Polychlorobiphenyl molecules

The electrolytic displacement of the chlorines of polychlorobiphenyl molecules (PCBs) has been demonstrated as effective technology for hazardous waste remediation,8 for example... 

The facile reactivity of perfluoroaromatic molecules with 02 - to give peroxy radicals and peroxides may represent a mode of cytotoxicity for such materials that parallels that for halogenated hydrocarbons, CeCU, and polychlorobiphenyls (PCBs). 

Another important and well-known aspect in structure/response correlation studies is the concept of congenericity. Congenericity is a fuzzy concept related to the structures of molecules in a data set. With respect to some molecular structural characteristics, chemical analogues can be considered congeneric if their structural differences are the interesting part of the study. Monosubstituted benzenes, polychlorobiphenyls, triazines, and polyaromatic hydrocarbons are all examples of the families of congeneric compounds. 

Polychlorobiphenyls (PCBs) are a group of 209 related compounds, known as congeners, which differ only in terms of number of chlorine atoms attached to the parent biphenyl molecule (Table 18.1). Rather than using the complete lUPAC name, these are commonly referred to with a number from PCB 1 to PCB 209. 

Sugimoto, H., S. Matsumoto, D. T. Sawyer, 1988. Degradation and Dehaloge-nation of Polychlorobiphenyls and Halogenated Aromatic Molecules by Superoxide Ion and by Electrolytic Reduction. Environmental Science and Technol-... 

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