Formation of octachloroacenaphthylene in the pyrolysis of decachlorobiphenyl
The pyrolytic degradation of decachlorobiphenyl (PCB 209) in the temperature range of 700-1000°C and at a pyrolysis time of 10 seconds generated one main chloroaromatic product. This compound has been identified by HPLC-UV, GC-MS, GC-FTIR and 13C-NMR as octachloroacenaphthylene (OCAN). The mechanism of the nearly quantitative formation of octachloroacenaphthylene (OCAN) occurs via a nonachlorobenzobarrylene radical (Z1R) as an intermediate followed by a rearrangement and further dechlorination to form OCAN. Calculations with the program THERM based on the Benson-group-theory indicated that this mechanism is not possible for lower or nonchlorinated biphenyls.
Bleise,Kleist,Guenther,Schwuger
p. 655 - 666
(2007/10/03)
Preparation of decachlorocorannulene and other perchlorinated fragments of fullerenes by electrical discharge in liquid chloroform
The discharge reaction of decachlorocorannulene and other perchlorinated fragments of fullerenes is studied in liquid chloroform using electrical discharge. Results reveal various reaction products. It is shown that all the characterized products are perchlorinated fragments of C60.
Huang,Huang,Wang,Tang,Zheng
p. 5954 - 5955
(2007/10/03)
Dicyanpolyine: neue staebchenfoermige Molekuele aus dem Kohlenstoffplasma
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Groesser, Thomas,Hirsch, Andreas
p. 1390 - 1392
(2007/10/02)
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