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[摘要]：Two novel fullerene dyads C-60-CBP (3) and C-70-CBP (4) containing an electron donor 4,4'-dicarbazole-1,1'-biphenyl (CBP) unit have been prepared through 1,3-dipolar cycloaddition reactions in situ. Their structures are characterized by H-1 NMR, C-13 NMR, FTIR, and MALDI-TOF-MS. Spectroscopic and electrochemical properties of 3 and 4 are studied in detailed by UV-vis, fluorescence, and cyclic voltammetric analysis, which present diminutive electronic interactions between the C-60/C-70 and CBP units, and the half wave potentials of 3 and 4 are more negative than those of C-60/C-70. The two-photon absorption (TPA) properties are determined for them by Z-scan method. Their geometric were optimized by the OFT calculations on the level at 6-31G (d,p) basis set. (c) 2010 Elsevier B.V. All rights reserved. |
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