Bisphenol A biradical

Fig. 3.3 Structures of the lithiated bisphenol A biradical. Carbon atoms are shown brown, oxygen red, lithium cation violet, and hydrogen white...

Arulmozhiraja S, Coote ML, Kitahara Y, Juhasz M, Fujii T. Is the bisphenol A biradical formed in the pyrolysis of polycarbonate J Phys Chem A. 2011 115 4874—81. 

As discussed in Sect. 9.2, lAMS has been applied in the study of atmospheric processes. As such, lAMS can contribute to an understanding of acid rain, smog, and other air contamination processes in the atmosphere. Important additional tools in this respects are the aerosol mass spectrometer (Sect. 6.2) and the infrared image furnace (IIF, Sect. 6.4.3). The latter system was involved in studying combustion of polycarbonates, which may result in the emission of the endocrine disraptor bisphe-nol A. Li+-IAMS enabled the detection of the bisphenol A biradical [21]. Similarly, EGA-IAMS has been used to study the pyrolysis of polyacrylamide, which among others results in the suspected carcinogenic monomeric acrylamide [22]. 

However, the more sterically constrained bisphenol 8 is oxidized to a product that apparently is an equilibrium mixture of a fully bonded singlet 9 and a biradical triplet species 10.88... 

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