Can H2 inside C60 communicate with the outside world?
Can H2 inside C60 communicate with the outside world?
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DOI：
10.1021/ja076104s
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发表时间：
2007-11
影响因子：
15
通讯作者：
J. López-Gejo;A. Martí;M. Ruzzi;S. Jockusch;K. Komatsu;Fumiyuki Tanabe;Y. Murata;N. Turro
中科院分区：
文献类型：
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作者：
J. López-Gejo;A. Martí;M. Ruzzi;S. Jockusch;K. Komatsu;Fumiyuki Tanabe;Y. Murata;N. Turro
The quenching rate constants of singlet oxygen by C60, H2@C60, D2@C6o, H2, and D2 in solution were measured. The presence of a hydrogen (H2@C60) or deuterium (D2@C60) molecule inside the fullerene did not produce any observable effect based on triplet lifetime or EPR measurements. However, a remarkable effect was found for the 1O2 quenching by C60, H2@C60, D2@C6o, H2, and D2. Singlet oxygen was generated by photosensitization or by thermal decomposition of naphthalene endoperoxide derivatives. Comparison of the rate constants for quenching of 1O2 by H2@C60 and D2@C60 demonstrates a significant vibrational interaction between oxygen and H2 inside the fullerene. The quenching rate constant for H2 is 1 order of magnitude higher than that of D2, in agreement with the results observed for the quenching of 1O2 with H2@C60 or D2@C60.
