrocarbons into siloles enhances their light emission in solutions but lowers emission efficiency in the aggregated state. The competitive interaction between conjugation and rotation is thus studied.