Formation of secondary fullerene ozonides in the ozonolysis of C 60 solutions and chemiluminescence upon their hydrolysisстатья
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Дата последнего поиска статьи во внешних источниках: 19 декабря 2017 г.
Авторы:
Bulgakov R.G. ,
Nevyadovsky E.Yu ,
Ponomareva Yu G. ,
Sabirov D.Sh ,
Razumovsky S.D.
Журнал:
Russian Chemical Bulletin
Том:
55
Номер:
8
Год издания:
2006
Издательство:
Springer Nature
Местоположение издательства:
Switzerland
Первая страница:
1372
Последняя страница:
1379
DOI:
10.1007/s11172-006-0428-3
Аннотация:
The formation of secondary fullerene ozonides (SFOs) in the ozonolysis of C60 solutions in CCl4 has reliably been determined for the first time; SFOs are accumulated during the whole ozonolysis time as a suspension in CCl4. Hydrolysis of the SFOs results in chemiluminescence (CL) (I max = 2.65·108 photon s-1 mL-1), whose spectra contain maxima at 558, 608, and 685 nm. The most probable CL emitters are excited fullerene polyketones. Hydrogen peroxide was identified as a stable hydrolysis product of the SFOs by the color reaction with diphenylcarbazide and CL arisen upon the addition of an aqueous solution of FeSO4·9H2O to the hydrolyzate of the SFO. Chemiluminescence upon hydrolysis is a selective test for SFOs and allows one to find them in a complex mixture of the ozonolysis products of C60. The rate constant and activation energy of SFO hydrolysis were determined from the kinetic measurements of CL. For SFO hydrolysis several probable reactions were proposed, including the formation of the CL emitters, and their heat effects were estimated using the PM3/RHF and AM1/RHF semiempirical methods for one-and two-cage model structures of SFOs. © 2006 Springer Science+Business Media, Inc.
Добавил в систему:
Сабиров Денис Шамилевич