First came the news that Groupon China's marketing director resigned even before the company got really started. A suspicious timing to leave a business in my opinion. Then came the Superbowl Groupon ad that was very politically insensitive, to say it mildly.
53 6 CONCLUSIONS ON THE SVHC PROPERTIES 6.1 PBT, vPvB assessment Not assessed for the identification of this substance as SVHC in accordance with Article 57(f). 6.2 CMR assessment Not assessed for the identification of this substance as SVHC in accordance with Article 57(f).ue to the even slower degradation of 4-nonylphenol compared to 4-NP1-2EO (DegT50 46.2 days (primary degradation) to no elimination after 703 day in anaerobic freshwater sediment-depending on linear or branched isomers), it can be assumed that the formation of 4-nonylphenol exceeds its degradation.
If an anti-aromatic ring can become non aromatic by conforming to nonplanar, it will. The NH, O, and S you refer to are probably pyrrole, furan, and thiphene. In furan, for example, the carbon atoms only contribute 4 electrons to the pi structure, which is very unstable.. must have a ring. 4. 4n+2. if 4n=antiaromatic. If a 4n structure can conform to a nonplanar configuration, it is nonaromatic. I believe the rule of thumb is that any ring with over 8 atoms can conform to nonplanar.