Perylene drying

J It has been shown by Rooney and Pink (114) that fresh dry AICI3, known as coordination agent, has also electrophilic univalent oxidation properties. When brought in contact with anthracene, chrysene, and perylene in solutions, an EPR spectrum with hyperfine structure appears, characteristic of the cation radicals of these hydrocarbons. 

In an assessment of STORET data covering the period 1980-1982, Staples et al. (1985) reported median concentrations in sediment of <500 gg/kg dry weight for 15 PAHs (acenaphthene, acenaphthylene, anthracene, benz[a]anthracene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[g,h,i]perylene, benzo[a]pyrene, chrysene, fluoranthene, fluorene, indenopyrene, naphthalene, phenanthrene, and pyrene). The number of sample ranged from 236 (anthracene) to 360 (benzo[a]pyrene, fluoranthene) the percentage of samples in which these PAHs were detected ranged from 6.0 (acenaphthene, benzo[b]fluoranthene, benzo[k]fluoranthene, indeno[1,2,3-c,d]pyrene) to 22.0 (fluoranthene, pyrene). 

Concentration sums of the lower molecular weight PAHs (Table 2, naphthalene to anthracene) obtained for the surficial sediment samples collected at sites 3B and 5B were 1040 and 920 pg/kg dry wt., respectively. Corresponding sums of the higher molecular weight PAHs (fluoranthene to benzo[g,h,i]perylene) were 9600 and 5800 pg/kg dry wt. TOC concentrations were... 

The materials and methods used are identical to those described above for FeOCl(TTF)i/8 5. A flask is charged with 0.200 g (1.80 mmol) FeOCl and 0.400 (1.6 mmol) perylene (Aldrich Chemical Co.). Freshly distilled dimeth-oxyethane 20.0 mL is then added by syringe. Because of the poor solubility of perylene in the solvent, much of the intercalant is suspended in the solvent at this point. The flask is then evacuated and purged with dry nitrogen several times and sealed at the vapor pressure of the solvent. The flask is then wrapped in A1 foil, and heated in an oilbath at 85 ° for 30 days. After this time, the solid is collected on a glass frit, washed with 3(X) mL CH2CI2 in 30 mL portions, and 100 mL DME, and dried in vacuo. 

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